V2EX thermistor

Thermistor

释义 Definition

热敏电阻:一种电阻值会随温度显著变化的电阻元件,常用于温度测量、温度补偿以及电路过流/浪涌保护(如NTC用于抑制上电浪涌,PTC用于自恢复保险保护)。

发音 Pronunciation

/θrmstr/

例句 Examples

The thermistor measures the temperature inside the device.
热敏电阻测量设备内部的温度。

As the ambient temperature rises, the NTC thermistor’s resistance drops, changing the voltage in the sensing circuit and triggering the fan controller.
当环境温度升高时,NTC热敏电阻的阻值下降,使检测电路中的电压发生变化,从而触发风扇控制器。

词源 Etymology

thermistor 是合成词,由 therm-(与“热、温度”有关,源自希腊语 thermē “热”)和 resistor(电阻器)组合而成,字面意思就是“与温度相关的电阻器”。该词在电子工程领域普及,用来区分普通电阻与具有温度敏感特性的电阻元件。

相关词 Related Words

文学与作品 Literary Works

  • The Art of Electronics(Horowitz & Hill,《电子学艺术》):在传感与温度测量电路中讨论热敏电阻的应用。
  • Practical Electronics for Inventors(Paul Scherz & Simon Monk,《发明者实用电子学》):以入门到中级方式介绍热敏电阻与温度检测。
  • Electronic Principles(Albert Malvino 等,《电子学原理》):在基础元件与温度效应章节中提到热敏电阻。
  • Sensors and Actuators(学术期刊《传感器与执行器》系列):多篇文章涉及热敏电阻材料与温度传感应用。
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