Chapter
Apr 26, 2012
Research on BOTDR Sensing Technique in Structural Health Monitoring
Authors: X. F. Zhao [email protected], J. Lu, and J. P. Ou [email protected]Author Affiliations
Publication: Earth and Space 2010: Engineering, Science, Construction, and Operations in Challenging Environments
Abstract
Feasibility study on application of BOTDR (Brillouin Optical Time Domain Relectometer) to health monitoring for bridge structures is conducted in this paper. According to the monitoring requirement of bridge strucutrure, BOTDR temperature sensor and BOTDR strain sensor are proposed and studied. Temperature sensitivity and strain sensitivity test are conducted to study the feasibility of the sensor. Temperature sensitivity test results show that BOTDR temperature sensors with packaged optical fiber length of 5m, 10m and 20m can measure the temperature correctly. Strain sensitivity test results show that BOTDR strain sensor with optic fiber length of 1m and 2m can measure the strain correctly.
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Published In
Earth and Space 2010: Engineering, Science, Construction, and Operations in Challenging Environments
Pages: 2487 - 2493
Copyright
© 2010 American Society of Civil Engineers.
History
Published online: Apr 26, 2012
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Authors
Affiliations
School of Civil Engineering, Dalian university of technology, Dalian, Linggong Road, 116085, China. E-mail: [email protected]
J. Lu
School of Civil Engineering, Dalian university of technology, Dalian, Linggong Road, 116085, China
School of Civil Engineering, Dalian university of technology, Dalian, Linggong Road, 116085, China and School of Civil Engineering, Harbin Institute of Technology, Harbin, 150090, Haihe road, China. E-mail: [email protected]
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