低功耗超声流量计的研究  

Research on the Low-power Consumption Ultrasonic Flow Meter

作　　者：陈哉衡[1] 赵伟国[1] 黄朝川 章圣意 沈彬彬 陈启 林康为 

机构地区：[1]中国计量学院计量测试工程学院,浙江杭州310018 [2]浙江苍南仪表厂,浙江苍南325800

出　　处：《装备制造技术》2011年第4期47-49,共3页Equipment Manufacturing Technology

基　　金：浙江省创新团队项目(2009R50024);浙江省大学生科技创新活动计划(2009R409022)

摘　　要：针对超声波流量测量中管道结构对测量精度的影响,采用Fluent仿真软件模拟了不同管道中流体的流动状况,对管道内的超声波信号进行了分析和比较,设计了超声波流量传感器,并应用设计的流量传感器,研制了超声波流量积算仪的硬件电路和软件,最终的样机实验结表明,该超声流量计流量误差小于±2%,系统的平均工作电流为35μA。In order to solve the pipeline influence on measurement accuracy,the software Fluent was introduced to simulate the flow condition of the ultrasonic sensor.Through the simulation of different kinds of pipeline,the ultrasonic signal was analyzed and compared.The final form of the pipeline was obtained and the ultrasonic sensor was designed.The hardware circuit and software was designed based on the ultrasonic sensor.The experiments indicate that the error of the flow is less than ±2%,the electric current is about 35 uA in average.

关 键 词：fluent仿真 流量积算仪 低功耗 超声波 MSP430F435 

分 类 号：TB937[一般工业技术—计量学]