Audible bond tester

Details Audible bond tester Audible bond tester

1977-06-24

1978-09-05

Myracle, Jerry W.

Measuring and testing

Vibration

By mechanical waves

73609, G01N 2900

Patent

active

041110536

ABSTRACT:
A system for inspection of adhesively bonded structures utilizing a piezoelectric transmitting transducer for transmitting a fixed frequency tone burst, e.g., 25 KHz, at a predetermined repetition rate, e.g., 100 Hz, into a part being tested and including a piezoelectric receiving transducer also coupled to the part for providing in a receiver circuit an audible output which permits the operator to distinguish amplitude variations of the 100 Hz repetition rate signal representative of the presence of an unbonded area.

REFERENCES:
patent: 2846874 (1958-08-01), Horn
patent: 3504532 (1970-04-01), Muenow et al.
patent: 3813926 (1974-06-01), Stubbeman
patent: 3930404 (1976-01-01), Ryden, Jr.
patent: 4008602 (1977-02-01), Love

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