Electrostatic voltmeter

G - Physics – 01 – R

Patent

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Details

G01R 29/12 (2006.01) G01R 15/14 (2006.01) G01R 15/16 (2006.01) G01R 19/165 (2006.01)

Patent

CA 2124484

An electrostatic measurement apparatus for generating a modified electrical signal in proportion to an electrostatic potential present on a surface. The apparatus includes a sensor for producing a signal representative of the electrostatic potential on the surface. The apparatus also includes a high-voltage level shifter and a converter to transform the sensor signal into a low-voltage signal indicative of the surface potential. The electrostatic measurement apparatus is implemented using high-voltage and low-voltage integrated circuit technology.

Appareil de mesure électrostatique permettant de produire un signal électrique modifié proportionnellement à un potentiel électrostatique présent sur une surface. Comprend un capteur pour produire un signal représentant le potentiel électrostatique sur la surface, ainsi qu'un translateur de niveau haute tension et un convertisseur pour transformer le signal du capteur en un signal basse tension indiquant le potentiel de la surface. L'appareil de mesure électrostatique est réalisé au moyen de circuits intégrés haute tension et basse tension.

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