常用的温度检测元件主要有热电偶、热电阻、热敏电阻等。热电偶主要是利用两种不同金属的热电效应，产生接触电势随温度变化而变化，从而达到测温的目的。-Temperature detection devices commonly used in the main thermocouple, thermal resistance, thermal resistance and so on. Thermocouple is the use of two different metal thermoelectric effect, resulting in exposure to potential changes with temperature, so as to achieve the purpose of temperature measurement.