Study on wheatstone bridge measures a thermistor

Setting up the design experiment of wheatstone bridge measures a thermistor in college experimental physics is activate students' creation consciousness and practicing ability.The fundamental principle and devices of this design experiment are discussed,and the relationship between the effect of resistance value of thermistor and temperature is studied.The experimental results indicate that the wheatstone bridge measures of the resistivity of the thermistor is more accurate,and the thermistor of the kind's material constant under the indoor temperature is close to the true value.