Digital monitoring for heavy duty mechanical equipment based on fiber Bragg grating sensor

作     者：ZHOU ZuDe JIANG DeSheng ZHANG DongSheng 

作者机构：School of Mechatronics EngineeringWuhan University of TechnologyHubei 430070China Key Laboratory of Fiber Optic Sensing Technology and Information Processing(Wuhan University of Technology)Ministry of EducationHubei 430070China 

出 版 物：《Science China(Technological Sciences)》 (中国科学（技术科学英文版）)

年 卷 期：2009年第52卷第2期

页      面：285-293页

核心收录：

学科分类：0810[工学-信息与通信工程] 08[工学] 080401[工学-精密仪器及机械] 0804[工学-仪器科学与技术] 080402[工学-测试计量技术及仪器] 0805[工学-材料科学与工程（可授工学、理学学位）] 0838[工学-公安技术] 0702[理学-物理学] 0812[工学-计算机科学与技术（可授工学、理学学位）] 

基　　金：Supported by the National Natural Science Foundation of China (Grant Nos.50620130441 and 50775167) 

主　　题：fiber Bragg grating sensor (FBGS) heavy duty mechanical equipment digital monitoring temperature compensation 

摘      要：The digital monitoring principle and technologies for heavy duty mechanical equipment based on fiber Bragg grating (FBG) technology are introduced in this paper. The fundamentals of new-style FBG sensing technology, including the photorefractive effect of FBG, the physical formation, and the relation between optical properties and grating parameters, are investigated. The plaster, encapsulation and distribution planning of FBG sensor (FBGS), which is used to monitor heavy duty mechanical equipment under abominable environment and extreme conditions, are also studied. In addition, theoretical and experimental researches on the strain, temperature, displacement, and stress transmission characteristics between FBGS and detection interface are presented. The principle and method for temperature compensation in non-uniformity temperature field are described in detail as well. Comparing with the traditional sensing monitoring techniques, the application of FBGS technology on digital monitoring and diagnosis for heavy duty mechanical equipment has a number of significant technical advantages and will make a new breakthrough in this field.