Study on the creep properties of distributed optical fiber sensors

Shiwei Song; Caiqian Yang; Zhishen Wu; Yufeng Zhang; Sheng Shen

doi:10.1117/12.847448

31 March 2010 Study on the creep properties of distributed optical fiber sensors

Shiwei Song, Caiqian Yang, Zhishen Wu, Yufeng Zhang, Sheng Shen

Proceedings Volume 7647, Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2010; 76472M (2010) https://doi.org/10.1117/12.847448
Event: SPIE Smart Structures and Materials + Nondestructive Evaluation and Health Monitoring, 2010, San Diego, California, United States

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.

Citation Download Citation

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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