1.RATCHET STOP 2.SPINDLE To avoid over tightening of micrometer across the measuring object & also ensures equal pressure force of each measurement. Shiny cylindrical component that causes the thimble to move toward the anvil. 3.LOCK NUT Component that one can tighten to hold the spindle stationary. 1.INSIDE JAWS Used to measure the internal dimension of objects. 2.EXTERNAL JAWS Used to measure the external dimension of objects. Used to measure the depth of objects. 3.DEPTH PROBE Vernier Caliper Micrometer Measures the thickness, depth, external and internal diameter of the object. Measures the thickness and diameter of a very small object just externally. Have precision of 0.1 or 0.05 mm. Typically have a precision of 0.001 mm. It has a vernier scale. It has a circular scale. When the anvil and spindle of the micrometer are brought in contact, the zero mark of the circular scale does not coincide with the baseline of the main scale. It is either above or below the base line of main scale, in which case the micrometer is said to have zero error. There are 2 types of zero error, positive and negative. DIFFERENCES BETWEEN VERNIER CALIPER AND MICROMETER VERNIER CALIPER MICROMETER ZERO ERROR OF A MICROMETER Nur Aima Natasha Binti Sali. (S57709) References: 1.More, H. (2021, September 21). Micrometer screw gauge: Principle, construction and its use. The Fact Factor. Retrieved April 17, 2023, from https://thefactfactor.com/facts/pure_science/physics/use-of-micrometer-screw-gauge/7535/ 2.Nipun. (2015, August 5). Difference between vernier caliper and micrometer. Pediaa.Com. Retrieved April 18, 2023, from https://pediaa.com/difference-between-vernier-caliper-and-micrometer/ 3.Ozil. (2023, February 28). Vernier caliper vs. Micrometer. Diffzi. Retrieved April 17, 2023, from https://diffzi.com/vernier-caliper-vsmicrometer/
anvil: theshinypart thespindle moves toward and thesamplerest against verniercaliper locking screw depth measuring blade external jaws internal jaws mainscale circular scale anvil ratchet stop spindle u-frame spindle: shinycylindricalcomponent thatcauses thethimbleto move toward theanvil ratchet stop: limit theapplied pressure byslippingatcalibrated torque internal jaws: measuringinner dimensions external jaws: measuring outer dimensions lockscrews: to fix theposition ofthe jaws oncethe object isfirmlyfixed betweenthejaws. makeit moreeasyto takeproper readings. micrometer QFZ 3713 SYUHADA ROKMAN S57741
Measureinternal & external dimensions or distanceextremely accurateas well as depth Preferred forflat devices such as ruler whichextremelysmall readingerror Usea slidingvernier scaleto measuresmall movement ofits jaws Precision: 0.1-0.05 mm 1. 2. 3. 4. Allow users to measureexternal diameters. Measurethethickness ofitems such metals. Usescrew to amplifysmall movements ofits jaws to larger movement oftherotatingscale. Precision; 0.01mm 1. 2. 3. 4. zero error micrometer: positiveerror: thezero mark ofthecircular scalelies below thezero marks ofthe mainscale. To avoid this reading, thiserror is substracted from the overall reading negativeerror: thezero mark ofthecircular scalelies abovethezero marks of the mainscale. To avoid this reading, thiserror is added from the overall reading (2021, February 22). Micrometer Screw Gauge Guide: A HighPrecisionInspectionTool. DEK.Retrieved April18, 2023,from https://www.dekmake.com/micrometer-screw-gauge/ (2015, August 5). Difference Between Vernier Caliper and Micrometer. PEDIAA.Retrieved April18, 2023,from https://pediaa.com/difference-between-vernier-caliper-and-micrometer/ (n.d.). Vernier Caliper. BYJU'S.https://byjus.com/physics/vernier-calliper/ (n.d.). Micrometer. BYJU'S.https://byjus.com/physics/micrometer/
SPINDLE – Shiny cylindrical component that causes the thimble to move toward the anvil. RATCHET STOP – The device on the end of the handle that limits applied pressure by slipping at a calibrated torque. CIRCULAR SCALE VERNIER SCALE Have an accuracy of 0.02 mm to 0.1 mm Have an accuracy of 0.01 mm Can measure the external and internal diameter of an object Can measure the thickness (external diameter) of an object only Have a wider measurement ranges Have a smaller measurement ranges VERNIER CALIPER & MICROMETER SCREW GAUGE NAME : MARCELLA MANOS (S57877) WHAT IS THE ZERO ERROR OF A MICROMETER? Zero error of a micrometer happens when the 0 marks in the main scale and in the thimble scale don't coincide at the time when the anvil and the spindle touch each other. VERNIER CALIPER R E F E R EN C ES 1) Micrometers vs Calipers: Understand the Key Differences. (2022). Reidsupply.com. Retrieved from https://www.reidsupply.com/en-us/industry-news/micrometers-vs-calipers-key-differences ) Screw Gauge - Measurements, Zero Error & Backlash Error - Physics - Aakash Byjus | AESL. (2023). Aakash.ac.in. Retrieved from https://www.aakash.ac.in/important-concepts/physics/screwgauge#:~:text=upon%20different%20errors.-,Zero%20Error%20in%20Screw%20Gauge,other%2C%20it %20has%20zero%20error. VERNIER CALIPER VS MICROMETER MICROMETER INTERNAL JAWS - used to measure the internal diameter of an object. EXTERNAL JAWS - used to measure the external diameter of an object. DEPTH PROBE - used to measure the depths of an object or a hole ANVIL- The shiny part the spindle moves toward and the sample rests against. U-FRAME MAIN SCALE THIMBLE MAIN SCALE
VERNIER CALIPER vs MICROMETER NUR AMELIA NATASYA BT SAWAL (S58199) QFZ 3713 MICROMETER DIFFERENCES VERNIER CALIPER UPPER JAWS - Measuring inside dimensions of hollow objects LOWER SCALE - Measure outer dimensions of objects DEPTH ROD - Measure the depths of holes or steps SPINDLE - Can cause the thimble to move toward the anvil U - FRAME - Prevent substantial heating up RATCHET STOP - Handle limits applied pressure by slipping at calibrated torque WHAT IS ZERO ERROR OF MICROMETER? When the screw's flat end meets a stud or anvil and the micrometre screw gauge reads something other than zero, this known as the zero error Micrometer. (2021, March 8). LibreTexts. https://phys.libretexts.org/Courses/Joliet_Junior_College/JJC_- _PHYS_110/06%3A_Demos_Techniques_and_Experiments/6.09%3A_Micrometer Representations - Chemistry LibreTexts. (2021, January 12). Scribd. https://www.scribd.com/document/490458758/4-Representations-ChemistryLibreTexts# How To Read a Micrometer. (2022, February 21). Travers The Right Tool Is Everything. https://solutions.travers.com/metalworking-machining/measuring-inspection/how-toread-a-micrometer REFERENCES
Differences Micrometer Vernier calliper Possible measurement Allow the user to measure depths, internal diameters, and external diameters. Only allow users to measure external diameters. Precision Traditional : 0.1/0.05 mm. 0.01 mm Working principle Use a sliding vernier scale to measure small movements Use a screw to amplify small movements Assignment 1 QFZ 5713 SITTI ZAIDAH BINTIMOHD DARWIS (S58282) Internal jaws External jaws Depth measuring blade Anvil Spindle Ratchet VERNIER CALLIPER MICROMETER SCREW GAUGE Stationary part Act as holding point for object Movable part that move toward/way from anvil Helps hold sample tightly Reduce the pressure being applied by sliding at a specified torque. Team, C. (2021, September 13). Micrometer: Outside & Inside Micrometers, Parts, Uses, Working Principle. Collegedunia; Collegedunia. https://collegedunia.com/exams/micrometer-physics-articleid-759 ZERO ERROR of MSG (Veerendra, 2022) (Veerendra, 2022) (Angle,Tool,Hardware Accessory PNG Clipart - Royalty Free SVG / PNG, 2019) (Team, 2021) (Team, 2021) (Team, 2021) Veerendra. (2022, November 24). What are the Measuring Instruments? A plus Topper. https://www.aplustopper.com/what-are-themeasuring-instruments/ (Markovics, 2016) Markovics, S. (2016, September 16). What is Vernier Caliper & What is it Used for? - Vernier Calipers. Vernier Calipers. https://vernierscaliper.com/what-is-vernier-caliper-what-is-it-used-for-749.html To determine the distance between two ends. Placed inside the opening. To measure the internal diameter. Tighten around the object. (Admin, 2019) (Admin, 2019) Admin. (2019, March 26). Vernier Caliper Functioning and Uses | Byju’s. BYJUS; BYJU’S. https://byjus.com/jee/verniercaliper/#:~:text=The%20different%20parts%3A%20Vernier%20caliper,placed%20on%20their%20other%20end. Measure depth of an object (Nipun, 2015) Nipun. (2015, August 5). Difference Between Vernier Caliper and Micrometer. Pediaa.com. https://pediaa.com/difference-between-verniercaliper-and-micrometer/#:~:text=The%20main%20difference%20between%20vernier,distances%20along%20the%20marked%20scale.
