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单词 Thermoelectric thermometer
释义

Thermoelectric thermometer

中文百科

热电偶 Thermocouple

(重定向自Thermoelectric thermometer)
与热电偶连接在一起的多用表显示出摄氏温度。
Diagrama de funcionamiento del termopar.
Reference junction block inside a Fluke CNX t3000 temperature meter. Two white wires connect to a thermistor (embedded in white thermal compound) to measure the reference junctions' temperature.

热电偶英语:Thermocouple)是一种被广泛应用的温度传感器,也被用来将热势差转换为电势差。它的价格低廉、易于更换,且有标准接口,具有很大的温度量程。主要的局限是精度,小于1摄氏度的系统误差通常较难达到。

1821年,德国-爱沙尼亚物理学家托马斯·约翰·塞贝克(德语:Thomas Seebeck)发现任何导体(金属)被施加热梯度时都会产生电压。现在这种现象被称为热电效应或「Seebeck效应」。若要测量这个电压,必须把“热”端连到另一导体上。增加的导体也会经历热梯度,自身也会产生一个电压,并与原来的电压抵消。

英语百科

Thermocouple 热电偶

(重定向自Thermoelectric thermometer)
Thermocouple connected to a multimeter displaying room temperature in °C
Reference junction block inside a Fluke CNX t3000 temperature meter. Two white wires connect to a thermistor (embedded in white thermal compound) to measure the reference junctions' temperature.
Characteristic functions for thermocouples that reach intermediate temperatures, as covered by nickel alloy thermocouple types E,J,K,M,N,T. Also shown are the noble metal alloy type P, and the pure noble metal combinations gold–platinum and platinum–palladium.

A thermocouple is an electrical device consisting of two different conductors forming electrical junctions at differing temperatures. A thermocouple produces a temperature-dependent voltage as a result of the thermoelectric effect, and this voltage can be interpreted to measure temperature. Thermocouples are a widely used type of temperature sensor.

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更新时间:2025/6/17 20:03:35