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An optical AC voltage sensor based on the transverse Pockels effect.

Feng Pan¹, Xia Xiao, Yan Xu

¹State Key Laboratory of Advanced Electromagnetic Engineering and Technology, College of Electrical and Electronic Engineering, Huazhong University of Science and Technology, 1037 Luoyu Road, 430074 Wuhan, China. pf6601@163.com

Sensors (Basel, Switzerland)

|December 14, 2011

Summary

This study presents a novel optical AC voltage sensor using the transverse Pockels effect in a Bismuth Germanate (Bi4Ge3O12) crystal. The developed sensor demonstrates high accuracy and linearity, suitable for electric power industry applications.

Keywords:

Bi4Ge3O12 electro-optical crystal optical voltage sensor transverse Pockels effect

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Area of Science:

Optoelectronics
Solid-state physics
Electrical engineering

Background:

Traditional AC voltage sensors face challenges in high-voltage environments.
The Pockels effect offers a non-intrusive method for electric field measurement.

Purpose of the Study:

To introduce and evaluate an optical AC voltage sensor.
To demonstrate the feasibility of using Bismuth Germanate (Bi4Ge3O12) crystals for voltage sensing.
To assess the sensor's performance for high AC voltage applications.

Main Methods:

Utilizing the transverse Pockels effect in a bulk Bi(4)Ge(3)O(12) crystal.
Describing the measurement principle of the optical sensor.
Constructing and evaluating a prototype sensor.

Main Results:

The optical sensor exhibited good linearity in AC voltage measurements.
High accuracy was achieved in the prototype sensor's performance.
The sensor's design is suitable for practical implementation.

Conclusions:

The developed optical AC voltage sensor is effective for high AC voltage measurements.
The Bi(4)Ge(3)O(12) crystal is a viable sensing element for this application.
The sensor holds potential for use in the electric power industry.