Dab tsi yog qhov txawv ntawm Hom E thiab Hom T thermocouples
Tso lus
Qhov sib txawv tseem ceeb ntawm Hom E thiab Hom T thermocouples nyob rau hauv lawv cov khoom muaj pes tsawg leeg, qhov kub thiab txias, cov yam ntxwv rhiab heev, kev hloov pauv ib puag ncig, thiab cov ntawv thov raug xwm txheej. Lawv sawv cev rau ob txoj hauv kev hauv kev ntsuas kub hauv kev lag luam: "siab-rhiab nruab nrab- kub hom" thiab "siab-precision low-temperature mob siab rau hom," feem. Hom E thermocouples paub tias muaj qhov muaj peev xwm ua tau zoo tshaj plaws ntawm cov khoom siv hluav taws xob zoo tshaj plaws ntawm txhua tus qauv thermocouples, ua rau lawv tsim tshwj xeeb rau kev kuaj xyuas qhov kub hloov pauv. Hom T thermocouples, ntawm qhov tod tes, ua kom pom kev ruaj ntseg thiab raug nyob rau hauv -200 ~ 0℃qis- qhov kub thiab txias thiab tau dav siv hauv qhov ntsuas kub qis thiab qhov ntsuas kub ntawm qhov ntsuas kub.
I. Cov Khoom Siv: Nickel-Chromium-Copper-Nickel vs. Copper-Constantan
Hom E thermocouples (Nickel-Chromium-Copper-Nickel/Constantan)) muaj nickel-chromium alloy (EP) raws li cov electrode zoo thiab tooj liab-nickel alloy (EN) raws li cov electrode tsis zoo, tseem hu ua constantan, belongs rau qeb hlau. Lawv cov khoom sib xyaw ua ke ua rau lawv muaj peev xwm ua tau zoo thermoelectric thiab zoo oxidation tsis kam.
Hom T thermocouple (tooj liab-constantan): Qhov zoo electrode yog tooj liab ntshiab (TP), thiab qhov tsis zoo electrode yog tooj liab -nickel alloy (TN). Nws siv tib yam khoom tsis zoo electrode li Hom E, tab sis cov khoom siv electrode zoo sib txawv. Hom T thermocouples yog qhov zoo dua rau qhov ntsuas kub qis - vim tias tooj liab thiab qhov tsis sib xws muaj peev xwm muaj peev xwm tawm ntawm qhov kub tsawg.
Xaus: Hom E yog qhov tsim nyog rau cov xwm txheej uas xav tau cov teeb liab tso zis siab; Hom T, vim nws cov khoom tsis sib xws, yog hloov tsis tau nyob rau hauv qhov qis - qhov kub thiab txias.
II. Temperature Range Comparison: Hom E muaj ntau qhov kub thiab txias, Hom T tsom rau qhov kub thiab txias
Rooj: Hom | Ntev -lub sijhawm ua haujlwm kub | Luv -lub sij hawm kam rau siab kub | Kev ntsuas tau zoo |
Hom E | 900 degree | 1000 degree | -270 ~ 900 degree |
Hom T | 300 degree | 350 degree | -270 ~ 350℃Hom E npog ntau yam los ntawm cryogenic mus rau nruab nrab qhov kub thiab txias, ua kom pom kev ruaj khov tshwj xeeb hauv 0 ~ 900℃ntau yam, ua rau nws haum rau ntau yam kev siv. |
Hom T thermocouples muaj qhov ntsuas kub qis dua; saum toj 350 degree, tooj liab cathode yog nquag oxidation thiab tawg. Txawm li cas los xij, lawv qhov kev ruaj ntseg txhua xyoo hauv -200 ~ 0℃ntau dua yog tsawg dua ± 3μV, thiab lawv feem ntau siv los ua tus qauv thib ob rau kev hloov pauv qhov kub thiab txias.
Lus Cim: Hom T thermocouples tsis tuaj yeem siv nyob rau hauv siab - qhov kub thiab txias; Hom E thermocouples raug txwv nruj heev los ntawm kev siv sulfur-muaj lossis txo cov huab cua.
III. rhiab heev thiab teeb liab tso zis yam ntxwv
Hom E Thermocouples: Nrog lub peev xwm ntawm qhov ntsuas kub siab txog li 68μV / degree, lawv muaj qhov siab tshaj plaws ntawm txhua tus qauv thermocouples, ua rau lawv zoo tagnrho rau kev ntsuas qhov ntsuas kub sib txawv. Lawv kuj tau siv dav hauv cov qauv thermopile rau kev kuaj pom infrared lossis micro- ntsuas qhov ntsuas qhov sib txawv.
Hom T Thermocouples: Nrog rau qhov ntsuas kub ntawm kwv yees li 43μV / degree, txawm hais tias qis dua Hom E, lawv cov kab sib txawv ntawm -200 ~ 0℃ntau dua yog tsawg dua ± 0.5%, nthuav tawm cov khoom tsim tau zoo thiab ruaj khov, ua rau lawv haum rau kev ntsuas qhov ntsuas siab dua.
Piv txwv piv txwv: Ntawm 100 degree, E- hom tso zis yog kwv yees li 6.3mV, thaum T- hom yog kwv yees li 4.3mV. Hom E- hom muaj lub teeb liab muaj zog dua thiab haum rau cov tshuab tsis muaj lub suab nrov.
IV. Environmental Adaptability thiab kev txwv kev siv
Rooj Environmental Type | E- hom Kev Ua Haujlwm | T-type Performance |
Oxidizing Atmosphere | Siv tau, oxidation zoo dua li J / T hom | Siv tau, tab sis siab -kub oxidation yuav tsum zam |
Txo Huab Cua | Tsis tuaj yeem siv ncaj qha, yooj yim degraded | Siv tau, tiv taus H₂ thiab CO corrosion |
Inert/Vacuum Ib puag ncig | Siv tau | Siv tau, ruaj khov kev ua haujlwm |
Humidity Ib puag ncig | Tsis rhiab rau high humidity | Moisture resistant, haum rau cov tub yees tshuab |
Ntev - Lub Sij Hawm Stability | Nruab nrab, tsis zoo thermoelectric tej zaum uniformity | Zoo heev ntawm qhov kub thiab txias, qis txhua xyoo drift |
Kev pom zoo: E- hom yog tsim rau kev ua kom tsis muaj menyuam, tshuaj xyuas ib puag ncig, thiab lwm yam xwm txheej uas yuav tsum tau teb siab; lub T- hom yog haum rau cov kws kho mob khaub thuas saw, biological incubators, thiab lwm yam teb uas yuav tsum tau high precision.
V. Kev sib piv ntawm Cov Ntawv Thov Kev Sib Tham
Hom E Thermocouple: Siv dav hauv cov chaw lag luam uas xav tau cov lus teb sai thiab muaj kev nkag siab zoo, xws li cov tshuaj reactors, roj refineries, kab ua zaub mov, thiab ib puag ncig kub tswj systems. Vim nws cov teeb liab tso zis loj, nws kuj nquag siv hauv kev qhia kev sim thiab cov cuab yeej nqa tau yooj yim.
Hom T Thermocouple: Feem ntau siv rau hauv cov ntawv thov uas xav tau siab heev tsawg - qhov kub thiab txias, xws li cov chaw muag tshuaj txias, kuaj cryogenic, khoom noj khoom haus khov, thiab cov ntsuas kub hauv chav kuaj. Vim nws txoj kev ruaj ntseg zoo, nws kuj tau siv ntau zaus los ua qhov ntsuas ntsuas ntsuas thermocouple rau cov twj paj nruag.
