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Why is a reference temperature necessary when using thermocouples?
Wiki User
∙ 11y ago
"Since the EMF generated by thermocouple circuits is a function of the difference in temperatures between the measuring junction and the reference junction, it is important that the reference junction be maintained at a constant, known temperature. This can be accomplished by (1) a temperature controlled oven, (2) an ice bath, or (3) an electrical means of simulating a known temperature."
Reference Quote from National Plastic Heater (http://www.nphheaters.com/technical/thermo_letter.htm)
Wiki User
∙ 11y ago
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to guarantee the ice is at 0°C
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By using the "Reference" hyperlink in the left navigation bar
