Paper
31 March 2010 Study on the creep properties of distributed optical fiber sensors
Shiwei Song, Caiqian Yang, Zhishen Wu, Yufeng Zhang, Sheng Shen
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Abstract
In this paper, based on the distributed optical fiber strain sensing technology of pulse-pre-pump Brillouin Optical Time Domain Analysis (PPP-BOTDA), the creep properties of two types of optical fiber sensors, i.e. single mode optical fiber with jacket (Type-A) and optical fiber with UV resin coating (Type-B), were studied at different load (60g~600g) amplitudes. Experimental results show that there exists some creep for both types in initial loading period and tend to level off with time. But for Type-B, the strain variation is 5% of initial strain, and the stabilization time is about 48h, both of which are obviously smaller than those of Type-A. As a result, it is revealed that Type-B is characterized by a smaller creep, suitable for the long-term monitoring of infrastructures.
© (2010) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Shiwei Song, Caiqian Yang, Zhishen Wu, Yufeng Zhang, and Sheng Shen "Study on the creep properties of distributed optical fiber sensors", Proc. SPIE 7647, Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2010, 76472M (31 March 2010); https://doi.org/10.1117/12.847448
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Cited by 1 scholarly publication.
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KEYWORDS
Optical fibers

Fiber optics sensors

Coating

Optical sensing

Temperature metrology

Fiber lasers

Scattering

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