液压比例电磁阀测试平台电控系统的设计

Design of Electronic Control System for Hydraulic Proportional Solenoid Valve Test

针对液压比例电磁阀耐压特性、密封特性和稳态压力特性等性能指标的高精度检测,该文自主设计了一种自动化水平很高的电磁阀性能检测平台。其核心是以PLC控制器和触摸屏组合,将动力单元、油路集成块、测试阀安装阀板等各个元件作为控制对象,采用输入输出模块通道,构成一个开放式结构的监督计算机控制系统,实现数据测量预处理、传感器线性化处理及非线性补偿、标度变换、越限报警处理、数字控制器工程实现等功能,满足对比例电磁阀检测的控制要求。文中详述了测试平台电控系统的构成,工作原理和各部分功能的实现。

For hydraulic proportional solenoid valve pressure,sealing properties and steady pressure characteristic per- formance indexes sueh as high precision detection,independent design a high level of automation solenoid valve per- formanee testing platform. Its core based on PLC controller and touch screen,power units,hydraulic integrated block, test valve installation disc,and other components as control object,the input and output module,a supervisory com- puter control system,an open structure to realize data preprocessing,sensor linearization and nonlinear compensation, scale transform,the limit alarm function processing engineering,digital controller,control of the proportional solenoid valve testing requirements. The article details the test plaffnrm of electronic control system,work principle and the realization of the function of each part.