Electricity: measuring and testing – Measuring – testing – or sensing electricity – per se – Frequency of cyclic current or voltage
Patent
1976-02-27
1977-10-25
Rolinec, Rudolph V.
Electricity: measuring and testing
Measuring, testing, or sensing electricity, per se
Frequency of cyclic current or voltage
324 72, G01R 528, G01R 3102
Patent
active
040557987
ABSTRACT:
A rotary electric field intensity measuring device comprising a grounded housing, an amplifier mounted within said housing and electrically connected to an external recording device, an electric motor mounted within said housing and having an output shaft, said motor being adapted to be connected to an external power source, a rotary grounded shielding conical electrode means having a rotary shaft connected to said output shaft of the motor for rotation therewith and alternating voltage inducing means and a shielded stationary conical electrode means secured to said housing within said shielding rotary electrode means in spaced relationship to the latter and having alternating voltage inducing means in cooperation with said alternating voltage inducing means of the rotary electrode means.
REFERENCES:
patent: 2815483 (1957-12-01), Kaufman
patent: 3253207 (1966-05-01), Jauch
patent: 3544889 (1970-12-01), Alauz et al.
patent: 3812419 (1974-05-01), Kaunzinger
patent: 3846700 (1974-11-01), Sasaki et al.
Rolinec Rudolph V.
Sunderdick Vincent J.
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