多点粘贴式应变测量系统在线校准技术研究  

Research on Metrology Calibration Technology for the Multi-points Pasted Strain-gauges System On-line

作　　者：周宁 冯建民[2] 宋昊[1] 尧建平[2] 赵启迪 张慧君[1] 黄晓龙[2] 尹伟[2] 高战朋 武军 于翀 ZHOU Ning;FENG Jianmin;SONG Hao;YAO Jianping;ZHAO Qidi;ZHANG Huijun;HUANG Xiaolong;YIN Wei;GAO Zhanpeng;WU Jun;YU Chong(Changcheng Institute of Metrology&Measurement,AVIC,Beijing 100095,China;Aircraft Strength Research Institute of China,Xi’an,Shaanxi 710065,China;Shanghai Aircraft Airworthiness Certification Center of CAAC,Shanghai 200232,China)

机构地区：[1]航空工业北京长城计量测试技术研究所,北京100095 [2]中国飞机强度研究所,陕西西安710065 [3]中国民用航空上海航空器适航审定中心,上海200232

出　　处：《计量学报》2025年第2期204-212,共9页Acta Metrologica Sinica

摘　　要：在大型客机全机结构静强度试验中,针对多点粘贴式应变测量系统的在线校准问题,提出了通过降低敏感元件分散性建立伪溯源链的技术思路,开展了初步研究并将光纤和应变片的灵敏度分散性分别降低到1%和2.8%。研制了应变标准源,比对光纤、应变片和散斑3种应变测量方式的精度及其在线溯源方法,发现了借助高精度非接触式应变测量手段和低分散性的应变敏感元件特性建立真溯源链的技术途径。针对海量粘贴式应变敏感元件配套电路通道,研发了自动化的校准检测装置,总体效率提升10倍以上。In the static strength test of the whole structure of a large passenger aircraft,a technical idea of establishing a pseudo-traceability chain by reducing the dispersion of sensitive components was proposed to address the on-line calibration problem of multi-point adhesive strain measurement system.The tentative research was developed,and an improvement was got on the drop of dispersion to 1%and 2.8%separately for FBG and metal strain-gauges.To research and develop a strain standard,and to study measurement results and their tracing methods of FBG,strain gauge and photogrammetry,a practical way was found at last.That can build a true-traceability chain for pasted strain-gauge sensors by non-touch instrument with high precision,in addition to the low dispersion of strain sensors.It could be expected to operate calibration-on-line at multi-point strain gauge site.Moreover,a new kind of automatic calibration equipment was developed for large-scall signal channels of pasted strain-gauge sensors,and total efficiency was raised to 10 times.

关 键 词：应变测量 在线校准 溯源方法 粘贴式应变传感器 自动校准 电阻应变片 光纤光栅传感器 

分 类 号：TB931[一般工业技术—计量学]