基于现场总线的多变量变送器

Research and Development of Fieldbus Based Multivariable Transmitter

现场总线技术是未来控制系统的关键技术，基于现场总线技术的多变量变送器是现场总线控制系统的主要智能装置之一．本文以过程工业中广泛使用的流体质量流量测量为对象，研究开发了基于ＨＡＲＴ协议的多变量流量变送器，实现了流量测量的智能集成．现场使用表明，该多变量流量变送器功能强，集成度高，维护方便，较好地体现了现场总线技术的特点和优点．

Fieldbus is the crucial technology of the feature control system, fieldbus based multivariable flowmeter is the main intelligent device of fieldbus control system. This article discussed about the massive flow measurement of fluid,which is extensively used in process industry, developed the HART based multivariable flowmeter, fulfilled the intelligent integration of flow measurement. Industry application demonstrates that the multivariable flow transmitter can reduce the number of instruments and wiring, improve performance, and maximize digital advantages by providing users more information about the process, reflects the characters and advantages of fieldbus.