【作者】 邓湘； 彭黎辉； 姚丹亚； 张宝芬；

【Author】 Deng Xiang Peng Lihui Yao Danya Zhang Baofen (Department of Automation,Tsinghua University, Beijing 100084, China)

【机构】 清华大学自动化系；

【摘要】 现场应用的流量变送器目前一般都采用两线制4～20mA环路供电,这就给仪表设计提出了低功耗的要求。文章叙述了基于PIC单片机的两线制低功耗流量显示表的设计方法。对两线制、低功耗流量显示表研制过程中的几个关键技术问题进行了讨论。更多还原

【Abstract】 Flow transducer applied in site has generally the demand of low power because the restriction of two-wire 4-20mA loop power supply. The design of flow measurement display meter with two-wire supply & low power based on PIC microcontroller is described. Several key technique problems in developing of the flow measurement display meter are discussed.更多还原