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Electrical and electronic engineering, Communication engineering and systems
We propose and demonstrate an optical voltage sensing scheme based on a macrobending optical fiber in a ratiometric power measurement system. This novel approach to sensing has not been utilized before and has the advantage that the sensor involves simple fabrication compared to existing fiber-optic voltage sensors. To prove the feasibility of such a fiber-optic sensor, a sensor for a voltage range from 0 similar to 100 V is demonstrated, with a resolution of 0.5 V. The sensor is robust, linear, and shows a competitive measurement resolution. The sensor can be easily scaled to suit other voltage levels and be effectively combined with optical current sensors.
Wang, P., Semenova, Y., Wu, Q., Farrell, G.:A Fiber-Optic Voltage Sensor Based on Macrobending Structure. Optics and Laser Technology, Vol. 43, 5, 2011, pp.922-924. doi:10.1016/j.optlastec.2011.01.003