本实验中的温度传感器采用了热敏电阻，热敏电阻是一种对热敏感的电阻元件，一般用半导体材料做成，可以分为负温度系数热敏电阻NTC（Negative Temperature coefficient Thermistor）和正温度系数热敏电阻PTC（Positive Temperature Coefficient Thermistor），临界温度系数热敏电阻CTR（Critical Temperature Resistor）三种，本实验用的是负温度系数热敏电阻NTC，NTC通常是一种氧化物的复合烧结体，特别适合于之间的温度测量，它的电阻值随着温度的升高而减小，其经验公式为：，式中，R0是在25时或其他参考温度时的电阻，是热力学温度（K），B称为材料的特征温度，其值与温度有关，主要用于温度测量。-Experiment of the temperature sensor adopts thermistor, the thermistor is a kind of thermal sensitive resistor element, generally with the semiconductor material, can be divided into negative temperature coefficient thermistor NTC ( Negative Temperature coefficient Thermistor ) and the positive temperature coefficient thermistor PTC ( Positive Temperature Coefficient Thermistor ), critical temperature coefficient thermistor CTR ( Critical Temperature Resistor ) three, the test was negative temperature coefficient thermistor NTC, NTC is usually an oxide sintered body, particularly suitable for the temperature measurement, the resistance decreases with increasing temperature, the experience formula is:, type, R0 is in the 25or other reference temperature resistance, is the thermodynamic temperature ( K ), B called the features of material temperature, its value and temperature, mainly used for temperature measurement.