Title :
Optical High DC Voltage Sensor Based on White-Light Interferometry
Author :
Wang, Zhuang ; Zhang, Yibing ; Song, Lijun ; Wang, Xingwei ; Wang, Anbo
Author_Institution :
Dept. of Electr. & Comput. Eng., Virginia Tech, Blacksburg, VA
Abstract :
This letter reports an optical system for high dc voltage measurement utilizing a bulk LiNbO3 crystal with specialized-orientation as a sensing element. White-light interferometry is employed to encode the electric voltage information in the optical spectrum instead of intensity. Measurement of dc voltage from 0 to 9 kV with resolution of 2.3 V has been experimentally demonstrated
Keywords :
electro-optical effects; fibre optic sensors; light interferometry; lithium compounds; voltage measurement; 0 to 9 kV; LiNbO3; bulk LiNbO3 crystal; electric voltage information; fiber-optic sensor; high DC voltage sensor; high dc voltage measurement; optical sensor; optical spectrum; optical system; sensing element; specialized-orientation; white-light interferometry; Biomedical measurements; Biomedical optical imaging; Optical attenuators; Optical fiber polarization; Optical fiber sensors; Optical interferometry; Optical mixing; Optical sensors; Optical signal processing; Voltage measurement; Electrooptics; Pockels effect; fiber-optic sensor; high voltage measurement; white-light interferometry (WLI);
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2006.882310
