基于闭环比例积分控制的膜片式电－气转换器的研制

介绍一种采用喷嘴／挡板机构的膜片式电－气转换器，论述了该传感器核心部件的基本结构、电－气转换原理、闭环反馈控制方法及关键电路设计，并对转换器工作状态进行了试验研究。结果表明，该转换器性能**，可广泛应用于工业自动化控制领域。  
Development of Membranaceous Electro-pneumatic Transduccer Based on Close-loop and PI Control Methods
Wu Wenliang , Sun Baoyuan
(Institute of Sensing and Control , Dalian University of Technology , 116024)
Abstract:Instroducing a membranaceous electro-pneumatic transducer that adopts the nozzle-flapper framwork , Illustrating the structure of the core unit , the converting principles , and detail control methods with the key circuits of close-loop and feedback control , then making the experimental research on the working state.It Is proved that the transducer with excellent performance Is promising to be applied In the Industral autocontrol field.
Key words:Electro-pneumatic Transducer ; Nozzle-flapper ; Membrane ; PI Controller