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Proceedings Paper

Application of the Pockels effect to electric current measurement
Author(s): Fei Long; Jianhuan Zhang; Zhiwei Yuan; Chunrong Xie
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Paper Abstract

The traditional way to measure an electric field electrically disturbs the original field, so that can cause a number of measuring problems. Using a Pockels' crystal to measure an electric field has several advantages over electrical methods, such as interference from electromagnetic radiation, high sensitivity and wide frequency bandwidth. This paper presents a kind of new optical method for measuring electric current, this new method makes the Sensing Technology on Pockels effect, Faraday effect and optical Technology together. The sensor combines a Rogowski coil with a passive integrator located in the high-voltage environment. Test results from 20 A to 1.5 kA show the sensor to be highly linear, exceeding 0.2% linearity standards.

Paper Details

Date Published: 8 January 2008
PDF: 6 pages
Proc. SPIE 6838, Optoelectronic Devices and Integration II, 68381H (8 January 2008); doi: 10.1117/12.753841
Show Author Affiliations
Fei Long, Xiamen Univ. (China)
Jianhuan Zhang, Xiamen Univ. (China)
Zhiwei Yuan, Xiamen Univ. (China)
Chunrong Xie, Xiamen Univ. (China)

Published in SPIE Proceedings Vol. 6838:
Optoelectronic Devices and Integration II
Xuping Zhang; Hai Ming; Maggie Yihong Chen, Editor(s)

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