linear and angular measuremnts
- 1. Linear Measurements Subject: MMM Semester: 4th Division: FX Branch: Mechanical Prepared By: 1. Vivek Aghara (140030119001) 2. Akash Ambaliya (140030119003) Atmiya Institute of Technology & Science Gujarat Technological University
- 2. LINEAR MEASUREMENT • The term linear measurement is applied to the measurement of length , diameter , thickness , internal and external dimensions. • There’re 2 types of it.. Direct Indirect
- 3. List of Linear Measurement Instruments • Architect's scale • Calliper • Engineer's scale • Feeler gauge, used in metal working to measure size of gaps • Gauge blocks • Gunter's chain • Micrometre • Opisometer or curvimeter • Pacing (surveying)
- 4. List of Linear Measurement Instruments • Measuring rod • Ruler • Stadimeter • Surveyor's wheel • Tape measure • Yard stick • Meter stick • Screw Gauge
- 5. STEEL RULE • It is a line measuring instruments. • It is made form hardened stainless steel. • They are available in 150,300,600.1000 mm. • Least count is 0.5 mm.
- 6. VERNIER CALIPER • Suitable to measure diameter of circular parts. • Accuracy is 0.02 mm. • It is made from alloy steel. • Consist main scale, vernier scale , depth bar ,internal and external measuring jaws.
- 7. VERNIER HEIGHT GAUGE • Used to measure the height, and scribing lines on components. • Principle is similar to vernier caliper. • Least count is 0.02.
- 8. VERNIER DEPTH GAUGE • Used to measure the depth of holes ,slots etc. • Principle is similar to vernier caliper. • Least count is 0.02.
- 9. MICROMETER • Its accuracy is 0.01. • For each revolution of thimble the spindle advances a distance equal to the pitch. • Different types are outside , inside , screw thread, depth gauge.
- 10. POTENTIO METER • It is an electromechanical device. • Consist of a variable resistive element , slider and circuitry. • Movement of the slider over the resistive element causes the change in resistance.
- 15. DEPTH MICROMETER
- 16. BENCH MICROMETER
- 19. DIAL BORE GAUGE
- 20. Thank You…