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thermocouples: 0mv at 0C

Discussion in 'Electronic Basics' started by thomas, Sep 9, 2004.

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  1. thomas

    thomas Guest

    Whey do all types of thermocouples output 0mv at 0C? ...was that a design
    requirement when the T/C alloys were developed?
  2. thomas

    thomas Guest

    Ahhh...that whole ICE POINT reference thing ...duh
  3. andy

    andy Guest

    They don't - they output 0mv when the two parts of the thermocouple are at
    the same temperature. So if one end is at room temp, it will give 0 mv
    when the other end is as well.

    This isn't anything to do with the design - it's just how the underlying
    physics of it works.
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