Vernier caliper vs Micrometer MEASUREMENT AND INSTRUMENTATION #QFZ3713 1 Parts of a Vernier caliper Outside jaws: used to measure external diameter or width of an object. Inside jaws: used to measure internal diameter of an object. Depth gauge: used to measure depths of an object or a hole. 2 3 2 1 2 3 Its least count ranges from 0.01mm to 0.0001mm. so, they provide a more accurate measurement compared to vernier caliper. have a rotating scale within the taken measurement. MICROMETER Its least count ranges from 0.1mm to 0.02mm. so, they provide a less accurate measurement compared to micrometer. have a sliding scale within the taken measurement. VERNIER CALIPER Measuring faces (Anvil & Spindle) : moveable measuring faces used to hold the object tightly. Locknut : a component that can be tightened to hold the spindle stationary. Ratchet knob : to secure the object firmly between the anvil and spindle and to prevent too much pressure from being applied to the micrometer. Parts of a Micrometer Zero error of a Micrometer Alia Nadira Binti Ahmad Naziruddin (S59622) Vernier Caliper Micrometer 3 2 1 (Engineering Discoveries, 2021) Measuring faces 1 Anvil Spindle Ratchet knob 3 Locknut References Engineering Discoveries. (2021, October 29). Vernier Caliper Types, Parts, And Working Principle. Engineering Discoveries. https://engineeringdiscoveries.com/vernier-caliper-types-parts-and-working-principle/ Sachin Thorat. (2018, March 2). Micrometer – Types , Diagram , Parts How to Read Micrometer. Learn Mechanical Engineering. https://learnmech.com/micrometer-types-diagram-parts-read-micrometer/ Viva. (2019, October 12). 10 Difference Between Vernier Caliper And Micrometer Screw Gauge - Viva Differences. Viva Differences. https://vivadifferences.com/difference-between-vernier-caliper and-micrometer-screw-gauge/ Toppr. (2020, January 9). Micrometer Screw Gauge. Toppr Ask. https://www.toppr.com/ask/content/concept/measuring-length-using-screw-gauge-208200/ (Sachin Thorat, 2018) Differences in term of measurement : (viva, 2019) (Toppr, 2020) the zero on the main scale match with a zero on the circular scale. (+ve) error of 2 circular scale division correction by substracting the (+ve) zero-error from the actual reading. (-ve) error of 4 circular division correction by adding the (-ve) zero-error from the actual reading. (a) No zero error (b) Positive zero error (c) Negative zero error
Function: Measuring inner dimensions Function: Measuring outer dimensions Function: Measuring depths Function: To prevent overtightening in order to ensure consistent with accurate measurement. Function: Provide a stable and flat surface to object that will be measured. Function: Provide a highly accurate and precise measurement reading. REFERENCES REFERENCES Inside jaws MICROMETER VS Outside jaws Stem VERNIER CALIPER Rachet Anvil Thimble (Chauhan et al., 2018) DIFFERENCES IN TERM OF MEASUREMENT ZERO ERROR OF A MICROMETER Chauhan, V., Chauhan, M., Verma, S., & Kumar, R. 2018. A Review Paper on Pitch Screw Gauge working. Pramana Research Journal 8(8). Retrieved from URL https://www.pramanaresearch.org/gallery/prj_c_ a_57.pdf Flack, D. (2014). Callipers and micrometers. Retrieved from URL https://eprintspublications.npl.co.uk/2043/ Occurs when the reading on the thimble scale is not exactly zero when its jaws are in contact. Zero error can be either positive or negative zero error depending on the position of the zero mark of the thimble scale. (Flack, 2014) Range: The range measurement of vernier caliper ( up to 150 mm) is larger than micrometer (up to 25 mm). Precision: Micrometer more precise. Micrometer can measure within 0.001mm (one-thousandth of a millimeter) while vernier caliper can measure within one-hundredth of millimeter. Function: Micrometer used to measure the diameter of object while vernier caliper is used to measure length, width, depth and thickness of objects, both inside and outside dimension. Prepared by: NUR IZYAN IZZATI BINTI MOHD NIZAM (S59679)
Vernier Caliper Main Scale Lower Jaws Upper Jaws Function: Micrometer Assingment 1 QFZ3713 (k1) Nor Syakira Binti Roslan (S59696) Function: As the main reference reading the measurement results. The main scale becomes the starting point of measurement Main Scale: Depth Rod Depth Rod: To measure the depths of holes or steps Lower Jaw: This jaw is allow to measure outer dimensions of objects such as the lenght, width or diamete (outside measurements) Upper Jaw: It is used for measuring inside dimensions of hollow objects such as inside diameter of pips, lenghts and widths of boxes etc. Ratchet Thimble Ratchet: To rotate the spindle into desired direction for measuring process, provided with ratchet action to avoid over tightening of micrometer across the measuring object Thimble: Scale of thimble is to show the measurement value in fraction C-Frame: C-Frame To provide basic structure of a micrometer in which stationary anvil located at one end and movable spindle slides inward or outward through other end of C-Frame Spindle Spindle: Moveable part, has a connection with ratchet, the spindle slides out or inward to adjust it with compare to measuring object size The least count of the Vernier Caliper ranges from 0.1 mm to 0.2 mm Vernier Caliper Micrometer The least count of micrometers ranges from 0.01 mm to 0.001 mm Differences in terms of measurement between vernier caliper and micrometer: Differences in terms of measurement between vernier caliper and micrometer: Zero error of micrometer: References: Have wide range of measurement Have smaller measurement range which is 25 mm Provide less accurate mesurement compared to Micrometer Provide more accurate mesurement compared to Vernier Caliper When the anvil and spindle of the screw gauge are made to touch each other, then the zero on the main scale match with a zero on a circular scale However, due to wear and tear or manufacturing defect, the two zeros usually do not coincide with each other,and this known as zero error Two types of zero errors; positive zero error and negative zero error More, H. (2020,March 3). Use of Micrometer Screw Gauge. Retrieved from https://thefactfactor.com/facts/pure_science/physics/use-ofmicrometer-screw-gauge/7535/ 10 Difference Between Vernier Caliper And Micrometer Screw Gauge. (2019, October 15). Retrieved from https://vivadifferences.com/differencebetween-vernier-caliper-and-micrometer-screw-gauge/ Micrometer Parts And Their Main Function. (2017, September 21). Retrieved from https://www.mechanicalmeasuring.com/micrometer-partsmain-function/ 1. 2. 3.
