Twisted khub thermocouple cables txais ob txoj kev sib tw twist (clockwise thiab counterclockwise) rau qhov zoo thiab tsis zoo hlau hlau, uas yog ib qho tseem ceeb structural tsim parameter ze ze rau electromagnetic nrov offset efficiency. Ntau tus nqi qis dua - tus nqi tom qab muag khoom thermocouple cov tuam txhab tsis quav ntsej txog kev sib tw sib tw txoj cai, siv ib qho - kev taw qhia unidirectional twisting, uas ua rau cov khub twisted tsis muaj peev xwm los tawm tsam induced electromotive quab yuam, uas ua rau muaj kev kub ntxhov dhia nyeem ntawv txawm tias ua tiav tooj liab braided shielding txheej. Qhia meej txog kev tiv thaiv-txoj cai cuam tshuam ntawm bidirectional opposite twisting thiab unified procurement qauv tuaj yeem txhim kho cov teeb liab stability ntawm analog thermocouple cables.
Lub hauv paus los tiv thaiv - cuam tshuam txoj cai ntawm qhov sib txawv - kev taw qhia twisted khub: Hloov cov hlau nplaum sib nqus tsim los ntawm lub tshuab hluav taws xob hluav taws xob thiab servo motors induce sib npaug- magnitude reverse induced voltages ntawm qhov zoo thiab tsis zoo ntawm cov thermocouple xov hlau. Thaum ob lub xov hlau yog twisted clockwise thiab counterclockwise alternately, qhov induced voltage generated ntawm txhua qhov uas nyob ib sab twisted ntu offsets ib leeg, thiab tag nrho cov cuam tshuam teeb liab kis mus rau lub kub maub los yog minimized. Yog hais tias qhov zoo thiab qhov tsis zoo ntawm cov xov hlau ntswj nyob rau hauv tib qho kev taw qhia, qhov induced voltage ntawm ob lub xov hlau accumulates nyob rau hauv tib txoj kev es tsis txhob offsetting, tsim ib tug muaj zog cuam tshuam teeb liab superimposed rau lub zoo millivolt thermoelectric teeb liab, ua rau kom kub tsis tu ncua hloov ntawm ± 3 ~ 6℃ntawm tus maub los zaub. Qhov teeb meem no tsis tuaj yeem raug tshem tawm tag nrho txawm tias los ntawm kev ua kom lub braiding ceev ntawm txheej thaiv txheej, vim hais tias cov teeb liab cuam tshuam tau tsim nyob rau hauv cov twisted khub core xov hlau ua ntej dhau los ntawm shielding mesh.
Peb qhov kev faib tawm ntawm cov qauv sib tw thiab cov xwm txheej siv tau:
1. Bidirectional cross opposite twisting (industrial high - qauv configuration): zoo hlau clockwise twist, tsis zoo hlau counterclockwise twist, nrog uniform sib npaug twist suab. Cov qauv no ua kom muaj qhov ua kom muaj hluav taws xob ntau tshaj plaws, lim ntau dua 90% ntawm cov pa qis- zaus sib nqus teb cuam tshuam los ntawm cov cua sov cables, thiab yog tus qauv tsim nyog rau tsheb, kev kho mob thiab tag nrho - hluav taws xob txhaj tshuab pwm thermocouple cables. Txawm tias nyob rau hauv tuab ntau-valve gate electromagnetic cylinder thaiv ib puag ncig, qhov kub hloov pauv tuaj yeem tswj tau li ntawm ± 1 degree. Cov txheej txheem ntau lawm ntawm bidirectional twisting yog complex, yuav tsum tau tshwj xeeb hlau twisting khoom, yog li tus nqi cable yog me ntsis siab dua unidirectional twisted khoom.
2. Ib qho -kev taw qhia tsis tu ncua twisting (nruab nrab nruab nrab- qauv teeb tsa): Ob qhov zoo thiab qhov tsis zoo ntawm cov xov hlau ntswj clockwise nrog ib qho sib tw twist, tsuas yog haum rau ib leeg yooj yim - kab noj hniav pwm nrog ywj siab cais hlau grooves thiab ob peb lub siab - tam sim no fais fab kab. Kev tiv thaiv - cuam tshuam kev ua tau zoo yog txo los ntawm ze li ib nrab piv nrog bidirectional cross twisting; Thaum muab cov kab sib txuas rau cov kab hluav taws xob cua sov, qhov pom tseeb ntawm qhov kub thiab txias yuav tshwm sim, thiab ntxiv ob npaug - txheej aluminium foil composite shielding yuav tsum tau ua kom muaj qhov tsis xws luag. Feem ntau nruab nrab -ntau yam khoom ntim khoom ntim pwm thermocouple cables txais yuav cov qauv no kom sib npaug cov nqi tsim khoom thiab kev tiv thaiv kev cuam tshuam rau- kev thov.
