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| Thermoelectric effect |
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A thermopile is an electronic device that converts thermal energy into electrical energy. It is composed of several thermocouples connected usually in series or, less commonly, in parallel.
Thermopiles do not respond to absolute temperature, but generate an output voltage proportional to a local temperature difference or temperature gradient.
Thermopiles are used to provide an output in response to temperature as part of a temperature measuring device, such as the infrared thermometers widely used by medical professionals to measure body temperature. They are also used widely in heat flux sensors (such as the Moll thermopile and Eppley pyrheliometer)[1][2][3] and gas burner safety controls. The output of a thermopile is usually in the range of tens or hundreds of millivolts.[4] As well as increasing the signal level, the device may be used to provide spatial temperature averaging.[5]
Thermopiles are also used to generate electrical energy from, for instance, heat from electrical components.
See also [edit]
External links [edit]
References [edit]
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Wall Street Journal (press release)
Tue, 14 May 2013 06:07:05 -0700
Excelitas Technologies, a global technology leader focused on delivering innovative, customized optoelectronics to OEMs seeking high-performance technology solutions, today launched the latest in its line of innovative digital thermopile detectors, the ...
|  Novus Light Technologies Today |
Novus Light Technologies Today
Mon, 13 May 2013 07:52:41 -0700
The 843-R power meter is fully compatible with Newport's 818, 918D, 819C/D Series photodiodes and its new 919P Series thermopile sensors. In combination with a thermopile sensor, the 843-R is capable of single-shot energy pulse measurement.
|  Photonics.com |
Photonics.com
Tue, 21 May 2013 10:07:23 -0700
Based on thermopile technology, the device features a reflective cone that deflects the laser beam onto the inner circumference of the sensor, increasing the radiated area and reducing the power density to manageable levels. Response time is <10 s and ...
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AZoCleantech
Mon, 20 May 2013 03:56:48 -0700
Theses generators include pairs of n-type and p-type semiconductor materials that form thermocouples. These are electrically connected to form an array of multiple thermocouples known as thermopile which are sandwiched between thin ceramic wafers.
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Azomining
Tue, 07 May 2013 06:23:33 -0700
Since 1977, Dexter Research has been the preferred provider of infrared thermopile detectors for science and industry. Today we offer the world's largest selection of thermopile-based solutions including high-quality, high-output Bismuth-Antimony thin ...
|  Photonics.com |
Photonics.com
Tue, 14 May 2013 12:21:42 -0700
In combination with a thermopile sensor, the power meter can measure single-shot energy pulse as well as both CW and pulsed laser power. The 919P is insensitive to beam position and offers a broadband, spectrally flat response from 0.19 to 11 µm with a ...
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environmentalresearchweb
Wed, 08 May 2013 01:09:02 -0700
Aplin and colleague Mike Lockwood from the University of Reading used a specially designed infrared sensor – an atmospheric thermopile radiometer – alongside a small cosmic-ray detector containing vertically stacked Geiger counters. The radiometer was ...
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Cyprus Mail
Sat, 04 May 2013 04:05:03 -0700
For several days preceding the lighting of the bonfire - an event which is usually carried out under the auspices of the mayor during Mass on Holy Saturday - these youngsters are busily collecting anything that will burn and adding it to the thermopile.
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