Curvature monitoring of power grid wires based on anti-resonant reflecting guidance in hollow core fibers

被引：8

作者：

Zhao, Faqiang ^{[1
]}

Wang, Jianbo ^{[1
]}

Xiao, Yanxia ^{[1
]}

Zhang, Kun ^{[2
]}

Chen, Ran ^{[2
]}

Liu, Shuhui ^{[2
,3
]}

机构：

[1] Shenzhen Power Supply Co, Shenzhen 518122, Peoples R China

[2] Wuhan KPCQ Software Technol Co Ltd, Wuhan 430074, Peoples R China

[3] Wuhan Inst Technol, Hubei Key Lab Opt Informat & Pattern Recognit, Wuhan 430205, Peoples R China

来源：

OPTIK | 2020年 / 213卷

关键词：

Curvature sensing; Anti - resonant reflecting guidance; Fiber sensors; MACH-ZEHNDER INTERFEROMETER; BENDING SENSOR; TEMPERATURE;

D O I：

10.1016/j.ijleo.2020.164785

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

The curvature condition of power cables is monitored by a fiber sensor based on anti-resonant reflecting guidance mechanism in hollow core optical fibers. The sensor head is simple, which only consists of a section of hollow core fiber fusion spliced between single mode fibers. Multiple transmission dips are observed in the transmission spectrum, which arise from the anti-resonant reflecting effect in the silica ring cladding. The curvature of a power wire can be detected by attaching the fiber sensor to the cable. The transmitted intensity at resonant wavelengths rises as curvature applied on the power cable increases, and a sensitivity of 3.414 dB/m-1 is achieved. The temperature response of the sensor is also investigated, and the results indicate that such a sensor has low temperature cross-sensitivity of 0.002m(-1)/degrees C.

引用

页数：6

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