Protected voltage meter

Details Protected voltage meter Protected voltage meter

1975-10-20

1977-05-31

Rolinec, Rudolph V.

Electricity: measuring and testing

Measuring, testing, or sensing electricity, per se

Meter protection or fraud combatting

321 45R, 324 74, 324119, G01R 136, G01R 1922

Patent

active

040272400

ABSTRACT:
An electronic meter circuitry for use in detecting an electrical signal vage in an ordnance firing circuit for providing an unidirectional signal to an indicator which shows the presence of the signal voltage. The circuitry utilizes a first limiter to reduce the amplitude of the detected signal to a predetermined level, a bridge rectifier to provide a unidirectional signal and a second limiter to prevent overloading the indicator. A self contained test circuit utilizing a current source and two current limiting resistors is supplied so proper operation of the meter circuitry prior to use may be readily ascertained.

REFERENCES:
patent: 2917603 (1959-12-01), Leconte
patent: 3183446 (1965-05-01), Richman
patent: 3339080 (1967-08-01), Howald

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