| 一种预张拉大标距光纤光栅应变传感器的研究 |
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| 引用本文： | 赵雪峰,宋钢兵,欧进萍.一种预张拉大标距光纤光栅应变传感器的研究[J].光电子．激光,2009,20(5). |
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| 作者姓名： | 赵雪峰 宋钢兵 欧进萍 |
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| 作者单位： | 赵雪峰,ZHAO Xue-feng(大连理工大学土木水利学院,辽宁,大连,116024);宋钢兵,Michael Fernandez,SONG Gang-bing,Michael Fernandez(休斯顿大学机械工程学院,德克萨斯州,休斯顿,77004);欧进萍,OU Jin-ping(大连理工大学土木水利学院,辽宁,大连,116024;哈尔滨工业大学土木工程学院,黑龙江,哈尔滨,150090)
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| 基金项目： | 国家科技支撑计划重点项目，国家自然科学基金 |
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| 摘 要： | 研究开发出一种用于大传感标距测量的新型光纤光栅(FBG)应变传感器,提出一种基于预张拉原理的传感器封装方法.分别开发出传感标距为10 cm与20 cm的大标距FBG应变传感器,预张拉稳定性试验结果表明,传感器内的预张拉水平可以保持在一稳定水平.应用等截面梁标定方法研究了该传感器的应变复敏特性,结果显示,传感器布拉格波长与大标足巨内的平均应变具有非常好的线性关系.应用水浴法研究了该传感器的温度灵敏特性,结果显示,传感器布拉格波长与温度具有非常好的线性关系.最后,通过与小标距裸FBG的对比试验研究其测量大标距内平均应变的性能,结果显示,传感器可以准确测量大标距内的平均应变.
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| 关 键 词： | 光纤光栅(FBG) 应变传感器 大标距 预张拉 |
Research on one kind of long sensing gauge fiber Bragg grating sensor with pretension |
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| Michael Fernandez,ZHAO Xue-feng,SONG Gang-bing,Michael Fernandez,OU Jin-ping.Research on one kind of long sensing gauge fiber Bragg grating sensor with pretension[J].Journal of Optoelectronics·laser,2009,20(5). |
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| Authors: | Michael Fernandez ZHAO Xue-feng SONG Gang-bing Michael Fernandez OU Jin-ping |
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| Affiliation: | 1.School of Civil and Hydraulic Engineering;Dalian University of Technology;Dalian 116024;China;2.School of Mechanical Engineering;University of Houston;Houston 77004 USA;3.School of Civil Engineering;Harbin Institute of Technology;Harbin 150090;China |
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| Abstract: | A novel long gauge strain fiber Bragg grating sensor (LG FBG sensor) has been proposed.The pretension technique and packaging method were proposed and demonstrated.Two kinds of long gauge strain FBG sensors were made,which can measure the average strain in 10 cm gauge and 20 cm gauge,respectively.The calibration test is conducted to obtain the strain and temperature coefficients of the sensor,and the results show that there are good linear relationships between Bragg wavelength and strain and temperature,re... |
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| Keywords: | fiber Bragg grating strain sensor long sensing gauge pretension |
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