Method and apparatus for detecting acoustic homogeneity of objec

Details Method and apparatus for detecting acoustic homogeneity of objec Method and apparatus for detecting acoustic homogeneity of objec

1985-04-15

1986-12-09

Ciarlante, Anthony V.

Measuring and testing

Vibration

By mechanical waves

G01N 2904

Patent

active

046272909

ABSTRACT:
A pulsating sound wave beam is transmitted into an object using an array-type ultrasonic wave transducer which consists of a plurality of elements; the reflected sound waves are received using said transducer while electronically focusing the reflected sound waves depending upon an estimated speed of sound in the object, and the beam width of sound waves is measured repeatedly near a particular reflector while successively changing the estimated speed of sound. The estimated speed of sound of when the beam width is minimal is the mean speed of sound of the object in practice, and the beam width at that moment serves as an indication of acoustical homogeneity of the object.

REFERENCES:
patent: 3299694 (1967-01-01), Dickinson

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