Research On Hydraulic Test System Based On LabVIEW

Measurement and control for electro-hydraulic servo and electro-hydraulic proportional control experiment to one of important research direction of hydraulic test,the existing domestic production for the direction of testing rarely based on virtual instrument technology,so the operator facing the complex structure of the test-bed can not start,and the testing accuracy is low,the whole detection operation process is complex,long working hours and detection do not meet the current needs of test automation.This topic originates from the university laboratory in hydraulic related courses of electro-hydraulic servo valve,electro-hydraulic proportional control the direction of the insufficiency of experiment,in order to meet the current needs of test automation,this issue through the virtual instrument technology to design a more suitable for universities need to experiment--virtual instrument measurement and control for electro-hydraulic servo,electro-hydraulic proportional control experimental station.The experiment platform using CAT technology is a new generation of hydraulic experimental platform,is a set of experimental fluid mechanics,hydraulic components of static,dynamic characteristics test and functional verification of integrated hydraulic test stand.The research on virtual instrument measurement and control for electro-hydraulic servo,electro-hydraulic proportional control experiment platform design,select the appropriate hardware configuration,virtual instrument technology,which is based on LabVIEW experimental platform design of the operating system and all the experiment content,through design,to reduce the experimental cost,save time,become the experimental aspects of high precision experimental station.Characteristics of CAT testing system for electro-hydraulic servo valve characteristic test and electro-hydraulic proportional valve characteristic test two part.Static characteristics of electro-hydraulic servo valve test is mainly to the completion of electro-hydraulic servo valve,flow characteristic,pressure characteristics of leakage characteristic test;dynamic characteristic test is mainly to the completion of electro-hydraulic servo valve frequency response test and step response test.Electro hydraulic proportional valve static characteristic test complete:proportional pressure valve and proportional flow valve control characteristic and static load testing,proportional valve dynamic characteristics of main frequency and step response characteristic test.Servo and proportional control system is mainly to the completion of valve controlled cylinder position control system performance test.