NgoLwesine Dec 23 15:12:07 CST 2021
Inxalenye ephambili ye-microphone ye-condenser yintloko ye-pole, eyenziwe ngeefilimu ezimbini zetsimbi;Xa i-wave yesandi ibangela ukungcangcazela kwayo, isithuba esahlukileyo sefilimu yesinyithi ibangela isakhono esahlukileyo kwaye sivelise okwangoku.Ngenxa yokuba intloko yepali idinga amandla ombane athile ukuze i-polarization, iimakrofoni zecondenser ngokubanzi zifuna ukusebenzisa umbane we-phantom ukusebenza.Imakrofoni yeCondenser ineempawu zobuntununtunu obuphezulu kunye nokuqondisa okuphezulu.Ke ngoko, isetyenziswa ngokubanzi kumculo wobugcisa ohlukeneyo, ifilimu kunye nokurekhoda umabonakude, nto leyo ixhaphake kakhulu kwisitudiyo sokurekhoda.
Olunye uhlobo lombhobho wecondenser lubizwa ngokuba yi-electret microphone.Imakrofoni ye-Electret ineempawu zomthamo omncinci, uluhlu olubanzi lwamaza, ukuthembeka okuphezulu kunye neendleko eziphantsi.Isetyenziswe ngokubanzi kwizixhobo zonxibelelwano, izixhobo zasekhaya kunye nezinye iimveliso zombane.Xa ii-microphone ze-electret ziveliswa, i-diaphragm iphantsi konyango lwe-polarization ephezulu kwaye iya kuhlawuliswa ngokusisigxina, ngoko akukho mfuneko yokongeza i-voltage polarization.Ukuphatheka kunye nezinye iimfuno, i-electret condenser microphone ingenziwa encinci kakhulu, ngoko iya kuchaphazela umgangatho wesandi ukuya kwinqanaba elithile.Kodwa ngokwethiyori, akufuneki kubekho mahluko mkhulu kumgangatho wesandi phakathi kweemakrofoni ze-electret zobukhulu obufanayo kunye neemakrofoni ze-condenser zendabuko ezisetyenziswa ngokubanzi kwizitudiyo zokurekhoda.
Imayikrofoni yegama lesiTshayina le-condenser igama lasemzini umbhobho we-condenser i-alias condenser imakrofoni umgaqo ocekethekileyo wefilimu ecwecwe ngegolide yecapacitor eliqela ye-P farad yangaphakathi yokumelana g ohm inqanaba elinexabiso eliphantsi, umthamo omncinci kunye novakalelo oluphezulu.
ikhathalogu
1 umgaqo wokusebenza
Iimpawu ezi-2
3 isakhiwo
4 injongo
Umgaqo osebenzayo wokuhlela kunye nosasazo
Imakrofoni yeCondenser
Imakrofoni yeCondenser
Umgaqo wokuthatha isandi se-microphone ye-condenser kukusebenzisa ifilimu encinci yegolide ecwecwe njengepali enye ye-capacitor, eyahlulwe ngeshumi ezimbalwa ze-millimeter, kunye nenye i-electrode esisigxina, ukwenzela ukuba yenze i-capacitor ye-P farads ezininzi.I-electrode yefilimu itshintsha amandla e-capacitor kwaye yenza umqondiso wombane ngenxa yokunyakaza kwesandi somsindo.Ngenxa yokuba i-capacitance i-P farads ezimbalwa kuphela, ukuchasana kwayo kwangaphakathi kuphezulu kakhulu, Fikelela kwinqanaba le-G ohms.Ke ngoko, isekethe iyafuneka ukuguqula i-impedance ye-G ohm ibe sisithintelo ngokubanzi esimalunga ne-600 ohm.Le sekethe, ekwabizwa ngokuba yi "pre amplification circuit", ihlala idityaniswa ngaphakathi kwi-microphone yecondenser kwaye idinga "ubonelelo lwamandla ephantom" ukunika amandla isekethe.Ngenxa yobukho bale sekethe yokwandiswa kwangaphambili, ii-microphone zecondenser kufuneka zinikwe amandla ngumbane wephantom ukuze zisebenze ngokwesiqhelo.Iimakrofoni zeCondenser + unikezelo lwamandla ephantom ngokubanzi lunovakalelo kakhulu, olunovakalelo kakhulu kuneemakrofoni eziqhelekileyo eziguquguqukayo.Ngamanye amazwi, umbane we-phantom uyimfuneko kwii-microphone ze-condenser ukurekhoda ukuba zisetyenziswe kwiikhomputha okanye ezinye izixhobo, kwaye isandi esirekhodiweyo asiyi kuba sincinci kunee-microphone ezinamandla.[1]
