应用比例阀实现压力变化率的控制设计  

Application of Proportional Valves for Control Design of Pressure Change Rate

作　　者：刘朝彤 刘素芳 郭建成 LIU Zhaotong;LIU Sufang;GUO Jiancheng(Taico Pressure-Measuring Technology CO.LTD,Taiyuan 030006,China)

机构地区：[1]太原市太航压力测试科技有限公司,太原030006

出　　处：《计量科学与技术》2020年第12期73-76,共4页Metrology Science and Technology

摘　　要：依据JJG 272—2007《空盒气压表和空盒气压计检定规程》要求,空盒气压表(计)检定过程对升压、降压的变化率有严格的要求,从而对压力发生装置的设计提出要求,即装置应具有压力变化率调节功能。本文针对压力发生装置压力变化率的控制提出技术方案,包括设计模型、驱动电路和PID控制算法。本方案实现了压力发生装置压力变化率的控制,并对测试结果进行了评估。According to the requirements of JJG 272—2007"Aneroid Barometer&Aneroid Barograph",the verification process of aneroid barometer(barograph)has strict requirements on the pressure change rate.Thus,the design of the pressure generating device is required.That is,the device should have the function to adjust the pressure change rate.This paper proposes a technical solution for the control of the pressure rate change of the pressure generating device,including the model design,driving circuit,and the PID control algorithm.The proposed scheme realizes the control of pressure change rate of the pressure generating device and evaluates the test results.

关 键 词：压力变化率 比例阀 硅压阻传感器 

分 类 号：TH823[机械工程—仪器科学与技术]