Sensitivity, chiyero cheanalog inobuda voltage kana kukosha kwedhijitari kune kudzvanywa kwekuisa, ndiyo kiyi metric kune chero maikorofoni. Nekupinza kunozivikanwa, mepu kubva kuacoustic domain units kuenda kune yemagetsi domain unit inosarudza ukuru hweiyo maikorofoni inobuda chiratidzo. Ichi chinyorwa chichakurukura mutsauko wekunzwa kutsanangurwa pakati peanalog nedigital maikorofoni, maitiro ekusarudza maikorofoni yakanakisa yekushandisa kwako, uye nei kuwedzera zvishoma (kana kupfuura) yekuwana dhijitari kunogona kuwedzeramaikorofonie chiratidzo.
analog uye digital
Maikorofoni senitivity inowanzoyerwa ne1 kHz sine wave padanho rekumanikidza (SPL) ye94 dB (kana 1 Pa (Pa) kudzvanywa). Hukuru hweanalogi kana yedhijitari inobuda chiratidzo chemaikorofoni pasi peiyi yekukurudzira yekupinza chiyero chekunzwa kwemakrofoni. Iyi poindi yereferensi ingori imwe yehunhu hwemaikorofoni uye haimiriri kuita kwemaikorofoni yese.
Kunzwa kweanalog maikorofoni kuri nyore uye hakuna kuoma kunzwisisa. Iyi metric inowanzo ratidzwa mu logarithmic units dBV (decibels inoenderana ne1 V) uye inomiririra mavolts echiratidzo chekubuda pane yakapihwa SPL. Kune maikorofoni eanalog, kunzwisiswa (kunoratidzirwa mumutsara mayunitsi mV/Pa) kunogona kuratidzwa logarithmically mumadecibel:
Neruzivo urwu uye neiyo chaiyo preamp kuwana, zviri nyore kuenzanisa maikorofoni chiratidzo chenhanho kune yakanangwa yekupinza nhanho yedunhu kana chimwe chikamu cheiyo system. Mufananidzo 1 unoratidza maitiro ekuseta maikorofoni peak kubuda voltage (VMAX) kuti ienderane neiyo ADC's yakazara-scale yekupinza voltage (VIN) nekuwana yeVIN/VMAX. Semuenzaniso, nekuwana 4 (12 dB), ADMP504 ine yakanyanya kubuda voltage ye0.25 V inogona kufananidzwa neADC ine yakazara-chiyero peak yekupinza voltage ye1.0 V.
Nguva yekutumira: Aug-11-2022
