Electro-optical current sensing system and method for sensing an

Details Electro-optical current sensing system and method for sensing an Electro-optical current sensing system and method for sensing an

1994-03-03

1995-10-24

Wieder, Kenneth A.

Electricity: measuring and testing

Measuring, testing, or sensing electricity, per se

Thermal

324 96, 324126, 324117R, G01R 144

Patent

active

054613078

ABSTRACT:
An electro-optics current sensing system for sensing and avoiding thermally induced measurement errors in a current sensor includes a beam generator, such as a light emitting diode or a laser diode, thermally coupled to the current sensor for encoding into the optical beam supplied by the beam generator both temperature and sensed current information. An electro-optics (E/O) demodulator which includes a wavelength division multiplexer (WDM) demodulates the encoded optical beam to recover the temperature and sensed current information from a pair of demodulated signals which can be further processed for filtering resistivity changes from the sensed current measurement.

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