Dab tsi yog cov hom thermocotres yog dab tsi?

1. K-hom Thermocouple Nickel Kev Chromium (Nickel Silicon (Nickel Txhuas) Thermocouple)
K-hom Thermocouple yog lub hauv paus hlau thermocouple nrog muaj zog oxidation tiv, uas tuaj yeem ntsuas ntsuas kub ntawm {}} mus rau 1300 degree. Nws yog qhov haum rau kev siv tas mus li hauv oxidizing thiab inert siv roj, nrog lub sijhawm luv luv siv ntawm 1200 kev siv ntsuas kub ntawm 1000 degree. Qhov kev sib raug zoo ntawm nws thermoelectric muaj peev xwm thiab kub yog kwv yees linear, thiab nws yog tam sim no dav siv thermocouple. Txawm li cas los xij, nws tsis haum rau cov xaim xaim xaim hauv lub tshuab nqus tsev, cov pa roj muaj, cov pa roj carbon monomating, thiab hloov cov oxidation-txo cov cua; Thaum cov pa oxygen ib nrab yog tsawg, chromium nyob rau hauv npib tsib xas hluav taws xob elidode, ua rau muaj kev hloov loj hauv thermoelectric muaj peev xwm. Txawm li cas los xij, tus cawv ntawm cov roj hlau ntawm nws yog qhov me me, yog li cov hlab hlau tiv thaiv feem ntau siv.
Qhov tsis zoo ntawm K-hom thermocouple:
(1) Lub siab-kub ruaj khov ntawm thermoelectric peev xwm yog qhov tsis txaus siab rau qhov n-hom hlau thermoco thermoco thermocupures (xws li ntau dua 1000 degree);
(2) Lub sij hawm luv luv thermal cycling ruaj khov tsis zoo nyob rau hauv cov kab ke kub thiab muaj kev sib txawv, thiab qhov txawv tuaj yeem ncav cuag {}} degree;
(3) Qhov tsis zoo electrode undergoes hloov pauv tsis pub dhau qhov kub thiab txias, ua rau muaj kev sib txawv ntawm cov chav ntsuas kub hauv chav sov li ntawm 230 degree. Tshwj xeeb tshaj yog thaum siv nyob rau hauv ib qho chaw sib nqus, lub sijhawm ywj pheej thermoelectric cuam tshuam feem ntau tshwm sim;
(4) Lub sijhawm ntev dhau los ua rau highput system iradiation ib puag ncig tuaj yeem ua rau kev hloov pauv ntawm cov khoom tsis zoo (mn) nyob rau hauv qhov tsis zoo electrode, uas ua rau muaj kev ruaj khov tsis zoo.

2. S-hom thermocouple (platinum Rhodium 10 Platinum thermocouple)
Qhov zoo electrode yog tsim los ntawm platinum Rhodium rhodium alloy muaj 10% rho tawm, thiab qhov tsis zoo electrode yog ntshiab platinum.
Nws cov yam ntxwv yog:
(1) ruaj khov thermoelectric kev ua tau zoo, haum rau kev siv txuas ntxiv mus, siv qhov ntsuas khiav tawm tau tuaj yeem ncav cuag 1300 degree. Txawm nyob rau hauv huab cua, ntshiab platinum xaim yuav recrystone, ua rau coarse nplej thiab tawg thaum tshaj 1400 degree;
(2) qhov ntsuas siab, nrog qhov tseeb qib ntawm * * Ntawm txhua qhov thermocouples, feem ntau yog siv los ua tus qauv lossis ntsuas ntsuas qhov ntsuas kub siab dua;
(3) Siv tau dav, nrog kev sib luag zoo thiab sib hloov pauv;
(4) Lub ntsiab tseem ceeb yog: cov peev txheej sib txawv yog qhov me me, ua rau muaj kev rhiab tsawg; Kim nqe, tsawg cov tshuab zog muaj zog, tsis yog
Haum rau kev siv nyob rau hauv kev txo cov cua lossis cov xwm txheej nrog cov hlau vapor.

