煤层底板突水监测预警光纤应变传感器的研制

宁殿艳

宁殿艳. 煤层底板突水监测预警光纤应变传感器的研制[J]. 应用光学, 2013, 34(4): 718-721.
引用本文: 宁殿艳. 煤层底板突水监测预警光纤应变传感器的研制[J]. 应用光学, 2013, 34(4): 718-721.
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NING Dian-yan. Development of monitoring and early warning fiber sensor of water inrush from coal steam floor[J]. Journal of Applied Optics, 2013, 34(4): 718-721.
Citation: NING Dian-yan. Development of monitoring and early warning fiber sensor of water inrush from coal steam floor[J]. Journal of Applied Optics, 2013, 34(4): 718-721.
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煤层底板突水监测预警光纤应变传感器的研制

  • 中煤科工集团西安研究院,陕西 西安710054

详细信息
    通讯作者:

    宁殿艳（1980-），女，陕西靖边人，工程师，主要从事物探仪器及煤矿自动化技术研究工作。 Email：ningdianyan@cctegxian.com

  • 中图分类号: TN254

Development of monitoring and early warning fiber sensor of water inrush from coal steam floor

  • Xi-an Research Institute,China Coal Technology and Engineering Group Corporation Ltd.,Xi-an 710054,China

摘要

    摘要
  • 摘要: 针对煤层底板突水监测预警系统对应变传感器的特殊要求，研制了新型光纤光栅三分量应变传感器。三分量应变传感器采用内置温度补偿芯片的温度补偿方法，通过将3个应力芯片按一定角度放置的封装工艺研制而成。对所研制的光纤光栅应变传感器进行了温度特性试验、系统基本性能指标试验、疲劳耐久性试验等，试验结果表明：所研制的传感器在使用温度0℃～40℃内，灵敏系数为1.23 pm/，应变量程为1 000 ；横向效应为0.39%，机械滞后为1.18 ，蠕变为1.53 ，线性度为0.13%，重复性为0.16%，工作性能满足设计要求。经过煤层底板突水监测工程实例，验证了新型光纤光栅应变传感器均能准确感应煤层底板应变信息，可对监测点80 m范围内进行预警。
    Abstract: Aiming at the the special requirement of water inrush from coal steam floor monitoring and early warning system on stress sensor, according to the fiber Bragg grating sensing technology, the new fiber stress sensor is developed. The fundamental properties, service temperature range and fatigue durability of sensor system are tested. In 0 C ～ 40 C, the sensitivity coefficient of developed sensor is 1.23 pm/, the strain range is 1 000 , the transverse effect is 0.39 %, the mechanical hysteresis is 1.18 , the creep is 1.53 , the linearity is 0.13 %, the repeatability is 0.16 %, and the performance meets the design requirements. Results show that the new fiber sensor can fully satisfy the requirement of data acquisition of the real-time monitoring and early warring system under the condition of water inrush. Through the monitoring and early warring experiment on the mining face 9 028, the practicality and efficiency of new fiber sensor which used for the water inrush from coal steam floor monitoring and early warning system are able to be carried out within the range of 80 m from the monitoring points.
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  • 刊出日期:  2013-07-14

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