Method and apparatus for nondestructive ultrasonic measuring of

Details Method and apparatus for nondestructive ultrasonic measuring of Method and apparatus for nondestructive ultrasonic measuring of

1977-02-03

1978-11-07

Gill, James J.

Measuring and testing

Vibration

By mechanical waves

73597, G01N 2900

Patent

active

041239431

ABSTRACT:
An ultrasonic measuring technique and apparatus are disclosed. The method and apparatus are intended to measure wall thickness of bodies such as internal combustion engine cylinder walls prior to machining thereof. The body is immersed in a coupling fluid. An ultrasonic signal is generated within the cylinder bore and signal reflections from the inner and outer wall surfaces are sensed. High frequency pulses are counted between the occurrence of a pulse and receipt of the first and second reflected pulses. The count is adjusted for differences in the velocity of sound in the different media.

REFERENCES:
patent: 3636778 (1972-01-01), Huffstetler
patent: 3808879 (1974-05-01), Rogers
patent: 3828609 (1974-08-01), Furon et al.
patent: 3896662 (1975-07-01), Camp et al.
patent: 3930404 (1976-01-01), Ryden
patent: 4008603 (1977-02-01), Paulissen

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