BASIC DIMENSIONAL METROLOGY
(3
Day Seminar - Outline)
Brief History of Dimensional Measurements
State of the Metric
Dimensional Standards
Significant Digits
Powers of Ten and Prefixes
Scientific Notation
Rounding Numbers
Using the Calculator
Conversion from English to Metric
Measurement Terms (Accuracy, Precision, Resolution, Range, Span)
Coarse Measuring Devices (Tapes, Rules, Roll
Counters, Glass
Rules, Pi Tapes,
Dividers,
Scales)
Precision Measuring Devices (Vernier Calipers,
Micrometers,
Dial Indicators, Gage
Blocks, Electronic Comparators)
Datum Planes Characteristics
Flatness, Perpendicularity,
Stiffness, Hardness, Thermal Stability
Surface Plates
Measurements of Plane Characteristics (Auto-collimator and Laser Interferometer)
Evolution of Gage Blocks
Gage Block Specifications
Gage Block Sets
Combining and Wringing Gage Blocks
Storage and Calibration
Vernier Scales
Using Vernier Calipers
Using Depth Gages
Using Dial Calipers
Using Height Gages
Principles Of Operation
Types of Micrometers
Calibration
Measurement Principles
Reading Dial Indicators
Stands and Surface Plate Reference
Comparison with Gage Blocks
MEASUREMENT BY COMPARISON – ELECTRONIC
COMPARATORS
Measurement Principles
Comparator Calibration
Introduction to Threads
Terms and Theory
Manufacturing Methods
Thread Gages
Measurement Over Wires
Optical Comparator
Introduction to Angles
Trigonometry
Measuring Instruments
Protractors
Squares
V Blocks
Sine Bars
Sine Blocks and Plates
Rotary Tables
Light Waves as Standards
Waves and Rays
Geometric Optics
Types of Lenses
Microscopes
Optical Comparators
Optical Flats
Laser Interferometer
Principle of Operation
GD&T Introduction
Different Styles
Measuring Tips