发明名称 Capacitive transducer
摘要 A capacitive transducer, in particular a condenser microphone, with a ring-shaped member and a diaphragm secured to the ring-shaped member. A disc-shaped member is secured in the opening of the ring-shaped member and in parallel relationship to the diaphragm. The disc-shaped member has an electrically conductive portion spaced from the ring-shaped member and facing the diaphragm in a predetermined distance therefrom, whereby the diaphragm and the electrically conductive portion on the disc-shaped member form an electrical capacitor. The second side of the disc-shaped member and the contact member are directly accessible. Also, the ring-shaped member has, outside the outer periphery of the diaphragm, a free surface extending transversally to the axis of the ring-shaped member for mounting in a microphone housing with the diaphragm flush with the front end of the microphone or slightly recessed relative to the front end.
申请公布号 US6944308(B2) 申请公布日期 2005.09.13
申请号 US20030398229 申请日期 2003.05.12
申请人 BRUEL & KJAER SOUND & VIBRATION MEASUREMENT A/S 发明人 GULLOV JENS OLE;EIRBY NIELS
分类号 H04R19/00;(IPC1-7):H04R9/00 主分类号 H04R19/00
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