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Optical High DC Voltage Sensor Based on White-Light Interferometry

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5 Author(s)
Zhuang Wang ; Dept. of Electr. & Comput. Eng., Virginia Tech, Blacksburg, VA ; Yibing Zhang ; Lijun Song ; Xingwei Wang
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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

Published in:

Photonics Technology Letters, IEEE  (Volume:18 ,  Issue: 19 )