digplanet beta 1: Athena
Share digplanet:

Agriculture

Applied sciences

Arts

Belief

Business

Chronology

Culture

Education

Environment

Geography

Health

History

Humanities

Language

Law

Life

Mathematics

Nature

People

Politics

Science

Society

Technology

Not to be confused with Thermopylae.
Thermopile, composed of multiple thermocouples in series. If both the right and left junctions are the same temperature, voltages cancel out to zero. However if one side is heated and other side cooled, resulting total output voltage is equal to the sum of junction voltage differentials.

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, solar wind, radioactive materials, or combustion. The process is also an example of the Peltier Effect (electric current transferring heat energy) as the process transfers heat from the hot to the cold junctions.

See also[edit]

  • Seebeck effect—the physical effect responsible for the generation of voltage in a thermopile.
  • Thermoelectric materials—high-performance materials that can be used to construct a compact thermopile that delivers high power.

External links[edit]

References[edit]


Original courtesy of Wikipedia: http://en.wikipedia.org/wiki/Thermopile — Please support Wikipedia.
This page uses Creative Commons Licensed content from Wikipedia. A portion of the proceeds from advertising on Digplanet goes to supporting Wikipedia.

268 news items

AZoSensors

AZoSensors
Fri, 24 Apr 2015 07:37:30 -0700

Kipp & Zonen had been involved in the manufacture of a fast and sensitive thermopile used for the measurement of light and thermal radiation since 1913. The design, which was made up of several thermocouples, was by Dr. Moll of Utrecht University.

AZoSensors

AZoSensors
Thu, 12 Mar 2015 07:26:15 -0700

A thermopile detector is a passive radiation sensing voltage-generating device. It does not emit any radiation and require cooling or bias. Dexter Research Center (DRC) provides stable, high output radiation sensing thermopile detectors covering linear ...
 
AZoSensors
Fri, 13 Mar 2015 08:45:57 -0700

Time constant, signal-to-noise ratio (SNR), responsivity and output voltage are the four key performance parameters affected based on the selection of an encapsulating gas in a thermopile detector package. The effect of the molecular thermal ...

AZoSensors

AZoSensors
Thu, 19 Mar 2015 09:16:48 -0700

The robust package is designed for straightforward system integration. and the detector signal is amplified and normalized to facilitate read-out. The major differentiation to other thermopile detectors is, however, the signal rise time, which is a ...

Phys.Org

Phys.Org
Tue, 07 Jul 2015 02:11:15 -0700

Dr Costache's work demonstrates a conceptually new thermopile-like device that allow the properties of magnons to be measured independently of the thermoelectric contribution of electrons and phonons, providing crucial information for understanding the ...

AZoSensors

AZoSensors
Tue, 17 Mar 2015 08:23:48 -0700

Dexter's 2M quad thermopile detector is a four-channel thin-film thermopile compactly placed in a TO-8 package. All the active areas measure 2mm x 2mm. The detector provides exceptional four-channel sensitivity with excellent signal- to-noise performance.
 
Design News
Fri, 18 Apr 2014 03:02:13 -0700

Gadget Freak Case #253: Peltier Thermopile Cloud Sensor. Eric Chesak created a sensor that can detect clouds, and it can also measure different sources of radiation. Click here for build instructions, BOMs, and more. NO RATINGS. Login to Rate. 4/18 ...
 
ElectronicsWeekly.com
Tue, 22 Jan 2013 02:39:57 -0800

“Unlike conventional single thermopile or pyroelectric sensors that only measure temperature at a certain point-of-contact, Grid-EYE enables contactless temperature detection over an area,” said distributor Avnet Abacus, which is stocking it in Europe.
Loading

Oops, we seem to be having trouble contacting Twitter

Support Wikipedia

A portion of the proceeds from advertising on Digplanet goes to supporting Wikipedia. Please add your support for Wikipedia!

Searchlight Group

Digplanet also receives support from Searchlight Group. Visit Searchlight