Haum rau Atlas siab sensor P165-5183 B1203-072

Thermoelectric effect ntawm sensor

Cov ntaub ntawv semiconductor muaj peev xwm ua tau zoo thermoelectric thiab tuaj yeem siv tau los ua cov tub yees me me thermoelectric. Daim duab 1 qhia tau hais tias lub thermocouple tub yees muaj li ntawm n-hom semiconductor thiab p-hom semiconductor. N-hom semiconductor thiab P-hom semiconductor txuas rau hauv lub voj los ntawm cov phaj tooj liab thiab tooj liab, thiab cov phaj tooj liab thiab tooj liab tsuas yog ua lub luag haujlwm ua haujlwm. Lub sijhawm no, ib qho kev sib cuag tau kub thiab ib qho kev sib cuag yuav txias. Yog tias qhov kev taw qhia tam sim no thim rov qab, qhov txias thiab kub ua haujlwm ntawm lub node yog reciprocal.

Qhov tso zis ntawm lub tub yees thermoelectric feem ntau yog me me, yog li nws tsis haum rau kev siv loj thiab loj. Txawm li cas los xij, vim nws muaj zog yoog raws, yooj yim thiab yooj yim, nws yog qhov tsim nyog rau micro-tub yees lossis qhov chaw txias nrog cov kev cai tshwj xeeb.

Lub hauv paus theoretical ntawm thermoelectric tub yees yog cov nyhuv thermoelectric ntawm cov khoom. Thaum tsis muaj qhov sib nqus sab nraud, nws suav nrog tsib qhov teebmeem, xws li kev ua kom sov, Joule tshav kub poob, Seebeck nyhuv, Peltire nyhuv thiab Thomson nyhuv.

Cov cua txias thiab cov tub yees siv cov fluoride chloride ua cov tub yees, uas ua rau cov txheej txheem ozone raug puas tsuaj. Cov tub yees tsis muaj tub yees (cov cua txias) yog li ntawd yog ib qho tseem ceeb hauv kev tiv thaiv ib puag ncig. Siv cov nyhuv thermoelectric ntawm semiconductors, lub tub yees tsis muaj tub yees tuaj yeem ua tau.

Txoj kev tsim hluav taws xob no ncaj qha hloov hluav taws xob hluav taws xob rau hauv hluav taws xob, thiab nws cov kev hloov pauv tau raug txwv los ntawm Carnotefficiency, txoj cai thib ob ntawm thermodynamics. Thaum ntxov li 1822, Xibe nrhiav tau nws, yog li cov nyhuv thermoelectric kuj hu ua Seebeckeffect.

Nws tsis yog tsuas yog hais txog qhov kub thiab txias ntawm ob qhov sib txuas, tab sis kuj rau cov khoom ntawm cov khoom siv hluav taws xob. Qhov zoo ntawm txoj kev tsim hluav taws xob no yog tias nws tsis muaj qhov sib hloov ntawm cov khoom siv thiab yuav tsis hnav, yog li nws tuaj yeem siv tau ntev. Txawm li cas los xij, txhawm rau ua kom tau txais txiaj ntsig zoo, yuav tsum muaj qhov cua sov uas muaj qhov kub thiab txias, thiab qee zaum ob peb txheej ntawm cov khoom siv hluav taws xob yog cov cascade los yog theem kom ua tau zoo.