[KSCI] Korea Science Citation Index Service

http://dx.doi.org/10.12989/smm.2016.3.2.145

Pulse-Pre Pump Brillouin Optical Time Domain Analysis-based method monitoring structural multi-direction strain

Su, Huaizhi (State Key Laboratory of Hydrology-Water Resources and Hydraulic Engineering, Hohai University)
Yang, Meng (College of Water Conservancy and Hydropower Engineering, Hohai University)
Wen, Zhiping (Department of Computer Engineering, Nanjing Institute of Technology)

Publication Information

Structural Monitoring and Maintenance / v.3, no.2, 2016 , pp. 145-155 More about this Journal

Abstract

The Pulse-Pre Pump Brillouin Optical Time Domain Analysis (PPP-BOTDA) technique is introduced to implement the multi-direction strain measurement. The monitoring principle is stated. The layout scheme of optical fibers is proposed. The temperature compensation formula and its realizing method are given. The experiments, under tensile load, combined bending and tensile load, are implemented to validate the feasibility of the proposed method. It is shown that the PPP-BOTDA technique can be used to discriminate the multi-direction strains with high spatial resolution and precision.

Keywords

multi-direction strain measurement; PPP-BOTDA; distributed optical fiber; experimental study;

Citations & Related Records

Times Cited By KSCI : 1 (Citation Analysis)

Reference
Cited By KSCI

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