thermopile
(ˈθɜːməpaɪl)
[f. thermo- + pile n.3 5.]
A thermo-electric battery, used in connexion with a galvanometer, for measuring minute quantities of radiant heat; also called thermo-multiplier.
| 1849 Noad Electricity (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 §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. |