TERMOELEMENT

TERMOELEMENT (az termo… va rusi element — unsur), zanjiri elektri va yo yak qismi onro guyand, ki az du noqili gayriyakjinsa yo az du nimnoqil tarkib yofta, amali on ba istifodai hodisahoi termoelektri asos yoftaast. Dar Termoelementho barobari ba energiyai elektri tabdil dodani energiyai harorati (hodisai Zeebek), inchunin imkoniyati ba energiyai harorati tabdil dodavi energiyai elektri (hodisai Pelte) mavjud ast. Termoelementhoro dar tekhnikai andozagiri (ba istlloh juftitermiki), asbobhoi harorati, tajhizoti sardoni, termogenerator va gayra istifoda mebarand.

Jufthoi termiki ba sifati nishondihandai harorat istifoda meshavand, zero onho baroi dar hududi az —2000S to 3000°S chen kardani harorat imkon medihand; tavassuti jufthoi termikii differensiali boshad, farqi khurdi harorathoro chen mekunand. Baroi sokhtani jufti termiki metallhoi kholis va khulahoi onho (platina, platinoiridiy, khromeog, alyumen, ohan, konstantan va gayra)-ro ba kor mebarand. Dar Ittifoqi Soveti panj namudi jufti termiki standarti hisob meshavad (GOST 6616—61), ki az onho namudhoi TPP, TPR, TKhA va TKhK beshtar mamuland. Jufti termikii namudi TKhK (khromelu kopeli) doroi hassosiyati baland ast. Hangomi 1000S budani farqi haroratho dar on quvvai elektrharakatdihandai termiki hosil megardad, ki buzurgii on ba 6,95 mV barobar ast. Termoelementhoi nimnoqiliro baroi tabdili bavositai energiyai harorati ba elektri va hosil namudani garmiyu khuluki istifoda mebarand. A. Sulaymonov.