Thermocouple vs. Thermometer

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Main Difference

The main difference between Thermocouple and Thermometer is that the Thermocouple is a thermoelectric device and Thermometer is a device to measure temperature.

  • Thermocouple (noun)

    A transducer consisting of two different metals welded together at each end; a voltage is produced that is proportional to the difference in temperature between the two junctions (one of which is normally held at a known temperature)

  • Thermometer (noun)

    An apparatus used to measure temperature.

Oxford Dictionary
  • Thermocouple (noun)

    A thermoelectric couple.

  • Thermometer (noun)

    An instrument for measuring temperature, founded on the principle that changes of temperature in bodies are accompanied by proportional changes in their volumes or dimensions.

Webster Dictionary
  • Thermocouple (noun)

    a kind of thermometer consisting of two wires of different metals that are joined at both ends; one junction is at the temperature to be measured and the other is held at a fixed lower temperature; the current generated in the circuit is proportional to the temperature difference

  • Thermometer (noun)

    measuring instrument for measuring temperature

Princeton's WordNet

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