Process and sensor for measuring electric voltages and/or electr

Details Process and sensor for measuring electric voltages and/or electr Process and sensor for measuring electric voltages and/or electr

1994-08-24

1996-09-24

Nguyen, Vinh P.

Electricity: measuring and testing

Fault detecting in electric circuits and of electric components

Of individual circuit component or element

324 96, G01R 1900, G01R 2316

Patent

active

055594425

ABSTRACT:
A process for measuring electric voltages and/or electric fields by the use of a crystal with an electro-optical (Pockels) effect. To this end, in a direction transverse to the direction of propagation (y direction) of a light wave polarized in the z direction, an electric field intensity gradient is generated in the crystal in the direction from which results a corresponding gradient in the refractive index n of the crystal. This produces a deflection of the light wave in the crystal which depends upon the field intensity and on emergence, it is used as a measure for the voltage of field intensity. A suitable sensor for this purpose is also described.

REFERENCES:
patent: 4755036 (1988-07-01), Suzuki et al.
patent: 5012183 (1991-04-01), Kawano et al.
patent: 5113131 (1992-05-01), Cooper et al.

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