Cov ntaub ntawv acoustic tuaj yeem muab faib ua cov khoom siv suab nrov thiab cov ntaub ntawv suab rwb thaiv tsev raws li lawv cov haujlwm sib txawv.Lub hom phiaj tseem ceeb ntawm kev nqus suab yog los daws cov suab nrov los ntawm kev xav ntawm lub suab.Cov khoom siv suab nrov tuaj yeem ua rau lub zog cuam tshuam ntawm qhov xwm txheej suab, thiaj li ua tiav cov txiaj ntsig kev ncaj ncees ntawm lub suab qub.Lub suab rwb thaiv tsev feem ntau daws qhov kev sib kis ntawm lub suab thiab ua rau lub cev tseem ceeb hnov suab nrov hauv qhov chaw.Lub suab rwb thaiv tsev cov ntaub ntawv tuaj yeem ua rau lub zog xa mus ntawm qhov xwm txheej suab, thiaj li ua tiav lub xeev ntsiag to ntawm qhov chaw tseem ceeb.
Ib puag ncig tus phooj ywg suab-absorbing paj rwb yog cov khoom ntxeem tau suab-absorbing.Lub suab-absorbing mechanism yog tias muaj coob tus me me interconnected pores hauv cov khoom.Raws li cov pores no, lub suab tsis tuaj yeem nkag mus tob rau hauv cov khoom siv thiab tsim kev sib txhuam nrog cov khoom siv los hloov suab lub zog rau hauv lub zog cua sov.Lub suab nqus cov yam ntxwv ntawm cov khoom ntxeem tau lub suab nrov yog tias lub suab nqus coefficient maj mam nce nrog qhov nce ntawm zaus, uas txhais tau hais tias qhov tsawg zaus nqus tsis zoo li qhov siab zaus nqus.Cov xwm txheej tsim nyog rau lub suab nqus ntawm cov ntaub ntawv ntxeem tau yog: cov khoom siv muaj ntau cov voids, cov voids yog interconnected, thiab cov pores nkag mus tob rau hauv cov khoom.
Ib qho ntawm cov kev xav tsis zoo yog tias cov ntaub ntawv uas muaj qhov ntxhib saum npoo muaj lub suab nqus, tab sis lawv tsis yog.Qhov kev nkag siab tsis zoo thib ob yog tias cov khoom siv nrog ntau qhov ntawm cov khoom siv, xws li polystyrene, polyethylene, kaw-cell polyurethane, thiab lwm yam, muaj lub suab nrov zoo.Internal vibration kev sib txhuam ntawm cov khoom, yog li lub suab nqus coefficient yog me me.
Post lub sij hawm: Feb-23-2022