3-dimensional fiber Bragg grating strain and displacement sensing system based on a cylinder structure

Autor: Jianhua Luo, Xiaoyi Dong, Yuwen Lan, Guiyun Kai, Bo Liu, Shuzhong Yuan
Rok vydání: 2009
Předmět:
Zdroj: Frontiers of Optoelectronics in China. 2:64-67
ISSN: 1674-4594
1674-4128
DOI: 10.1007/s12200-008-0043-z
Popis: 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.
Databáze: OpenAIRE