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The Book of Terms

Ultrasonic Gauge

A non-destructible test instrument using the principle of ultrasonic resonance to establish the thickness of metals and plastics. Mechanical vibrations are sent into the material under test, and the resonant frequency returning from the sample appears as two or more vertical traces on a cathode ray tube. It can be used for quality control in the production of such items as lead-sheathed cable.

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Madison, CT 06443-2662

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