摘要
应用BOTDR检测技术对用于结构物健康监测的光纤变形检出特性进行了试验研究,包括光纤锥重拉伸试验和光纤压缩与拉张试验。通过试验,分析了光纤应变区长度对检测结果的影响,确定了光纤应变检测段长度的选择区间,验证了BOTDR检测光纤压应变和张应变的有效性。
An experimental study is performed on the measuring characteristics of BOTDR for structural health monitoring, including dead weight tension test and optical fiber compression-tension test. Based on the experimental results, the effect of optical fiber strain length on measuring results, is analyzed the selection interval for the measuring length of optical fiber strain determined, and the effectiveness of BOTDR for monitoring optical fiber compressive and tensile strains verified.
出处
《土木工程学报》
EI
CSCD
北大核心
2005年第8期56-60,73,共6页
China Civil Engineering Journal
关键词
BOTDR
光纤
拉伸和压缩应变
检出特性
BOTDR
.optical fiber
tensile and compressible strain
measuring characteristics
