Title
An Elimination Method of Temperature-Induced Linear Birefringence in a Stray Current Sensor.
Abstract
In this work, an elimination method of the temperature-induced linear birefringence (TILB) in a stray current sensor is proposed using the cylindrical spiral fiber (CSF), which produces a large amount of circular birefringence to eliminate the TILB based on geometric rotation effect. First, the differential equations that indicate the polarization evolution of the CSF element are derived, and the output error model is built based on the Jones matrix calculus. Then, an accurate search method is proposed to obtain the key parameters of the CSF, including the length of the cylindrical silica rod and the number of the curve spirals. The optimized results are 302 mm and 11, respectively. Moreover, an effective factor is proposed to analyze the elimination of the TILB, which should be greater than 7.42 to achieve the output error requirement that is not greater than 0.5%. Finally, temperature experiments are conducted to verify the feasibility of the elimination method. The results indicate that the output error caused by the TILB can be controlled less than 0.43% based on this elimination method within the range from -20 degrees C to 40 degrees C.
Year
DOI
Venue
2017
10.3390/s17030551
SENSORS
Keywords
Field
DocType
stray current sensor,temperature-induced linear birefringence,geometric rotation effect
Differential equation,Spiral,Analytical chemistry,Matrix calculus,Fiber,Cylinder,Optics,Polarization (waves),Chemistry,Electronic engineering,Birefringence,Stray voltage
Journal
Volume
Issue
Citations 
17
3.0
0
PageRank 
References 
Authors
0.34
5
6
Name
Order
Citations
PageRank
Shao-Yi Xu100.34
Wei Li231071.89
Fangfang Xing300.68
Yuqiao Wang474.76
Ruilin Wang500.34
Xianghui Wang633.11