External Jaws Frame Thimble Vernier Caliper Micrometer Measure down to 0.02 mm Fairly uniform size Can measure internal & external diameter MEASUREMENT AND INSTRUMENTATION Locking Screw VERNIER CALIPER Main Scale MICROMETER Spindle FUNCTION Fix the position of the jaws once the object positioned properly Give measurements in mm Used to measure external diameter or width of an object Locking Screw : Main Scale : External jaws : FUNCTION Holding the object to be measured Represents the range of measurements To magnify the resolution of the main scale Spindle : Frame : Thimble : VERNIER CALIPER VS MICROMETER Can measure down to 0.001 mm Has different ranges (1" - 6") Can measure either outside diameter or inside diameter NURUL NABILAH BINTI MOHAMAD (S60455) REFERENCES : 1. Micrometer Parts and Their Main Function. (2017, September 21). Mechan8cal Measuring. Retrieved from https://www.mechanicalmeasuring.com/micrometerparts-main-function/ 2. Jiun Wei Chia. (2014). Vernier Calipers. Retrieved from https://www.compadre.org/osp/EJSS/3953/106.htm 3. Miftah Habibi. (2020). What is the difference between a micrometer and a vernier caliper?. Quora.com. Retrieved from https://www.quora.com/What-is-thedifference-between-a-micrometer-and-a-vernier-caliper Resolution Range Purpose Zero error in micrometer? Zero in timble and datum line on sleeve do not coincide when measuring faces in contact
Vernier Calliper Micrometre Screw Gauge Uses two sliding scales with different spacings between markings on each scale. Use of a screw to translate small distances moved by its jaws to larger distances along the marked scale. Can read up to 0.05mm Can read up to 0.01mm Less accurate More accurate Name: Mohamad Hazrule Hanief Bin Zainudin. Matric Number: S63000 References: 1. Fully Instrumented. (n.d.). Micrometer Body Parts [Webpage]. Retrieved April 15, 2023, from https://www.fullyinstrumented.com/micrometer-body-parts/ 2. BYJU’S. (2022, December 27). Vernier Calliper - Definition, Principle, Least Count, Zero Error [Web page]. BYJU’S. https://byjus.com/physics/vernier-calliper/ 3. Viva Differences. (n.d.). Difference Between Vernier Caliper And Micrometer Screw Gauge [Webpage]. Retrieved April 15, 2023, from https://vivadifferences.com/difference-between-vernier-caliper-and-micrometer-screw-gauge/ Ratchet Knob: - It helps to apply a uniform pressure on the object being measured. Thimble (Secondary Scale): - It shows the measurement in fractions of a millimetre or inch and magnify the resolution of main scale. Lock Nut: - It is used to hold the measurement when the object is removed from the instrument. Zero error of Micrometer: • When the screw's flat end meets a stud or anvil, the micrometre screw gauge experiences zero error, which causes the gauge to read something other than zero. • If the zero of the head scale corresponds with the pitch scale axis when the plane surfaces of the screw and the opposing plane stud on the frame are brought into contact, there is no zero mistake. Upper Jaws: - to measure the inner dimensions of the objects. Depth Rod: - It is used to measure the depth of a hole or a recess by inserting it into it. Lower Jaws: - to measure the outer dimensions such as diameter, width and length.
a. Main Scale: Used to measure length or depth in metric or imperial units. b. Vernier Scale: Used to measure small divisions of the main scale. c. Upper(Internal) Jaws: Used to grip the object to be measured. d. Lower(External) Jaws: Used to measure outside diameters. e. Lock Screw: Used to lock the caliper in place a. Frame: Used to hold the anvil and spindle together. b. Sleeve: Used to display the measurement readings. c. Anvil: Used to hold the object to be measured. d. Spindle: Used to turn when adjusted. e. Ratchet Stop: Used to prevent overtightening of the micrometer. A vernier caliper is used to measure length and internal/external diameters, while a micrometer measures only length. A vernier caliper has two sets of jaws and can measure up to 6 inches, while a micrometer has a spindle and anvil and can measure up to 4 inches. A vernier caliper can measure to 0.1 mm accuracy, while a micrometer can measure to 0.01 mm accuracy. A vernier caliper is easier to use and read than a micrometer. A vernier caliper requires two hands to operate, while a micrometer requires only one. The zero error of a micrometer is the difference between the actual measurement and the reading on the micrometer. This error is caused by the imperfection of the instrument and can be corrected by adjusting the zero point on the micrometer. Vernier Caliper vs Micrometer difference? zero error mehgatharshan s65297 reference https://gaugehow.com/20 19/05/12/verniercaliper-vs-micrometerbasics-of-verniercaliper-andmicrometer/
1.The lower jaws allow the vernier caliper to measure outer dimensions of objects such as the length, width or diameter. 2.The upper jaws are placed inside the place to be measured and then opened till they touch the edges and the reading is taken at that point. 3.The thumb screw is located at the bottom of the vernier scale. Its purpose is to provide a grip for the user to slide the jaws easily and adjust the position of the jaws and depth rod while maintaining a firm grip on the object. 1. 1.Ratchet main function is to ensure that the workpiece is held with enough pressure. 2.Thimble main function of this part is to magnify the main scale’s resolution. 3.Lock works by preventing movements of the object when you are taking readings. Vernier caliper Micrometer 1. A single vernier caliper can measure inner lengths, outer lengths and depths without any change, but a micrometer can only measure one type at a time. 2 2. A micrometer is capable of measuring a difference as small as 0.01 mm in general cases. The vernier caliper only has the ability to measure differences as small as 0.05 in the extreme cases. 3.Vernier calipers use a sliding vernier scale to measure small movements of its jaws. Micrometers use a screw to amplify small movements of its jaws to larger movements of the rotating scale The zero error of a micrometer screw gauge occurs when the flat end of the screw touches the stud or anvil, and the gauge reads other than zero. 3 References 1.What Is Zero Error on a Micrometer Screw Gauge? (reference.com) 2.Difference Between Vernier Caliper and Micrometer | Compare the Difference Between Similar Terms Abdussyakir Mohd Noor S65577
Vernier Calliper Micrometer Rahchet Internal Jaws Spindle Scale External Jaws Main Scale Difference Usually Micrometer is more accurate and precise than Vernier caliper. Measurement range of micrometer is 25 mm while vernier caliper has wide range. Vernier Calliper can be used to take both internal and external measurements while Micrometer can only be used to take external measurements. Zero Error on a micrometer means when the zero on the thimble and datum line on sleeve do not coincide when measuring faces are in contact. Assignment 1
Add your idea here The zero error of a micrometer occurs when the flat end of the screw touches the stud or anvil, and the gauge reads other than zero. Zero on thimble and datum line on sleeve do not coincide when measuring faces are in contact. It is a form of error in which an instrument produces a reading while the true reading is zero at the time. VERNIER CALIPER MICROMETER Internal jaws : to measure internal diameter of an object External jaws : to measure external diameter or width of an object Locking screw : to keep the device stable when not in use Imperial scale : gives measurements in mm Metric scale : gives measurements up to one decimal places in mm Depth measuring blade : to measure depths of an object or a hole Frame : to prevent substantial heating up, it is covered by insulating plastic Anvil : The shiny part the spindle moves toward and the sample rests against Barrel : Stationary round component with a linear scale on it Screw : Found inside the barrel and is considered the heart of the micrometer Locknut : Component that one can tighten to hold the spindle stationary Spindle : Shiny cylindrical component that causes the thimble to move toward the anvil Ratchet Stop : The device on the end of the handle that limits applied pressure by slipping at a calibrated torque DIFFERENCES BETWEEN VERNIER CALIPER AND MICROMETER verniercaliper micrometer uses two sliding scales with different spacings between markings on each scale to measure external diameters, internal diameters as well as depths have a precision of 0.1 or 0.05 mm. Digital vernier calipers have a precision of 0.01 mm use of a screw to translate small distances moved by its jaws to larger distances along the marked scale to measure external diameters. Other, more specialized types of micrometers are available for measuring internal diameters and depths have a precision of 0.01 mm zero error of micrometer? Vernier calipers (compadre.org) Vernier Caliper Functioning and Uses | Byju's (byjus.com) Difference Between Vernier Caliper and Micrometer (pediaa.com) What Is Zero Error on a Micrometer Screw Gauge? (reference.com) 1. 2. 3. REFERENCES 4.
