电磁流量计手操器的设计

Design of the Handheld Terminal of Electromagnetic Flowmeter(EMF)

论述了HART协议及其在现场仪表中的应用 ,介绍了手操器的发展及工作原理 ,描述了所设计的基于HART协议的电磁流量计手操器的硬件结构、原理及软件功能 ,并在实践中得到了成功的应用。

The HART protocol and its application in field instruments are described. The operational principle and development of the handheld terminal are introduced. The structure and principle of hardware and software functions of HART based handheld terminal of electromangnetic flowmeter are presented. The design has been used successfully in practical application.