Ngoku ngophuhliso oluqhubekayo loluntu, ingxolo iye yaba yenye yezona zinto ziphambili zongcoliseko lokusingqongileyo, ke ngoku ingxaki yokusingqongileyo yesakhiwo esisingqongileyo ngakumbi nangakumbi ingqalelo kunye nengqalelo, khetha isandi esifanelekileyo.ibhodi yokufunxaukwakha unyango ukufunxa isandi yeyona ixhaphakileyo kusetyenziswa ulawulo lobunjineli isakhiwo ingxolo enye yeyona milinganiselo zobugcisa ezisisiseko.
Umahluko phakathi kokufunxa isandi sezinto eziphathekayo kunye nokufakwa kwesandi sezinto eziphathekayo kukuba ukufunxwa kwesandi kugxininise kubukhulu be-reverse sound energy kwicala lomthombo wesandi, kwaye injongo kukubonakalisa amandla esandi ngaphantsi.Ukugqunywa kwesandi seMaterial kujonge kubungakanani bamandla esandi sothumelo kwelinye icala lomthombo wesandi sesiganeko, kwaye kujoliswe kuko kukwenza amandla esandi sosasazo abe mancinci.Imathiriyeli yokufunxa isandi kwisehlo samandla esandi sokufunxa, ngokubanzi nje zilishumi ezimbalwa, ke ngoko, isakhono saso sokufunxa isandi oko kukuthi i-coefficient yokufunxa isandi sinokubonakaliswa kwidesimali kunye nesixhobo sokugquma isandi.
Amandla esandi adlulisiweyo anokuthi athotywe kwi-10-3 ~ 10-4 yesiganeko samandla omsindo okanye ngaphantsi.Ukuze kube lula ukubonakaliswa, umthamo wokugquma isandi umelwe yindlela yokulinganisa i-decibel.Izixhobo ezibini kumahluko wezinto ezibonakalayo zithatha izinto zesehlo isandi sokubonakaliswa kwamandla kuncinci kakhulu, okuthetha ukuba amandla esandi kulula ukungena kunye nezinto eziphathekayo: unokucinga, izinto eziphathekayo kufuneka zibe yisulfure ene-porous kwaye iphefumule, le yinto eqhelekileyo yokufunxa isandi, idla ngokuba nefayibha, itsalo okanye igwebu izinto zokwenza ubume beporous: ubume bayo bu: imathiriyeli inenani elikhulu, elidityanisiweyo, ukusuka etafileni ukuya kumngxuma, onobuchwephesha obuthile. Xa isandi sesandi singena kumphezulu wezinto ezinentunja, bangela ukuba umoya ungcangcazele, ngenxa yokukhuhlana nomoya uncangathi.
Ukuxhathisa okumileyo kunye nokuqhuba ubushushu kuguqula inxalenye enkulu yamandla esandi kumandla obushushu, ngaloo ndlela idlala ukufunxa isandi.Kwizixhobo zokugquma isandi, ukwehlisa ukuhanjiswa kwamandla omsindo, ukuvimba ukusasazeka kwesandi, akunabuqhophololo njengesixhobo sokufunxa isandi, i-porous, iphefumla, ngokuchaseneyo, izinto zayo kufuneka zibe nzima kwaye zixinene, njengeplate yensimbi, ilothe. ipleyiti, udonga lwezitena kunye nezinye izinto.Imfuno yezixhobo zokugquma isandi zixinene ngaphandle kweepores okanye izikhewu: kukho ubunzima obukhulu, kuba olu hlobo lwezixhobo zesandi luxinene, kunzima ukufunxa kunye nokudlula kumandla omsindo kwaye ubonakalise ukusuka nangona kunjalo, ngoko ukusebenza kwayo kokufunxa isandi. ayilunganga.
Kwezobunjineli, injongo kunye nogxininiso lokwenziwa kwesandi sokufunxa isandi kunye nokucutshungulwa kokufakwa kwesandi kuyahluka.Injongo yonyango lokufunxa isandi kukunciphisa ukubonakaliswa okuphindaphindiweyo kwesandi, oko kukuthi, ukunciphisa ixesha lokuxuba ingxolo, kwaye ingxolo eqhubekayo iyancipha ekunciphiseni inqanaba lengxolo yangaphakathi, ekwisakhiwo esifanayo. Isithuba somthombo wesandi kunye nezinto ezifunxa isandi.Kwaye ngenxa yesandi esiphuma kwigumbi elikufutshane, isandi sokufunxa isandi sikwadlala indima yokufunxa, elingana nokuphucula isandi sokugquma isandi sesakhiwo semvulophu.
Ixesha lokuposa: May-23-2023