Inzwa yeqondo lokushisa yinto eqhelekileyo kuluhlu olubanzi lwezixhobo zokunceda ukubeka iliso kwiqondo lokushisa lokusebenza kwiisekethe.Ziyimpawu ezisebenzayo kwizicelo ezinxulumene nokuphathwa kweekhemikhali, izixhobo zonyango, iiyunithi zokulungisa ukutya kunye nolawulo lwendalo ye-AC.Esona sixhobo saziwayo sithemometha, esiluncedo ukukhawuleza ukulinganisa ubushushu bolwelo kwizinto eziqinileyo.
Nazi ezine zezona ntlobo zidumileyo zezinzwa zobushushu:
Thermocouple
Inzwa ye-thermocouple yeyona ndlela idumileyo yokulinganisa ubushushu.Ineentlobo ngeentlobo zeenzuzo, ezifana nokuzenzela amandla, ixabiso eliphantsi kunye nombhoxo kakhulu.Olu hlobo lwenzwa lusebenza ngokulinganisa utshintsho olwenzekayo kwi-voltage kwaye lusebenza kumgaqo-siseko we-thermo-electric effect.Ngokuqhelekileyo ikhuselwe ngentsimbi okanye i-ceramic shield ukunyusa amandla ayo okusebenza kwiindawo ezinzima.
Isitshini soBubushushu esichasayo
I-resistor yeqondo lokushisa (RTD) inamandla okunika idatha echanekileyo.Inzwa yokwenyani yakhiwe kwizinto ezininzi ezinxibe nzima, ezinje ngobhedu, nickel kunye neplatinam.Oku kwenza kube lula ukusebenza kwiqondo lokushisa elibanzi elingahluka ukusuka -270 ° C ukuya + 850 ° C. Kwakhona, olu hlobo lwenzwa kufuneka ludibaniswe nomsinga wangaphandle ukuze lusebenze ngokusemandleni alo.
Thermistor
I-thermistor lolunye uhlobo lwenzwa ekulula ukuyisebenzisa, iyaguquguquka kwaye ayibizi kakhulu.Iyakwazi ukulungelelanisa ukuchasana kwayo xa utshintsho lweqondo lokushisa lufunyenwe.Le nzwa yeqondo lokushisa yenziwe kwizinto ze-ceramic ezifana ne-nickel kunye ne-manganese, enokubashiya engozini yomonakalo.Uphawu oluluncedo kukukwazi ukuba novakalelo olukhulu xa kuthelekiswa ne-RTD.
Ubushushu bokulinganisa
Ithemometha lukhetho olusebenzayo lokulinganisa ubushushu beegesi, ulwelo okanye izinto eziqinileyo.Ibamba utywala okanye ulwelo lwemekyuri kwityhubhu yeglasi eqala ukunyuka umthamo xa ubushushu buqala ukunyuka.Ityhubhu yeglasi ebambe ulwelo iphawulwe ngesikali esilinganisiweyo ukubonisa ngokucacileyo ukunyuka okanye ukuwa kobushushu.Kwakhona, ubushushu burekhodwa ngokulula kwizikali eziliqela, kuquka iCelsius, iKelvin kunye neFahrenheit.
Ngokubanzi, kukho iintlobo ezininzi ezahlukeneyo zezivamvo zobushushu kwimarike.Kubalulekile ukusebenzisa i-sensor elungileyo ukuhambelana nesicelo kuba ukuchaneka kunokwahluka kunye nokukhetha okwahlukileyo.Inzwa ekhethwe kakubi inokukhokelela ekubeni isixhobo singasebenzi kakuhle ngenxa yokuba ubushushu buvunyelwe ukuba bunyuke ngaphandle kwesilumkiso esifanelekileyo.