煤矿分布式光栅阵列应力传感监测技术研究

Research on Distributed Grating Array Stress Sensing Monitoring Technology in Coal Mine

针对目前电子式矿压监测设备存在的受干扰数据失真、传输线缆多、供电距离近等问题,以及光纤式矿压监测设备存在的容量小、成本高、有监测盲区等问题,通过分布式光栅阵列应力传感技术、分布式光栅阵列传感复用和网络技术、分布式光栅阵列传感解调技术等关键技术研究,结合矿压理论、光纤通信技术和计算机技术,研发适合煤岩应力测试要求的光栅阵列应力传感装置、光栅阵列传感解调分站,结合监控预警平台软件,形成一套实时远程在线的分布式光栅阵列应力监测系统。

In view of the problems existing in the current electronic mine pressure monitoring equipment,such as distorted interference data,many transmission cables,short power supply distance and so on,and the optical fiber mine pressure monitoring equipment problems of small capacity,high cost,monitoring blind areas and so on,through the research of key technologies such as distributed grating array stress sensing technology,distributed grating array sensing multiplexing and network technology,distributed grating array sensing demodulation technology,combined with the mine pressure theory,optical fiber communication technology and computer technology,developed the grating array stress sensing device and grating array sensing demodulation substation suitable for the requirements of coal and rock stress measurement,combined with the monitoring and early warning platform software,a real-time,remote and online distributed grating array stress monitoring system was formed.