How electronic thermometer works?

Temperature often come into contact with in our daily life and production quantities, but it is invisible, for example, in the hot summer, we just by feeling can only feel about temperature, but don't know the specific range, so, if you want to know the specific temperature, this time we need a thermometer, at home, we are the most commonly used is the electronic thermometer thermometer, so what are the advantages of the electronic thermometer? 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, how it works? Electronic thermometer with 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. General electronic thermometer imported chip assembly of high precision, high stability, error & le; 0. Within 5%, power supply, micro power consumption, stainless steel shell, protection strong, beautiful and delicate, is commonly used thermometer at home.