Automatic measurement and display of resonance frequencies of se

Details Automatic measurement and display of resonance frequencies of se Automatic measurement and display of resonance frequencies of se

1975-10-01

1977-03-29

Krawczewicz, Stanley T.

Electricity: measuring and testing

Measuring, testing, or sensing electricity, per se

Frequency of cyclic current or voltage

324 83FE, G01R 2700

Patent

active

040152022

ABSTRACT:
An apparatus and a method are described with which the resonance frequencies of seismic detector elements, such as geophones, hydrophones, or sets of geophones or hydrophones, may be automatically determined and displayed with relatively high precision, e.g., to two decimal places. The apparatus is useful under rough field conditions, as well as under laboratory conditions.

REFERENCES:
patent: 2986696 (1961-05-01), Seay
patent: 3717810 (1973-02-01), Spanbauer
patent: 3832630 (1974-08-01), Micol et al.
patent: 3840804 (1974-10-01), Sauerland

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