This film explains the principles of measurement with light waves, the nature of light waves; the reflection and refraction of monochromatic light by a glass surface; the use of these bands in ultra-precision measurement; and their translation into millionths of an inch. The film then goes on to demonstrate the procedures in gauge block inspection, the comparison of gauge blocks for height; the meaning of circular and parallel bands on gauge surfaces; the precautions necessary in measurement with light waves; and the inspection procedures followed.
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How to watch
Collection
In ACMI's collection
Credits
Collection metadata
ACMI Identifier
006863
Language
English
Subject categories
Educational & Instructional → Instructional
Mathematics, Science & Technology → Light - Speed
Sound/audio
Sound
Colour
Black and White
Holdings
16mm film; Access Print (Section 1)