起重运输机械Issue(5)：44-47,4.
桥式起重机模型挠度的光纤Bragg光栅试验研究
Experiment research on using optical fiber Bragg grating to measure deflection of bridge crane model
摘要
Abstract
The paper describes a real-time online monitoring model for deflection of main girder of bridge crane with fiber Bragg grating. The fiber Bragg grating is evenly affixed on the main girder of the bridge crane and optical connection is achieved through input and output optical fiber and signal processor unit. The trolley suspended on the main girder causes deflection, and the main girder causes strain of fiber Bragg grating affixed on its lower surface, that is, displacement of wavelength of sensing Bragg grating. Deflection value is calculated repeatedly with displacement value of central wavelength obtained by demodulator to obtain relation between wavelength and deflection.关键词
桥式起重机/主梁/挠度/光纤Bmgg光栅/检测Key words
bridge crane/ main girder/ deflection/ fiber Bragg grating / measurement分类
信息技术与安全科学引用本文复制引用
黄代民,齐凯,王新华..桥式起重机模型挠度的光纤Bragg光栅试验研究[J].起重运输机械,2011,(5):44-47,4.基金项目
国家科技计划支持项目《基广光纤传感技术的起重机械健康监测系统研究》(项目编号:2009BAK58B02) （项目编号:2009BAK58B02）
