Hand-held digital thickness gage

Details Hand-held digital thickness gage Hand-held digital thickness gage

1982-12-17

1987-12-22

Krass, Errol A.

Boots, shoes, and leggings

73 1J, 73597, 73629, G01B 1702

Patent

active

047150084

ABSTRACT:
A microprocessor-controlled, hand-held, digital ultrasonic thickness gage having automatic zero calibration, scroll velocity adjustment and an electronic locking feature to prevent inadvertent calibration or velocity data variations. This invention is used with a dual-element transducer and, in that regard, employs a microprocessor program which automatically corrects for the well-known, inherent thickness gaging inaccuracies (nonlinearities) always caused by the use of the otherwise advantageous (high sensitivity) dual element transducer.

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