摘要
根据热能表的基本原理,选择MSP430系列单片机,采用超声流量计与铂电阻测温相结合的方法设计了公称直径为DN15的低功耗超声热能表.按照国家相关标准对该系统进行了检定.结果表明,该超声热能表符合国家2级表标准,系统的平均工作电流为35μA.
Heat meters are used in the field of heating metrology.The measurement principle of heat meters was introduced.Ultrasonic sensors,platinum sensors and the MCU of MSP430 were adopted.The nominal diameter was 15 mm.The system was examined according to relevant national standards.The experiments indicated that the electric current was 35 μA in average.The results show that the system is satisfy under the Chinese national standard of grade Ⅱ.
出处
《中国计量学院学报》
2009年第4期315-319,共5页
Journal of China Jiliang University
关键词
热能表
低功耗
超声波
heat meter
low-power consumption
ultrasonic wave
MSP430F435
作者简介
杨松迎（1984-），男，山东济南人，硕士研究生．主要研究方向为流量计量测试和智能化仪表．
