Fiber optic strain, temperature and shape sensing via OFDR for ground, air and space applications

被引：15

作者：

Bos, Joseph ^{[1
]}

Klein, Justin ^{[1
]}

Froggatt, Mark ^{[1
]}

Sanborn, Eric ^{[1
]}

Gifford, Dawn ^{[1
]}

机构：

[1] Luna Innovat, Blacksburg, VA 24073 USA

来源：

NANOPHOTONICS AND MACROPHOTONICS FOR SPACE ENVIRONMENTS VII | 2013年 / 8876卷

关键词：

Optical fiber sensing; distributed sensing; shape sensing; temperature sensing; optical frequency domain reflectometry; Rayleigh scatter; structural health monitoring;

D O I：

10.1117/12.2025711

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Optical Frequency Domain Reflectometry (OFDR) is used to interrogate fiber sensors adhered to various structures. Temperatures in excess of 1000 degrees C are observed on a thermal-barrier coated stainless steel test plate as it is exposed to a high-temperature torch. The surface temperature distribution is mapped with 5 mm spatial resolution at 100 Hz, revealing large spatial and temporal thermal gradients at coating defect locations. Results and response times are compared with conventional K type thermocouples. Also presented in this work, are real-time position, shape and twist measurements of a simple structure as it is subjected to various loads.

引用

页数：15

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