论文部分内容阅读
(一)结构原理差压变送器是将两个取压点的压力差,变换成统一仪表信号的一种工业自动化仪表。差压变送器(以DDZ-Ⅲ型差压变送器为例)的结构如图1所示。差压变送器包括两大部分:测量部分与转换部分.这种变送器是根据力平衡原理工作的.高压室与低压室的压力作用于膜盒的两侧,在膜盒的连接片处产生一个集中力,通过密封膜片与主打杆的支点
(A) the principle of structure Differential pressure transmitter is the pressure difference between the two points to take pressure, into a unified instrument signal an industrial automation instrumentation. Differential pressure transmitter (DDZ-Ⅲ type differential pressure transmitter, for example) the structure shown in Figure 1. Differential pressure transmitter consists of two parts: the measuring part and the conversion part.This transmitter is based on the principle of force balance.High pressure chamber and low pressure chamber pressure on both sides of the diaphragm, in the diaphragm connecting piece Produce a concentrated force at the fulcrum through the sealing diaphragm and the main lever