利用物质各种物理性质随温度变化的规律把温度转换为电量的传感器。这些呈现规律性变化的物理性质主要有体。温度传感器是温度测量仪表的核心部分，品种繁多。按测量方式可分为接触式和非接触式两大类，按照传感器材料及电子元件特性分为热电阻和热电偶两类。

-Use of materials with various physical properties of the variation of temperature the temperature sensor is converted to electricity. The physical properties of regular changes showing the main body. Temperature sensor is the core of the temperature measuring instruments, wide variety. By measurement of contact and can be divided into two major categories of non-contact, according to characteristics of the sensor materials and electronic components into thermal resistance and thermocouple types.