本文对用于汽车水温传感器的PTC热敏电阻元件的工作状态进行了实验研究；
In actual circuits, the PTC thermistors used in the automobile water temperature senor is operated in the non-zero power state.
热敏电阻是一种半导体元件，它的电阻随温度而变化。
Thermistors are semiconductor devices whose resistance varies with temperature.
本文介绍了采用负温度系数热敏电阻作为温度传感元件的冷库温度自动监控仪的电路设计及其工作原理。
This paper presents the working principle and electronic circuits of an automatic temperature monitor for refrigerating storage applications with the NTC thermistor as its sensing element.
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