Cov xov hlau them rov qab yog ib khub xov hlau uas muaj ib txheej rwb thaiv tsev uas muaj tus nqi nominal tib yam li lub zog thermoelectromotive ntawm cov thermocouple sib phim hauv qee qhov kub thiab txias (0 ~ 100 ° C). Yuam kev vim qhov kub hloov pauv ntawm qhov sib tshuam. Tus editor hauv qab no yuav qhia rau koj paub tias cov xov hlau them rov qab thermocouple yog cov khoom siv dab tsi, cov xov hlau them rov qab thermocouple yog dab tsi, thiab kev faib tawm ntawm cov xov hlau them rov qab thermocouple.
1. Cov khoom siv thermocouple compensation wire yog dab tsi?
Cov hlau them nyiaj dav dav xav kom cov electrodes zoo thiab tsis zoo yuav tsum zoo ib yam li cov khoom zoo thiab tsis zoo ntawm lub thermocouple. K-hom thermocouples yog nickel-cadmium (zoo) thiab nickel-silicon (tsis zoo), yog li raws li tus qauv, nickel-cadmium-nickel-silicon compensation wires yuav tsum tau xaiv.
2. Lub luag haujlwm ntawm cov hlau thermocouple compensation yog dab tsi?
Nws yog los txuas lub electrode kub, uas yog, qhov kawg txias ntawm lub thermocouple txawb, thiab txuas nrog lub cuab yeej tso saib los tsim lub kaw lus ntsuas kub. Sib npaug txais yuav tus qauv hauv tebchaws ntawm IEC 584-3 "Thermocouple Part 3 - Compensation Wire". Cov khoom lag luam feem ntau yog siv rau hauv ntau yam khoom siv ntsuas kub, thiab tau siv dav hauv lub zog nuclear, roj av, tshuaj lom neeg, metallurgy, hluav taws xob thiab lwm lub chaw haujlwm.
3. Kev faib tawm ntawm cov xov hlau thermocouple compensation
Hauv paus ntsiab lus, nws muab faib ua hom txuas ntxiv thiab hom them nyiaj. Cov tshuaj lom neeg tsim ntawm cov hlau alloy ntawm hom txuas ntxiv yog tib yam li cov thermocouple sib phim, yog li lub peev xwm thermoelectric kuj zoo ib yam. Nws yog sawv cev los ntawm "X" hauv tus qauv, thiab cov tshuaj lom neeg tsim ntawm cov hlau alloy ntawm hom them nyiaj yog tib yam. Nws txawv ntawm cov thermocouple sib phim, tab sis nyob rau hauv nws qhov kub ua haujlwm, lub peev xwm thermoelectric yog ze rau tus nqi nominal ntawm lub peev xwm thermoelectric ntawm cov thermocouple sib phim, uas yog sawv cev los ntawm "C" hauv tus qauv.
Qhov tseeb ntawm kev them nyiaj yog muab faib ua qib ib txwm thiab qib precision. Qhov yuam kev tom qab kev them nyiaj ntawm qib precision feem ntau tsuas yog ib nrab ntawm qib ib txwm, uas feem ntau siv rau hauv cov chaw uas muaj qhov yuav tsum tau ntsuas qhov tseeb siab. Piv txwv li, rau cov xov hlau them nyiaj ntawm S thiab R cov lej kawm tiav, qhov kam rau siab ntawm qib precision yog ± 2.5 ° C, thiab qhov kam rau siab ntawm qib ib txwm yog ± 5.0 ° C; rau cov xov hlau them nyiaj ntawm K thiab N cov lej kawm tiav, qhov kam rau siab ntawm qib precision yog ± 1.5 ° C, qhov kam rau siab ntawm qib ib txwm yog ± 2.5 ° C. Hauv tus qauv, qib ib txwm tsis tau cim, thiab qib precision yog ntxiv nrog "S".
Los ntawm qhov kub ua haujlwm, nws muab faib ua kev siv dav dav thiab kev siv tiv taus kub. Qhov kub ua haujlwm ntawm kev siv dav dav yog 0 ~ 100 ° C (qee qhov yog 0 ~ 70 ° C);
Tsis tas li ntawd xwb, cov hlau tseem ceeb tuaj yeem muab faib ua cov hlau ib txoj hlua thiab ntau txoj hlua (hlau mos) cov hlau them nyiaj, thiab tuaj yeem muab faib ua cov hlau them nyiaj ib txwm thiab cov hlau tiv thaiv raws li seb lawv puas muaj txheej tiv thaiv, thiab kuj tseem muaj cov hlau them nyiaj rau cov voj voog muaj kev nyab xeeb uas mob siab rau cov xwm txheej tawg.