Imbobo yomsindo ephansi ye-ADI imakrofoni ye-MEMS ingadayiswa ngokuqondile ku-PCB ngokuphinda kufakwe i-solder. Imbobo idinga ukwenziwa ku-PCB ukuze kudluliswe umsindo kuphakheji yemakrofoni. Ngaphezu kwalokho, izindlu ezihlala i-PCB nemakrofoni zinendawo yokuvumela imakrofoni ukuthi ixhumane nemvelo yangaphandle
Ngendlela efanayo, imakrofoni ivezwa endaweni yangaphandle. Ezimweni zangaphandle ezinokhahlo, amanzi noma olunye uketshezi lungangena endaweni yemakrofoni futhi kuthinte ukusebenza kwemakrofoni nekhwalithi yomsindo. Ukungena koketshezi kungalimaza unomphela imakrofoni. Leli nothi lohlelo lokusebenza lichaza indlela yokuvimbela imakrofoni ukuthi ingalinyazwa yilokhu, iyenze ifanelekele ukusetshenziswa ezindaweni ezimanzi nezinothuli, okuhlanganisa nokucwiliswa ngokuphelele.
incazelo yokuklama
Ukunikeza isivikelo kulula, vele ubeke ucezu lwerabha ethambile noma into efana ne-seal phambi kwemakrofoni. Uma kuqhathaniswa ne-acoustic impedance yembobo yemakrofoni, lolu phawu edizayini kunciphisa kakhulu ukuvinjelwa kwe-acoustic. Uma iklanywe kahle, uphawu aluthinti ukuzwela kwemakrofoni, luthinta kuphela impendulo yemvamisa, lukhawulelwe ebangeni le-treble. I-microphone yembobo engezansi ihlezi ifakwe ku-PCB. Kulo mklamo, uhlangothi olungaphandle lwe-PCB lumbozwe ungqimba lwezinto ezingangeni manzi eziguquguqukayo njengerabha ye-silicone. Lolu ungqimba lwezinto eziguquguqukayo lungasetshenziswa njengengxenye yekhibhodi noma ikhiphedi yezinombolo, noma lungahlanganiswa nemiklamo yezimboni. Njengoba kuboniswe kuMfanekiso 1, lolu ungqimba lwento kufanele ludale imbobo ngaphambi kwembobo yomsindo ku-PCB, kuthuthukiswe ukuhambisana nokuvumelana kwefilimu. Ifilimu eguquguqukayo yenza ukuvikela imakrofoni futhi kufanele ibe mncane ngangokunokwenzeka.
Ukuqina kwefilimu kukhula ngokuqina kwekhyubhu, ngakho ukukhetha okubalulekile okungaba khona kohlelo lokusebenza kunciphisa umthelela wempendulo yemvamisa. Imbobo enkulu (ehlobene nembobo yemakrofoni kanye nembobo ku-PCB) kanye nefilimu encane eguquguqukayo ihlangene yakha iluphu ye-acoustic ye-impedance ephansi. Le impedance ephansi (ehlobene ne-impedance yokufaka imakrofoni) inciphisa ukulahleka kwesignali. Ububanzi bomgodi kufanele bube cishe u-2× kuya ku-4× wembobo yomsindo, futhi ukuphakama kwesikhala kufanele kube phakathi kuka-0.5 mm no-1.0 mm.
Isikhathi sokuthumela: Sep-07-2022
