Electricity: measuring and testing – Measuring – testing – or sensing electricity – per se – Nonquantitative
Patent
1990-08-30
1991-12-31
Harvey, Jack B.
Electricity: measuring and testing
Measuring, testing, or sensing electricity, per se
Nonquantitative
324126, 359 84, G01R 19155, G02F 113
Patent
active
050775200
ABSTRACT:
A voltage indicator for instantaneously indicating the voltage level on an electrical conductor within a connector component in an AC power distribution system includes a housing for engaging the body of the connector component. Within the housing, the display electrodes of a multi-segment high impedance liquid crystal display component are coupled to the monitored conductor through a capacitive voltage divider to provide an unambiguous bar graph type indication of the voltage level on the conductor.
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"Liquid Crystal Display", A publication of Hamlin Inc., Lake and Grove Streets, Lake Mills, Wis., circa Jun. 1, 1989.
"Electronically Scanned Analog Liquid Crystal Displays", by R. A. Soref, Applied Optics, Jun. 1970, vol. 9, No. 6.
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