Thermocouple-multiplex-system


Posted on Dec 20, 2012

To decouple the sensors from the meter amplifier, either a reference junction at ooc or a bucking voltage set at room temperature may be used. The latter method is simpler, but is sensitive to changes in ambient temperature.


Thermocouple-multiplex-system
Click here to download the full size of the above Circuit.

The table above shows the output voltage vs temperature of several common types of thermocouples.




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