Thermocouple

Thermocouple

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Credit: ANDREW LAMBERT PHOTOGRAPHY/SCIENCE PHOTO LIBRARY

Caption: Thermocouple. Gas temperature sensor and its digital meter. Thermocouples work by using two lengths of different metals. These lengths are joined at the top and connected to a voltmeter at the bottom. When there is a temperature disparity between the top and bottom, an electromotive force is produced which is roughly proportional to the temperature difference.

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Keywords: digital, electricity, electronic, electronics, equipment, meter, physical, physics, sensor, technological, technology, thermocouple, thermometer

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