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Precision Measurement Tools

Precision Measurement Tools. Dial Caliper Steel Rule Micrometer. Dial Caliper. A dial caliper is a precision measuring device that can measure in thousandths of an inch. The dial caliper functions as an: Outside caliper Inside caliper Depth gauge. Outside caliper.

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Precision Measurement Tools

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  1. Precision Measurement Tools • Dial Caliper • Steel Rule • Micrometer

  2. Dial Caliper • A dial caliper is a precision measuring device that can measure in thousandths of an inch. The dial caliper functions as an: • Outside caliper • Inside caliper • Depth gauge

  3. Outside caliper Using the dial caliper as an outside caliper

  4. Using the dial caliper as an outside caliper

  5. Inside caliper Using the dial caliper as an inside caliper

  6. Using the dial caliper as an inside caliper

  7. Depth gauge Using the dial caliper as a depth gauge

  8. Using the dial caliper as a depth gauge

  9. Resetting the dial caliper to zero Step 1 Step 2 Gently turn the glass dial until the indicator reads zero. Begin by gently closing the calipers. Do not over tighten! Close the jaws until they are touching. Note the indicator is not on zero

  10. Measuring with a dial caliper What is the reading on the dial caliper at the left? ?

  11. Measuring with a dial caliper 1.000 One inch

  12. Measuring with a dial caliper 1.000 .300 One inch three hundred

  13. Measuring with a dial caliper 1.000 .300 + .050 1.350 One inch three hundred fifty thousands

  14. Measuring with a dial caliper 1.000 One inch

  15. Measuring with a dial caliper 1.000 .800 One inch eight hundred

  16. Measuring with a dial caliper 1.000 .800 + .075 1.875 One inch eight hundred seventy five thousands

  17. What is the reading on this caliper? Nine hundred and ninety thousands

  18. What is the reading on this caliper? Two inch two hundred and sixty thousands

  19. What is the reading on this caliper? Four inch one hundred twenty five thousands

  20. Micrometer The thimble consists of a graduated scale that reads from 0-9. There are four marks between each number. Each mark signifies .025 (twenty five thousands).

  21. The sleeve has a graduated scale that runs from 0-20 with 10 marks in between. Micrometer - sleeve

  22. The micrometer reads .100 of an inch. Reading the Micrometer There are four marks on the thimble. 4*.025 = .100 There are zero marks on the sleeve.

  23. Reading the Micrometer There are two numbers on the thimble: .200 There are almost three lines after the last whole number: 2*.025 = .050 The sleeve reads 21. .271 or two hundred seventy one thousands

  24. Steel rules

  25. Steel Rules The top rule measures in fractional values. The bottom rule measures in decimal values.

  26. Complete the precision measurement worksheet

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