Course outline
Unit 1: Gage Primer
- Lesson 1: Why measure?
Explains critical aspects of measuring.
- Lesson 2: Language of measurement
Key terms used in dimensional metrology.
- Lesson 3: Measurement standards
Includes the types of standards related to dimensional metrology.
- Lesson 4: Precision & accuracy
Includes the five components of any measurement system and how variation can lead to measurement error.
- Lesson 5: Datums
How measurements are referenced by design and manufacturing engineers on drawings.
- Lesson 6: Introduction to GD&T
Compares coordinate tolerancing with geometric dimensioning and tolerancing (GD&T). Includes how to read drawing symbols.
- Lesson 7: Surface finishes
Provides an overview of measurements used to characterize the finish of a surface.
- Lesson 8: Math for measuring
Reviews simple mathematical concepts.
Unit 2: Using Gages
- Lesson 1: Types of gages
Includes universal dimensional measurement techniques and gages,
- Lesson 2: Calipers
How to use and read vernier scales and calipers. Also the pros and cons of vernier scale, dial, and digital calipers.
- Lesson 3: Micrometers
Teaches the difference between micrometer size and range, how to read scales, and using inside and outside micrometers.
- Lesson 4: Height and depth gages
How to use height gages and depth gages. Includes how gage blocks and height masters are used with height gages and explores potential problems.
- Lesson 5: Fixed gages
Explores different types of fixed limit and Go/No Go gages. Looks at the pros and cons of fixed and variable gages. Offers hints for using fixed gages.
- Lesson 6: Test indicators and dial indicators
Explains the differences between test indicators and dial indicators. Looks at how to use and potential problems.
- Lesson 7: Gage blocks and surface plates
Includes grades of gage blocks and surface plates, the uses of gage blocks and surface plates, and how to wring gage blocks.
Unit 3: Gaging Applications
- Lesson 1: Application overview
Provides an overview of the lessons in this unit.
- Lesson 2: Linear measurements
Explores which linear gage should be used for a wide spectrum of specific measuring applications.
- Lesson 3: Roundness and circularity
Teaches how to take out-of-roundness measurements, how to gage the effective diameter, and how to measure cylindricity.
- Lesson 4: Common misapplications
Looks at common measuring mistakes. Includes preventative measures.
- Lesson 5: Measuring complications
Looks at ten problems that can lead to measuring complications.
- Lesson 6: Care of gages
Discusses care for gages and instruments.