Vernier Caliper Micrometer Big jaws: Similar to small jaws in function however it is used to measure the outer dimension of an object. Main scale: Show the measurement of the objectsize. Thimble: Mounted on spindle and have scale engraved around its perimeter which use to show the measurement value in fraction. Spindle: Cylindrical long part which mounted other parts. It is movable and has connection with ratchet, as we rotate the ratchet clockwise or anti-clockwise, the spindle slides out or inward to adjust when measuring objectsize. Measuring faces: Measuring points of micrometer and hold the measuring object collectively. Vernier Caliper Micrometer Can measure inner and outer dimensions of an object Can only measure certain outer dimensions of an object Precision at 0.1 mm or 0.05 mm Precision at 0.01 mm Have wide measurement range Have small measurement range Small jaws: One part is fixed while another is movable. It is used to measure the inner dimensions of an object. What is zero error of micrometer? -A formof errorin which the micrometer produces a reading while the true reading is zero at the time. Nasuha Zakiah Binti Misraeh(S59082) Source: • Mechanical Measuring. (21 September 2017). https://www.mechanicalmeasuring.com/microm eter-parts-main-function/ • Vernier Caliper. (nd). https://byjus.com/physics/vernier-calliper/
VERNIER CALIPER VS MICROMETER Anvil QFZ 3713 MEASUREMENT AND INSTRUMENTATION NUR ZAHIRAH BINTI ASWIRMAN (S60406) Vernier Caliper Micrometer ❖ Internal Jaws: Inserted into the opening to measure the internal diameter. ❖ External jaws: To measure the distance between two ends of an object ❖ Locking screw: To maintain the measurement of the scale. ❖ Anvil: Acts as a holding point to measure an object. ❖ Spindle: A moveable part that is controlled by the ratchet to adjust it in order to measure size of an object. ❖ Sleeve: The main scale of micrometer is engraved on the sleeve. The reading is in milimeter.
VERNIER CALIPER VS MICROMETER REFERENCES • https://byjus.com/jee/vernier-caliper/ • https://www.mechanicalmeasuring.com/micrometer-parts-main-function/ • https://byjus.com/physics/micrometer/ • https://pediaa.com/difference-between-vernier-caliper-and-micrometer/ • https://vivadifferences.com/difference-between-vernier-caliper-and-micrometer-screw-gauge/ • https://www.aakash.ac.in/important-concepts/physics/screw-gauge#section3 QFZ 3713 MEASUREMENT AND INSTRUMENTATION NUR ZAHIRAH BINTI ASWIRMAN (S60406) Vernier Caliper Micrometer Can be used to measure external diameter, internal diameter and also depths Can be used to measure only external diameter Precision of 0.1 mm or 0.05 mm (less accurate reading) Precision of 0.01 mm (more accurate reading) It has a sliding scale It has a rotating scale Zero Error of Micrometer Zero error: Occur when the thimble scale and the main scale is not coincide Positive zero error: The thimble scale is above the main scale. Negative zero error: The thimble scale is below the main scale.
NAME: AYU NATASHA BINTI OTHMAN MATRIC NO: S60765 Internal Jaws External Jaws Locking Screw used to measure external diameter or width of an object used to measure internal diameter of an object used to secures the jaws into place before the readings taken. Vernier caliper Micrometer uses two sliding scales with different spacings between markings on each scale use of a screw to translate small distances moved by its jaws to larger distances along the marked scale. have a wider measurement range, typically from 0-6 inches have smaller measurement ranges, typically 0-1 inch or 1-2 inches. measure a minimum length of 0.1 mm measure a minimum length of 0.01 mm Anvil Frame Shiny cylindrical component that causes the thimble to move toward the anvil. The shiny part the spindle moves toward and the sample rests against. used to holds the anvil and barrel in constant relation to each other. Spindle Vernier caliper Vs Micrometer REFERENCES: Nipun. (2015, August 5). Difference Between Vernier Caliper and Micrometer. Retrieved from https://pediaa.com/difference-between-vernier-caliper-and-micrometer/ Etingof, M. I. (2012, November 29). Modern vernier caliper - Measurement Techniques. https://doi.org/10.1007/s11018-012-0055-3 Smela, E., Inganas, O., & Lundstrom, I. (1995). Controlled Folding of Micrometer-Size Structures. Science, 268(5218), 1735–1738. doi:10.1126/science.268.5218.1735 Zero error of a micrometer occurs when the zero on the thimble and datum line on sleeve do not coincide when measuring face are in contact
Vernier Caliper vs. Micrometer Alshamali, I. (2021). Measuring devices, bisector vernier caliper.https://www.theseus.fi/bitstream/handle/10024/507965/F inal%20thesis%20pdf.pdf?sequence=2 Morris, A. S. (2006). Measurement and instrumentation principles. Elsevier. Internal Jaws- to determine an object's interior diameter External Jaws- to determine an object's outward diameter or width Depth Measuring Scale- to determine the depth of an object or a hole Spindle- component that moves the thimble towards the anvil Lock nut- Component that can be tightened to keep the spindle steady Rachet- the device at the handle's end that restricts applied pressure by slipping at a certain torque employs two sliding scales with distinct marking spacings on each scale less accurate than micrometer it able to measure depth application of a screw to translate short distances moved by its jaws to larger distances along a specified scale more accurate than vernier caliper, where accuracy = 0.001 mm it cannot measure depth for standard micrometer Micrometer DIFFERENCES! Vernier Caliper HOW ZERO ERROR HAPPEN IN MICROMETER? it is happen when scale at thimble not coinciding with scale on sleeve (Alshamali, 2021) SITI NURHANIS DAYANA BINTI ANUAR (S60485) REFERENCES Alshamali (2021) Alshamali (2021) Morris (2006)
Internal jaw to measure the internal diameter of items External jaw to measure the external diameter of the items Main scale Show the value of measured item Anvil The shiny part the spindle moves toward and the sample rests against Frame It is the C-shaped body that holds the anvil and barrel in constant relation to each other. Rachet The device on the end of the handle that limits applied pressure by slipping at a calibrated torque. Vernier Caliper Micrometer Use two sliding scales Use screw gauges provide a precision to 0.01 mm (10 micrometres) rated accuracy of ±0.0001 inch Main scale External jaw Internal jaw Anvil Rachet Frame Zero error micrometer to check whether zero mark on thimble scale coincides with datum line on the main scale and reading on main scale is 0 when we are not measuring anything (anvil is in contact with spindle). For reading on zero error, we have to read it from thimble scale. Reference Viva. (2020, December 21). 10 Difference Between Vernier Caliper And Micrometer Screw Gauge - Viva Differences. Viva Differences. https://vivadifferences.com/differencebetween-vernier-caliper-and-micrometerscrew-gauge/ MUHAMMAD NABIL IRFAN BIN MOHD SHAIFUL RAIMAY S65342
