铁道标准设计2018，Vol.62Issue(5)：76-81,6.DOI:10.13238/j.issn.1004-2954.201705250005
内嵌预压式大量程光纤光栅智能钢绞线的标定试验
Calibration Experiment of Large Range Intelligent Steel Strand with FBG Sensor Pre-pressed and Embedded in Groove
摘要
Abstract
The large range intelligent steel strand with FBG sensor prepressing embedded in groove solves the key difficult problem of insufficient FBG sensor monitoring range. In order to ensure the measuring precision of FBG Intelligent steel strand, the main sensing performance indexes of FBG sensor are analyzed and tested by theoretical analysis and experimental calibration. And the differences in theoretical and experimental sensitivity of FBG sensor are analyzed. The test results show that the sensing performance of FBG sensor satisfies the engineering requirements,the test strain sensitivity Kεis not less than 1.17 pm/με,the hysteresis is ≤1.5%,the linearity is≤1%,the repeatability error is≤2.5%and the total accuracy is ≤3%.关键词
智能钢绞线/光纤光栅传感器/标定试验/传感性能Key words
Intelligent steel strand/FBG sensor/Calibration test/Sensing performance分类
矿业与冶金引用本文复制引用
覃荷瑛,张贺丽,沈全喜,朱万旭..内嵌预压式大量程光纤光栅智能钢绞线的标定试验[J].铁道标准设计,2018,62(5):76-81,6.基金项目
国家自然科学基金项目(41272358) （41272358）
广西壮族自治区科技计划项目(桂科AD16380017) （桂科AD16380017）
