Analog signal processor

Details Analog signal processor Analog signal processor

1975-07-02

1977-03-22

Rolinec, R. V.

Electricity: measuring and testing

Testing potential in specific environment

Voltage probe

324115, 328260, 307260, 321 9R, 321 8R, 321 18, 321 27, H02M 700, H03K 500

Patent

active

040139557

ABSTRACT:
An analog signal processor that is particularly suitable for measuring, igrating and holding a single or a pair of analog signals. The input signal to the analog signal processor may be sinusoidal of relatively low frequency and of low signal strength and slowly varying phase such as may be obtained from a pair of capacitive plates used in electric field measuring devices. The analog signal processor includes an analog current to voltage convertor, a synchronous rectifier and an integrate and hold circuit. In practice the analog signal processor may be mounted on a rotating shaft and converts the very low differentially alternating current input to a proportional d.c. voltage output. The analog signal processor includes timing and switching circuits to provide the desired information about vertical, horizontal and inclined electric fields.

REFERENCES:
patent: 3238383 (1966-03-01), Falk
patent: 3305769 (1967-02-01), Julie
patent: 3480794 (1969-11-01), Richman
patent: 3491252 (1970-01-01), Petrohkos
patent: 3539936 (1970-11-01), McGhee
patent: 3564387 (1971-02-01), Gadberry
patent: 3586973 (1971-06-01), Lawton
patent: 3825816 (1974-07-01), Togneri et al.

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