谈技术变革中的定位器  

Talk about Technological Change about the Locator

作　　者：王建平 徐强 

机构地区：[1]内蒙古伊泰煤制油有限责任公司仪表车间,内蒙古鄂尔多斯017000

出　　处：《内蒙古石油化工》2014年第1期-,共3页Inner Mongolia Petrochemical Industry

摘　　要：阀门定位器是气动调节阀的关键附件之一,其作用是把调节设备输出的信号变成驱动调节阀动作的气信号,提高阀门的位置控制精度。本文主要从定位器结构原理及安装方面阐述阀门定位器智能化发展方向,HART协议兼容模拟信号和数字信号,使得基于HART协议的智能阀门定位器具有更大的开发前景。Valve positioner is one of the key accessory of the pneumatic control valve.Its fuction is to turn the output signal that controls the device into the gas signal in order to enhance the control precision. This article mainly represents intelligent valve positioner development direction from the locator structure principle and installation.HART protocol compatible with analog signals and digital signals makes the intelligent valve positioner based on HART protocol have more development prospect.

关 键 词：喷嘴挡板 气动放大器 HART协议 PWM 压电阀 

分 类 号：TH703.65[机械工程—仪器科学与技术]