A thermocouple consists of two wires of dissimilar metals joined together at one end, called the measurement ("hot") junction. The junction between the thermocouple metals and the copper traces/conductor is called the reference ("cold") junction. The other end, where the wires are not joined, is connected to the signal conditioning circuit or voltmeter.
In this video, you will learned the principle of thermocouple, its types and some exercise examples.
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