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2. USING MEASURING INSTRUMENTS PROPERLY

2. USING MEASURING INSTRUMENTS PROPERLY. Faces for inside measurements. Sliding jaw. Depth bar. Scale. Lockscrew. Caliper jaw. Finger rest. Depth reference plane. Vernier scale. Caliper scale. Sliding jaw. Faces for outside measurements. 1 VERNIER CALIPERS.

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2. USING MEASURING INSTRUMENTS PROPERLY

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  1. 2. USING MEASURING INSTRUMENTS PROPERLY Faces for inside measurements Sliding jaw Depth bar Scale Lockscrew Caliper jaw Finger rest Depth reference plane Vernier scale Caliper scale Sliding jaw Faces for outside measurements 1 VERNIER CALIPERS

  2. 2. USING MEASURING INSTRUMENTS PROPERLY 1) Checking the instrument (1) Confirm that the lockscrew is loose. (2) Wipe the measuring faces and sliding faces. (3) There is not a gap between the measuring faces. (4) The zero points on the scales line up. Gap Zero points

  3. 2. USING MEASURING INSTRUMENTS PROPERLY 2) Measuring an object Big object Small object Measuring Depth Inside measurement

  4. 2. USING MEASURING INSTRUMENTS PROPERLY 3 4 5 6 0 2 4 6 8 10 3) Reading the scale Main scale Secondary scale 36mm The 8 graduation 36mm + 0.40mm = 36.40mm

  5. 2. USING MEASURING INSTRUMENTS PROPERLY 2 MICROMETER Anvil Spindle Sleeve Ratchet stop Clamp Thimble Frame

  6. 2. USING MEASURING INSTRUMENTS PROPERLY 1) Checking the instrument (1) Confirm that the clamp is loose. (2) Wipe the entire instrument. (3) Turn the ratchet stop and check the spindle rotation. (4) Check the zero point. (5) Adjust the zero point. Zero point

  7. 2. USING MEASURING INSTRUMENTS PROPERLY 2) Measuring an object Ratchet stop Use a micrometer stand to avoid the effects of heat transferred from your hand.

  8. 2. USING MEASURING INSTRUMENTS PROPERLY 0 75 80 45 40 3) Reading the scale Main scale Secondary scale (Thimble) 81.0mm + 0.45mm =8.45mm

  9. 2. USING MEASURING INSTRUMENTS PROPERLY 3 DIAL GAUGE

  10. 2. USING MEASURING INSTRUMENTS PROPERLY 1mm 0.01mm 1) Check/Measurement

  11. 2. USING MEASURING INSTRUMENTS PROPERLY Measuring deflection

  12. 2. USING MEASURING INSTRUMENTS PROPERLY 4 CYLINDER GAUGE

  13. 2. USING MEASURING INSTRUMENTS PROPERLY 1) Measurement Wear Amount

  14. 2. USING MEASURING INSTRUMENTS PROPERLY Clearance Difference = Clearance Piston diameter

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