论文部分内容阅读
一、前言差压和压力变送器是自动化仪表的重要组成部分,即使在当代以微机控制为主的调节系统中,变送器作为将被测工艺参数,如流量、压力、液位等转换为标准信号的现场仪表仍是不可缺少的。随着微电子技术和自动控制技术的不断发展,许多仪表制造厂家相继研制了新型差压和压力变送器。附表列举了国外有代表性的差压和压力变送器部分新产品。
I. Introduction Differential pressure and pressure transmitter is an important part of automation instruments, even in contemporary control system with microcomputer-based control, the transmitter as the measured process parameters, such as flow, pressure, liquid level conversion Field instruments for standard signals are still indispensable. With the continuous development of microelectronic technology and automatic control technology, many instrument manufacturers have developed a new type of differential pressure and pressure transmitter. Schedule lists a representative of the differential pressure transmitter and some new products.