Q15 of 46 Page 218

Find the neutral temperature and inversion temperature of copper-iron thermocouple if the reference junction is kept at 0°C. Use the data in table (33.1).


Neutral temperature is given by -



Using table data –






Similarly






Thus, the neutral temperature becomes,






Since, temperatures is in Celsius, the inversion temperature is double the neutral temperature, i.e. 659°C.


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