Method and apparatus for measuring thickness of clad steel

Details Method and apparatus for measuring thickness of clad steel Method and apparatus for measuring thickness of clad steel

1980-05-20

1982-06-15

Ciarlante, Anthony V.

Measuring and testing

Vibration

By mechanical waves

G01N 2900

Patent

active

043344330

ABSTRACT:
A method and apparatus for measuring the thicknesses of a cladding layer and a base metal layer by applying ultrasonic waves on the side of a sample opposite the cladding layer. The reflected waves are sensed and displayed on an oscilloscope. Using a disclosed technique for eliminating noise and interference, the position of the interface between the cladding layer and base metal layer are measured from a pulse produced due to the discontinuity of acoustic impedance at the interface.

REFERENCES:
patent: 3643494 (1972-02-01), Kammer
patent: 3918296 (1975-11-01), Kitada
patent: 3985022 (1976-10-01), Dileo
Krautkramer, Ultrasonic Testing of Materials, Sect. 14.5, pp. 318-324, 1977.
Krautkramer, Ultrasonic Testing of Materials, Sect. 10.2.2, pp. 202-205, 1977.

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