低功耗超声热能表的实验研究  

Development of a low-power consumption ultrasonic heat meter

作　　者：杨松迎[1] 梁国伟[1] 赵伟国[1] 黄震威[1] 

机构地区：[1]中国计量学院计量测试工程学院,浙江杭州310018

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

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.

关 键 词：热能表 低功耗 超声波 

分 类 号：TB937[一般工业技术—计量学]