QFZ3 7 1 3 VERNI ER CAL I P ER AND MICROME T ER SCREW GAUGE Rachet: restricts theamount of pressure byenabling movement Frame: ensurethe optimum positioning oftheanvil and barrel featuresgraduated markings, whichshould beeasyto read Advances thespindle ofthe micrometer Thimble: Inner jaws:used to measureinternal diameter ofan object. Outer Jaws:used to measureexternal diameter or width ofan object Jaws: VERNIER caliper Micrometer screw gauge Lock screw: secures thejaws into place, so the objectyouare measuringcan be removed, and readings taken. Vernier scale: provides accuracy ofthereading of the mainscale byfurther dividing thelowest reading ofthe mainscale Differences in terms of measurements Verniercaliperhaveaprecision of 0.1 or 0.05 mm. Micrometerhaveaprecision of 0.01 mm. Verniercaliper areuseto measureexternal diameters, internal diameters as well as depths. Micrometer to measureexternal diameters. Verniercaliperhavea range ofabout 300mm. Micrometerhavea range ofabout 0 to 25mm, 25 to 50mm and 50 to 70mm. Precision : Possible Measurement : Range: What and how is zero error in micrometer? Whentheanvil and spindleend are brought incontact, thezero mark ofthe circular scale doesnotcoincide withthe baseline of mainscale. It iseither above or below the baseline ofthe mainscale, in whichcasethescrew gaugeis said to havea zero error. References https://pediaa.com/difference-between-vernier-caliper-and-micrometer/amp/ http://www.phy.uct.ac.za/phy/courses/phylab1/vernier https://byjus.com/question-answer/what-do-you-mean-by-zero-error-of-a-screw-gaugehow-is-it-accounted/ G.KAVINESH S6 5 544
Micrometer Screw Gauge Muhammad Afiq bin Noordin S67099 Zero error of Micrometer QFZ 3173 Measurement and Instrumentation Vernier Caliper Internal jaws External jaws Depth measuring blade Locknut Sleeve Ratchet stop Functions Internal Jaw - To measure inside dimension of hollow objects such as internal diameter of pipes External Jaw - To grip the object firmly and to measure the outer diameter such as diameter, width, and length. Depth measuring blade - To measure depth by extending the blade out of the bottom Functions Locknut - To hold the spindle stationary Sleeve - Primary measuring scale to display the measurement taken Ratchet stop - To limit the applied pressure by slipping at callibrated torque. Releases click sound if applied appopriate preassure Differences of measurement Micrometer provides higher precision than Vernier Caliper. Vernier Caliper has a larger range of measurement than Micrometer. Vernier Caliper can measure a wide range of shape while Micrometer more suited for round and cylindrical object. Occurs when the thimble and the spindle of the Micrometer do not align at zero on the main scale when there is no object being measured References Markovics, S. (2016, December 1). Vernier Caliper Functions & Important Parts - Vernier Calipers. Vernier Calipers. https://vernierscaliper.com/vernier-caliper-functions-important-parts-784.html The Ultimate Guide To Micrometer Screw Gauge. (2021, February 22). DEK. https://www.dekmake.com/micrometer-screw-gauge/ What is the difference between Vernier caliper and screw gauge? (n.d.). What Is the Difference Between Vernier Caliper and Screw Gauge? https://www.vedantu.com/question-answer/difference-between-verniercaliper-and-class-11-physics-cbse-60d4c5bc5bde31476b3bf9f3
S66764 SONG JIA EN Vernier Calipers Vs micrometer PARTS OF VERNIER CALIPERS external jaws internal jaws Depth rod imperial scale metric scale vernier scale Thumb screw PARTS OF MICROMETER . Anivil k. spindle l. lock m.ratchet stop n. sleeve ZERO ERROR .If the zero marks in the main scale and in the thimble scale don 't coincide at the time when the anvil and the spindle touch each other, it has zero error. DIFFERENCES 1. Usually Micrometer is more accurate and precise than Vernier caliper 2. Measurement range of micrometer is 25 mm while vernier caliper has wide range. 3. Check depth by vernier caliper but in case of micrometer you have to use Depth Micrometer 4. Inside Micrometer is used for measurement of inner diameter but in case of vernier caliper it is checked by internal jaw. REFERENCES https://pediaa.com/difference-betweenvernier-caliper-andmicrometer/#:~:text=The%20main%20diffe rence%20between%20vernier,distances%2 0along%20the%20marked%20scale.
Measurement Scope Of Measurement Scale VERNIER CALIPER They have a wide range of measurement. It has special type of jaws that can take both internal and external measurements accurately. Have a sliding scale within which measurements are taken. MICROMETER SCREW GUAGE The measurement range of a micrometer screw gauge is 25 mm It is used for taking external measurements only as it does not have appropriate structure for taking the inner measurements of the object. Have a rotating scale within which measurements are taken. what is zero error? to measure internal diameter of a hallow cylinder or pipe inside jaws outside jaws to measure length of a rod, diameter of sphere, external diameter of a hallow cylinder main scale to measure length correct to up to 1 mm spindle shiny cylindrical component that causes the thimble to move toward the anvil U-frame to prevent substantial heating up, it is covered by insulating plastic ratchet stop the device on the end of the handle that limits applied pressure by slipping at a calibrated torque Vernier Vernier Caliper Micrometer icrometer Screw Guage When the plane surface of the screw and the opposite plane stud on the frame are brought into contact, if the zero of the head scale coincides with the pitch scale axis, there is no zero error MALIM AIDIL S66836 (website) Admin. (2021). Micrometer – Definition, Parts, Operating Principle & Uses. BYJUS. https://byjus.com/physics/micrometer/ (youtube) Academic Gain Tutorials. (2020, June 11). Vernier Caliper (Read Easily) - Parts & Function, Zero Error, Least Count Calculation Explained. [Video]. YouTube. https://www.youtube.com/watch?v=96zw6HiLLN8 (article) IvyPanda. (2020, June 21). The Vernier Caliper Tool Construction and Usage. https://ivypanda.com/essays/the-vernier-caliper-toolconstruction-and-usage/ References
Vernier scale Gives measurement up to one decimal places in mm Main Scale Gives measurement in mm Ratchet stop Limits applied pressure by slipping at a calibrated torque Outside jaw Use to measure external diameters Spindle Causes the thimble to move toward the anvil Anvil Moves toward and the sample rests against DIFFERENCE BETWEEN THE VERNIER CALIPER AND MICROMETER MICROMETER VERNIER CALIPER . Micrometers use a screw to amplify small movements of its jaw to larger movements of the rotating scale . Vernier caliper use a sliding vernier scale to measure small movements of its jaws . Micrometers usually measure external diameters . Vernier Caliper measures external diameters, internal diameters as well as depths . Micrometers typically has a precision of 0.01 mm . Vernier Calipers traditionally have a precision of 0.1 or 0.5 mm If the zero marks in the main scale and in the thimble scale don't coincide at the time when the anvil and the spindle touch each other, it has zero error. SWETHA ESWARAN S67024 https://gaugehow.com/2019/09/19/are-you-mechanical-engineer-learn-vernier-caliper-and-micrometer-first/ https://www.aakash.ac.in/important-concepts/physics/screwgauge#:~:text=upon%20different%20errors. - ,Zero%20Error%20in%20Screw%20Gauge,other%2C%20it%20has%20zero%20error. https://byjus.com/physics/micrometer/#:~:text=Anvil%20%E2%80%93%20The%20shiny%20part%20the,to%20hold%20the%20spindle %20stationary. https://www.compadre.org/osp/EJSS/3953/106.htm REFERENCE
