thermopile

instrument

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Last updated

July 14, 2026

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A thermopile is an instrument that measures temperature by combining multiple thermocouples in series. This arrangement amplifies the effect of the Seebeck effect, where a temperature difference between two dissimilar metals generates an electromotive force. The greater the temperature difference, the stronger the electrical output. This increased sensitivity allows thermopiles to detect faint radiation, making them useful in devices like pyrometers for measuring high temperatures without direct contact. They can also be used to generate small electrical currents or determine radiation intensity.12

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thermocouple
A thermopile is a number of thermocouples connected in series. Its results are comparable to the average of several temperature readings. A series circuit also gives greater sensitivity, as well as greater power output, which can be used to operate a device such as a safety…
Read More
A thermopile is a number of thermocouples connected in series. Its results are comparable to the average of several temperature readings. A series circuit also gives greater sensitivity, as well as greater power output, which can be used to operate a device such as a safety…
Read More