在傳統(tǒng)渦街流量計的基礎(chǔ)上,設(shè)計出帶有HART 通訊協(xié)議的多變量渦街流量計。介紹了
HART 協(xié)議規(guī)范，詳細(xì)闡述HART 協(xié)議在多變量渦街流量計中的軟硬件實(shí)現(xiàn)方法，并給出系統(tǒng)設(shè)計結(jié)構(gòu)和部分硬件電路組成。
關(guān)鍵字：HART 協(xié)議，通訊，渦街流量計
Realization of HART protocol in multi-variable vortex flowmeter Ma Yong-cheng Mo De-ju (Information Science and Technology Department, Beijing University of Chemical Technology Beijing, 100029) Abstract：On the basis of traditional vortex flowmeter，a multi-variable vortex flowmeter based on HART communication protocol is designed. The criterion of HART protocol is introduced, and the design method of software and hardware is described for implementing HART protocol communication in multi-variable vortex flowmeter. The structure of system and partial circuit of hardware is present.
Keyword: HART protocol, communication, vortex flowmeter