This study guide has been designed to allow you to learn the basics of precision measuring, the instruments used and the methods of using and reading them.
Complete Precision Measuring Instruments Study Guide – 153 Pages
Exercises and Tests – 77 Pages
PMI 1 – An Overview of Micro-measuring
At the end of this module you will be able to:
- State the importance of careful measuring.
- State the need for careful measuring.
- Describe the standard method of expressing dimensions.
PMI 2 – Using & Reading Outside Micrometers
At the end of this module you will be able to:
- Name the parts and functions of typical micrometers.
- Demonstrate the methods of holding and “feeling”.
- Describe principles of reading the Main Scale.
- Describe principles of reading the Thimble Scale.
- Obtain an overall or combined reading.
- Demonstrate the principles of maintaining Micrometers.
PMI 3 – Using & Reading Outside Micrometers over 25mm
At the end of this module you will be able to:
- Identify fixed types of Micrometers up to 100 mm.
- Describe the ranges of reading with fixed types.
- Check accuracy using a settling gauge.
- Identify contents of adjustable micrometer kits.
- Describe adjusting standards.
- Use and read adjustable type micrometers.
PMI 4 – Using & Reading inside Micrometers
At the end of this module the learner will be able to:
- Describe typical applications.
- Name the micrometer parts and functions.
- Describe measuring ranges.
- Demonstrate techniques of usage.
- Check accuracy.
- Read the instrument.
PMI 5 – Using & Reading Micrometer Depth Gauge
At the end of this module you will be able to:
- Describe typical applications.
- Name the parts and functions of a typical depth micrometer.
- Change extension rods.
- Demonstrate handling / using techniques.
- Read the instrument.
PMI 6 – Using & Reading Vernier Callipers
At the end of this module you will be able to:
- Describe typical functions.
- Name the parts and functions of a typical Vernier calliper.
- Describe handling methods.
- Gauge external, internal and depth reading.
- Read the instrument.
PMI 7 – Using & Reading Dial Gauge Callipers
At the end of this module you will be able to:
- Describe the typical functions.
- Name the parts and functions of a typical dial gauge calliper.
- Describe handling methods.
- Gauge external, internal and depth reading.
- Read the instrument.
PMI 8 – Using & Reading a “Dial Test Indicator” or DTI.
At the end of this module you will be able to:
- Describe parts and functions of a typical Dial Test Indicator.
- Read a typical Dial Test Indicator (for example, 10 mm range, calibrated scale 0,01 mm).
- Set up a magnetic base / Dial Test Indicator support.
- Use a Dial Test Indicator to establish lateral run-out to within 0,01 mm on a gear / sprocket facing.