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Proceedings Paper

Design of distributed optical fiber sensing instrument by functionally divided modules
Author(s): Lidong Lu; Yun Liang; Binglin Li; Jinghong Guo; Hao Zhang
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Paper Abstract

Distributed optical fiber sensing technologies and corresponding instruments have been greatly developed in the recent 30 years. Many instruments such as optical time domain reflectometry (OTDR), Brillouin optical time domain reflctometry (BOTDR), Brillouin optical time domain analyzer (BOTDA), Raman optical time domain reflectometry (ROTDR), coherent optical time domain reflectometry (COTDR), optical frequency domain reflectometry (OFDR) and so on, have been playing important roles in structure health monitoring and other fields needing distributed status parameter sensing. However, these distributed optical fiber sensing instruments produced by different companies or institutes do not follow the same standards and their structure has huge difference. To build a universal structure standard for the distributed optical fiber sensing instruments (OFSI), a concept which adopts functionally divided modules to define OFSI is proposed and its feasibility is discussed. Generally, OFSI can be divided into five functional modules: controller module, pulse generator module, photo-electric module, signal gathering and processing modules and standard processing chassis module. Then the characteristics of OFSI are embodied mostly by the photo-electric modules. The novel method makes full use of the common functional parts and enhances the flexibility of OFSI, which can reduce the cost of OFSI. Additionally, to produce an instrument by functionally divided modules is a technical trend, and it will promote the standardization of OFSI.

Paper Details

Date Published: 9 March 2015
PDF: 7 pages
Proc. SPIE 9449, The International Conference on Photonics and Optical Engineering (icPOE 2014), 94494A (9 March 2015); doi: 10.1117/12.2075849
Show Author Affiliations
Lidong Lu, China Electric Power Research Institute (China)
Yun Liang, China Electric Power Research Institute (China)
Binglin Li, China Electric Power Research Institute (China)
Jinghong Guo, China Electric Power Research Institute (China)
Hao Zhang, China Electric Power Research Institute (China)


Published in SPIE Proceedings Vol. 9449:
The International Conference on Photonics and Optical Engineering (icPOE 2014)
Ailing Tian; Anand Asundi; Weiguo Liu; Chunmin Zhang, Editor(s)

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