Ihame ryakazi rya thermocouple

Iyo hari imiyoboro ibiri itandukanye cyangwa semiconductor A na B kugirango ikore A loop, impera zayo zombi zirahujwe, mugihe cyose ubushyuhe bwimyanya yombi butandukanye, ubushyuhe bwanyuma bwa T, bwitwa iherezo cyangwa akazi gashushe, kurundi. ubushyuhe bwanyuma T0, buzwi nkumusozo wubusa (bizwi kandi kuruhande) .Iyi phenomenon yitwa ingaruka ya thermoelectric, ubwoko bubiri bwumuzunguruko uzwi nka "thermocouple", ugizwe na kanseri ebyiri zitwa electrode "ishyushye", ingufu za electromotive zitwa "emf.

Emfs ya Thermoelectric emfs igizwe nibice bibiri byingufu za electromotive, igice cya kabiri kiyobora ihuza ingufu za electromotive, ikindi gice numuyoboro umwe utandukanya ubushyuhe bwimbaraga za electromotive.

Ingano ya thermocouple loop thermoelectric emfs, gusa hamwe nibigize ibikoresho byumuyoboro wa thermocouple bijyanye nubushyuhe bwibiri byombi, kandi ntaho bihuriye nubunini bwubunini bwa thermocouple.Nyuma ya thermocouple ikosoye ibikoresho bibiri bya electrode, guhuza ubushyuhe t hamwe na emmo ya thermoelectric ni t0 ebyiri.Imikorere irakennye.

Iri gereranya ryakoreshejwe cyane mugupima ubushyuhe nyabwo.Kubera imbeho ikonje t0 ihoraho, ikorwa na thermocouple thermoelectric emfs gusa (gupima) yubushyuhe bwanyuma burahinduka, emf ya thermoelectric ihuye nubushyuhe runaka.Igihe cyose dukoresheje uburyo bwo gupima emfs ya termoelektrike irashobora kugera ku ntego yo gupima ubushyuhe.

Ibipimo by'ubushyuhe bwa Thermocouple nihame shingiro ryubwoko bubiri bwibintu bitandukanye bigize ibikoresho bifunga ibintu bifunze, mugihe ubushyuhe bwa gradient buri kumpande zombi, umuzenguruko uzaba ufite amashanyarazi anyuramo, yabayeho hagati yingufu za electromotive kumpande zombi - emfrimelectric emf , iyi niyo yitwa ingaruka ya Seebeck (Ingaruka ya Seebeck).Ibice bibiri bitandukanye bigize umuyoboro wa elegitoronike ya electrode nkubushyuhe, ubushyuhe buri hejuru kumurimo kumpera yimpera, impera imwe yubushyuhe buke nkimpera yubusa, mubisanzwe iherezo ryubusa munsi yubushyuhe buhoraho.Ukurikije thermoelectric emf nkigikorwa cyubushyuhe, imbonerahamwe yerekana ubushyuhe;Imbonerahamwe yerekana ni ubushyuhe bwanyuma kuri 0 ℃, ukurikije imiterere ya thermocouples hamwe nimbonerahamwe itandukanye.

Kwinjira muri thermocouple loop mugihe ibikoresho bya gatatu byicyuma, byombi bihuza ubushyuhe bumwe nkigihe cyose ibikoresho, byakozwe na thermocouple thermoelectric byashyizwe kumurongo, bitatewe ingaruka nicyuma cya gatatu cyinjira mumuzinga.Kubwibyo, mugihe igipimo cyubushyuhe bwa thermocouple, gishobora guhuzwa nigikoresho cyo gupima, gipimwa nyuma ya emfs ya thermoelectric, gishobora kumenya ubushyuhe bwikigereranyo cyapimwe.Ubushyuhe bwa Thermocouple gupima ubushyuhe kugeza kumpera ikonje (gupima impera yumusozo ushushe, kumpera yicyerekezo ihujwe numuzunguruko wo gupima byitwa ubukonje bukonje) ubushyuhe buragumya guhora, ubunini bwubushobozi bwa termoelektrike hamwe nubushyuhe bwapimwe mubusabane runaka.Iyo upimye, ubukonje bwanyuma burahinduka (ibidukikije), bizagira ingaruka zikomeye kubipimo.Fata ingamba ku ndishyi zanyuma zikonje bitewe ningaruka ziterwa nubushyuhe bwubushyuhe bwiswe bita thermocouple ubukonje bukonje nibisanzwe.Uhujwe nigikoresho cyo gupima hamwe nuyobora indishyi zidasanzwe.

Uburyo bwo kubara indishyi ya Thermocouple uburyo bwo kubara:
Kuva kuri milivolt kugeza ku bushyuhe: gupima ubushyuhe bwanyuma bukonje no guhinduka kubiciro bihuye na milivolt, agaciro ka milivolt hamwe na thermocouple, ihinduka ryubushyuhe;

Kuva ku bushyuhe kugera kuri milivolt: gupima ubushyuhe nyabwo n'ubushyuhe bwa nyuma bukonje no guhinduka kubiciro bya milivolt, kimwe, nyuma yo gukuramo indangagaciro za milivolt, ubushyuhe bwihuse.