Indlela yokugweba ukuba i-thermocouple ilungile okanye imbi?

Ukusetyenziswa kwimveliso kuya kuba ngakumbi kwaye kubanzi.Thermocouplesziye zaba zezona zinto zixhaphakileyo zisetyenziselwa ukufumanisa ubushushu kushishino. Banempawu zokuchaneka kwemilinganiselo ephezulu, uluhlu olubanzi lokulinganisa, ulwakhiwo olulula, kunye nokusetyenziswa okufanelekileyo. Siyaqonda kwaye sihlalutya iimveliso ngeendlela ezininzi, kwaye sivelisa uluhlu olubanzi lolwazi loshishino kushishino oluninzi lwabasebenzisi beenethiwekhi.
Ke ngokulandelayo siza kusiqonda isigwebo sokuba i-ubushushu ilungile okanye imbi?
Umgaqo osisiseko wokulinganisa ubushushu be-ubushushu kukuba izinto ezimbini ezahlukeneyo zabaqhubi bezinto zenza iluphu evaliweyo. Xa kukho igradient yobushushu kwiziphelo zombini, okwangoku kuya kuhamba ngokujikeleza. Ngeli xesha, kukho amandla ombane we-elektroniki-amandla e-thermoelectromotive phakathi kweziphelo zombini. Oku kubizwa ngokuba sisiphumo seSeebeck. Abaqhubi ababini abafanayo bento ezahlukeneyoubushushu, isiphelo esinobushushu obuphezulu sisiphelo sokusebenza, isiphelo esinobushushu obuphantsi sisiphelo samahhala, kwaye isiphelo samahhala sidla ngokuhlala kwiqondo elithile lokushisa.
Emva kokusebenzisa ixesha elithile, i-ubushushus ngokuqinisekileyo iya kuguga, kwaye inokonakala. Ngokuqhelekileyo, umgangatho we-ubushushus uhambelana nocingo lwe-ubushushu (ucingo) kuyo, kodwa indlela yokugweba umgangatho we-ubushushu wire yingxaki. Masiyixubushe ngokufutshane.


Okokuqala, qiniseka ukuba akukho ngxaki ngokubonakala kwentambo ye-ubushushu, nokuba ilungile okanye imbi, kwaye inokumiselwa kuphela ngokuvavanya.
Beka ucingo lwe-ubushushu ukuba luvavanywe kwimikhono ekhethekileyo ye-ceramic kwi-ubushushu, kwaye uyifake kwi-tubular electric furnace kunye neplatinam eqhelekileyo kunye ne-rhodiumubushushu, kwaye ufake isiphelo esishushu kwi-porous soaking metal nickel kwi-tubular electric furnace. Kwisilinda. Beka iziphelo ezibandayo zeengcingo zembuyekezo ngokufanelekileyo kwisikhongozelo esiku-zero degrees Celsius egcinwe ngumxube womkhenkce namanzi.
Gcina ityhubhu yombane kwiziko lombane kubushushu obuphezulu obuvumelekileyo kwi-ubushushu, kwaye ugcine olu luhlu ngokuthe chu. Ngeli xesha, sebenzisa i-potentiometer efanelekileyo ye-Wheatstone ukulinganisa kunye nokurekhoda umahluko we-thermoelectric enokubakho phakathi kwe-ubushushu esemgangathweni kunye ne-ubushushu eza kuvavanywa. Ngokomahluko obhaliweyo we-thermoelectric, jonga kwitafile yesalathiso ukufumana ubushushu obuhambelanayo. UkubaubushushuPhantsi kovavanyo kuphuma kunyamezelo, kunokugwetywa njengongafanelekanga.