Method and apparatus for detecting voltage

Details Method and apparatus for detecting voltage Method and apparatus for detecting voltage

1990-04-11

1991-10-08

Wieder, Kenneth A.

Electricity: measuring and testing

Measuring, testing, or sensing electricity, per se

Using radiant energy

324 725, 324 77K, 359246, 359252, 359315, G01R 2316

Patent

active

050557700

ABSTRACT:
A voltage in a selected area of an object is measured by launching an input light beam into an electrooptic material whose refractive index is changed in accordance with an electric field created by the voltage in a selected area of an object to be measured, and detecting a change in polarization or in a deflection angle of an output light beam from the electrooptic material. A medium having a dielectric constant greater than the air is placed between the area to be measured and the electrooptic material.

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LLE Review, vol. 32, Jul.-Sep. 1987, pp. 158-163.
Valdmanis, Janis A. et al., "Subpicosecond Electrooptic Sampling: Principles and Applications", IEEE Journal of Quantum Electronics, vol. QE-22, No. 1, Jan. 1986, pp. 69-78.
Kolner, Brian H. et al., "Electrooptic Sampling In GaAs Integrated Circuits", IEEE Journal of Quantum Electronics, vol. QE-22, No. 1, Jan. 1986.

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