Thermocouple (thermocouple) yog cov khoom siv ntsuas kub uas ntsuas kub feem ntau hauv cov ntsuas cov ntsuas kub. Nws ntsuas ntsuas qhov ntsuas kub ncaj qha, hloov qhov ntsuas kub hloov mus rau hauv lub ntsuas hluav taws xob thermoelectromotive lub zog, thiab hloov nws mus rau qhov ntsuas kub ntawm qhov ntsuas nruab nrab los ntawm lub ntsuas hluav taws xob (ntsuas qhov ntsuas). Cov tsos ntawm ntau yam thermocouples feem ntau sib txawv vim xav tau, tab sis lawv cov qauv yooj yim yog qhov zoo ib yam. Lawv feem ntau yog ua los ntawm cov khoom tseem ceeb xws li kub electrodes, insulating lub tes tsho tiv thaiv cov hlab thiab lub thawv hlws ris, thiab feem ntau yog ua ke nrog cov khoom siv coj los ntsuas, sau cov twj paj nruag thiab kho kom haum hauv. Siv nyob rau hauv nrog rau cov ntaus ntawv.
Lub ntsiab Feature
1. Sib dhos yooj yim,
Cov Thermocouple (Daim Duab 2)
Cov Thermocouple (Daim Duab 2)
Yooj yim los hloov;
2. Compression caij nplooj ntoos hlav hom kub hnov lub ntsiab lus, zoo seismic kev ua tau zoo;
3. Kev ntsuas qhov tseeb;
4. Cov ntsuas loj (-200 ℃ ～ 1300 ℃, hauv cov xwm txheej tshwj xeeb -270 ℃ ～ 2800 ℃);
5. Cov sijhawm nrawm teb sai sai;
6. Muaj zog txhua yam zog thiab zoo siab kuj;
7. Cov kub siab tiv taus tuaj yeem ncav cuag 2800 degrees;
8. Kev pab lub neej ntev.
Txhawm rau ua haujlwm stably, cov qauv kev xav tau rau nws yog li hauv qab no:
1. Lub tshuab vuam ntawm ob lub thermoelectrodes tsim cov qauv thermocouple yuav tsum ruaj;
2. Lub tshuab hluav taws xob kub ob zaug yuav tsum tau zoo ib leeg los ntawm kev sib tw kom tiv thaiv luv luv Circuit Court;
3. Cov kab sib txuas ntawm cov hlau them nyiaj thiab thaum xaus ntawm cov thermocouple yuav tsum yooj yim thiab ntseeg tau;
4. Lub tes tsho tiv thaiv yuav tsum tuaj yeem ua kom paub tseeb tias cov kub electrode tag nrho cais tawm hauv nruab nrab muaj kev phom sij.
Tus Qauv Ua Haujlwm
Ob tus neeg xa khoom ntawm cov khoom sib txawv (hu ua thermocouple wires lossis thermoelectrodes) tau txuas ntawm ob xaus rau hauv lub voj. Thaum lub ntsuas kub ntawm ob lub junctions sib txawv, lub tshuab hluav taws xob yuav tsim tawm hauv lub voj. Qhov tshwm sim no yog hu ua cov nyhuv thermoelectric. Lub tshuab siv lub tshuab hluav taws xob no yog hu ua thermoelectric force. Cov thermocouples siv lub ntsiab cai no los ntsuas kev ntsuas kub. Ntawm lawv, qhov kawg siv ncaj qha los ntsuas qhov kub ntawm qhov nruab nrab yog hu ua kev ua haujlwm kawg (tseem hu ua ntsuas ntsuas), thiab lwm qhov kawg hu ua qhov xaus txias (tseem hu ua qhov them nyiaj kawg); qhov txias kawg thiab cov tso saib Thaum lub ntsuas cua los yog cov cuab yeej txhawb zog txuas nrog, cov ntsuas cov cuab yeej yuav taw qhia lub thermoelectric muaj peev xwm tsim los ntawm lub thermocouple.
Thermocouple ua tau yog ib hom kev hloov hluav taws xob, nws hloov lub zog ua hluav taws xob rau hauv lub zog hluav taws xob, thiab siv cov thermoelectric uas muaj peev xwm los ntsuas qhov ntsuas kub. Txog cov thermoelectric muaj peev xwm ntawm thermocouple, cov teeb meem hauv qab no yuav tsum them sai sai rau:
1. Lub thermoelectric muaj peev xwm ntawm lub thermocouple yog qhov kub thiab sib txawv ntawm ob hnub kawg ntawm qhov thermocouple, tsis yog kub sib txawv ntawm qhov txias thiab ua haujlwm tag ntawm thermocouple;
2. Qhov loj ntawm cov thermoelectric muaj peev xwm tsim los ntawm lub thermocouple. Thaum cov khoom siv ntawm lub thermocouple yog teeb tsa, nws tsis muaj dab tsi ua rau qhov ntev thiab txoj kab ntawm lub thermocouple, tab sis tsuas yog cuam tshuam nrog cov khoom ntawm cov khoom siv thermocouple thiab qhov kub sib txawv ntawm ob hnub;
3. Tom qab ob txoj xov hluav taws xob ntawm cov thermocouple tau txiav txim siab, thermoelectric muaj peev xwm ntawm lub thermocouple tsuas yog cuam tshuam nrog qhov kub sib txawv ntawm lub thermocouple; yog hais tias qhov ntsuas kub ntawm qhov txias txias ntawm lub thermocouple tseem nyob tas li, thermoelectric muaj peev xwm ntawm lub thermocouple tsuas yog Ib Leeg muaj nuj nqi ntawm kev ua haujlwm ntawm qhov kawg kub. Muag ob lub conductors lossis semiconductors A thiab B ntawm cov khoom sib txawv los ua lub voj kev kaw, raws li muaj nyob hauv daim duab. Thaum muaj qhov kub ntawm qhov sib txawv ntawm ob qhov txuas ntxiv 1 thiab 2 ntawm cov neeg ua yeeb yam A thiab B, lub tshuab hluav taws xob hluav taws xob tau tsim tawm nruab nrab ntawm ob, yog li tsim qhov tam sim no loj hauv lub voj. Cov thermocouples siv cov nyhuv no ua haujlwm.