基于单片机智能电子体温计的设计

Design of an intelligent electronic thermometer based on MCU

用于测量人体体温的传统的水银温度计将因《水俣公约》的生效而被停用,取而代之的是各种电子温度计.国家标准GB/T 21416-2008《医用电子体温计》对医用电子体温计有明确的技术要求,目前市场上能满足要求的医用电子体温计价格普遍较高.为此,设计了一种利用热敏电阻作测温探头,直流电桥作转化电路,C8051F980单片机作处理核心的,可存储记忆测量数据和异常温度报警的廉价医用电子体温计,较好地满足GB/T 21416-2008《医用电子体温计》的技术指标和要求,具有推广价值.

The traditional mercury thermometers used to measure human body temperature will be stopped due to the entry into force of Minamata Convention and replaced by various electronic thermometers.The national standard GB/T 21416-2008 medical electronic thermometer has clear technical requirements for medical electronic thermometer.At present,the price of medical electronic thermometer which can meet the requirements in the market is generally high.Therefore,a kind of low-cost medical electronic thermometer is designed,which uses thermistor as temperature probe,DC bridge as conversion circuit and c8051 f980 MCU as processing core.It can store the measured data and abnormal temperature alarm.,meet the technical specifications and requirements of medical electronic thermometer(GB/T 21416-2008),has the value of popularization.