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Understanding Calipers: Types, Usage, and Accuracy Measurement

Learn about different caliper types and how to measure linear dimensions accurately. Explore vernier, digital, dial, and other calipers, their parts, and readings. Conduct experiments to determine error percentage and accuracy rates for each caliper.

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Understanding Calipers: Types, Usage, and Accuracy Measurement

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  1. Exp # 1Calipers Eng. Reem Mohanna

  2. OBJECTIVES • To be acquainting with different tools that may be used to obtain small-scale linear measurements (length, depth, diameter, thickness, etc.) • To become familiar with vernier calipers.

  3. Calipers • Caliper is an instrument with two legs used for measuring linear dimensions. • Calipers may be fixed, adjustable, or movable.

  4. Caliper Parts

  5. Types of Calipers • Inside caliper • Outside caliper • Divider caliper • Odd leg caliper • Vernier Caliper • Digital Caliper • Dial Caliper • Depth caliper

  6. Inside caliper

  7. Outside caliper

  8. Divider caliper

  9. Odd leg caliper

  10. Vernier Caliper

  11. Digital Caliper

  12. Dial caliper

  13. Depth caliper

  14. Vernier Caliper Reading

  15. Digital Caliper Reading

  16. Dial Caliper Reading 5 mm + 0.11 mm = 5.11mm

  17. Basic Statistics Average Standard Deviation DOE Lecture 1

  18. Results

  19. Results cont.

  20. Questions • Describe the procedure of the experiment. • Determine class average and standard deviation for the caliper measurements. • What is the percentage of error and accuracy of each caliper? • Based on these dose one of the instruments consistently provide more repeatable results? • What are the sources of error in the dimensional measurement with caliper?

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