Electromagnetic yoj absorbent khoom yog hais txog ib hom khoom uas tuaj yeem nqus tau lossis txo cov hluav taws xob nthwv dej ntawm lub zog uas tau txais ntawm nws qhov chaw, yog li txo qhov cuam tshuam ntawm electromagnetic tsis.Nyob rau hauv engineering daim ntaub ntawv, ntxiv rau yuav tsum tau siab nqus ntawm electromagnetic tsis nyob rau hauv ib tug dav zaus band, cov khoom absorbing kuj yuav tsum muaj lub teeb yuag, kub tsis kam, humidity kuj, thiab corrosion kuj.

Nrog rau txoj kev loj hlob ntawm kev tshawb fawb thiab thev naus laus zis niaj hnub no, qhov cuam tshuam ntawm hluav taws xob hluav taws xob hluav taws xob ntawm ib puag ncig yog nce.Nyob rau hauv tshav dav hlau, lub davhlau tsis tuaj yeem tawm vim muaj kev cuam tshuam ntawm electromagnetic yoj, thiab nws yuav qeeb;hauv tsev kho mob, xov tooj ntawm tes feem ntau cuam tshuam nrog kev ua haujlwm ib txwm muaj ntawm ntau yam kev kuaj mob hluav taws xob thiab khoom siv kho mob.Yog li ntawd, kev kho mob ntawm electromagnetic pollution thiab nrhiav cov khoom siv uas tuaj yeem tiv taus thiab tsis muaj zog electromagnetic yoj hluav taws xob-absorbing cov ntaub ntawv tau dhau los ua qhov teeb meem loj hauv cov ntaub ntawv tshawb fawb.

Electromagnetic hluav taws xob ua rau tib neeg lub cev puas tsuaj ncaj qha thiab tsis ncaj los ntawm thermal, tsis-thermal, thiab cumulative cuam tshuam.Cov kev tshawb fawb tau lees paub tias ferrite absorbing cov ntaub ntawv muaj qhov ua tau zoo tshaj plaws, uas muaj cov yam ntxwv ntawm kev nqus ntau zaus band, siab nqus tau, thiab nyias nyias thickness.Kev siv cov khoom siv no rau cov khoom siv hluav taws xob tuaj yeem nqus cov hluav taws xob hluav taws xob xaim hluav taws xob thiab ua tiav lub hom phiaj ntawm kev tshem tawm electromagnetic cuam tshuam.Raws li txoj cai ntawm electromagnetic nthwv dej propagating nyob rau hauv nruab nrab los ntawm tsawg sib nqus mus rau high magnetic permeability, siab magnetic permeability ferrite yog siv los coj electromagnetic tsis, los ntawm resonance, ib tug loj npaum li cas ntawm radiant zog ntawm electromagnetic tsis yog absorbed, thiab ces lub zog ntawm lub electromagnetic tsis. electromagnetic nthwv dej yog hloov dua siab tshiab rau hauv tshav kub zog los ntawm coupling.

Hauv kev tsim cov khoom siv absorbing, ob qhov teeb meem yuav tsum tau xav txog: 1) Thaum lub electromagnetic nthwv dej ntsib cov khoom siv absorbing, dhau los ntawm qhov chaw kom ntau li ntau tau los txo qhov kev xav;2) Thaum lub electromagnetic nthwv dej nkag mus rau sab hauv ntawm cov khoom siv absorbing, ua rau lub electromagnetic yoj poob lub zog ntau li ntau tau.

Hauv qab no yog cov muaj Electromagnetic yoj nqus cov khoom siv raw khoom hauv peb lub tuam txhab:

1).carbon-based absorbing cov ntaub ntawv, xws li: graphene, graphite, carbon nanotubes;

2).hlau-raws li absorbing cov ntaub ntawv, xws li: ferrite, hlau nplaum hlau nanomaterials;

3).ceramic absorbing cov ntaub ntawv, xws li: silicon carbide.