Frontiers of Optoelectronics, Volume. 2, Issue 1, 64(2009)
3-dimensional fiber Bragg grating strain and displacement sensing system based on a cylinder structure
A novel 3-dimensional fiber Bragg grating (FBG) strain and displacement sensing system based on a cylinder structure was proposed. Three FBGs, fixed in the outer surface of the cylinder at the same level according to a 120° angle interval, were used as sensing elements. In principle, the three FBGs have some fixed relationship when a strain F is put on the cylinder. Based on the principles of physics and mathematics, theoretical derivations and the experimental set-up were shown. According to the experimental results, this sensor could measure the size and angles of the strain or displacement accurately.
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Jianhua LUO, Bo LIU, Yuwen LAN, Shuzhong YUAN, Guiyun KAI, Xiaoyi DONG. 3-dimensional fiber Bragg grating strain and displacement sensing system based on a cylinder structure[J]. Frontiers of Optoelectronics, 2009, 2(1): 64
Received: Sep. 14, 2007
Accepted: Nov. 25, 2007
Published Online: Oct. 8, 2012
The Author Email: LIU Bo (liubo@mail.nankai.edu.cn)