By Topic

A novel fiber torsion sensor using a high-birefringence fiber Bragg grating for demodulation

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$31 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

2 Author(s)
Bo-Rong Chue ; Dept. of Mech. Eng., Nat. Cheng Kung Univ., Tainan, Taiwan ; Yu-Lung Lo

A novel high-birefringence (Hi-Bi) fiber torsion sensor demodulated by a Hi-Bi fiber Bragg grating (FBG) is proposed in this study. The characteristics of a twisted Hi-Bi fiber sensor are analyzed by using the Jones matrix. As a result, the ratio of intensities from two reflecting Bragg wavelengths is varied with the twist angle in the measured Hi-Bi fiber. The advantages of the novel torsion sensor are: (1) insensitivity to intensity variations from the light source, (2) insensitivity to the torsion gauge length, (3) insensitivity to the thermal variation and external axial strain, (4) absolute measurement in the twist angle, and (5) multiplexing. Therefore, it could be applicable for smart structure applications, especially in bridges or other civil structures. However, freedom from transverse loading in order to prevent birefringence change in the twisted Hi-Bi fiber is necessary.

Published in:

Sensors, 2002. Proceedings of IEEE  (Volume:2 )

Date of Conference:

2002