光纤Bragg光栅传感技术在桥梁预应力监测中的应用研究 |
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引用本文: | 梁磊,姜德生,周雪芳,南秋明. 光纤Bragg光栅传感技术在桥梁预应力监测中的应用研究[J]. 北京工商大学学报(自然科学版), 2003, 21(2): 50-52,55 |
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作者姓名: | 梁磊 姜德生 周雪芳 南秋明 |
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作者单位: | 武汉理工大学,光纤传感技术中心,湖北,武汉,430070 |
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基金项目: | 国家自然科学基金资助项目(50179029),国家博士点基金资助项目(20010497003) |
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摘 要: | ![]() 针对桥梁预应力检测的问题,提出了采用光纤Bragg光栅(FBG)传感技术进行监测的新方案,分析了光纤Bragg光栅传感器的传感原理,进行了室内、工程现场与常规的电测技术的对比试验.结果表明:光纤Bragg光栅传感器比电检测系统传感器具有更高精度,能绝对数值测量,抗干扰能力强,结构简单,长期稳定性高,实现对工程结构的实时、在线监测.该技术在土木工程界具有广泛的应用前景.
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关 键 词: | 光纤Bragg光栅传感 粘贴式传感器 预应力 |
文章编号: | 1671-1513(2003)02-0050-03 |
STUDY ON THE APPLICATION OF FBG SENSOR FOR PRESTRESS MONITORING |
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Abstract: | ![]() Contraposed to tradition detection for prestress, a kind of stickup Fiber optic Bragg (FBG) sensor is adopted to monitor the prestress in this paper. At the same time, based on the basic theory of the fiber optical Bragg sensor (FBG), with the compared experiment of the FBG senor and the common electricity sensor stuck on the anchor, the result shown that the FBG sensors have a high measurement precision lever?good anti interference ability and long tern stability, simple structure and it can realize a real time and on line monitoring?It has an extensive foreground in the civil engineering. |
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Keywords: | Fiber Bragg grating sensor stickup sensor prestress |
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