mtseo2022

基本介绍
安徽天康压力变送器是工业实践中最为常用的一种传感器，其广泛应用于各种工业自控环境，涉及水利水电、铁路交通、智能建筑、生产自控、航空航天、军工、石化、油井、电力、船舶、机床、管道等众多行业。
安徽天康压力变送器有电动式和气动式两大类。电动式的统一输出信号为0～10mA、4～20mA或1～5V等直流电信号。气动式的统一输出信号为20～100Pa的气体压力。
压力变送器按不同的转换原理可分为力(力矩)平衡式、电容式、电感式、应变式和频率式等，下面简单介绍几种压力(差压)变送器的原理、结构、使用、检修和校验等知识。
压力变送器的主要作用把压力信号传到电子设备，进而在计算机显示压力其原理大致是：将水压这种压力的力学信号转变成电流（4-20mA）这样的电子信号压力和电压或电流大小成线性关系，一般是正比关系。所以，变送器输出的电压或电流随压力增大而增大由此得出一个压力和电压或电流的关系式压力变送器的被测介质的两种压力通入高、低两压力室，低压室压力采用大气压或真空，作用在δ元（即敏感元件）的两侧隔离膜片上，通过隔离片和元件内的填充液传送到测量膜片两侧。
压力变送器是由测量膜片与两侧绝缘片上的电极各组成一个电容器。当两侧压力不一致时，致使测量膜片产生位移，其位移量和压力差成正比，故两侧电容量就不等，通过振荡和解调环节。

更多：安徽天康压力变送器
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