ʻO ka Sensitivity, ka ratio o ka volta analog a i ʻole ka waiwai puka kikohoʻe i ke kaomi hoʻokomo, he metric kī no kēlā me kēia microphone. Me ka hoʻokomo ʻana i ʻike ʻia, ʻo ka palapala ʻāina mai nā ʻāpana domain acoustic a i nā ʻāpana domain uila e hoʻoholo i ka nui o ka hōʻailona hoʻopuka microphone. E kūkākūkā kēia ʻatikala i nā ʻokoʻa o nā kikoʻī sensitivity ma waena o nā microphones analog a me nā microphones, pehea e koho ai i ka microphone maikaʻi loa no kāu noi, a no ke aha e hoʻohui ai i kahi liʻiliʻi (a ʻoi aku paha) o ka loaʻa kikohoʻe hiki ke hoʻonui i ka.microphonee hoailona.
analog a me ka kikohoʻe
Hoʻohana pinepine ʻia ka naʻau o ka microphone me kahi hawewe sine 1 kHz ma kahi pae kaomi kani (SPL) o 94 dB (a i ʻole 1 Pa (Pa) kaomi). ʻO ka nui o ka hōʻailona hoʻopuka analog a i ʻole kikohoʻe o ka microphone ma lalo o kēia hoʻoulu hoʻokomo ʻana he ana ia o ka ʻike microphone. ʻO kēia wahi kuhikuhi kahi wale nō o nā hiʻohiʻona o ka microphone a ʻaʻole hōʻike i ka holoʻokoʻa o ka hana o ka microphone.
He maʻalahi ka ʻike o kahi microphone analog a ʻaʻole paʻakikī ke hoʻomaopopo. Hōʻike ʻia kēia metric ma nā ʻāpana logarithmic dBV (decibels pili i 1 V) a hōʻike i nā volts o ka hōʻailona puka ma kahi SPL i hāʻawi ʻia. No nā microphones analog, hiki ke hōʻike logarithmically i ka sensitivity (i hōʻike ʻia ma nā ʻāpana laina mV/Pa) ma nā decibels:
Me kēia ʻike a me ka loaʻa preamp kūpono, maʻalahi ka hoʻohālikelike ʻana i ka pae hōʻailona microphone i ka pae hoʻokomo ʻia o ke kaapuni a i ʻole kekahi ʻāpana o ka ʻōnaehana. Hōʻike ka Kiʻi 1 i ke ʻano o ka hoʻonohonoho ʻana i ka puʻupuʻu kiʻekiʻe o ka microphone (VMAX) e hoʻohālikelike i ka volta hoʻokomo piha piha (VIN) o ADC me ka loaʻa ʻana o VIN/VMAX. No ka laʻana, me ka loaʻa ʻana o 4 (12 dB), hiki ke hoʻohālikelike ʻia kahi ADMP504 me ka volta puka kiʻekiʻe loa o 0.25 V me kahi ADC me kahi puʻupuʻu hoʻokomo kiʻekiʻe piha o 1.0 V.
Ka manawa hoʻouna: ʻAukake-11-2022
