Method of measuring distribution and intensity of ultrasonic wav

Details Method of measuring distribution and intensity of ultrasonic wav Method of measuring distribution and intensity of ultrasonic wav

1994-07-20

1995-08-15

Raevis, Robert

Measuring and testing

Instrument proving or calibrating

Volume of flow, speed of flow, volume rate of flow, or mass...

367 13, G01N 2900

Patent

active

054409144

ABSTRACT:
There is provided a method of measuring three-dimensional distribution of ultrasonic waves which allows simple real time measurement, wherein a multiplicity of bubble-shaped elements, which are trace amounts of gas coated with an extremely thin coating, are dispersed in a liquid; an ultrasonic oscillation element is placed in the liquid to radiate ultrasonic waves; the bubble-shaped elements are collapsed by the radiation of the ultrasonic waves; and changes in the optical characteristics of the liquid caused by the collapse of the bubble-shaped elements are visually measured.

REFERENCES:
patent: 2803128 (1957-08-01), Petermann
patent: 4681119 (1987-07-01), Rasor et al.

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