A thermopile is an electronic device that converts thermal energy into electrical energy. It is composed of thermocouples connected usually in series [] , or less commonly in parallel. Thermopiles do not measure the absolute temperature, but generate an output voltage proportional to a local temperature difference or temperature gradient. Thermopiles are the key component of the infrared thermometers that are widely used by medical professionals to measure body temperature via the ear. They are also used widely in heat flux sensors (such as the Moll thermopile and Eppley pyrheliometer) [] [] [] and gas burner safety controls. The output of a thermopile is usually in the range of tens or hundreds of millivolts. [] As well as increasing the signal level, the device may be used to provide spatial temperature averaging. []

ee also

*Thermoelectric Effect
*Radioisotope Thermoelectric Generator

External links

* [ The Museum of Retro Technology: Thermo-Electric Generators]


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  • Thermopile — Ther mo*pile, n. [Thermo + pile a heap.] (Physics) An instrument of extreme sensibility, used to determine slight differences and degrees of heat. It is composed of alternate bars of antimony and bismuth, or any two metals having different… …   The Collaborative International Dictionary of English

  • thermopile — ► NOUN ▪ a set of thermocouples arranged for measuring small quantities of radiant heat …   English terms dictionary

  • thermopile — [thʉr′mōpīl΄] n. [ THERMO + PILE1] a device consisting of a series of thermocouples, used for measuring minute changes in temperature or for generating thermoelectric current …   English World dictionary

  • thermopile — thermoélectrique [ tɛrmoelɛktrik ] adj. • 1823; de thermo et électrique ♦ Relatif à la thermoélectricité. Effet thermoélectrique : phénomène réciproque de transformation d énergie thermique en énergie électrique. Couple thermoélectrique. ⇒… …   Encyclopédie Universelle

  • Thermopile —  Pour l’article homophone, voir Thermopyles. Une thermopile est un dispositif électronique qui convertit l énergie thermique en énergie électrique. Elle est composée de thermocouples connectés en parallèle ou en série. Les thermopiles… …   Wikipédia en Français

  • thermopile — termobaterija statusas T sritis fizika atitikmenys: angl. thermobattery; thermopile vok. Thermobatterie, f rus. термобатарея, f pranc. pile thermoélectrique, f; thermobatterie, f; thermopile, f …   Fizikos terminų žodynas

  • thermopile — termoelementas statusas T sritis Standartizacija ir metrologija apibrėžtis Temperatūros jutiklis, sudarytas iš dviejų skirtingų elektros laidininkų. atitikmenys: angl. thermocell; thermoelement; thermopile vok. Thermoelement, n; Thermozelle, f… …   Penkiakalbis aiškinamasis metrologijos terminų žodynas

  • thermopile — termoelementas statusas T sritis chemija apibrėžtis Temperatūros daviklis, sudarytas iš dviejų skirtingų elektros laidininkų. atitikmenys: angl. thermocelle; thermocouple; thermoelement; thermopile rus. термопара; термоэлемент ryšiai: sinonimas – …   Chemijos terminų aiškinamasis žodynas

  • thermopile — termoelektrinis stulpelis statusas T sritis fizika atitikmenys: angl. thermocolumn vok. Thermosäule, f rus. термостолбик, m pranc. thermopile, f …   Fizikos terminų žodynas

  • thermopile — noun Etymology: 4pile Date: 1849 an apparatus consisting of thermocouples combined so as to multiply the effect and used for generating electric currents or determining intensities of radiation …   New Collegiate Dictionary

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