Spindle: Shiny cylindrical component that causes the thimble to move toward the anvil. Anvil: The shiny part the spindle moves toward and the sample rests against. Measures internal and external measurement Least count is 0.01mm Slides to measure an object Differences in measurement: 1. 2. 3. Vernier Caliper Micrometer Inside Jaws: Measure inside dimensions of hollow objects Lock Screw (S): Fix the position of the jaws once the object is positioned Measure external measurement only Least count is 0.001mm Rotates to measure an object Differences in measurement: 1. 2. 3. https://oxscience.com/difference-between-screw-gauge-and-vernier-caliper/ https://byjus.com/physics/micrometer/ https://vernierscaliper.com/vernier-caliper-functions-important-parts-784.html References: 1. 2. 3. What is the zero error of a micrometer ? Zero error of a micrometer is when the zero on the main scale and cicular scale does not match Name: Phoo Weng Yoong Matrics no.: S67084 VERNIER CALIPER VS MICROMETER
Using environment friendly vehicles like bicycle to cover short distances Vernier Caliper Micrometer They have a wide range of measurement. The measurement range of a micrometer screw gauge is 25 mm. It has special type of jaws that can take both internal and external measurements accurately. It is used for taking external measurements only as it does not have appropriate structure for taking the inner measurements of the object. Have a sliding scale within which measurements are taken. Have a rotating scale within which measurements are taken. OUTSIDE JAWS : INSIDE JAWS : RETAINER : Used to measure external diameter or width of an object Used to measure internal diameter of an object Used to block movable part to allow the easy transferring a measurement THIMBLE : ANVIL : SPINDLE : To rotate the screw by turning it so that the object is gently held between the stud and spindle of screw The shiny part the spindle moves toward and the sample rests against Shiny cylindrical component that causes the thimble to move toward the anvil NUR IZZATY BINTI MAZLI | S67168 VIVA. (2020, DECEMBER 21). 10 DIFFERENCE BETWEEN VERNIER CALIPER AND MICROMETER SCREW GAUGE. VIVA DIFFERENCES. RETRIEVED APRIL 15, 2023, FROM HTTPS://VIVADIFFERENCES.COM/DIFFERENCE-BETWEEN-VERNIER-CALIPER-ANDMICROMETER-SCREW-GAUGE/ ADMIN. (2021, NOVEMBER 9). MICROMETER – DEFINITION, PARTS, OPERATING PRINCIPLE & USES. BYJUS. RETRIEVED APRIL 15, 2023, FROM HTTPS://BYJUS.COM/PHYSICS/MICROMETER/ ADMIN. (2022, DECEMBER 9). VERNIER CALLIPER: DEFINITION, DIAGRAM, LEAST COUNT, PARTS & APPLICATIONS X . BYJUS. RETRIEVED APRIL 15, 2023, FROM HTTPS://BYJUS.COM/PHYSICS/VERNIER-CALLIPER/ Positive zero error: When the jaws of the vernier calliper are closed, the reading is positive and away from the actual reading of 0.00 mm. For instance, if the reading is 0.08 mm, then the zero error is +0.08 mm. Negative zero error: When the jaws of the vernier calliper are closed, the reading is negative and away from the actual reading of 0.00 mm. For instance, if the reading is 0.10 mm, then the zero error is -0.10 mm. Zero error is defined as the condition in which the measuring device registers a reading when there should not be any reading. The zero error of the vernier calliper is calculated as: Actual reading = Main scale + Vernier scale – (Zero error) There are two types of zero error: Vernier Caliper Vs Micrometer
: Nur Afifah Binti Nizam : S67380 External Jaws : To measure external diameter or width of an object Depth Measuring Blade : To measure depths of an object or a hole Internal Jaws : To measure internal diameter of an object Sleeve : To mark main scale and base line Thimble : To mark circular scale Ratchet : To rotate the screw by turning it so that the object is gently held between the stud and spindle of screw Vernier Caliper Micrometer Zero Error Of Micrometer : If zero line on circular scale does not coincide with zero on the linear scale when the screw of circular scale is fully tighten or moved, the error due to this is called zero error of the screw gauge. Vernier caliper MICROMETER Its usual least count is 0.01 cm Its usual least count is 0.001 cm Its measure the thickness, depth, external and internal diameter of the object Its measure the thickness and diameter of a very small object just externally It has a vernier scale that slides to measure the length It has a circular scale that rotates to measure the objects https://oxscience.com/differencebetween-screw-gauge-and-vernier-caliper/ http://www.excelatphysics.com/micro meter-screw-gauge.html#zero https://vernierscaliper.com/vernier-caliperfunctions-important-parts-784.html R E F E R E N C E S.
Shiny cylindrical component that causes the thimble to move toward the anvil. spindle The shiny part the spindle moves toward and the samplerests against envil The device on the end of the handle that limits applied pressure by slipping at a calibrated torque rotchet to measure internal diameter of an object internal jaws used to measure external diameter or width of an object external jaws used to measure depths of an objector a hole depth measuring blade The measurement range of a micrometer screw gauge is 25 mm. They provide a more accurate measurement when compared to Vernier caliper. They provide a more accurate measurement when compared to Vernier caliper. They have a wide range of micrometer measurement. They provide a less accurate measurement when compared to micrometer screw gauge. It has special type of jaws that can take both internal and external measurements accurately. varnier caliper differences zero error of micrometer vernier caliper micrometer VS Muhamad Fakrul Hisyam Bin Mohd Susi ~ S67403 ~ references; https://www.toppr.com/a sk/enmy/content/concept/mea suring-length-usingscrew-gauge-208200/ https://www.wonkeedonk eetools.co.uk/micrometer s/what-are-the-partsof-a-micrometer
Main scale graduation Outside measuring jaws Set screw -To hold the slider movement after a shift is made according to the size of the object. -Is a scale that is the main reference in reading the measurement results. -To measure the inner diameter of an object. Sleeve scale Rachet speeder Thimble scale -The instrument’s primary measuring scale. -The secondary measuring scale, the thimble scale, provides the two remaining significant figures of a measurement. -To increase the speed at which the spindle rotates, the space between the anvil and the spindle is reduced more quickly. VERNIER CALIPER VS MICROMETER DIFFERENCE IN MEASUREMENT Micrometers offer a measuring range of around 0" to 6" , whereas calipers offer a 0" to 2" range. Micrometers offer a measuring accuracy of up to 0.0004" while calipers have a comparatively lower accuracy of up to 0.0007". Inside Micrometer is used for measurement of inner diameter but in the case of the vernier caliper, it is checked by the internal jaw. 1. 2. 3. WHAT IS ZERO ERROR? Zero error happens due to a mechanical error. For the micrometer, zero error happens if the zero marks in the main scale and in the thimble scale don't coincide at the time when the anvil and the spindle touch each other. REFERENCES Byju's, A. (2018). Screw gauge - definition, working, Measurement & Errors. Screw Gauge - Measurements, Zero Error & Backlash Error - Physics - Aakash Byjus | AESL. Retrieved April 19, 2023, from https://www.aakash.ac.in/important-concepts/physics/screwgauge#:~:text=upon%20different%20errors.-,Zero%20Error%20in%20Screw%20Gauge,other%2C %20it%20has%20zero%20error. Seiki, N. (2022). LR Vernier Caliper. Misumi Malaysia: Industrial Configurable Components Supply. Retrieved April 19, 2023, from https://my.misumi-ec.com/vona2/detail/223000297601/ NURLIYANA SYASYA ATHIRAH BINTI RAMLAN S67977 NANOPHYSICS
