Surface potentiometer

Details Surface potentiometer Surface potentiometer

1980-12-23

1984-09-04

Tokar, Michael J.

Electricity: measuring and testing

Testing potential in specific environment

Voltage probe

324457, 324458, G01N 3102

Patent

active

044700091

ABSTRACT:
A surface potentiometer comprises a measuring electrode, a chopper for intermittently shielding the electric field between the measuring electrode and an object to be measured, a preamplifier circuit for converting an AC signal induced in the measuring electrode into a low impedance signal, and a printed substrate having the wiring pattern of the preamplifier circuit formed on one surface thereof and the electrode pattern of the measuring electrode formed on the other surface thereof.

REFERENCES:
patent: 4267511 (1981-05-01), Suzuki
patent: 4318042 (1982-03-01), Eda

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