I-Thermocouple sisixhobo sobushushu esisetyenziswa rhoqo kumlinganiso weqondo lobushushu

Okokuqala, i-ubushushu sisixhobo esishushu esisebenzisa ubushushu kwimilinganiselo yeqondo lobushushu. Ezona mpawu ziphambili kuluhlu olubanzi lokulinganisa ukwanga, ukusebenza okuzinzileyo, isakhiwo esilula, ukuphendula okuhle, kwaye kungadlulisa iisistim zombane ezi-4-20mA ukude, ezilungele ulawulo oluzenzekelayo. Kunye nolawulo oluphakathi.
Umgaqo weubushushuImilinganiselo yeqondo lobushushu isekwe kwisiphumo sombane. Ukudibanisa ezimbini zokuqhuba okanye ii-semiconductors kwilog evaliweyo, xa amaqondo obushushu kwiziphambuka ezibini ezahlukileyo, amandla ombane we-thermoelectric aya kwenziwa kwilogu. Le nto ibizwa ngokuba yimpembelelo yepyroelectric, ekwabizwa ngokuba sisiphumo seSeebeck.

Umbane we-thermoelectric owenziwe kwi-loop evaliweyo iqulethwe ziindidi ezimbini zamandla ombane; amandla e-thermoelectric kunye namandla oqhagamshelwano. Umthamo we-Thermoelectric ubhekisa kwisakhono sombane esiveliswa ziziphelo ezimbini zomqhubi ofanayo ngenxa yobushushu obahlukeneyo. Ii-conductor ezahlukeneyo zinee-electron ezahlukeneyo zokuxinana, ngoko ke zivelisa amandla awohlukeneyo ombane. Uqhagamshelwano olunokubakho luthetha xa ii-conductors ezimbini ezahlukeneyo zinxibelelana.

Ngenxa yokuba ingxinano ye-electron yabo yahlukile, umlinganiselo othile wokusabalalisa i-electron kwenzeka. Xa befikelela kwi-equilibrium ethile, amandla okwenza uqhagamshelwano oluxhomekeke kwizinto eziphathekayo zabaqhubi ababini abahlukeneyo kunye nokushisa kwamanqaku abo oqhagamshelwano. Okwangoku, iubushushuesetyenziswa kwilizwe jikelele inemigangatho. Ii-ubushushu ezilawulwa kwilizwe liphela zahlulwe zangamacandelo asibhozo ahlukeneyo, angala, B, R, S, K, N, E, J no T, anokulinganisa ubushushu obuphantsi. Imilinganiselo ye-270 degrees Celsius ngaphantsi kwe-zero, kwaye inokufikelela kuma-1800 degrees Celsius.

Phakathi kwabo, B, R, kunye no-S bakwiplatinum seriesubushushu. Ekubeni iplatinum iyintsimbi exabisekileyo, ikwabizwa ngokuba ziiubushushu zentsimbi ezixabisekileyo kwaye eziseleyo zibizwa ngokuba ziiubushushu zetsimbi ezinexabiso eliphantsi. Kukho iintlobo ezimbini zezakhiwo ze-ubushushu, uhlobo oluqhelekileyo kunye nohlobo lwe-armored. I-ubushushu eqhelekileyo ngokubanzi iqulunqwe nge-thermode, i-tube yokugquma, i-sleeve yokugcinwa kunye nebhokisi ye-junction, ngelixa i-ubushushu ye-armored yindibaniselwano yocingo lwe-ubushushu, i-insulation material kunye ne-sleeve yokugcinwa kwesinyithi emva kokuhlanganisana, emva kokutsala Inhlanganisela eqinileyo eyenziwe ngokolula.