Amaza omsindo: ingqiqo kunye neempawu

Ihlabathi singqongwe, sinako ngokuzithemba umnxeba ihlabathi isandi, kuba zonke ngeenxa zonke kuthi rhoqo amazwi, umculo le ntsholo yeentaka, isandi somoya. amaza omsindo ukunceda abantu ukunxibelelana, ungafumana ulwazi malunga ihlabathi elibangqongileyo. Animal umsindo zibaluleke ngokulinganayo. Ngokwembono physics, imisindo intlokoma mechanical zisanda ngendlela elastic medium: amanzi, umoya, oqinileyo njalo njalo. iindlebe babantu uve isandi, xa umsindo sele uluhlu-16 000 Hz ku-20. Oscillations ne ephakamileyo okanye ezitsho esezantsi ayikho oluvakalayo ebantwini.

umsindo Science bathethile iintlobo imiba, kuquka imiba enxulumene iimpawu kunye neempawu kwetyala. Le ndaba nasekufundweni umsindo komzimba i ngqo licandelo ukuva, isakhiwo, yaye intshukumo kwefowuni. umsindo yezakhiwo sele ukufunda ukusebenzisa indlela amaza isandi kwelo gumbi, ucinga impembelelo imilo kunye nobukhulu egumbini kwisandi, ukufunda iimpawu izinto kunye ukwanda ngoku kwezithandani izandi. umsindo zomculo sele ukufunda isixhobo somculo, ulinganisa iimeko sandi eli njengesixhobo.

esifunda Physical Acoustics ngokwabo amaza omsindo, isandi ngamaza, kutshanje kwakhona iye ibe ukuhla cover ezingaphaya izakhono kwenkqubo eziviwayo zabantu.

Iingqiqo ezisisiseko nemisindo

Ukufika of isandi yabangela azize ngomatshini kwemizimba elastic bume. Air ke ngomsindo umqhubi. Oku wazibonakalisa ngamava Roberta Boylya. Ukuba ufake nomzimba okanye phantsi inkenteza impompo umoya, ngoko ubuncinane, ukumpompa ngaphandle isandi yentsimbi umoya uya kuba buthathaka. Xa umoya phantsi ekupheleni intsimbi, isandi uza kuyeka ukuba nomsindo.

Ngexesha umzimba oscillation khosi kubangela uxinzelelo elibi emoyeni umaleko esikufuphi umphezulu wawo, ngoko Oluma lo maleko. Ngenxa yoko, ukuba andise kwamaza kwisithuba emoyeni iqala kunye oscillation lo maleko umoya kufutshane kumphezulu emzimbeni.

Kamsinya nje amaza omsindo ukusasaza esibhakabhakeni, damping isandi emsebenzini, nto leyo ehambisana kunye neenkqubo ezithile vuhlayiseki. Uluvo apha kukuba inxalenye amandla olwenziwe yi isandi ifunxwe yi medium.

Le ukufunxa ixabiso leyo ilingana umlinganiselo wamandla yesandi lilo eliphakathi ukuya amandla kukhuphiswano bume. Xa onokufunxa kunobunye lwangaphakathi iphenjelelwa okanye viscosity medium, conductivity yayo thermal kwanokuxinana medium le Velocity wave nokuba andise.

Liqhele iliza esiphakathi ngonaphakade uza nemida yayo. Emva kwale umda iqala kwamanye ulwimi ubunjwe amanye amasuntswana kwaye apho omnye Velocity yesandi. Kweli umda wenziwe reflection yesandi. Xa oku amasuntswana underpressure iba amafu, kunye ukujija - ngaphakathi cleaner.

Le isiphumo kwenzeka kuba intlokoma ukuba azitshangatshangise kuzisa ukuya kumda eliphakathi, ndatshintshelwa kwelinye amasuntswana aphakathi kwaye abe umthombo a wave entsha. wave Secondary uyakumisa nje kuphela eliphakathi yesibini, kodwa lowo Kwathi kuzo kwangaphambili. Oku kuza kuba ku vangama ka ngamaza yesandi.

Xa interface ingxelo kwenxenye olunzulu yesibini medium kunye nokufunxwa kwenxenye nesandi. Umlinganiselo wamandla kubonakala iya kuxhomekeka umlinganiselo ingxinano medium of, kwakunye nemeko esibonakalayo. Umzekelo, ukuba kubonakala isandi nasekwandiseni emoyeni, ukususela kwindawo engamanzi okanye okuqinileyo phantse ngokupheleleyo. Amaza Sound ukwandiswa kwindawo eqinileyo, phantse ngokupheleleyo kuboniswa elilujongano kunye nomoya.

On reflection phenomenon inxulumene ngqo inkangeleko i msindo. Umongo kule meko kuxhomekeke yokuba isandi sisuka kumthombo ukuya imiqobo ethile, nto leyo eya kuba imida eliphakathi, kwaye kuboniswe kulo, babuyele kwindawo ukwenzeka lwamaza.