新型低功耗电磁流量计设计  

A new low power consumption electromagnetic flowmeter

作　　者：宫通胜[1] 刘铁军[1] 谢代梁[1] 刘洁[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》2013年第3期243-247,共5页Journal of China Jiliang University

基　　金：浙江省重点科技创新团队项目(No.2009R50024);浙江省教育厅项目(No.Y201018818)

摘　　要：提出了一种MSP430单片机的低功耗电磁流量计设计方案,设计了低功耗的模拟信号处理放大电路和励磁电路.软件上采用间歇励磁工作的方法,动态调整采样间隔时间,降低了系统的功耗.试验表明,在休眠时,系统电流小于15μA;工作时,系统电流小于20mA.系统精度可达1%.A low power consumption electromagnetic flowmeter which included the modules of low power consumption analog signal amplifying and processing circuits and exciting output circuits was designed based on MSP430.It used intermittent excitation work on software;and the sampling time interval could be adjusted dynamically,which reduced the power consumption of the system.The experiment shows that the system current is less than 15μA at sleep and less than 20mA at work.The system precision error is less than 1%.

关 键 词：电磁流量计 低功耗 间歇励磁 

分 类 号：TH814.93[机械工程—仪器科学与技术]