基于18B20型温度传感器检定系统的研究  

Study on Temperature Sensor Verification System Based on 18B20

作　　者：武春爱[1] 王硕飞[1] 蒋涛[1] 刘宇[1] WU Chun-ai;WANG Shuo-fei;JIANG Tao;LIUYu(Hebei Provincial Meteorological Technical Equipment Center,Hebei,Shijiazhuang 050021,China)

机构地区：[1]河北省气象技术装备中心,河北石家庄050021

出　　处：《计量学报》2020年第S01期96-99,共4页Acta Metrologica Sinica

摘　　要：设计一种可以用于大规模多点温度测量的巡回检测系统,实现90路温度传感器的检定。该系统采用的是RS-232串行通讯的标准,通过下位机(单片机)进行现场的温度采集,每3 s采集1次数据,每次采集3组温度,实现温度自动检定,通过串口与标准温度计连接,与标准温度计比较,自动计算并判别温度数据超差的传感器,并自动生成检定证书和检定结果通知书。通过软件设计和硬件连接实现18B20型温度传感器的检定工作。A circuit detection system which can be used for large-scale multi-purpose temperature measurement to realize the calibration of 90 channels temperature sensor is designed.RS-232 serial communication standard is adopted in the system,the temperature data are collected on the spot by the lower computer(single chip microcomputer),collects three groups of temperature every three seconds,realizes the automatic verification of temperature,and compares with the standard thermometer through the serial port,calculates and distinguishes the temperature data automatically.Grid sensor,and automatically generate verification certificates and verification results notice.Through software design and hardware connection,the calibration of regional automatic weather station temperature sensor is realized.

关 键 词：计量学 温度传感器 标准温度计 检定 

分 类 号：TB942[一般工业技术—计量学]