光纤Bragg光栅锚杆应力应变监测系统  

Stress-strain monitoring system of fiber bragg grating sensing for mining anchor

作　　者：柴敬[1] 兰曙光[1] 李继平 李毅[1] 刘金瑄[1] 

机构地区：[1]西安科技大学能源学院,陕西西安710054 [2]宁夏煤矿设计研究院,宁夏银川750021

出　　处：《西安科技大学学报》2005年第1期1-4,共4页Journal of Xi’an University of Science and Technology

基　　金：国家自然科学基金(50374055);陕西省重点实验室科研项目(02JS43).

摘　　要：锚杆是矿山巷道的主要支护形式之一,现有锚杆支护质量检测方法无法进行远程监控、不能实现全过程监测,本文提出了采用光纤Bragg光栅传感技术进行锚杆支护质量监测的新方法。介绍了光纤Bragg光栅监测系统的工作原理及其构成,实验系统由3个Bragg光栅组成阵列,将其粘贴在长度0.6m的金属锚杆杆体表面,进行锚杆受力的检测以及与电测技术的实验室对比试验。结果表明,光纤Bragg光栅传感器具有高的测量精度,结构简单,可以实现在线实时监测。The existingd quality etection sensing of anchor support that is one of support forms of mining roadway, can't realize the control of quality testing on long-range and monitor the whole course. A new method with optical fiber grating sensing is put forward. The principle and components of the monitoring system of the optical fiber sensing for the anchor are introduced. The set of three FBG strain sensors forms a sensor array. The array was bonded onto a surface of the body in the 0.6m long metal anchor. The result of the experiment obtained using the FBG sensor and electrical strain gauges indicated that the optical fiber grating sensing is of accurate measurements of strains, simple structure, and so, it is possible to achieve online real-time monitoring.

关 键 词：光纤BRAGG光栅 监测系统 应力应变 质量检测方法 支护质量监测 在线实时监测 全过程监测 支护形式 矿山巷道 远程监控 锚杆支护 传感技术 工作原理 实验系统 金属锚杆 对比试验 电测技术 锚杆受力 测量精度 体表面 实验室 

分 类 号：TD76[矿业工程—矿井通风与安全] TN253[电子电信—物理电子学]