Noise Meter Condenser Microphone, Sensor
Classification ntawm microphones
Raws li lub hauv paus ntsiab lus ntawm lub suab-hluav taws xob hloov dua siab tshiab, nws tau muab faib ua: hom hluav taws xob (tsav coil hom, aluminium siv hom), capacitive type (DC polarization type), piezoelectric type (crystal type, ceramic type), thiab electromagnetic type, carbon. particle hom, semiconductor hom tos.
Muaj ob hom condenser microphones, ib qho yog hom microphone, xws li lub microphone hauv KTV. Hom condenser microphone no siv lub roj teeb uas siv lub tshuab hluav taws xob condenser microphone, feem ntau yog AA roj teeb; Lwm hom condenser microphone yog lub kaw lus microphone, xws li lub kaw lus microphone hauv xov tooj cua studio thiab lub studio kaw. Lub condenser microphone no xav tau 48 volts ntawm phantom zog rau lub hwj chim mov.
Piv nrog rau lwm cov microphones, cov yam ntxwv ntawm condenser microphones yog:
1. Zoo suab clarity
2. Nws muaj ultra-siab rhiab heev. Qhov laj thawj yog vim tias tsis muaj lub suab coil thauj khoom ntawm lub vibrating daim nyias nyias, nws tuaj yeem txais qhov tsim qauv nyias nyias thiab lub teeb, yog li tsis tsuas yog cov lus teb zaus yog qhov zoo tshaj plaws, tab sis kuj muaj qhov zoo heev rhiab heev, uas tuaj yeem hnov cov suab tsis muaj zog heev. thiab tso tawm qhov clearest, feem ntau ilv thiab meej thawj lub suab!
3. Cov zis suab zoo yog tag nrho thiab tuab tab sis tsis av nkos.
4. Ceev ceev cov yam ntxwv teb. Lub peev xwm los teb sai thiab maj mam rau lub suab tsis yog teb ntau dua li lwm cov microphones.
5. Nws muaj cov yam ntxwv ntawm ultra-tsawg kov suab nrov. Yog vim li cas yog lub diaphragm ntawm lub condenser microphone yog lub teeb, uas inherently muaj cov yam ntxwv zoo ntawm "ultra-tsawg kov suab".
6. Nws muaj cov yam ntxwv ntawm kev poob tsis kam thiab cuam tshuam tsis kam. Condenser microphones yog qhov me me thiab lub teeb hauv qhov hnyav vim yog ultra-thin diaphragm.
Condenser microphone qauv
1. PCB thiab FET Cheebtsam: FETs, capacitors, resistors thiab lwm yam khoom siv yog ntsia rau saum npoo ntawm PCB. Kev ua haujlwm ntawm FET feem ntau yog kev hloov pauv ntawm impedance txuam. Qhov kev tiv thaiv thiab kev muaj peev xwm muab qhov tsim nyog DC bias, AC teeb liab tso zis, thiab lim los tiv thaiv kev cuam tshuam tiv thaiv Nws kuj ua lub luag haujlwm ntawm kev kho thiab tiv thaiv cov khoom txawv teb chaws.
2.2. Daim phiaj hluav taws xob hluav taws xob: txuas lub phaj hluav taws xob thiab lub rooj vag (G ncej) ntawm FET, thiab xa cov hluav taws xob tsis muaj zog hluav taws xob hloov pauv los ntawm kev vibration me me pom los ntawm diaphragm mus rau G ncej, thiab ua lub luag haujlwm ntawm kev txhawb nqa tshuab.
3. Daim phiaj hluav taws xob rwb thaiv tsev: txhim kho lub phaj hluav taws xob thiab daim phiaj hluav taws xob hluav taws xob, txhawm rau tiv thaiv lub phaj hluav taws xob thiab cov kab hluav taws xob hluav taws xob los ntawm lub plhaub luv luv ntawm lub plhaub (lub hauv paus ntawm FET yog thauj mus rau G ncej, thiab plays a lub luag haujlwm ntawm kev txhawb nqa tshuab.
4. Electret phaj: Ib txheej ntawm Teflon yas zaj duab xis yog txuas rau saum npoo. Cov yeeb yaj kiab tau ntim nrog cov nqi hluav taws xob zoo li qub thiab ua rau lwm qhov electrode ntawm lub capacitor rov qab rau lub diaphragm. Qhov uas tsis yog zaj duab xis yog txuas nrog G ncej ntawm FET los ntawm daim phiaj hluav taws xob. superior.
5. Cov ntawv rwb thaiv tsev: Txhawb qhov kev ncua deb ntawm ob daim phiaj hluav taws xob ntawm lub capacitor, tawm hauv qhov sib txawv los muab qhov chaw rau lub diaphragm kom vibrate, yog li hloov lub capacitance.
6. Diaphragm: Nws yog ib qho nruj PET / PPS yas zaj duab xis nplaum rau lub nplhaib hlau. Qhov saum npoo ntawm zaj duab xis nyob rau hauv kev sib cuag nrog lub nplhaib hlau yog coated nrog ib tug nyias nyias txheej, thiab cov muaj pes tsawg leeg ntawm cov electret phaj yog sib txawv. Capacitor - lub phaj hluav taws xob, thiab nws yog lub phaj hluav taws xob uas tuaj yeem co.
7. Cov xwm txheej sab nraud: qhov kev txhawb nqa ntawm tag nrho lub microphone, nws sab nrauv yog ntim rau hauv lub plhaub, uas yog lub hauv paus ntsiab lus ntawm lub microphone, thiab plays lub luag hauj lwm ntawm electromagnetic thiab optical shielding, dustproof thiab txawv teb chaws teeb meem.
