Lub luag haujlwm tseem ceeb ntawm cov ntaub ntawv cable yog xa cov ntaub ntawv teeb liab. Tab sis thaum peb siv nws tiag tiag, tej zaum yuav muaj txhua yam ntaub ntawv cuam tshuam cuam tshuam. Cia peb xav txog yog tias cov teeb meem cuam tshuam no nkag mus rau sab hauv tus neeg xyuas pib ntawm cov ntaub ntawv cable thiab tau muab tso rau ntawm lub teeb liab kis tau los, nws puas tuaj yeem cuam tshuam lossis hloov cov teeb liab kis tau los, yog li ua rau poob ntawm cov teeb meem tseem ceeb lossis teeb meem?
Kab
Cov txheej braided thiab aluminium foil txheej tiv thaiv thiab thaiv cov ntaub ntawv xa mus. Tau kawg tsis yog tag nrho cov ntaub ntawv cables muaj ob txheej thaiv, qee qhov muaj ntau txheej thaiv, qee qhov tsuas muaj ib qho, lossis tsis muaj txhua. shielding txheej yog ib qho hlau cais ntawm ob cheeb tsam spatial los tswj qhov induction thiab hluav taws xob ntawm hluav taws xob, sib nqus thiab electromagnetic tsis ntawm ib cheeb tsam mus rau lwm qhov.
Tshwj xeeb, nws yog ib puag ncig tus neeg xyuas pib cores nrog cov ntaub thaiv npog los tiv thaiv lawv los ntawm kev cuam tshuam los ntawm sab nraud electromagnetic teb / cuam tshuam cov teeb liab, thiab tib lub sijhawm los tiv thaiv kev cuam tshuam electromagnetic fields / teeb liab hauv cov xov hlau los ntawm kev nthuav tawm sab nraud.
Feem ntau hais lus, cov cables peb tab tom tham txog feem ntau suav nrog plaub yam ntawm cov hlua hluav taws xob insulated, twisted khub, shielded cables thiab coaxial cables. Plaub hom cables no siv cov khoom sib txawv thiab muaj ntau txoj hauv kev los tiv thaiv electromagnetic cuam tshuam.
Cov qauv twisted khub yog feem ntau siv hom kab qauv. Nws cov qauv yog qhov yooj yim, tab sis nws muaj peev xwm ua kom sib npaug sib npaug ntawm kev cuam tshuam electromagnetic. Feem ntau hais lus, qhov siab dua qhov sib tw ntawm nws cov xov hlau sib tw, qhov zoo dua qhov kev tiv thaiv kev ua tiav. Cov khoom siv sab hauv ntawm cov shielded cable muaj cov haujlwm ntawm kev coj los yog kev sib nqus hlau nplaum, thiaj li tsim kom muaj cov ntaub thaiv npog thiab ua tiav qhov zoo tshaj plaws los tiv thaiv kev cuam tshuam. Muaj cov hlau thaiv txheej hauv coaxial cable, uas feem ntau yog vim nws cov ntaub ntawv sau sab hauv, uas tsis yog tsuas yog muaj txiaj ntsig zoo rau kev sib kis ntawm cov teeb liab thiab txhim kho cov nyhuv shielding zoo heev. Niaj hnub no peb yuav tham txog cov hom thiab kev siv ntawm cable shielding cov ntaub ntawv.
Aluminium foil Mylar daim kab xev: Aluminium ntawv nyiaj Mylar daim kab xev yog ua los ntawm txhuas ntawv ci raws li cov khoom siv hauv paus, polyester zaj duab xis ua cov khoom siv txhawb zog, sib txuas nrog polyurethane kua nplaum, kho ntawm qhov kub thiab txias, thiab tom qab ntawd txiav. Aluminium ntawv nyiaj Mylar daim kab xev yog tsuas yog siv nyob rau hauv shielding screen ntawm kev sib txuas lus cables. Aluminium ntawv nyiaj Mylar daim kab xev muaj xws li ib leeg-sab txhuas ntawv ci, ob-sided aluminium ntawv ci, finned aluminium ntawv ci, kub-melt aluminium ntawv ci, aluminium ntawv ci daim kab xev, thiab txhuas-yas composite daim kab xev; aluminium txheej muab cov khoom siv hluav taws xob zoo heev, tiv thaiv thiab tiv thaiv corrosion, tuaj yeem hloov mus rau ntau yam kev xav tau.
Aluminium ntawv nyiaj Mylar daim kab xev
Aluminium ntawv nyiaj Mylar daim kab xev yog tsuas yog siv los tiv thaiv high-frequency electromagnetic vuag los tiv thaiv high-frequency electromagnetic vuag los ntawm kev tiv tauj cov conductors ntawm cable los tsim induced tam sim no thiab nce crosstalk. Thaum lub high-frequency electromagnetic yoj kov lub txhuas ntawv ci, raws li Faraday txoj cai ntawm electromagnetic induction, lub electromagnetic yoj yuav adhering rau saum npoo ntawm txhuas ntawv ci thiab tsim ib tug induced tam sim no. Lub sijhawm no, tus neeg xyuas pib yuav tsum tau coj cov induced tam sim no rau hauv av kom tsis txhob muaj qhov cuam tshuam tam sim no los ntawm kev cuam tshuam nrog cov teeb liab kis.
Braided txheej (hlau thaiv) xws li tooj liab / aluminium-magnesium alloy hlau. Hlau shielding txheej yog tsim los ntawm cov hlau xaim nrog cov qauv braiding los ntawm cov khoom siv braiding. Cov ntaub ntawv ntawm cov hlau thaiv kev tiv thaiv feem ntau yog tooj liab xov hlau (tinned tooj liab xov hlau), txhuas hlau hlau, tooj liab-clad txhuas hlau, tooj liab daim kab xev (yas coated steel daim kab xev), txhuas daim kab xev (yas coated txhuas daim kab xev), steel daim kab xev thiab lwm yam ntaub ntawv.
Tooj Liab
Raws li cov hlau braiding, cov txheej txheem sib txawv muaj qhov sib txawv tiv thaiv kev ua haujlwm, kev tiv thaiv kev ua haujlwm ntawm cov txheej braided tsis yog tsuas yog cuam tshuam rau cov hluav taws xob conductivity, sib nqus permeability thiab lwm yam kev ua haujlwm ntawm cov khoom hlau nws tus kheej. Thiab cov khaubncaws sab nraud povtseg ntau dua, qhov ntau dua qhov kev tiv thaiv, qhov me me ntawm lub braiding lub kaum sab xis, thiab qhov zoo dua qhov kev tiv thaiv ntawm cov txheej braided. Lub kaum sab xis braiding yuav tsum tau tswj ntawm 30-45 °.
Rau ib-txheej braiding, qhov kev pab them nqi yog qhov zoo tshaj 80%, yog li nws tuaj yeem hloov mus rau lwm hom ntawm lub zog xws li lub zog kub, lub zog muaj peev xwm thiab lwm yam ntawm lub zog los ntawm hysteresis poob, dielectric poob, tsis kam tiv taus, thiab lwm yam. , thiab siv lub zog tsis tsim nyog kom ua tiav cov txiaj ntsig ntawm kev tiv thaiv thiab nqus cov nthwv dej electromagnetic.
Post lub sij hawm: Dec-15-2022