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Sensors 2017, 17(1), 85;

Analysis of the Light Propagation Model of the Optical Voltage Sensor for Suppressing Unreciprocal Errors

Key Laboratory of Precision Opto-mechatronics Technology, Ministry of Education, School of Instrumentation Science and Opto-electronics Engineering, Beihang University, Beijing 100191, China
Fujian Key Laboratory of Light Propagation and Transformation, College of Information Science and Engineering, Huaqiao University, Xiamen 361021, China
Author to whom correspondence should be addressed.
Academic Editor: Vittorio M. N. Passaro
Received: 6 November 2016 / Revised: 18 December 2016 / Accepted: 26 December 2016 / Published: 3 January 2017
(This article belongs to the Section Physical Sensors)
Full-Text   |   PDF [6502 KB, uploaded 3 January 2017]   |  


An improved temperature-insensitive optical voltage sensor (OVS) with a reciprocal dual-crystal sensing method is proposed. The inducing principle of OVS reciprocity degradation is expounded by taking the different temperature fields of two crystals and the axis-errors of optical components into consideration. The key parameters pertaining to the system reciprocity degeneration in the dual-crystal sensing unit are investigated in order to optimize the optical sensing model based on the Maxwell's electromagnetic theory. The influencing principle of axis-angle errors on the system nonlinearity in the Pockels phase transfer unit is analyzed. Moreover, a novel axis-angle compensation method is proposed to improve the OVS measurement precision according to the simulation results. The experiment results show that the measurement precision of OVS is superior to ±0.2% in the temperature range from −40 °C to +60 °C, which demonstrates the excellent temperature stability of the designed voltage sensing system. View Full-Text
Keywords: optical voltage sensor; measurement accuracy; temperature stability optical voltage sensor; measurement accuracy; temperature stability

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Li, H.; Fu, Z.; Liu, L.; Lin, Z.; Deng, W.; Feng, L. Analysis of the Light Propagation Model of the Optical Voltage Sensor for Suppressing Unreciprocal Errors. Sensors 2017, 17, 85.

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