Electric potential sensor

Details Electric potential sensor Electric potential sensor

2006-12-12

2006-12-12

Nguyen, Vincent Q. (Department: 2858)

Electrophotography

Control of electrophotography process

Of plural processes

C324S458000

Reexamination Certificate

active

07149442

ABSTRACT:
An electric potential sensor includes a detecting electrode, a capacitor modulating unit for modulating a coupling capacitance between the detecting electrode and a measurement object by using an electrostatic force, and a shielding unit for electrically shielding the detecting electrode from electric fields due to the electrostatic force of the capacitor modulating unit. An electric potential of the measurement object is measured based on a change caused by the capacitor modulating unit in the amount of electrical charge induced in the detecting electrode. Entrance of lines of electric force due to the electrostatic force of the capacity modulating unit into the detecting electrode is prevented or reduced, so that an unfavorable mixture of driving noise into an output signal of the detecting electrode can be prevented or reduced.

REFERENCES:
patent: 3013203 (1961-12-01), Allen et al.
patent: 3852667 (1974-12-01), Williams et al.
patent: 4261660 (1981-04-01), Suzuki et al.
patent: 4367948 (1983-01-01), Suzuki
patent: 4683436 (1987-07-01), Suzuki
patent: 4720682 (1988-01-01), Ikushima et al.
patent: 5585730 (1996-12-01), Pazda et al.
patent: 6177800 (2001-01-01), Kubby et al.
patent: 6628916 (2003-09-01), Yasui et al.
patent: 2000-147035 (2000-05-01), None
D.P. Loconto and R.S. Muller, “High-Sensitivity Micromechanical Electrostatic Voltmeter”, The 7th International Conference on Solid-State Sensors and Actuators, pp. 878-881.

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