Ukuhlelwa kwezinto kunye nosasazo
Olu hlobo lombhobho lolona luxhaphakileyo kuba alunamali, luncinci kwaye luyasebenza.Ngamanye amaxesha ikwabizwa ngokuba ngumbhobho.Umgaqo othile ulandelayo: kwinqanaba elikhethekileyo lezinto eziphathekayo, kukho intlawulo.Intlawulo apha akukho lula ukuyikhulula.Xa abantu bethetha, ifilimu ehlawuliswayo iyangcangcazela.Ngenxa yoko, umgama phakathi kwayo kunye nepleyiti ethile ihlala iguquka, ibangele utshintsho lwe-capacitance.Kwakhona, ekubeni intlawulo kuyo ihlala ingatshintshi, i-voltage iya kutshintsha kwakhona ngokwe-q = Cu, Ngale ndlela, isandi somsindo siguqulwa sibe ngumqondiso wombane.Lo mqondiso wombane wongezwa ngokubanzi kwi-FET ngaphakathi kwe-microphone ukukhulisa umqondiso.Xa udibanisa kwisiphaluka, qaphela uxhulumaniso lwalo oluchanekileyo.Ukongeza, ii-microphone ze-piezoelectric zikwasetyenziswa ngokuqhelekileyo kwezinye izixhobo eziphantsi.Njengoko kubonisiwe kuMfanekiso 1.
Inxalenye ephambili ye-microphone ye-condenser yintloko yesiteji, esakhiwe ngeefilimu ezimbini zetsimbi;Xa i-wave yesandi ibangela ukungcangcazela kwayo, isithuba esahlukileyo sefilimu yesinyithi ibangela isakhono esahlukileyo kwaye sivelise okwangoku.Iimakrofoni zeCondenser ngokubanzi zidinga umbane we-48V phantom, izixhobo zokukhulisa i-microphone okanye umxube ukuze usebenze.
Imakrofoni yeCondenser yenye yezona ntlobo zakudala zemakrofoni, ezinokuthi zilandelelwe emva ekuqaleni kwenkulungwane yama-20.Xa kuthelekiswa nezinye iintlobo zeemakrofoni, ukwakheka komatshini we-microphone ye-condenser yeyona ilula.Ikakhulu kukuncamathisela idiaphragm ebhityileyo eyoluliweyo kwiphepha lesinyithi elibizwa ngokuba yipleyiti yangasemva, kwaye usebenzise esi sakhiwo ukwenza i-capacitor elula.Emva koko sebenzisa umthombo wamandla ombane wangaphandle (ngokuqhelekileyo unikezelo lwamandla e-phantom, kodwa ii-microphone ezininzi ze-condenser nazo zinesixhobo sazo sombane) ukubonelela amandla kwi-capacitor.Xa uxinzelelo lwesandi lusebenza kwi-diaphragm, i-diaphragm iya kwenza ukungcangcazela okuncinci okuncinci kunye ne-waveform, kwaye oku kungcangcazela kuya kutshintsha i-voltage ephumayo ngotshintsho lwe-capacitance, eyenza umqondiso wokuphuma kwemakrofoni.Enyanisweni, i-Microphones ye-capacitance inokwahlulwa ibe ziindidi ezininzi, kodwa umgaqo wabo osisiseko wokusebenza uyafana.Okwangoku, i-microphone ye-condenser ethandwa kakhulu yi-U87 eveliswe nguNeumann.[2]
Ukuhlelwa kwesakhiwo kunye nosasazo
Umgaqo we-condenser microphone
Umgaqo we-condenser microphone
Isakhiwo esiqhelekileyo se-microphone ye-condenser siboniswe kumzobo "umgaqo we-microphone ye-condenser": iipleyiti ezimbini ze-electrode ze-capacitor zihlukaniswe zibe zimbini, ezibizwa ngokuba yi-diaphragm kunye ne-electrode yangemuva ngokulandelanayo.Imakrofoni yombhobho we-diaphragm enye intloko yepali, i-diaphragm kunye nepali yangasemva ibekwe kumacala omabini ngokulandelelanayo, intloko ye-diaphragm pole intloko, ipali yangasemva ibekwe embindini, kwaye i-diaphragm ibekwe macala omabini.
