Intambo yokubuyisela yintambo ezimbini ezinomaleko wokukhusela onexabiso elifanayo nelombane we-thermoelectromotive we-thermocouple ehambelanayo kuluhlu oluthile lobushushu (0~100°C). Iimpazamo ezibangelwa kukutshintsha kobushushu kwindawo yokuhlangana. Umhleli olandelayo uza kukwazisa ukuba yintoni intambo yokubuyisela i-thermocouple, yintoni umsebenzi wentambo yokubuyisela i-thermocouple, kunye nokuhlelwa kwentambo yokubuyisela i-thermocouple.
1. Yeyiphi into esetyenziswayo yintambo yokubuyisela i-thermocouple?
Intambo yokubuyisela ngokubanzi ifuna ukuba ii-electrode ezilungileyo nezingalunganga zifane nezinto ezilungileyo nezingalunganga ze-thermocouple. Ii-thermocouples zohlobo lwe-K yi-nickel-cadmium (elungileyo) kunye ne-nickel-silicon (engalunganga), ngoko ke ngokwemigangatho, kufuneka kukhethwe iintambo zokubuyisela ze-nickel-cadmium-nickel-silicon.
2. Yintoni umsebenzi wentambo yokuhlawula i-thermocouple
Kukwandisa i-electrode eshushu, oko kukuthi, isiphelo esibandayo se-thermocouple ehambayo, kwaye uqhagamshele kwisixhobo sokubonisa ukwenza inkqubo yokulinganisa ubushushu. Yamkela ngokulinganayo umgangatho wesizwe we-IEC 584-3 “Thermocouple Part 3 – Compensation Wire”. Ezi mveliso zisetyenziswa kakhulu kwizixhobo ezahlukeneyo zokulinganisa ubushushu, kwaye zisetyenziswe kakhulu kumandla enyukliya, ipetroliyam, iikhemikhali, isinyithi, umbane kunye namanye amasebe.
3. Ukwahlulwahlulwa kweentambo zokuhlawula i-thermocouple
Ngokomgaqo, yahlulwe ngohlobo lolwandiso kunye nohlobo lwembuyekezo. Ulwakhiwo lweekhemikhali oluqhelekileyo lwentambo ye-alloy yohlobo lwe-extension lufana nolwe-thermocouple ehambelanayo, ngoko ke amandla e-thermoelectric nawo ayafana. Amelwe ngu-"X" kwimodeli, kwaye ulwakhiwo lweekhemikhali oluqhelekileyo lwentambo ye-alloy yohlobo lwembuyekezo lufana. Ahlukile kwi-thermocouple ehambelanayo, kodwa kuluhlu lwayo lobushushu olusebenzayo, amandla e-thermoelectric asondele kwixabiso eliqhelekileyo le-thermoelectric potential ye-thermocouple ehambelanayo, emelwe ngu-"C" kwimodeli.
Ukuchaneka kwembuyekezo kwahlulwe ngokwebakala eliqhelekileyo kunye nebakala elichanekileyo. Impazamo emva kwembuyekezo yebakala elichanekileyo ngokubanzi isiqingatha nje senqanaba eliqhelekileyo, elihlala lisetyenziswa kwiindawo ezineemfuno eziphezulu zokuchaneka kokulinganisa. Umzekelo, kwiingcingo zembuyekezo zamanani okugqiba i-S kunye ne-R, ukuchaneka kwenqanaba elichanekileyo yi-±2.5°C, kwaye ukuchaneka kwenqanaba eliqhelekileyo yi-±5.0°C; kwiingcingo zembuyekezo zamanani okugqiba i-K kunye ne-N, ukuchaneka kwenqanaba elichanekileyo yi-±1.5°C, ukuchaneka kwenqanaba eliqhelekileyo yi-±2.5℃. Kwimodeli, inqanaba eliqhelekileyo aliphawulwanga, kwaye inqanaba elichanekileyo longezwa ngo-“S”.
Ukusuka kubushushu bokusebenza, yahlulwe ngokwendlela yokusetyenziswa ngokubanzi kunye nendlela yokumelana nobushushu. Ubushushu bokusebenza ngokubanzi yi-0 ~ 100 °C (ezimbalwa ziyi-0 ~ 70 °C);
Ukongeza, i-core yentambo ingahlulwahlulwa ibe ziintambo zokuhlawula ezinemicu enye kunye neentambo ezininzi (iintambo ezithambileyo), kwaye ingahlulwahlulwa ibe ziintambo zokuhlawula eziqhelekileyo nezikhuselweyo ngokwendlela ezinokuba zinemaleko yokukhusela, kwaye kukwakho neentambo zokuhlawula zeesekethe ezikhuselekileyo ngokwangaphakathi ezinikezelwe kwiziganeko ezingenakugqabhuka.