Condenser vs Dynamic Microphone
Condenser microphone thiab dynamic microphone yog ob hom microphones, uas feem ntau siv. Dynamic microphones yog tsim los ntawm electromagnetic induction whereas condenser microphones yog raws li kev ua haujlwm ntawm lub capacitor (condenser). Ob leeg ntawm cov cuab yeej no tseem ceeb heev hauv kev lag luam xws li audio engineering, acoustics, cov ntaub ntawv tau txais, kev sib txuas lus thev naus laus zis, kev lag luam suab paj nruag thiab ntau yam haujlwm. Hauv tsab xov xwm no, peb yuav tham txog dab tsi condenser microphone thiab dynamic microphone yog, lawv cov haujlwm thiab cov qauv kev ua haujlwm tom qab cov khoom siv no, thiab thaum kawg qhov txawv ntawm condenser microphone thiab dynamic microphone.
Condenser Microphone
Ib lub condenser microphone muaj lub capacitor nrog lub peev xwm sib txawv. Lub sij hawm "condenser" yog vim kev siv keeb kwm ntawm lub sij hawm condenser los txheeb xyuas cov cuab yeej hu ua capacitor. Lub capacitor yog ib qho cuab yeej ua los ntawm ob daim hlau uas khaws cia sib nrug los ntawm qhov nruab nrab dielectric xws li huab cua, ntawv lossis graphite. Lub capacitance ntawm lub capacitor nyob ntawm thaj tsam ntawm cov phiaj hlau, qhov kev ncua deb ntawm cov hlau phaj thiab dielectric nruab nrab ntawm cov phaj. Nyob rau hauv ib lub condenser microphone, lub capacitor yog muab tso rau kom thaum lub suab hits ib tug ntawm cov capacitor daim hlau, qhov deb ntawm daim hlau yuav me me, yog li ua rau lub capacitance ntawm lub capacitor. Lub capacitor yog pib biased nrog tus nqi tas (hais Q). Qhov kev hloov pauv ntawm lub capacitance hloov qhov voltage ntawm ob lub nodes ntawm lub capacitor raws li qhov sib npaug Q=C V qhov twg Q yog tus nqi hauv lub capacitor, C yog lub capacitance ntawm lub capacitor thiab V yog qhov voltage hla lub capacitor nodes.
Dynamic Microphone
A dynamic microphone yog ib yam khoom siv raws li electromagnetic induction. Thaum lub voj kaw kaw tau muab tso rau hauv qhov chaw sib nqus, qhov hloov pauv ntawm cov hlau nplaum sib nqus los ntawm lub voj ua rau lub zog electromotive. Qhov no electromotive quab yuam ua ib tug tam sim no uas nyob rau hauv lem yuav tsim ib tug magnetic teb tawm tsam thawj qhov kev hloov ntawm magnetic teb. Lub diaphragm ntawm lub dynamic microphone txuas nrog xws li lub kauj. Qhov no yuav ua rau muaj qhov hloov pauv tam sim no raws li qhov oscillation ntawm lub diaphragm. Lub oscillation ntawm lub diaphragm yog yam ntxwv rau lub suab nthwv dej tshwm sim ntawm nws. Qhov no yog qhov ua haujlwm ntawm tus hais lus sib nqus.
Qhov txawv ntawm Condenser Microphone thiab Dynamic Microphone yog dab tsi?
• Lub condenser microphone yog raws li txoj kev xav ntawm capacitance ntawm cov hlau sib txuas thaum lub microphone dynamic yog raws li kev xav ntawm electromagnetic induction.
• Lub condenser microphone yuav tsum muaj lub roj teeb sab nraud kom muaj kev sib tw ntawm lub capacitor, tab sis lub microphone dynamic tsis xav tau lub zog zoo li no.
• Qhov nce ntawm cov microphones dynamic yog siab dua qhov nce ntawm condenser microphones.
• Condenser microphones ua haujlwm ntawm lub teeb liab voltage whereas dynamic microphones khiav ntawm lub teeb liab tam sim no.
