Method and sensor for measuring electric voltages and/or...

Details Method and sensor for measuring electric voltages and/or... Method and sensor for measuring electric voltages and/or...

G - Physics

01

R

G01R 15/24 (2006.01) G01R 15/07 (1990.01)

Patent

CA 2130825

A method 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 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 also is described.

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