Circuit arrangement for the frequency analysis of a signal

Details Circuit arrangement for the frequency analysis of a signal Circuit arrangement for the frequency analysis of a signal

1976-03-05

1977-12-06

Hartary, Joseph W.

Recorders

Combined with external recorder operating means

Well logging

324 77C, 346 75, G01R 2318

Patent

active

040620204

ABSTRACT:
A circuit arrangement for the frequency analysis of a signal, including a plurality of band filter channels, to whose inputs there is transmitted in parallel the signal which is to be analyzed, and which possess band filters having different limiting or boundary frequencies and containing rectifiers and integrators for the integration of the rectified output signals of the band filters at predetermined integrating intervals; and having a scanning arrangement connected to the outputs thereof which interrogates the integration results pursuant to predetermined intervals.

REFERENCES:
patent: 2159790 (1939-05-01), Freystedt
patent: 2492062 (1949-12-01), Potter
patent: 2566443 (1951-09-01), Elmquist
patent: 3582957 (1971-06-01), Herleikson

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