Sound mafunde mfundo ndi mbali

Tikukhala m'dziko limene ife, tingakhulupirire kuyitana dziko la phokoso, chifukwa onse otizungulira zonse mawu, nyimbo, ndi akulira wa mbalame, phokoso la mphepo. Sound mafunde kuthandiza anthu kulankhula, kudziwa za dziko owazungulira. phokoso nyama lofunika mofanana. Kuyambira sayansi pamaso, phokoso ndi makina Phokoso pochulukitsa mu sing'anga zotanuka: madzi, mpweya, olimba ndi zina zotero. m'makutu a anthu akhoza kumva phokoso, pamene mafurikwense phokoso ali mu osiyanasiyana kuchokera 16 mpaka 20,000 Hz. Oscillations ndi apamwamba kapena mafurikwense m'munsi si lomveka kwa anthu.

Science zowulutsira wadzitcha zosiyanasiyana za nkhani zosiyanasiyana monga zokhudza makhalidwe ndi katundu kumvetsera. Phunziro la kuphunzira zowulutsira thupi ndi mwachindunji limba kumva, matabwa ake, ndi kanthu chipangizo. Kamangidwe zowulutsira wakhala kuphunzira mmene mungagwiritsire ntchito mafunde phokoso mu chipinda, kuganizira zochita za mawonekedwe ndi kukula kwa chipinda kwa mawu, kuphunzira katundu zipangizo ndi kuchuluka panopa ndi yimitsira mawu. Nyimbo zowulutsira amachita ndi phunziro zoimbira, ikufotokoza za chikhalidwe cha phokoso bwino chipangizo makamaka.

Thupi zowulutsira amafufuza okha mphepo youlutsa mawu, phokoso mafunde, posachedwapa zambiri lilinso kusinthasintha chivundikiro kuti ali kutsidya lina la mphamvu ya dongosolo anthu Makutu.

Malingaliro yaikulu ya zowulutsira

Kubwera kwa phokoso chifukwa cha Phokoso makina a matupi ndi mapangidwe zotanuka. Air ndi phokoso kondakitala. Izi chimaoneka ndi zinachitikira Roberta Boylya. Ngati inu mutenga ndi matupi abwino kapena pansi belu pampu, ndiye osachepera ikukoka kuchokera mpweya belu phokoso adzakhala ofooka. Pamene mpweya pansi mapeto belu phokoso adzaleka palimodzi.

Pa oscillation thupi alternately amalenga makhalidwe oipa mu mlengalenga wosanjikiza pafupi pamwamba pake, compresses wosanjikiza izi. Chifukwa, Wofalitsa mafunde mu malo mpweya akuyamba ndi oscillation a wosanjikiza mpweya pafupi pamwamba thupi.

Mwamsanga pamene mafunde phokoso kufalitsa kudutsa mlengalenga, damping phokoso zimawonedwa, amene amagwirizana ndi njira zina sizingasinthe. lingaliro ndi gawo la mphamvu adatengedwa ndi funde zogwira chosakanikirana ndi sing'anga.

Mayamwidwe koyefishienti ndi mtengo umene uli wofanana ndi chiŵerengero cha mphamvu phokoso chosakanikirana ndi sing'anga kuti mphamvu kuti adalowa chilengedwe. Pa mayamwidwe koyefishienti amakhudza mikangano kapena kukhuthala sing'anga, madutsidwe ake matenthedwe ndi osalimba sing'anga yoweyula kafalitsidwe liwiro.

Kufalitsa mu yoweyula sing'anga afika konse ndi malire ake. Pambuyo malire limayamba kwa sing'anga wina amene wapangidwa ndi particles ena ndi zimene ena phokoso mathamangidwe. M'malire izi zopangidwa chinyezimiro phokoso. Pamene particles underpressure kwasanduka condensation, ndi condensation - mu kuyamwa.

Kwenikweni izi zimachitika chifukwa chakuti kunjenjemerako kuti ndizikagwedezeka akubweretsa kwa malire a sing'anga, anasamukira ku particles wina sing'anga ndi kukhala gwero la yoweyula latsopano. yoweyula Secondary zidzakhala zofalikira osati sing'anga chachiwiri, komanso mmodzi wa ku umene anachokera. Ichi chidzakhala chinyezimiro cha mafunde phokoso.

Pa mawonekedwe ndime tsankho la phokoso mu sing'anga chachiwiri ndi tsankho mayamwidwe phokoso. Chiwerengero cha mphamvu anasonyeza kudzadalira chiŵerengero cha kachulukidwe sing'anga, komanso chikhalidwe cha mawonekedwe. Mwachitsanzo, potengera phokoso mafunde pochulukitsa mu mlengalenga, kuchokera pamwamba madzi kapena olimba ndi pafupifupi kwathunthu. Sound mafunde kufalitsa mu olimba, pafupifupi mwathunthu zimaonekera pa mawonekedwe ndi mpweya.

Pa kusinkhasinkha chodabwitsa mwachindunji ndi pakutchulidwa wa sakusiyana. Akamanena za zodabwitsazi kwagona kuti phokoso amachokera gwero ndi zopinga zina, limene lidzakhala malire a sing'anga, ndipo anasonyeza kwa izo, kubwerera ku malo zosayembekezereka ya mafunde.