Classification ntawm electromagnetic shielding

Peb electromagnetic shielding kuj muab faib ua active shielding thiab passive shielding. Passive shielding tuaj yeem nkag siab yooj yim li ib tus neeg tawm tsam peb thiab tawm tsam. Passive shielding tsuas yog thaiv cov cim sab nraud; active shielding yog ib qho teeb meem sab hauv thiab feem ntau yog siv los tiv thaiv cov teeb liab sab hauv los ntawm kev tawm. Passive shielding feem ntau yog siv rau hauv cov xwm txheej uas cov khoom tiv thaiv nyob deb ntawm qhov cuam tshuam, xws li chav tsev thaiv.
Dab tsi yog electromagnetic shielding? Lub hauv paus ntsiab lus yog dab tsi? Cov saum toj no yog tus editor cov ntsiab lus thiab kev txheeb xyuas. Kuv vam tias nws yuav pab tau koj. Zoo siab txais tos txhua tus los tawm lus rau kev sib tham.