Time-variable bandwidth ultrasonic testing apparatus

Details Time-variable bandwidth ultrasonic testing apparatus Time-variable bandwidth ultrasonic testing apparatus

1977-09-22

1979-06-19

Kreitman, Stephen A.

Measuring and testing

Vibration

By mechanical waves

73629, G01N 2904

Patent

active

041583086

ABSTRACT:
An ultrasonic nondestructive testing system of the pulse-echo type is disclosed including an echo-signal-translator exhibiting a bandwidth that is varied to achieve excellent near-surface resolution while affording deep inspection of an object under test.

REFERENCES:
patent: 3309914 (1967-03-01), Weighart
patent: 3367173 (1968-02-01), Uphoff
patent: 3924454 (1975-12-01), McElroy et al.
patent: 4016750 (1977-04-01), Green
R. Goldman, Ultrasonic Technology, Reinhold Publ. Co., N.Y., 1962, pp. 181-185.

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