Device of Calibration of Thermocouple and Resistance Thermometer

The intelligent control algorithm based on PID was introduced, and it efficiently improved the dynamic quality of temperature of oven with long pure time delay process and bit intermittent interference. The unique method of cold junction compensation reduces the error brought by the traditional compesation. The referrence function is conveniently used to convert each other between temperature and voltage. Owing to the replacement of calibrating device and automatically successive calibration, the efficiency and the quality of inspection are enhanced.