Lub ntsiab lus tseem ceeb ntawm lub microphone (microphone) suav nrog qhov siab tshaj plaws suab siab (AOP), rhiab heev, zaus teb, directivity, impedance, tag nrho harmonic distortion (THD) thiab teeb liab-rau-noise ratio (S/N).
Qib Siab Siab Siab Tshaj Plaws (AOP): Qhov no yog qib suab siab uas lub microphone tso tawm {{0}}% tag nrho kev sib haum xeeb ntawm KHz. Cov kev ntsuas qhov sib txawv ntawm 0 dB SPL txog 35 dB SPL.
rhiab heev: Qhia tau hais tias lub microphone ua tau zoo npaum li cas los hloov lub suab mus rau hauv lub teeb liab hluav taws xob, feem ntau qhia hauv decibels (dB). Qhov siab dua qhov siab, qhov zoo dua lub microphone tuaj yeem ntes lub suab.
Cov lus teb zaus: yog hais txog qhov kev hloov pauv ntawm qhov rhiab heev ntawm lub microphone nyob rau hauv thaj tsam ntawm {{{0}}Hz txog 0kHz, uas yog qhia raws li cov lus teb zaus nkhaus.
Directivity: Piav qhia txog lub peev xwm ntawm lub microphone los ntes cov suab hauv cov lus qhia sib txawv, thiab kev coj ncaj ncees muaj xws li cardioid, omnidirectional, thiab lwm yam.
Impedance: Qhia qhov kev tawm tsam ntawm lub tswv yim ntawm lub microphone, feem ntau hauv ob peb puas ohms.
Tag Nrho Harmonic Distortion (THD): Ib qho kev ntsuas ntawm qhov cuam tshuam ntawm lub teeb liab ntawm lub suab, nrog cov nqi me me uas qhia tias muaj kev cuam tshuam tsawg dua.
Teeb liab-rau-lub suab nrov piv (S / N): Qhia qhov piv ntawm cov teeb liab rau lub suab nrov tom qab, qhov siab dua qhov teeb liab-rau-nrov piv, qhov me dua lub suab nrov tom qab.
Tsis tas li ntawd, kev faib tawm thiab kev ua haujlwm tsis zoo ntawm lub microphone kuj tseem ceeb ntawm kev nkag siab txog kev siv tshuab microphone. Raws li acousto-electrical conversion mechanism, microphones yuav muab faib ua dynamic microphones, condenser microphones, thiab piezoelectric microphones. Lub dynamic microphone generates voltage hloov los ntawm lub zog ntawm lub suab cuam tshuam lub khob hliav qab nyob rau hauv lub magnetic teb, uas yog haum rau miniaturization thiab durability; Lub condenser microphone hloov lub teeb liab los ntawm kev hloov qhov kev ncua deb ntawm lub capacitor los ntawm lub suab, thiab muaj rhiab heev thiab zoo zaus teb yam ntxwv; Piezoelectric microphones hloov suab rau hauv hluav taws xob teeb liab los ntawm cov nyhuv piezoelectric.
