Adaptive scanning technique for ultrasonic testing utilizing rea

Details Adaptive scanning technique for ultrasonic testing utilizing rea Adaptive scanning technique for ultrasonic testing utilizing rea

1993-03-16

1996-04-16

Williams, Hezron E.

Measuring and testing

Vibration

By mechanical waves

73627, 73634, G01N 2926

Patent

active

055071856

ABSTRACT:
An adaptive scanning technique for ultrasonic testing of materials utilizing a realtime lift off detection system. The technique recognizes characteristic reflected/generated signals of partial and total lift off occurrences, wherein the ultrasonic transducer is separated from the surface of the test material. Once recognized and analyzed, these characteristic reflected signals are correlated with parameter changes preselected to compensate for such partial or total lift off occurrences. These parameter changes are communicated to a mechanical positioning system that alters the position, scanning speed, and vertical force with which mechanical compliance of the transducer is maintained with the test material.

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patent: 4689995 (1987-09-01), Turbe
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