| 摘要 |
PROBLEM TO BE SOLVED: To improve sensitivity of a capacitor microphone. SOLUTION: The capacitor microphone includes: a plate forming a stationary electrode; a diaphragm which forms a vibrating electrode with respect to the stationary electrode and of which an outer circumferential end is a free end; and a pole on which a central portion of the diaphragm and the plate are fixed so as not to rotate. COPYRIGHT: (C)2008,JPO&INPIT
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