Loop Topology Based White Light Interferometric Fiber Optic Sensor Network for Application of Perimeter Security

作     者：Libo YUAN Yongtao DONG 

作者机构：Key Laboratory of Optical Fiber Sensors (Heilongfiang Province) Photonics Research Center College of ScienceHarbin Engineering University Harbin 150001 China Department of Civil and Environmental Engineering University of Alaksa Fairbanks Fairbanks AK 99709 USA 

基　　金：This work was supported by the key project of Nature Science Foundation of Heilongjiang Province (No. ZD200810) and Key Project Foster Program for University and College Science and Technology Innovation (No. 708030)  and partially supported by the National Nature Science Foundation of China  under grant number 60877046  60707013  and 60807032  to the Harbin Engineering University 

出 版 物：《Photonic Sensors》 (光子传感器（英文版）)

年 卷 期：2011年第1卷第3期

页      码：260-267页

摘      要：A loop topology based white light interferometric sensor network for perimeter security has been designed and demonstrated. In the perimeter security sensing system, where fiber sensors are packaged in the suspended cable or buried cable, a bi-directional optical path interrogator is built by using Michelson or Mach-Zehnder interferometer. A practical implementation of this technique is presented by using an amplified spontaneous emission （ASE） light source and standard single mode fiber, which are common in communication industry. The sensor loop topology is completely passive and absolute length measurements can be obtained for each sensing fiber segment so that it can be used to measure quasi-distribution strain perturbation. For the long distance perimeter monitoring, this technique not only extends the multiplexing potential, but also provides a redundancy for the sensing system. One breakdown point is allowed in the sensor loop because the sensing system will still work even if the embedded sensor loop breaks somewhere.

主 题 词：Optical fiber sensors quasi-distributed sensing system perimeter security white light interferometry 

学科分类：080202[080202] 08[工学] 0802[工学-机械学] 

核心收录：

D　O　I：10.1007/s13320-010-0009-9

馆 藏 号：203139587...