Ultrasonic test apparatus for tubes and rods

Details Ultrasonic test apparatus for tubes and rods Ultrasonic test apparatus for tubes and rods

1980-02-19

1981-09-15

Ciarlante, Anthony V.

Measuring and testing

Vibration

By mechanical waves

73637, G01N 2904

Patent

active

042890330

ABSTRACT:
An ultrasonic test apparatus for testing tubes or rods by rotating transducers to provide a helical scan, the test transducer, or each of a plurality of transducers, is mounted for adjustable motion along an axis which is inclined by an angle .omega. with respect to a perpendicular axis intersecting the workpiece surface. The angle .omega. is selected to provide a desired incident angle .alpha. of the ultrasonic energy upon the workpiece surface, whereby to cause a refracted angle .beta. of the ultrasonic energy. Within the range of measuring accuracy for small angles it can be assumed that angle .omega. approximates angle .alpha..

REFERENCES:
patent: 3552190 (1971-01-01), Lefebvre
patent: 3924453 (1975-12-01), Clark et al.
patent: 3981184 (1976-09-01), Matay
patent: 4195530 (1980-04-01), Ross et al.

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