Thermocouple, yomwe imatchedwanso thermal junction, thermoelectric thermometer, kapena thermel, ndi sensa yomwe imagwiritsidwa ntchito kuyeza kutentha.Zimapangidwa ndi mawaya awiri opangidwa kuchokera ku zitsulo zosiyanasiyana zomwe zimagwirizanitsidwa kumapeto kulikonse.Mzere umodzi umayikidwa pamene kutentha kumayezedwa, ndipo winayo amasungidwa kutentha kosalekeza.Pa mphambano iyi ndipamene amayezera kutentha.Chida choyezera chimalumikizidwa mudera.Kutentha kukasintha, kusiyana kwa kutentha kumayambitsa kukula kwa mphamvu ya electromotive (yotchedwa Seebeck effect, yomwe imadziwikanso kuti thermoelectric effect,) yomwe ili pafupifupi yofanana ndi kusiyana kwa kutentha kwa magawo awiriwa.Popeza zitsulo zosiyanasiyana zimapanga ma voltages osiyanasiyana zikakhala ndi gradient yotentha, kusiyana pakati pa ma voltages awiriwo amafanana ndi kutentha.Zomwe ndizochitika zakuthupi zomwe zimatenga kusiyana kwa kutentha ndikuzisintha kukhala zosiyana za magetsi a magetsi.Choncho kutentha kumatha kuwerengedwa kuchokera ku matebulo ovomerezeka, kapena chida choyezera chikhoza kuwerengedwa kuti chiwerenge kutentha molunjika.
Mitundu ndi madera ogwiritsira ntchito thermocouples:
Pali mitundu yambiri ya ma thermocouples, iliyonse ili ndi mawonekedwe akeake potengera kutentha, kulimba, kukana kugwedezeka, kukana kwamankhwala, komanso kugwirizira ntchito.Mitundu ya J, K, T, & E ndi "Base Metal" thermocouples, mitundu yodziwika kwambiri ya thermocouples.Mtundu R, S, ndi B thermocouples ndi "Noble Metal" thermocouples, omwe amagwiritsidwa ntchito pa kutentha kwakukulu.
Thermocouples amagwiritsidwa ntchito mu mafakitale ambiri, sayansi, ndi zina zotero.Atha kupezeka pafupifupi m'misika yonse yamafakitale: Kutulutsa Mphamvu, Mafuta / Gasi, Zida zopangira Chakudya, Malo osambira, Zida Zachipatala, Makina opanga mafakitale, Kuwongolera kutsata mapaipi, Kuchiza kutentha kwa mafakitale, Kuwongolera kutentha kwa refrigeration, Kuwongolera kutentha kwa uvuni, etc.Ma Thermocouples amagwiritsidwanso ntchito pazida za tsiku ndi tsiku monga mbaula, ng'anjo, uvuni, chitofu cha gasi, chotenthetsera madzi gasi, ndi toaster.
Kwenikweni, anthu amasankha kugwiritsa ntchito ma thermocouples nthawi zambiri amasankhidwa chifukwa cha mtengo wake wotsika, malire a kutentha, kusiyanasiyana kwa kutentha, komanso chilengedwe chokhazikika.Chifukwa chake ma thermocouples ndi amodzi mwama sensor omwe amagwiritsidwa ntchito kwambiri.
Nthawi yotumiza: Dec-17-2020