Surface potentiometer for use in an electrostatic copier

Details Surface potentiometer for use in an electrostatic copier Surface potentiometer for use in an electrostatic copier

1978-10-31

1981-04-14

Braun, Fred L.

Photocopying

Projection printing and copying cameras

Combined with or convertible to a contact printer

324455, 324457, G03G 1500

Patent

active

042616603

ABSTRACT:
A surface potentiometer has a conductive shield housing provided in proximity to a body to be measured, a cage-shaped chopper rotatable within the housing, and an electrode disposed further inwardly of the chopper. The chopper is rotated to induce in the electrode a voltage corresponding to the potential of the body to be measured, thereby measuring the surface potential of the body to be measured.

REFERENCES:
patent: 3013203 (1961-12-01), Allen et al.
patent: 3321307 (1967-05-01), Urbach
patent: 3525936 (1970-08-01), Vosteen
patent: 3667036 (1972-05-01), Seachman
patent: 3898001 (1975-08-01), Hardenbrook et al.
patent: 4127806 (1978-11-01), Shuey et al.

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