Aiming at the problems of low automation,long time and insufficient precision in the temperature and temperature rise measurement of Pt 100 and thermistor,this paper studies the resistance value-temperature rela-tionship of Pt 100 and the resistance value change of thermistor-temperature rise relationship,develops a set of temperature calibration method,and designs and builds a temperature calibration system.At the same time,com-bined with the calibration method and calibration requirements,the automatic calibration and data processing pro-gram is developed.The results show that the system can realize automatic operation,improve the calibration effi-ciency and accuracy,meet the high precision calibration requirements of thermometer,and provide a multi-type,multi-temperature point cross-calibration automatic control calibration scheme.
关键词
温度校准/热敏电阻/Pt100/不确定度/自动化
Key words
temperature calibration/thermistor/Pt 100/uncertainty/automation
维普
万方数据