I-Directivity ye-microphone ye-condenser ifezekiswa ngoyilo ngononophelo kunye nokulungiswa kwendlela ye-acoustic kwelinye icala le-diaphragm, edlala indima enkulu kwiimeko ezahlukeneyo zokurekhoda, ngakumbi ngaxeshanye kunye nokurekhoda bukhoma.
Ngokuqhelekileyo (ngaphandle kwekhosi), ii-microphone ze-condenser ziphezulu kune-microphone eziguquguqukayo kubuntununtunu kunye nokwandiswa kwe-frequency ephezulu (ngamanye amaxesha ephantsi) impendulo.
Oku kuhambelana nomgaqo osebenzayo wokuba ii-microphone ze-condenser kufuneka ziguqule iimpawu zesandi zibe zangoku kuqala.Ngokubanzi, i-diaphragm ye-microphone ye-condenser ibhityile kakhulu, ekulula ukungcangcazela phantsi kwempembelelo yoxinzelelo lwesandi, okukhokelela kutshintsho oluhambelanayo lombane phakathi kwe-diaphragm kunye ne-backplane engasemva ye-diaphragm compartment.Olu tshintsho lwamandla ombane luya kwandiswa sisandisi-amplifier kwaye emva koko luguqulelwe kwisiphumo sophawu lwesandi.
Ngokuqinisekileyo, i-preamplifier ekhankanywe apha ibhekisela kwi-amplifier eyakhelwe kwi-microphone, kunokuba "i-preamplifier", oko kukuthi, i-preamplifier kwi-mixer okanye i-interface.Ngenxa yokuba indawo ye-diaphragm ye-microphone ye-condenser incinci kakhulu, ivakalelwa kakhulu kwi-low-frequency okanye i-high-frequency sound signals.Yinyani.Uninzi lweemakrofoni zecondenser zinokubamba ngokuchanekileyo imiqondiso yesandi abantu abaninzi abangayivayo.[2]
Injongo edit kusasazo
Imakrofoni yeCondenser yeyona mibhobho ilungileyo yokurekhoda.Ukusetyenziswa kwayo kubandakanya i-solo, i-saxophone, i-flute, ipayipi yensimbi okanye i-woodwind, i-acoustic guitar okanye i-acoustic bass.Imakrofoni yeCondenser ifanelekile kuyo nayiphi na indawo apho umgangatho wesandi esiphakamileyo kunye nesandi kufuneka.Ngenxa yobume bayo obunqabileyo kunye nokukwazi ukuphatha uxinzelelo oluphezulu lwesandi, ii-microphone ze-condenser lolona khetho lungcono lokuqiniswa kwesandi okanye ukurekhoda okuphilayo.Iyakwazi ukuthabatha igubu lonyawo, isiginci kunye ne-bass speaker.[3]
Ixesha lokuposa: Aug-28-2023