ELECTROSTATIC VOLTMETER SELF-TEST FEATURE
Original Publication Date: 1980-Dec-31
Included in the Prior Art Database: 2004-Apr-02
Xerox Disclosure Journal
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.