3. Kev tsis sib xws random unidirectional twisting (inferior low-tus nqi configuration): Lub twist pitch yog tsis sib xws, thiab qhov zoo thiab tsis zoo xov hlau yog random raug mob yam tsis muaj kev taw qhia thiab qhov sib txawv. Lub induced voltage tsis tuaj yeem tsim kev ua haujlwm zoo, thiab kev tiv thaiv - muaj peev xwm cuam tshuam tsis zoo. Txawm hais tias nrog tuab tooj liab braided shielding, kub nyeem ntawv dhia ua nruj ua tsiv tom qab kev teeb tsa ntawm ntau- kab noj hniav ntau- cheeb tsam kub khiav pwm, uas yog qhov feem ntau cov qauv tsis xws luag ntawm pheej yig thermocouple cables circulating tom qab muag khoom.
Txhawb kev sib txuam cov cai ntawm twist kev taw qhia thiab thaiv cov khaubncaws sab nraud povtseg. Bidirectional cross twisted cores tuaj yeem ua ke nrog ib zaug - txheej tooj liab braided shielding rau nruab nrab - cuam tshuam qhov chaw tsim khoom; pwm nrog ultra- muaj zog hluav taws xob hluav taws xob hluav taws xob (ntau- solenoid valve rooj vag, siab- lub zog zaus hloov pauv, puv - hluav taws xob txhaj tshuaj molding tshuab) xav tau bidirectional twisted core ntxiv rau ob - txheej aluminium foil composite shielding kom paub puv -frequency filtering Ib qho -kev taw qhia twisted core xov hlau yuav tsum tau nruab nrog ob- txheej txheej tiv thaiv kom them nyiaj rau qhov tsis txaus sab hauv lub peev xwm, thiab tag nrho cov kab tuab yuav nce raws li, ua rau tsis yooj yim rau nqaim pwm sab hauv thaiv. Cov kab hluav taws xob tsis sib xws tsis raug txwv rau txhua qhov kev tsim khoom kub kub khiav pwm, tsis hais txog kev tiv thaiv txheej txheej, thiab tsuas yog siv tau rau ib ntus pwm sim luv luv txuas tsawg dua 2 meters yam tsis muaj cov kab hluav taws xob tuab.
Kev tshuaj xyuas sai sai ntawm kev txheeb xyuas cov kev taw qhia twist yam tsis muaj cov cuab yeej tshaj lij. Txiav ib tug 20cm ntev cable qauv, strip tawm sab nrauv shielding thiab rwb thaiv tsev txheej kom nthuav tawm qhov zoo thiab tsis zoo alloy cores nyob ntawm tej, kho ib kawg ntawm cable thiab soj ntsuam cov winding kev taw qhia ntawm ob lub xov hlau nyob rau hauv lub cable ntev. Yog hais tias ib tug hlau cua clockwise thiab lwm counterclockwise alternately, nws yog tsim nyog bidirectional hla twisting; yog tias ob lub xov hlau cua clockwise tag nrho txoj kev, nws yog ib qho - kev taw qhia twisting; Yog hais tias lub winding spacing thiab kev taw qhia yog chaotic thiab tsis xwm yeem, nws yog inferior random twisting. Thaum customizing thermocouple cables los ntawm cov neeg muag khoom, kos kom meej qhov yuav tsum tau ntawm bidirectional opposite cross twisting nyob rau hauv cov ntaub ntawv specifications, thiab teem caij soj ntsuam ntawm twist kev taw qhia thaum lub sij hawm tau txais kom tsis txhob xa cov tsis tshua muaj anti- cuam tshuam ib leeg- kev taw qhia twisted cables.
Unified bidirectional cross opposite twisted khub tub ntxhais hlau tsim tshem tawm electromagnetic cuam tshuam los ntawm lub teeb liab kis tau tus mob nyob rau hauv, txo cov dependence rau siab - nqi tuab composite shielding khaubncaws sab nraud povtseg, ntsuas cable procurement nqi thiab ntev -lub sij hawm kub teeb liab stability rau kub khiav ntau lawm kab.
