Acoustic data acquisition device

Details Acoustic data acquisition device Acoustic data acquisition device

1976-07-02

1977-08-16

Myracle, Jerry W.

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

040417743

ABSTRACT:
Acoustic signals are received, selectively filtered, and digitally processed, e.g., by digitizing an amplitude, the peak of an echo, or the transit time, and the digital data are stored in a memory whose storage cells are associated with particular frequencies. Other acoustical signals are similarly processed but compared with the reference data to obtain a spectral representation of differences or ratios.

REFERENCES:
patent: 3857052 (1974-12-01), Beller
patent: 3942358 (1976-03-01), Pies

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