基于虚拟仪器技术的光电测速装置的现场校准系统  

Design of photoelectrical velocity calibration system for falling weight impact test based on LabVIEW

作　　者：刘一[1] 陈云庆[1] 沈意吉[1] 蒋帆 Liu Yi;Chen Yunqing;Shen Yiji;Jiang Fan(Shanghai Institute of Measurement and Testing Technology)

机构地区：[1]上海市计量测试技术研究院

出　　处：《上海计量测试》2020年第5期48-50,共3页Shanghai Measurement and Testing

摘　　要：利用虚拟仪器技术,以光电传感器、数据采集卡、计算机为基础,设计了一种落锤冲击试验测速装置的现场校准系统。编写LabVIEW程序设置采集参数,测量过程中自动记录信号计算脉冲间隔,根据初始化参数修正测量点和校准点之间的测量偏差,在实际测量过程运转良好。An photoelectrical velocity calibration system with photoelectric sensors,data acquisition card and computeris designed to measure instant an eousvelocity based on LabVIEW.The system will record the photoelectric signal automatically upon rising or falling edge,then calculate its pulse width.Through several times measurement,average acceleration is calculated to correct the deviation from the height between standard sensor and device under test.

关 键 词：落锤冲击试验 测速 虚拟仪器 

分 类 号：TH70[机械工程—仪器科学与技术]