Scope of application of the digital thermometer

Digital thermometer generally adopts imported chip assembly, has high precision, high stability, error & le; 0. Within 5%, power supply, micro power consumption, stainless steel shell, protection strong, beautiful and delicate, etc. Digital thermometer imported high-precision, low temperature drift, ultra low power integrated circuits and wide temperature type liquid crystal display, built-in high-energy battery continuous work & ge; 5 years without power supply cable, it is a kind of high precision, good stability and strong applicability of new field temperature display, widely used in various industrial and mining enterprises. Temperature for our daily production and life in real-time access to physical quantities, but it is invisible, just by feeling can only feel about temperature, although the traditional pointer thermometer can indicate the temperature, but the precision is low, use convenient enough, show not intuitive, the emergence of digital thermometer can let people intuitively understand how much he'd like to know what the temperature is. Digital thermometer USES the temperature sensitive element is the temperature sensor ( Such as platinum resistance, thermocouple, semiconductor, thermistor, etc. ) Would change, the change of temperature into electrical signals, such as the change of the voltage and current, the temperature change and the change of the electrical signal has a certain relationship, such as linear relationship, the curve of a certain relationship, and so on, the electrical signal can be used in adc circuit that AD conversion circuit converts analog signals to digital signals, the digital signal to send to processing unit, such as SCM and PC, processing unit through internal software calculation will be linked to the digital signal and temperature, temperature can be displayed values, such as 25. 0 degrees Celsius, and then through the display unit, such as the LED, LCD or computer screen display observation to the person. This completes the basic temperature measurement functions of the digital thermometer. Digital thermometer according to different use of sensors, the AD conversion circuit, and the different processing units, its accuracy, stability, temperature range has difference, this is about to choose according to actual situation conform to the specifications of the digital thermometer. Digital thermometer has a handheld, plate mounted, and medical small volume and so on.