| 光纤布拉格光栅渗压传感器设计 |
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| 引用本文： | 光纤布拉格光栅渗压传感器设计.光纤布拉格光栅渗压传感器设计[J].山东科学,2017,30(1):64-68. |
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| 作者姓名： | 光纤布拉格光栅渗压传感器设计 |
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| 作者单位： | 1.中海石油（中国）有限公司上海分公司，上海 200335；
2.山东省科学院激光研究所，山东 济南 250014；
3.胜利油田新胜石油物探技术服务有限责任公司，山东 东营257086 |
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| 基金项目： | 国家自然科学基金（61307101）；山东省自主创新及成果转化专项（2014ZZCX04206） |
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| 摘 要： | 为实现对尾矿库的安全渗压实时监测,设计了一种波纹膜片结构封装的光纤布拉格光栅渗压传感器,通过材料及温度光栅双温度补偿,剔除了环境温度的影响。实测结果表明,该光纤光栅传感器量程为0~20 k Pa,压力灵敏度为27.8 pm/k Pa,线性拟合度达到0.999 99,适用于液位小范围变化的高精度检测。在尾矿库浸润线检测中的应用表明,传感器精度高,重复性好。
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| 关 键 词： | 光纤布拉格光栅 高精度 压力传感器 温度补偿 |
| 收稿时间： | 2015-10-14 |
The design of FBG seepage pressure sensor |
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| LI Xiao-fan,ZHAO Qing-chao,Lü Jing-sheng,TANG Liang,WANG Hong-zhong,MA Long.The design of FBG seepage pressure sensor[J].Shandong Science,2017,30(1):64-68. |
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| Authors: | LI Xiao-fan ZHAO Qing-chao Lü Jing-sheng TANG Liang WANG Hong-zhong MA Long |
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| Institution: | 1. CNOOC. Shanghai Co., Ltd., Shanghai 200335, China;
2.Laser Institute, Shandong Academy of Sciences, Jinan 250014, China;
3.Xinsheng Petroleum Exploration Technical Service Co.,Ltd., Shengli Oilfield, Dongying 257086, China |
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| Abstract: | In order to realizing the real time monitoring of the seepage pressure of the tailing pond, a kind of corrugated diaphragm based optical FBG seepage pressure sensor was designed. The influence of the ambient temperature was eliminated by the double temperature compensation of the material and temperature grating. The experimental results show that the pressure measuring range is 0~20 kPa, the pressure sensitivity is 27.8 nm/MPa, the linearity fitted is up to 0. 999 99, which is suitable to high accurate measurement of the liquid level changes within narrow range. The application of the sensor in the detection of saturation line of tailing pond shows that the sensor possesses the advantages of high precision and good repeatability. |
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| Keywords: | FBG sensitivity temperature compensation pressure sensor |
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