Electricity: measuring and testing – Measuring – testing – or sensing electricity – per se – Frequency of cyclic current or voltage
Patent
1978-12-04
1981-02-03
Krawczewicz, Stanley T.
Electricity: measuring and testing
Measuring, testing, or sensing electricity, per se
Frequency of cyclic current or voltage
324 58R, 324 58B, G01R 2700
Patent
active
042491274
ABSTRACT:
Digitally-controlled tracking impedances and an automatic standing wave ratio measuring instrument employing digitally-controlled tracking impedances to cause a voltage representing the forward voltage in a radio frequency transmission system to track a fixed voltage and to output a voltage with which the standing wave ratio can be directly displayed independently of the power characteristics of the transmission system.
REFERENCES:
patent: 2961605 (1960-11-01), Broadhead, Jr.
patent: 3555415 (1971-01-01), Shoemaker et al.
patent: 3683274 (1972-08-01), Martin
patent: 3704409 (1972-11-01), Oomen
patent: 4096441 (1978-06-01), Schwartz
patent: 4110685 (1978-08-01), Leenerts
patent: 4125809 (1978-11-01), Mott
Krawczewicz Stanley T.
Tarrant Thomas N.
Tram/Diamond Corporation
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