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ELECTROSTATIC VOLTMETER SELF-TEST FEATURE

IP.com Disclosure Number: IPCOM000024517D
Original Publication Date: 1980-Dec-31
Included in the Prior Art Database: 2004-Apr-02

Publishing Venue

Xerox Disclosure Journal

Abstract

When an electrostatic voltmeter is to be used to perform a control function, it is important to insure its proper operation. Allowing the system to measure a test surface carrying a calibrated potential is a common procedure for accomplishing this. The circuit of the figure is disclosed as a method whereby the need for a special test surface and a calibrated power supply can be avoided.