Surface potential sensing device

Details Surface potential sensing device Surface potential sensing device

1996-11-01

2000-01-11

Ballato, Josie

Electricity: measuring and testing

Impedance, admittance or other quantities representative of...

Lumped type parameters

324663, 324457, G01R 2726

Patent

active

060140283

ABSTRACT:
In a surface potential sensing device, a sense electrode electrically independent of an object is located at a preselected distance from the object for sensing the surface potential of the object Electrostatic capacitance between the object and the sense electrode is varied in order to detect two or more variables in a potential signal output from the sense electrode. The potential detection signal is corrected on the basis of the two or more variables.

REFERENCES:
patent: 3852667 (1974-12-01), Williams
patent: 4367948 (1983-01-01), Suzuki
patent: 4569583 (1986-02-01), Robson
patent: 4725393 (1988-02-01), Kumada
patent: 4748390 (1988-05-01), Okushima
patent: 4973910 (1990-11-01), Wilson
patent: 5539319 (1996-07-01), Yamada

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