Electro-optic effect based optical voltage transformer
US9121872B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 31, 2011 |
| Grant date | Sep 1, 2015 |
| Priority date | — |
| Expiry date | Mar 2, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R15/247
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An electro-optic effect based optical voltage transformer comprises an optical voltage sensor head and an electrical unit, wherein the electrical unit comprises an optical closed-loop feedback control unit and a signal processing unit, the optical closed-loop feedback control unit is connected to the optical voltage sensor head and the optical voltage sensor head is connected to the signal processing unit. In this invention, the light source output power is more stable, the light source center wavelength drift is effectively controlled and the output power coastdown caused by light source aging is prevented; the optical power fluctuation of the optical polarization caused by factors such as temperature, optical fiber vibration, etc., is eliminated, which is conductive to stability and reliability of the optical system; the accuracy of data is improved.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.