基于LabVIEW的电液伺服阀测试系统设计与实现

为了解决电液伺服阀测试中手动测试效率低下、误差率高的现状,开发了一种基于LabVIEW图形编程语言的自动测试系统;系统结合NI PCI-6232板卡,用LabVIEW软件实现了电液伺服阀的静态及动态特性的自动测试,系统具有数据采集、处理及实时显示、数据保存等功能;对空载流量特性、零位泄漏特性、压力特性等进行了实验测试,并对测试结果进行了分析,各测试数据在伺服阀允许的误差范围内;实验结果表明测试系统运行良好、数据采集及处理可靠有效。

Design and Realization of Testing System of Servo Valve Based on Virtual Instrument

In order to solve the problem of lower efficiency and high error rate of the manual testing during the electro-hydraulic servo valve testing,a CAT(computer assistant test) system of electro-hydraulic servo valve based on LabVIEW was designed and developed in this paper.Automation testing of both static and dynamic characteristics of electro-hydraulic servo valve was realized based on LABVIEW virtual instruments graphical programming.The CAT testing system designed is efficient in data acquiring,processing,the real-time exhibiting and preserving.Experiment of no-load flow characteristics,zero leakage characteristics and Pressure characteristics have been done,testing results was analyzed,and all of the testing data is in the range of permissible error.The experiment results indicate a rapid,reliable,stable and well-functioned measurement system.