TERMICS热电偶产品介绍
热电偶基本上由任意两根异种金属线组成,一端机械连接,称为热接点; 另一端(或冷端)处于已知参考温度(通常为 0°C),该温度低于热端的温度。
当热接点被加热时,会产生通常与温度成正比的电动势。 温度/电压关系是可重复的。
优点
任何一对导体都可以用作热电偶,这就是选择满足以下要求的合金并使其标准化的原因:
每℃排放量高
良好的稳定性和重复性
良好的机械性能
低成本
冶金纯度
温度/fem特性尽可能呈线性
以下是最常见的工业热电偶
B型 : (Pt 30% Rh / Pt 6% Rh)
E型 : (Chromel / Constantan)
J型 : (Iron / Constantan)
K型 : (Chromel / Alumel)
S型 : (Pt 10% Rh / Platinum)
R型 : ( Pt 13% Rh / Platinum)
T型 : (Copper / Constantan)
N型 : (Nicrosil / Nisil)
A thermocouple basically consists of any two dissimilar metal wires mechanically joined at one end, called the hot junction; the other end – or cold junction – is at a known reference temperature (usually 0°C), which is lower than the temperature of the hot junction.
When the hot junction is heated, this generates an electromotive force that is normally proportional to the temperature. The temperature/voltage relationship is repeatable.
BENEFITS
Potentially any pair of conductors can be used as a thermocouple, which is why alloys meeting the following requirements have been selected and standardised:
high emission per °C
good stability and repeatability
good mechanical properties
low cost
metallurgical purity
temperature/fem characteristic as linear as possible
Here are the most common industrial thermocouples
Type B : (Pt 30% Rh / Pt 6% Rh)
Type E : (Chromel / Constantan)
Type J : (Iron / Constantan)
Type K : (Chromel / Alumel)
Type S : (Pt 10% Rh / Platinum)
Type R : ( Pt 13% Rh / Platinum)
Type T : (Copper / Constantan)
Type N : (Nicrosil / Nisil)
TERMICS热电偶常用型号:
TERMICS 013289 T/R Pt100-CL.B-3fili
TERMICS THERMOCOUPLES NEW + ORIGINAL+ ONE YEAR WARRANTY
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TERMICS热电偶013289介绍