A thermocouple has a linear sensitivity of 30 ?V/°C, calibrated at a cold junction temperature of 0°C. It is used measure an unknown temperature with the cold junction temperature of 30°C. Find the actual hot junction temperature if the emf generated is 3.0 mV.
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Step 1
First, we need to find the emf generated due to the cold junction temperature (3°C). Since the thermocouple has a linear sensitivity of 30 µV/°C, the emf generated by the cold junction will be: Cold junction emf = Sensitivity × Cold junction temperature Cold Show more…
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