Kev siv kev siv thermoco hauv ntau ntau yam lag luam

Thermocouples yog siv los ntsuas cua sov sov. Thermocouples Nrog Kev Kawm Lus Teb yog feem ntau raug xaiv raws li lub siab lossis qis hom phiaj kub. Yog lawm, nws tseem yuav tsum tau txiav txim siab seb qhov chaw ntsuas yog txo lossis oxidizing. Txawm li cas los xij, yog siv cov thermored thermocouples siv, Kuv tsis tau pom ntau ntau qhov kev cuam tshuam ntawm Redeb cua nyob hauv lub neej thiab kev ntsuas qhov tseeb ntawm thermocouples.

Cov cai yuav tsum tau ua ib nyuag nqaim. Feem ntau cov cua sov yuav tsum tau txuas nrog ob lub thermocouples. Ntawm lawv, tsawg kawg ib yuav tsum siv rau kev tswj kom kub thiab lwm yam rau sau cia. Vim tias peb cov txheej txheem ua haujlwm yuav tsum tau ua. Kev siv kev siv thermoco hauv ntau ntau yam lag luam

Thaum ntsib kev sib ntsib hluav taws xob loj (ntau dua 5 meters ntev), nws yuav tsum muab faib ua ob peb thaj chaw ntsuas kub rau kev ntsuas ywj siab thiab tswj. Piv txwv li, cov txheej txheem sab saud, nruab nrab thiab sab hauv qab, thiab lwm yam. Ntsuas cov hluav taws xob ua kom sov tsis tu ncua. Ntawd yog, ntau yam thermocouples (lossis lwm yam tseem ceeb hauv kev sim ua kom ntsuas qhov kub thiab txias nyob rau lub cev ua haujlwm ib txwm muaj sijhawm thiab lwm yam. Ntawd yog, txawm hais tias ntsuas kub ntawm qhov ntsuas kub tswj qhov kub thiab txias tuaj yeem sawv cev qhov ntsuas kub tiag tiag kub. Ntau yam kev ntsuas coj lawv tus kheej qhov tseem ceeb.

Thermocouples yog tsuas yog siv rau kev ntsuas thiab ntsuas.
Ntxiv mus, thermocouples yog cov twj tseem ua thawj uas hloov qhov kub thiab txias rau hauv lub peev xwm. Lub peev xwm hluav taws xob tsis muaj peev xwm yuav tsum kis tau cov cuab yeej theem nrab rau kev ua tiav, tso saib lossis luam ntawv.
Cov twj paj nruag theem nrab tau muab faib ua cov analog thiab digital hom. Tam sim no lawv mas cov digital.

Qhov ntsuas hluav taws xob txias txias txias xaus, uas suav nrog lub tshuab hluav taws xob kub siab tshiab tingry Tus txheej txheem ua hauj lwm ntawm thermocouple yog los tsim lub peev xwm hluav taws xob sib txawv raws li qhov sib txawv ntawm qhov kub thiab txias kawg thiab txias. Vim tias qhov ntsuas kub ntawm qhov kawg yog feem ntau tsis 0 degree thaum ntsuas kev ntsuas tiag tiag, ntsuas hluav taws xob yuav tsum tau ntsuas kub. Kev them nqi thermocouple kub yog li nram no:

E (t, 0) = E (t, t0) + E (t0, 0)

Ntawm lawv, e (t {{{{{0}} {{{{} sawv cev {5}} degree. Hauv qhov ntsuas kub sov, txij li thaum sov txias ntawm thermocouple feem ntau tsis}}} degree, tab sis hloov thermoelectric peev xwm yog e (t, t}). If you want to measure the thermoelectric potential E (t, 0) ​​corresponding to the actual measured temperature, you must compensate for the compensation potential E (t0, {{10}}) required for the cold end not to be 0 degree . Ntxiv mus, cov yam ntxwv ntawm cov nyiaj them tuaj yeem hloov nrog qhov txias txias yuav tsum muaj nrog cov thermocouple, yog li kom tau txais cov nyiaj tau zoo dua. Nov yog daim duab txheej txheem hluav taws xob rau thermocouple txias qhov kawg them. Qhov ntsuas kub Sensor Tual .. Lub voltage tso tawm los ntawm T.mp35 tau muab faib ua ntej los ntawm ib tug resistor thiab tom qab ntawd amplified los ntawm kev tshaj tawm, uas yog E (T0, O) coj mus rau K-hom thermocouple.