FBG应力传感解调技术及装置研究  

Research on FBG Stress Sensing Demodulation Technology and Device

作　　者：李忠奎 李迎喜 Li Zhongkui;Li Yingxi(China Coal Research Institute,Beijing 100013,China;Engineering Research Center of Coal Mines Emergency Technology Equipment,Beijing 100013,China;Beijing Mine Safety Engineering Technology Research Center,Beijing 100013,China;Shanxi Tiandi Wangpo Coal Mining Co.,Ltd.,Jincheng 048021,China)

机构地区：[1]煤炭科学技术研究院有限公司,北京100013 [2]煤矿应急避险技术装备工程研究中心,北京100013 [3]北京市煤矿安全工程技术研究中心,北京100013 [4]山西天地王坡煤业有限公司,山西晋城048021

出　　处：《煤矿机械》2023年第12期64-67,共4页Coal Mine Machinery

基　　金：天地科技股份有限公司科技创新创业资金专项项目面上项目(2022-2-TD-MS003)。

摘　　要：由于光纤布拉格光栅(FBG)具有良好的可靠性、稳定性、抗干扰性和本质安全,非常适合煤矿瓦斯环境应用,故研发了基于煤矿金属锚杆的FBG应力传感监测系统,重点对该系统的核心设备光栅应力传感解调装置进行了设计研究。通过FBG测量应变原理研究和可调谐F-P滤波器法解调技术研究、对解调装置硬件电路的设计和软件程序的设计,研发了FBG锚杆应力专用解调装置,最后通过实际的FBG应力传感器实验测试,验证了该解调装置的准确性和实用性。Since fiber Bragg grating(FBG)has good reliability,stability,anti-interference and intrinsic safety,which is very suitable for the application of coal mine gas environment,a FBG stress sensing monitoring system based on metal bolt in coal mine was developed.It focuses on the design and research of the core equipment of the system,grating stress sensing demodulation device.Through the study of strain measurement principle of FBG and the study of demodulation technology of tunable F-P filter,through the design of hardware circuit and software program of demodulation device,the special FBG bolt stress demodulation device was developed.Finally,the accuracy and practicability of the demodulation device were verified by the actual experimental test of FBG stress sensor.

关 键 词：FBG 分布式 应力传感技术 F-P滤波器 传感解调技术 

分 类 号：TD76[矿业工程—矿井通风与安全]