Non-destructive test apparatus and method for a material having

Details Non-destructive test apparatus and method for a material having Non-destructive test apparatus and method for a material having

1973-12-03

1976-06-01

Myracle, Jerry W.

Measuring and testing

Liquid analysis or analysis of the suspension of solids in a...

Content or effect of a constituent of a liquid mixture

73 715US, G01N 2904

Patent

active

039600068

ABSTRACT:
In order to detect flaws in a material having a cavity, such as a turbine rotor with a central bore, a test apparatus utilizing ultrasonic signals or waves in longitudinal, shear and surface modes, or various combinations thereof, is provided. A source of ultrasonic waves is appropriately mounted for both circumferential and axial sweeps of at least a portion of the bore. Appropriate indexing arrangements are provided to accurately determine the axial and circumferential positions of the source, and hence of any detected flaws.

REFERENCES:
patent: 3021706 (1962-02-01), Cook et al.
patent: 3272000 (1966-09-01), Stebbins
patent: 3455150 (1969-07-01), Wood
patent: 3470868 (1969-10-01), Krause et al.
patent: 3508436 (1970-04-01), Krautkramer
patent: 3600613 (1971-08-01), Clarke
patent: 3732946 (1973-05-01), McKnight
patent: 3780571 (1973-12-01), Wiesener

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