Intambo yesinxephezelo iyipheya yezintambo ezinongqimba oluvikelayo olunenani lezinga elifanayo njengamandla we-thermoelectromotive we-thermocouple efanisiwe ebangeni elithile lokushisa (0~100°C).Amaphutha ngenxa yokushintsha kwezinga lokushisa endaweni yokuhlangana.Umhleli olandelayo uzokwethula ukuthi intambo yesinxephezelo se-thermocouple iyini, ukuthi uyini umsebenzi wentambo yesinxephezelo se-thermocouple, kanye nokuhlukaniswa kwentambo yesinxephezelo se-thermocouple.
1. Iyiphi into ephathekayo intambo yesinxephezelo se-thermocouple?
Intambo yesinxephezelo evamile idinga ukuthi ama-electrode aqondile kanye nama-negative afane nezinto ezinhle nezingezinhle ze-thermocouple.Ama-thermocouples ohlobo lwe-K yi-nickel-cadmium (positive) kanye ne-nickel-silicon (negative), ngakho-ke ngokwezinga elijwayelekile, izintambo zesinxephezelo ze-nickel-cadmium-nickel-silicon kufanele zikhethwe.
2. Uyini umsebenzi wentambo yesinxephezelo se-thermocouple
Iwukwelula i-electrode eshisayo, okungukuthi, isiphetho esibandayo se-thermocouple ephathwayo, futhi ixhume nethuluzi lokubonisa ukwenza isistimu yokulinganisa izinga lokushisa.Yamukela ngokulinganayo izinga likazwelonke le-IEC 584-3 “Thermocouple Part 3 – Compensation Wire”.Imikhiqizo isetshenziswa kakhulu kumadivayisi ahlukahlukene wokulinganisa izinga lokushisa, futhi isetshenziswe kabanzi emandleni enuzi, i-petroleum, amakhemikhali, i-metallurgy, amandla kagesi neminye iminyango.
3. Ukuhlelwa kwezintambo zesinxephezelo se-thermocouple
Empeleni, ihlukaniswe ngohlobo lwesandiso kanye nohlobo lwesinxephezelo.Ukwakheka kwamakhemikhali okuzisholo kwentambo ye-alloy yohlobo lwesandiso kuyafana nalokho kwe-thermocouple efanisiwe, ngakho amandla we-thermoelectric nawo ayafana.Imelelwe "X" kumodeli, futhi ukwakheka kwamakhemikhali okuzisholo kocingo lwe-alloy lohlobo lwesinxephezelo kuyafana.Ihlukile ku-thermocouple ehambisanayo, kodwa ebangeni layo lokushisa elisebenzayo, amandla e-thermoelectric aseduze nenani elilinganiselwe lamandla we-thermoelectric we-thermocouple efanisiwe, emele "C" kumodeli.
Ukunemba kwesinxephezelo kuhlukaniswe ibanga elijwayelekile kanye nebanga lokunemba.Iphutha ngemva kokunxeshezelwa kwebanga lokunemba ngokuvamile liwuhhafu kuphela walelo lebanga elivamile, elivame ukusetshenziswa ezindaweni ezinezidingo zokunemba kokulinganisa okuphezulu.Isibonelo, ngezintambo zesinxephezelo zezinombolo zokuthweswa iziqu ze-S no-R, ukubekezelelwa kwebanga lokunemba kungu-±2.5°C, futhi ukubekezelelana kwebanga elijwayelekile kungu-±5.0°C;ngezintambo zesinxephezelo zezinombolo zokuphothula u-K kanye no-N, ukubekezelelwa kwebanga lokunemba ngu-±1.5°C, ukubekezelelwa kwebanga elijwayelekile ngu-±2.5℃.Kumodeli, ibanga elijwayelekile alimakwanga, futhi ibanga lokunemba lengezwe ngo-“S”.
Kusukela kumazinga okushisa okusebenzayo, ihlukaniswe ngokusetshenziswa okujwayelekile kanye nokusetshenziswa okungamelana nokushisa.Izinga lokushisa elisebenzayo lokusetshenziswa okujwayelekile ngu-0 ~ 100 °C (okumbalwa kungu-0 ~ 70 °C);
Ngaphezu kwalokho, umgogodla wocingo ungahlukaniswa ube yizintambo zesinxephezelo somucu owodwa kanye ne-multi-core (i-soft wire), futhi ingahlukaniswa izintambo zesinxephezelo ezijwayelekile nezivikelekile ngokuya ngokuthi zinawo yini ungqimba oluvikelayo, futhi kukhona nezintambo zesinxephezelo. amasekhethi aphephile ngaphakathi anikezelwe ezenzakalweni zokuvikela ukuqhuma.