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Page 1 TecH Lad Linear and Angular Linear and Angular Measurement Measurement ? The Linear Measurement includes measurements of length, diameters, heights and thickness ? The Angular measurement includes the measurement of angles or tapers Page 2 TecH Lad Linear and Angular Linear and Angular Measurement Measurement ? The Linear Measurement includes measurements of length, diameters, heights and thickness ? The Angular measurement includes the measurement of angles or tapers TecH Lad Dimensions Dimensions ? A very common measurement is that of dimensions, i.e., length, width, height of an object ? Dimensions of the measuring instruments are classified as follows ? Low resolution devices (up to 0.25mm) ? Medium resolution devices (up to 0.025mm) ? High resolution devices (less than microns) Page 3 TecH Lad Linear and Angular Linear and Angular Measurement Measurement ? The Linear Measurement includes measurements of length, diameters, heights and thickness ? The Angular measurement includes the measurement of angles or tapers TecH Lad Dimensions Dimensions ? A very common measurement is that of dimensions, i.e., length, width, height of an object ? Dimensions of the measuring instruments are classified as follows ? Low resolution devices (up to 0.25mm) ? Medium resolution devices (up to 0.025mm) ? High resolution devices (less than microns) TecH Lad Low resolution devices Low resolution devices ? Steel rule ? Steel rule with assistance of ? Calipers ? Dividers & ? Surface gauges ? Thickness gauges Page 4 TecH Lad Linear and Angular Linear and Angular Measurement Measurement ? The Linear Measurement includes measurements of length, diameters, heights and thickness ? The Angular measurement includes the measurement of angles or tapers TecH Lad Dimensions Dimensions ? A very common measurement is that of dimensions, i.e., length, width, height of an object ? Dimensions of the measuring instruments are classified as follows ? Low resolution devices (up to 0.25mm) ? Medium resolution devices (up to 0.025mm) ? High resolution devices (less than microns) TecH Lad Low resolution devices Low resolution devices ? Steel rule ? Steel rule with assistance of ? Calipers ? Dividers & ? Surface gauges ? Thickness gauges TecH Lad T Medium resolution devices Medium resolution devices ? Micrometer ? Micrometer with assistance of ? Telescoping ? Extendable ball gauges ? Vernier calipers ? Dial indicators ? Microscope Page 5 TecH Lad Linear and Angular Linear and Angular Measurement Measurement ? The Linear Measurement includes measurements of length, diameters, heights and thickness ? The Angular measurement includes the measurement of angles or tapers TecH Lad Dimensions Dimensions ? A very common measurement is that of dimensions, i.e., length, width, height of an object ? Dimensions of the measuring instruments are classified as follows ? Low resolution devices (up to 0.25mm) ? Medium resolution devices (up to 0.025mm) ? High resolution devices (less than microns) TecH Lad Low resolution devices Low resolution devices ? Steel rule ? Steel rule with assistance of ? Calipers ? Dividers & ? Surface gauges ? Thickness gauges TecH Lad T Medium resolution devices Medium resolution devices ? Micrometer ? Micrometer with assistance of ? Telescoping ? Extendable ball gauges ? Vernier calipers ? Dial indicators ? Microscope TecH Lad High resolution devices High resolution devices ? Gauge blocks ? Gauge block with assistance of ? Mechanical comparator ? Electronic comparator ? Pneumatic comparator ? Optical flatsRead More
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FAQs on PPT: Measuring & Gauging Instruments - Manufacturing Engineering - Mechanical Engineering
| 1. What are some commonly used measuring instruments in mechanical engineering? |  |
Ans. Some commonly used measuring instruments in mechanical engineering include micrometers, calipers, dial indicators, height gauges, and coordinate measuring machines (CMMs). These instruments are used to measure dimensions, distances, angles, and other physical properties of mechanical components.
| 2. How does a micrometer work and what is it used for in mechanical engineering? | |
Ans. A micrometer is a precision measuring instrument used to measure small distances or dimensions with high accuracy. It consists of a calibrated screw mechanism and a measuring scale. When the screw is rotated, it moves a spindle towards or away from an anvil, allowing precise measurements to be taken. Micrometers are commonly used in mechanical engineering for measuring the thickness of materials, the diameter of shafts, and the clearance between parts.
| 3. What is the purpose of a dial indicator in mechanical engineering? | |
Ans. A dial indicator, also known as a dial gauge or a probe indicator, is used in mechanical engineering to measure small linear distances or displacements. It consists of a needle-like probe connected to a dial that displays the measurement. Dial indicators are often used to check the alignment of machine parts, measure the runout of rotating components, and ensure the accuracy of machining operations.
| 4. How does a coordinate measuring machine (CMM) work and what are its applications in mechanical engineering? | |
Ans. A coordinate measuring machine (CMM) is a sophisticated measuring instrument used in mechanical engineering to determine the geometrical characteristics of objects. It works by moving a probe along predefined paths and recording the coordinates of its position. These coordinates are then used to generate a 3D model or analyze the dimensional accuracy of the measured object. CMMs find applications in quality control, reverse engineering, and dimensional inspection of complex components.
| 5. What is the significance of calibration in measuring and gauging instruments in mechanical engineering? | |
Ans. Calibration is the process of comparing the measurement values obtained from a measuring or gauging instrument against a known standard to ensure accuracy. In mechanical engineering, calibration is crucial to maintain the reliability and traceability of measurements. It helps identify and correct any deviations or errors in the instruments, ensuring that they provide accurate and consistent results. Regular calibration of instruments is necessary to meet quality standards, minimize measurement uncertainties, and ensure the integrity of engineering processes.
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