3. E-hom thermocouple (Nickel chromium tooj liab npib tsib xee [constantan] thermocouple)
E-type thermocouple is a relatively new product, with nickel chromium alloy as the positive electrode and copper nickel alloy (constantan) as the negative electrode. Nws * * Feature yog tias nyob rau hauv feem ntau siv thermocouples, nws thermoeltric muaj peev xwm * *, piv txwv li rhiab * *; Txawm hais tias nws daim ntawv thov ntau tsis yog li K-hom thermocouple, nws feem ntau raug xaiv nyob rau hauv cov xwm txheej uas yuav tsum muaj siab zoo, thiab kev ua siab ntev rau siab tiv taus siab; Cov kev txwv tsis pub siv thaum siv yog tib yam li cov K-hom, tab sis nws tsis rhiab heev rau kev xeb hauv ib cheeb tsam uas muaj cov av noo ntau dua.

4. N-hom thermocouple (npib chromium silicium tsibckel silicon thickocouple)
Lub ntsiab nta ntawm thermocouple yog: muaj qhov kub thiab txias thiab ua haujlwm ntev ntev thiab lub sijhawm ntev kev ua haujlwm zoo thiab luv luv mus rau kev ua haujlwm nuclear thiab qhov kub tsawg. Tsis tas li ntawd, nyob rau hauv thaj tsam ntawm {{3} degree, cov kab ke ntawm cov n-hom thermocouples yog qhov zoo dua li ntawm K-hom thermocouples; Txawm li cas los xij, qhov yuam kev nonlineear yog qhov loj nyob rau hauv qhov kub tsawg ({}} ~ 400 degree), thiab cov khoom siv nyuaj thiab nyuaj rau cov txheej txheem.

5. J-hom thermocouple (hlau constantan thermocouple)
J-hom thermocouple: qhov zoo electrode ntawm thermocouple yog cov hlau ntshiab, thiab cov tsis zoo electrode yog constantan (tooj liab Nickel alloy). Nws yog tus cwj pwm los ntawm nws tus nqi qis thiab yog haum rau lub tshuab nqus eesidation txo lossis inert cua. Qhov ntsuas kub ntau yog los ntawm -200}, tab sis feem ntau siv tau 5000 degree, vim tias dhau ntawm qhov kub thiab txias ntawm cov ferroelectric electrode yog nrawm. Yog tias tuab txoj kab uas siv cov kab hlau siv, nws tseem tuaj yeem siv tau ntawm qhov kub thiab muaj kev pab ntau dua; Qhov thermocouple no muaj peev xwm nrog kev txwv tsis pub corrosion los ntawm hydrogen (H2) thiab tsis tuaj yeem siv rau hauv qhov kub thiab txias (xws li 500 degree) uas muaj (s) atmospheres.

6. T-hom thermocouple (tooj liab tooj liab npib thermocouple)
T-hom thermocouple: qhov zoo electrode ntawm Thermocouple yog tus ntshiab tooj liab, thiab qhov tsis zoo electrode yog tooj liab nonoy alloy (tseem hu ua constantan). Nws cov yam ntxwv tseem ceeb yog:
Hauv paus cov hlau tho kev, nws qhov tseeb thiab kev sib xyaw ntawm cov thermoelectric electrode yog qhov zoo; Nws kev ua haujlwm kub yog -200} ~ 350 degree. Vim yog qhov yooj yim oxidation thiab detachment ntawm oxide zaj duab xis ntawm tooj liab kub electrode, nws yuav tsum feem ntau tsis tshaj 300 degree thaum siv hauv oxidizing huab cua. Tsis pub dhau ntawm thaj tsam ntawm -200 ~ 300 degree, lawv muaj qhov siab siab dua. Lwm tus cwj pwm ntawm tooj liab constantan thermoounles yog tias lawv pheej yig thiab yog cov pheej yig tshaj ntawm ntau cov qauv qauv.

7. R-hom thermocouple (platinum Rhodium 13 Platinum Thermocouple)
Qhov zoo electrode yog tsim los ntawm 13% Platinum rhodium alloy, thiab qhov tsis zoo electrode yog ntshiab platinum. Piv nrog S-hom, nws cov peev xwm yog li 15% siab dua, thiab nws lwm cov khoom yuav luag zoo ib yam. Hom thermocouple yog dav siv nyob rau hauv kev lag luam Nyij Pooj yog qhov ntsuas kub thermocouple, thaum nws tsis tshua siv hauv Suav teb.