Ultrasonic pulse-echo apparatus

Details Ultrasonic pulse-echo apparatus Ultrasonic pulse-echo apparatus

1975-04-18

1977-08-23

Queisser, Richard C.

Measuring and testing

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

Content or effect of a constituent of a liquid mixture

G01N 2900

Patent

active

040431819

ABSTRACT:
For use in ultrasonic pulse-echo apparatus including an ultrasonic wave transducer for transmitting an ultrasonic wave toward an object to be examined and for producing an electric signal corresponding to echo pulses reflected by the object, an improved signal processing circuit for compensating for attenuation effects caused by ultrasound absorption, diffraction, reflection and scattering. Compensation for these image-degrading effects assures simple, reliable and repeatable equipment performance, and contributes to reliable detection of very weak echoes.

REFERENCES:
patent: 3033029 (1962-05-01), Weighart
patent: 3287962 (1966-11-01), Relyea et al.
patent: 3348410 (1967-10-01), Henry
patent: 3367173 (1968-02-01), Uphoff
patent: 3552191 (1971-01-01), Heseding
patent: 3608361 (1971-09-01), Krautkramer
patent: 3690153 (1972-09-01), Matay
patent: 3778757 (1973-12-01), Houston

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