Taw qhia ntawm Condenser Microphone rau Suab Qib MeterDifferences hauv hmo ntuj pom kev tsom iav tau piav qhia
Condenser microphones yog cov microphones zoo tshaj plaws rau kev kaw suab, thiab lawv cov kev siv suav nrog solo vocals, saxophone, flute, yeeb nkab lossis woodwind instruments, acoustic guitar, lossis acoustic bass. Condenser microphones yog tsim rau txhua lub sijhawm uas yuav tsum muaj suab zoo thiab lub suab meej. Vim lawv txoj kev tsim kho rugged thiab muaj peev xwm tswj tau lub suab siab, condenser microphones yog qhov kev xaiv zoo tshaj plaws rau kev siv lub suab los yog cov ntaub ntawv nyob.
Lwm qhov siv condenser microphone yog hu ua electret microphone. Lub electret microphone muaj cov yam ntxwv ntawm qhov me me, qhov ntau zaus, siab ncaj ncees thiab tus nqi qis. Nws tau siv dav hauv cov khoom siv hluav taws xob xws li cov khoom siv sib txuas lus thiab cov khoom siv hauv tsev. Lub diaphragm ntawm lub electret microphone tau raug rau high-voltage polarization kev kho mob thaum lub sij hawm tsim khoom, thiab yuav nqa tau ib yam nqi mus tas li, yog li tsis muaj ntxiv polarization voltage yuav tsum tau. Rau kev txav mus los thiab lwm yam yuav tsum tau ua, lub electret condenser microphone tuaj yeem ua me me, yog li nws yuav cuam tshuam rau lub suab zoo rau qee yam.
Lub hauv paus ntsiab lus ntawm condenser microphone
Lub hauv paus ntsiab lus khaws lub suab ntawm lub condenser microphone yog siv cov yeeb yaj kiab uas tsis tshua muaj kub-plated ua ib tus ncej ntawm lub capacitor, thiab muaj lwm qhov ruaj khov electrode cais los ntawm nws ob peb feem kaum ntawm ib millimeter, yog li tsim lub capacitor ntawm ob peb P Farads. . Cov yeeb yaj kiab electrode ua raws li kev vibration ntawm lub suab nthwv dej. Lub peev xwm ntawm lub capacitor hloov mus ua ib qho hluav taws xob teeb liab. Txij li thaum lub capacitor no tsuas yog ob peb P farads (1 farad=1000000000P farad), nws cov kev tiv thaiv sab hauv yog siab heev, mus txog qib G ohms (1G ohm=1000000000} ohm), yog li xav tau ib lub voj voog. los hloov qhov gigaohm impedance no txhais mus rau ib qho impedance ntawm ib ncig ntawm 600 ohms. Qhov Circuit Court no, tseem hu ua pre-amplification circuit, feem ntau yog ua ke hauv condenser microphone thiab yuav tsum muaj lub zog hluav taws xob rau lub zog hluav taws xob. Peb feem ntau xa mus rau cov khoom siv hluav taws xob uas xav tau los ntawm condenser microphones li phantom fais fab mov. Feem ntau, muaj 12V, 36V, 48V, thiab lwm yam, nyob ntawm qhov xwm txheej ntawm lub microphone. Vim tias muaj cov khoom siv hluav taws xob ua ntej no, condenser microphones yuav tsum tau siv los ntawm lub zog phantom kom ua haujlwm ib txwm. Condenser microphones ntxiv rau lub zog phantom yog feem ntau rhiab heev, rhiab ntau dua li siv cov dynamic microphones. Hauv lwm lo lus, tsis hais seb lub condenser microphone siv rau kev kaw hauv computer lossis lwm yam khoom siv, lub zog phantom yog qhov tsim nyog, thiab lub suab kaw yuav tsis me dua li ntawm lub microphone dynamic.
