thermopilen.
/ˈθəːməpʌɪl/, U.S. /ˈθərməˌpaɪl/ A thermo-electric battery, used in connection with a galvanometer, for measuring minute quantities of radiant heat; also called thermo-multiplier n.
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the world > matter > physics > electromagnetic radiation > electricity > electrical appliances or devices > [noun] > measuring device
thermo-multiplier1835
thermopile1849
1849 H. M. Noad Lect. Electr. (ed. 3) 424 Thermo-piles are now constructed by soldering together at their alternate edges, bars of antimony and bismuth, with squares of cardboard or thick paper intervening.
1871 B. Stewart Heat (ed. 2) §165 A square block, containing altogether 25 couples of bismuth and antimony is generally employed, and such an arrangement is called a thermo-pile.
1891 Times 2 Oct. 3/1 A thermopile..is an apparatus for direct conversion of heat into electricity.
This entry has not yet been fully updated (first published 1912; most recently modified version published online March 2022).
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