Electricity: measuring and testing – Measuring – testing – or sensing electricity – per se – Frequency of cyclic current or voltage
Patent
1974-09-04
1976-04-27
Rolinec, R. V.
Electricity: measuring and testing
Measuring, testing, or sensing electricity, per se
Frequency of cyclic current or voltage
324 78J, 324140D, G01R 1900
Patent
active
039537935
ABSTRACT:
The invention relates to a method and an arrangement for determining signals affected by disturbance or interference. The affected signals are continuously integrated, either directly or subsequent to suitable transformation thereof, from the very start of a measuring operation. The actual integration value is divided at determined time intervals with the actual measuring time which has elapsed at that moment from the start of said measuring operation. The quotient thus obtained is presented to an observer or a device which is arranged to interrupt the measuring operation when the value presented is substantially constant.
REFERENCES:
patent: 3654424 (1972-04-01), Vanderhelst
patent: 3866128 (1975-02-01), Fletcher
Boliden Aktiebolag
Rolinec R. V.
Tokar Michael J.
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