Ultrasonic instrumentation for examination of variable-thickness

Details Ultrasonic instrumentation for examination of variable-thickness Ultrasonic instrumentation for examination of variable-thickness

1985-12-31

1989-01-17

Lall, Parshotam S.

Boots, shoes, and leggings

364552, 73625, 73628, G01N 2900

Patent

active

047991771

ABSTRACT:
Ultrasonic apparatus and methods for detecting defects in a part include a plurality of transducer channels, at least one of which is dedicated to determining the thickness of the part. An initial thickness value is determined and stored, and then subsequent thickness estimates are compared to the original thickness value and, if the estimates bear a predetermined relationship with the stored thickness value, then the thickness estimates become the new thickness values.

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