Taw qhia:

Hauv cov txheej txheem kev lag luam ntau lawm, qhov kub thiab txias yog ib qho tseem ceeb uas yuav tsum tau ntsuas thiab tswj tau. Hauv kev ntsuas kub, thermocoples tau siv dav. Lawv muaj ntau yam zoo, xws li cov qauv yooj yim, kev ua haujlwm yooj yim, kev hloov pauv me me, thiab yooj yim me me kis ntawm cov zis. Tsis tas li ntawd, vim tias thermocouple yog passive sensor, nws tsis xav tau lub zog sab nraud ntawm kev ntsuas kub lossis cov kua hauv cov dej thiab cov kav dej thiab cov khoom kub.

Ua haujlwm ua haujlwm:

Thaum muaj ob tus sib txawv lossis cov semiconductors a thiab b los ua ib qho kev kub siab, thiab qhov kub thiab txias, thiab qhov kub thiab txias, thiab qhov kub thiab txias Lub zog hluav taws xob muaj feem xyuam rau cov khoom siv ntawm tus neeg xyuas pib thiab ntsuas kub ntawm ob lub junctions. Qhov tshwm sim no hu ua "thermoelectric cov nyhuv", thiab lub voj muaj ntawm ob tug cwj pwm hu ua "thermocouple".

Lub thermoelectromotive quab yuam muaj ntawm ob ntu, ib feem yog kev tiv tauj hluav taws xob quab yuam ntawm ob qho, thiab lwm qhov yog lub zog hluav taws xob lub zog ntawm ib tus neeg kos npe.

Qhov loj ntawm lub thermoelectromotive quab yuam nyob rau hauv lub thermocouple voj tsuas yog cuam tshuam nrog cov khoom siv ntawm kev saib xyuas uas ntsuas cov khoom siv thiab qhov loj me ntawm thermocouple. Thaum ob lub electrode cov ntaub ntawv ntawm thermocouple yog tsau, lub thermoelectromotive quab yuam yog ob tshuam kub t thiab t0. muaj nuj nqi tsis zoo.