Electricity: measuring and testing – Measuring – testing – or sensing electricity – per se – With amplifier or space discharge device
Patent
1984-03-16
1987-02-24
Eisenzopf, Reinhard J.
Electricity: measuring and testing
Measuring, testing, or sensing electricity, per se
With amplifier or space discharge device
324158P, 324 725, G01R 130, G01R 3102
Patent
active
046460055
ABSTRACT:
A signal probe that does not require a direct ground contact is disclosed. The probe consists of a resistive measuring tip, an amplifier and a probe body which acts as an antenna providing a ground reference for the probe. The frequency of the signal measured may be compensated for by adjusting the resistive tip in the probe which varies the shunt capacitance between the resistor and the probe body.
REFERENCES:
patent: 2476115 (1949-07-01), Runbaken
patent: 2881400 (1959-04-01), Rogers
patent: 2883619 (1959-04-01), Kobbe et al.
patent: 4066953 (1978-01-01), Gold
"Allied Industrial Electronics Catalog 1967"; Allied Electronics; 1967; pp. 1, 409.
Eisenzopf Reinhard J.
Motorola Inc.
Nguyen Vinh P.
Warren Raymond J.
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