MEASUREMENT AND INSTRUMENTATION NAME : SHARIFAH ZAHRAH ALSHAHAB BINTI SYED AHMAD SYAUKI MATRIC NUM : S67979 DIFFERENCES IN TERMS OF MEASUREMENT BETWEEN A VERNIER CALIPER AND A MICROMETER 1. Measurement range: Vernier calipers are used for measuring objects up to around 150mm in length, while micrometers are used for more precise measurements of objects up to around 25mm in length. 2. Resolution: Micrometers generally have a higher resolution than vernier calipers. A typical micrometer can measure to the nearest 0.01mm, while vernier calipers may only measure to the nearest 0.1mm. 3. Measuring faces: Vernier calipers have two sets of measuring faces - one set for external measurements and one set for internal measurements. Micrometers, on the other hand, have only one set of measuring faces and are typically used for external measurements only. refers to the condition where the measuring faces of the micrometer don ’t align perfectly when the jaws of the micrometer are closed without measuring any object. This misalignment can result in an incorrect measurement of an object when it’ s placed in the micrometer jaws. There are two types of zero errors: Positive zero error, where the reading is higher than the actual value; and negative zero error, where the reading is lower than the actual value. To obtain accurate measurements with a micrometer, it’ s important to take note of the zero error and ensure it’ s compensated for during the measurement process. ZERO ERROR OF MICROMETER THUMB SCREW The thumb screw is located at the bottom of the vernier scale. Its purpose is to provide a grip for the user to slide the jaws easily and adjust the position of the jaws and depth rod while maintaining a firm grip on the object. DEPTH ROD The depth rod is another feature of the vernier caliper which can be used to measure the depths of holes or steps. The depth rod is a thin rod located at the end of the main scale. To measure with the depth rod, the edge of the main scale is placed on the top surface of the hole and then the jaws are opened. As the jaws are opened, the depth rod slides out with the main scale. The depth rod is extended till it touches the bottom of the hole and the reading is taken as usual. VERNIER SCALE The Vernier scale is the defining component of the caliper and what gives it its name. The vernier caliper is a smaller scale attached to the main scale and can move along the main scale as the jaws are opened or closed. The vernier scale provides accuracy to the reading of the main scale by further dividing the lowest reading of the main scale into increments. In a metric caliper, the vernier scale is divided into 50 increments each representing 0.02 mm. FRAME The frame is the U or C-shaped part of a micrometer. It also represents the range of measurement. The larger the frame, the longer the range. Whereas, the smaller the frame, the shorter the range. It also provides support to the anvil and the spindle to secure the object. In addition, it’ s commonly coated with plastic material to prevent the user ’ s body heat moves to the micrometer. LOCK NUT You need to use this part to prevent the spindle from moving while taking the reading because any movement can cause inaccuracy. By turning it, you hold the object tightened. On the image provided, it’ s a nut lock type. You may notice another lock with a different look like a ring which you need to rotate to use it, but it functions the same. RATCHET Ratchet is a rotatable cylindrical part that you can see at the very end of the micrometer opposite. It functions in such a way so that the object is held with appropriate pressure. Your micrometer can be broken if the pressure is too tight, whereas the reading is not accurate if the pressure is too weak. It releases a click sound if the pressure you give reaches the appropriate force. https://www.fullyinstrumented.com/micrometer-body-parts/ https://vernierscaliper.com/vernier-caliper-functions-important-parts-784.html http://www.excelatphysics.com/micrometer-screw-gauge.html https://vivadifferences.com/difference-between-vernier-caliper-and-micrometer-screwgauge/ REFERENCES: 1. 2. 3. 4. MICROMETER VERNIER CALIPER
Upper Jaws - To measure inside measurement such as diameter of hole Thumb Screw - To precisely adjust the measuring faces of the caliper. Lock Screw - To secure the jaw 1. 2. 3. Ratchet - Avoid over tightening of micrometer across the measuring object Lock Nut - Act as stationary nut Sleeve - Indication of reading in millimeter 1. 2. 3. Micrometer is more accurate and precise than Vernier Caliper. Vernier caliper used to measure external diameters, internal diameters as well as depths while micrometer usually used to measure external diameters only. Accuracy of micrometer is 0.01 mm while vernier caliper is 0.1 mm. Difference Vernier Caliper VS Micrometer Zero error of micrometer: Zero on thimble and datum line on sleeve do not coincide when measuring faces are in contact By Jony Lim S65954 REFERENCE https://mytutorialwo rld.com/objectivequestions/single_qu estion_view.php? table_name=fitterset-1- measuring&uid=19 https://diffzi.com/ve rnier-caliper-vsmicrometer/ https://gaugehow.co m/2019/05/12/verni er-caliper-vsmicrometer-basicsof-vernier-caliperand-micrometer/
Measurement & Instrumentation QFZ3713 lock screw upper jaws lower jaws VS ratchet stop spindle frame THE LOCK SCREW IS USED TO FIX THE POSITION OF THE JAWS ONCE THE OBJECT IS POSITIONED PROPERLY SO THAT READINGS CAN BE TAKEN WITHOUT THE FEAR OF SPOILING THE POSITION. THE UPPER JAWS ARE USED FOR MEASURING INSIDE DIMENSIONS OF HOLLOW OBJECTS THE LOWER JAWS ALLOW THE VERNIER CALIPER TO MEASURE OUTER DIMENSIONS OF OBJECTS SUCH AS THE LENGTH, WIDTH OR DIAMETER. FUNCTIONS : LOCK SCREW UPPER JAWS LOWER JAWS FRAME FUNCTION IS TO PROVIDE BASIC STRUCTURE OF A MICROMETER IN WHICH STATIONARY ANVIL LOCATED AT ONE END AND MOVABLE SPINDLE SLIDES INWARD OR OUTWARD TROUGH OTHER END OF FRAME. RATCHET STOP FUNCTION IS TO AVOID OVER TIGHTENING OF MICROMETER ACROSS THE MEASURING OBJECT AND ALSO ENSURES EQUAL PRESSURE FORCE OF EACH MEASUREMENT. IT IS MOVEABLE PART AND HAS A CONNECTION WITH RATCHET AS WE ROTATE THE RATCHET CLOCKWISE OR COUNTER CLOCKWISE THE SPINDLE SLIDES OUT OR INWARD TO ADJUST IT WITH COMPARE TO MEASURING OBJECT SIZE. FUNCTIONS : FRAME RATCHET STOP SPINDLE vernier caliper MICROMETER differences between vernier caliper vs micrometer 1. Micrometer is more accurate and precise than Vernier caliper. 2. Measurement range of micrometer is 25 mm while vernier caliper has wide range. 3. Micrometer used for taking external measurement only while vernier caliper has special type of jaws that can take both internal and external measurements accurately. zero error of micrometer Zero error in micrometer occurs when zero mark on thimble scale coincides with datum line on the main scale Dinuka, Bongumenzi, Insha, Albert, Geraldine, & Avinash. (2016, December 1). Vernier caliper functions & important parts. Vernier Calipers. Retrieved April 15, 2023, from https://vernierscaliper.com/vernier-caliper-functions-important-parts-784.html Micrometer parts and their main function: Mechanical measuring. Mechanical Measuring | Mechanical and other Engineering Measuring tools and instruments. (2022, February 22). Retrieved April 15, 2023, from https://www.mechanicalmeasuring.com/micrometer-parts-main-function/ Viva. (2020, December 21). 10 difference between Vernier Caliper and micrometer screw gauge. Viva Differences. Retrieved April 15, 2023, from https://vivadifferences.com/difference-between-vernier-caliper-and-micrometer-screw-gauge/ 1. 2. 3. SITI NURUL RUQAIYYAH BT MOHD YUSOF S65972
