高冲击试验测试装置及校准技术研究  

Study on dynamic calibration of high-impact test and measuring system

作　　者：许朝阳 张振海[1] 牛兰杰[2] 李科杰[1] 张大治[3] 宋钱骞 张振山 孙浩琳 XU Zhaoyang;ZHANG Zhenhai;NIU Lanjie;LI Kejie;ZHANG Dazhi;SONG Qianqian;ZHANG Zhenshan;SUN Haolin(Beijing Institute of Technology,Beijing 100081,China;Xi'an Institute of Electromechanical Information Technology,Xi'an 710065,China;Changcheng Institute of Metrology&Measurement,Beijing 100095,China;Beijing Watertek Information Technology Co.,Ltd.,Beijing 100094,China;Beijing High-tech Micro&Nano Technology Development Co.,Ltd.,Beijing 102200,China)

机构地区：[1]北京理工大学,北京100081 [2]西安机电信息技术研究所,西安710065 [3]航空工业北京长城计量测试技术研究所,北京100095 [4]北京旋极信息技术股份有限公司,北京100094 [5]北京海泰微纳科技发展有限公司,北京102200

出　　处：《遥测遥控》2023年第3期69-77,共9页Journal of Telemetry,Tracking and Command

基　　金：科工局国防技术基础项目资助(202020230028);装备预先研究背景项目资助(ZW040202)。

摘　　要：研制出Hopkinson杆(霍普金森杆)高冲击加载装置,搭建起高冲击测试校准系统,基于LabVIEW和Matlab软件开发环境,编写系统控制程序,数据分析与处理程序,以高冲击MEMS加速度传感器为被测对象,开展冲击测试与校准技术研究,解算出传感器冲击灵敏度和频率响应指标。试验结果表明:利用该试验测试装置对冲击传感器进行测试校准,满足传感器主要静态指标测试要求;对传感器频响指标进行测试校准,得到传感器幅频特性和相频特性曲线,满足传感器动态特性测试要求。该Hopkinson杆冲击试验测试校准装置及测控系统能够实现冲击加速度传感器主要静态特性和动态特特指标的测试校准要求,平均灵敏度为0.657548μV/g,不确定度优于4%,幅值线性度偏差≤±5%的工作频带为12.5 kHz。本研究对高冲击试验测试的应用提供一定借鉴和参考。Based on the Hopkinson bar shock test system,the cylindrical projectile is used to hit the elastic long pole.It’s convenient for the controlling of the system to design the single-chip computer control box and the upper computer software.The strain gauge is used to collect the stress wave pulse signal in the elastic long rod.The software is written to complete the test and calibration of the sensor in LabVIEW and Matlab environment,which is used to calculate the sensitivity parameters and frequency response curve calculation of the sensor.The quasi-static performance and dynamic performance of the acceleration sensor should be calibrated to ensure the normal using of the sensor in practice.After experimental verification,the shock calibration system with narrow pulse width signal for MEMS sensor basically meet the design requirements,which have good running condition and available test results,mean sensitivity is 0.657548μV/g,uncertainty of measurement is within 4%.The amplitude linearity bias is less than±5%,and working band is 12.5 kHz.This paper provides a certain reference significance and function for the measurement and calibration of high-impact MEMS acceleration sensors.

关 键 词：霍普金森杆 测试校准 高冲击传感器 灵敏度 频率响应 

分 类 号：TP212.1[自动化与计算机技术—检测技术与自动化装置] TB936[自动化与计算机技术—控制科学与工程]