thermopile

[thur-muh-pahyl]
noun Physics.
a device consisting of a number of thermocouples joined in series, used for generating thermoelectric current or for detecting and measuring radiant energy, as from a star.

Origin:
1840–50; thermo- + pile1

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World English Dictionary
thermopile (ˈθɜːməʊˌpaɪl)
 
n
an instrument for detecting and measuring heat radiation or for generating a thermoelectric current. It consists of a number of thermocouple junctions, usually joined together in series
 
[C19: from thermo- + pile1 (in the sense: voltaic pile)]

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American Heritage
Science Dictionary
thermopile   (thûr'mə-pīl')  Pronunciation Key 
A device consisting of a number of thermocouples connected in series or parallel, used for measuring temperature or generating current.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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Example sentences
Each well is surrounded by a multi-junction thermopile which monitors the temperature difference between the well and the block.
Thermopile linearity was tested in air by comparison to a silicon photodiode.
The one near the thermopile can be used to temperature correct a direct reading from the thermopile.
Most of this error is attributed to the thermopile cooling to space.
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