VERNIER CALIPER QFZ3173MEASUREMENT AND INSTRUMENTATION CHEA YIEU SHEN S66554 UPPER JAW TO GRIP THE OBJECT FIRMLY AND TO MEASURE THE OUTER DIAMETER SUCH AS DIAMETER, WIDTH, AND LENGTH FUNCTIONS LOCK SCREW TO FIX THE POSITION OF THE JAWS ONCE THE OBJECT IS FIRMLY FIXED FUNCTIONS LOCKNUT TO HOLD THE SPINDLE STATIONARY SLEEVE PRIMARY MEASURING SCALE TO DISPLAY THE MEASUREMENT TAKEN RATCHET STOP TO LIMIT THE APPLIED PRESSURE BY SLIPPING AT CALLIBRATED TORQUE. RELEASES CLICK SOUND IF APPLIED APPROPIRATE PRESSURE. DIFFERENCES OF MEASUREMENT -MICROMETER PROVIDES HIGHER PRECISION THAN VERNIER CALIPER. -VERNIER CALIPER HAS A LARGER RANGE OF MEASUREMENT THAN MICROMETER. -VERNIER CALIPER CAN MEASURE A WIDE RANGE OF SHAPE WHILE MICROMETER MORE SUITED FOR ROUND AND CYLINDRICAL OBJECT TO MEASURE INSIDE DIMENISION OF HOLLOW OBJECTS SUCH AS INTERNAL DIAMETER OF PIPES LOWER JAW MICROMETER SCREW GAUGE WHATIS ZERO ERROR OF MICROMETER? -OCCURS WHEN THE THIMBLE AND THE SPINDLE OF THE MICROMETER DO NOT ALIGN AT ZERO ON THE MAIN SCALE WHEN THERE IS NO OBJECT BEING MEASURED Your paragraph text -Screw Gauge - Measurements, Zero Error & Backlash Error - Physics - Aakash Byjus | AESL. (n.d.). https://www.aakash.ac.in/important-concepts/physics/screwgauge#:~:text=upon%20different%20errors.-,Zero%20Error%20in%20Screw%20Gauge,other%2C%20it%20has%20zero%20error. -Mishra, S. a. O. . B. B. M. S. a. O., . B. B., & Tjprc. (2019b). A Review on Vernier Calliper. International Journal of Mechanical and Production Engineering Research and Development. https://doi.org/10.24247/ijmperdjun2019178 -Wonkee Donkee Tools. (2021b, August 10). What are the parts of a micrometer? - Wonkee Donkee Tools. https://www.wonkeedonkeetools.co.uk/micrometers/what-are-theparts-of-a-micrometer
SLEEVE BARREL CYLINDRICAL THAT IS MOUNTED ON THE SPINDLE AND IS THE MAIN SCALE ON MICROMETER (ENGRAVED ON THE SLEEVE) INDICATIONOF READING IN MILIMETER IN CASE OF EMPERICAL MICROMETER ZERO ERROR OF MICROMETER SCREW GAUGE WHEN THE PLANE SURFACE OF THE SCREW AND THE OPPOSITE PLANE STUD ON THE FRAME ARE BROUGHT INTO CINTACT, IF ZERO OF THE HEAD SCALE COINCIDES WITH THE PITCH SCALE AXIS, THERE IS NO ZERO ERROR GOH XIN YUEN LOWER AND UPPER JAWS ONE JAW IS FIXED AND THE OTHER IS MOVABLE LOWER: MEASURE DIMENSION SUCH AS LENGTH, WIDTH, DIAMETER UPPER: MEASUREINSIDE HOLLOW DIMENSION SUCH AS DIAMETER MAIN SCALE GRADUATED IN cm AND mm OR in DEPENDING ON GHE TYPE OF UNIT THAT IS BUILT FOR SCALE IS STATIONARY SMALLEST GRADUATION IS 1MM THUMB SCREW PROVIDE GRIP FOR USER TO SLIDE THE JAWS EASILY AND ADJUST THE POSITION OF THE JAWS AND EDEPTH ROD WHILE MAINTAINING A FIRM GRIP ON THE OBJECT THIMBLE MOUNTED TO THE SPINDLE AND A SCALE IS ENGRAVED AROUND ITS PERIMETER OF THIMBLE SCALE OF THIMBLE SHOW THE MEASUERMENT VALUE IN FRACTION SPINDLE MOUNTED SLEEVE, LOCK NUT, THIMBLE MOVEABLE PART AND HAS CONNECTION WITH RACHET AS ROTATED CLOCKWISE OR COUNTER CLOCKWISE, THE SPINDLE SLIDES OUT OR INWARD TO ADJUST IT WITH THE COMPARE TO MEASURING OBJECT REFERENCE Micrometer screw gauge | formula, definition, diagrams - TOPPR. (n.d.). Retrieved April 18, 2023, from https://www.toppr.com/ask/enus/content/concept/measuring-length-using-screwgauge-208200/ Micrometer parts and their main function: Mechanical measuring. Mechanical Measuring | Mechanical and other Engineering Measuring tools and instruments. (2022, February 22). Retrieved April 18, 2023, from https://www.mechanicalmeasuring.com/micrometerparts-main-function/ Dinuka, Bongumenzi, Insha, Albert, Geraldine, & Avinash. (2016, December 1). Vernier caliper functions & important parts. Vernier Calipers. Retrieved April 17, 2023, from https://vernierscaliper.com/verniercaliper-functions-important-parts-784.html GOH XIN YUEN S66735
BASIS OF COMPARISON VERNIER CALIPER MICROMETER LEAST COUNT The least count of the Vernier calipers ranges from 0.1 mm to 0.02 mm. The least count of micrometers ranges from 0.01 mm to 0.0001 mm. SCOPE OF MEASUREMENT It has special type of jaws that can take both internal and external measurements accurately. It is used for taking external measurements only as it does not have appropriate structure for taking the inner measurements of the object. SCALE Have a sliding scale within which measurements are taken. Have a rotating scale within which measurements are taken. QFZ3713 ASSIGNMENT 1 VERNIER CALIPER MICROMETER SCREW GAUGE Byju's. (n.d.). Vernier Caliper Functioning and Uses. Retrieved from https://www.google.com/search? q=parts+and+function+of+vernier+calipers&rlz=1C1GCEJ_enMY967MY967&oq=parts+and+function+of+vernier+calipers&aqs=chrome. .69i57.8447j0j7&sourceid=chrome&ie=UTF-8 Byju's. (n.d.). Micrometer. Retrieved from https://byjus.com/physics/micrometer/#:~:text=Anvil%20%E2%80%93%20The%20shiny%20part%20the,to%20hold%20the%20spind le%20stationary. VivaDifferences. (n.d). 10 Difference Between Vernier Caliper And Micrometer Screw Gauge. Retrieved from https://vivadifferences.com/difference-between-vernier-caliper-and-micrometer-screw-gauge/ REFERENCES: INTERNAL JAW - Used to measure the internal diameter of items. EXTERNAL JAW - Used to measure the external diameter of the items. DEPTH MEASURING BLADE - Used to measure the depth of an object. LOCKING SCREW - The screw is there to keep the device stable when not in use. As all screws do, turning it clockwise will loosen it and anticlockwise will tighten it. PARTS AND THEIR FUNCTIONS DIFFERENCES ZERO ERROR ANVIL - The shiny part the spindle moves toward and the sample rests against. SPINDLE - Shiny cylindrical component that causes the thimble to move toward the anvil. RATCHET - The device on the end of the handle that limits applied pressure by slipping at a calibrated torque. THIMBLE SCALE - Indication of reading in millimeter in case of imperial micrometer. S65585 - NURUL MADIHAH BT MOHD HUSNI Occurs when zero on the thimble and datum line on sleeve do not coincide when measuring faces are in contact. MICROMETER Occurs when a zero on the main scale does not coincide with a zero on Vernier scale VERNIER CALIPER
VERNIERCALIPER VS MICROMETER NUR ADAM ZIKRY BIN NUR MIZHUARI S65309 Verniercaliper Micrometer VernierCaliper Grip the object between them measure the depth of hole or step provide the grip for the user to slide the jaw easily Lower Jaw Depth Rod Thumb screw If the zero marks in the main scale and in the thimble scale don't coincide at the time when the anvil and the spindle touch each other provide basic structure of micrometer holding point for measuring object main scale of micrometer C-frame Anvil Sleeve uses two sliding scales with different spacings between markings on each scale allow a user to measure external diameters, internal diameters as well as depths. have a precision of 0.1 or 0.05 mm. makes use of a screw to translate small distances moved by its jaws to larger distances along the marked scale. allow users to measure external diameters have a precision of 0.01 mm. Micrometer ZeroErrorformicrometer Micrometer Parts and Their Main Function | Mechanical Measuring. (2017, September 21). Mechanical Measuring | Mechanical and Other Engineering Measuring Tools and Instruments. https://www.mechanicalmeasuring.com/micrometer-parts-mainfunction/ Markovics, S. (2016, December 1). Vernier Caliper Functions & Important Parts - Vernier Calipers. Vernier Calipers. https://vernierscaliper.com/vernier-caliper-functions-important-parts-784.html Micrometer Screw Gauge. (n.d.). Excel@Physics. http://www.excelatphysics.com/micrometer-screw-gauge.html