Electro-optic high voltage sensor
A small sized electro-optic voltage sensor capable of accurate measurement of high voltages without contact with a conductor or voltage source is provided. When placed in the presence of an electric field, the sensor receives an input beam of electromagnetic radiation. A polarization beam displacer separates the input beam into two beams with orthogonal linear polarizations and causes one linearly polarized beam to impinge a crystal at a desired angle independent of temperature. The Pockels effect elliptically polarizes the beam as it travels through the crystal. A reflector redirects the beam back through the crystal and the beam displacer. On the return path, the polarization beam displacer separates the elliptically polarized beam into two output beams of orthogonal linear polarization. The system may include a detector for converting the output beams into electrical signals and a signal processor for determining the voltage based on an analysis of the output beams.
- Research Organization:
- Idaho National Laboratory (INL), Idaho Falls, ID (United States)
- Sponsoring Organization:
- USDOE
- DOE Contract Number:
- AC07-94ID13223
- Assignee:
- Bechtel BWXT Idaho, LLC (Idaho Falls, ID)
- Patent Number(s):
- 6,621,258
- Application Number:
- 10/100,391
- OSTI ID:
- 1174494
- Country of Publication:
- United States
- Language:
- English
Modifications of optical fiber voltage sensor
|
conference | January 1990 |
Development of optical instrument transformers
|
journal | April 1990 |
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