| 摘要 |
<p>An electret condenser microphone is provided that can reduce parasitic capacitance and realize enhanced sensitivity. The electret condenser microphone comprises a capacitor section 3 including a fixed electrode 2 having an electret member 11 and a diaphragm electrode 1, a casing section 7 housing the capacitor section 3, a circuit board 5 including a converter circuit 4 for converting variations of capacitance of the capacitor section 3 caused by vibrations of the diaphragm electrode 1 to electric signals for output, and conducting elements 6 for making the capacitor 3 conductive with the circuit board 5, in which the casing section 7 has a shape as viewed from top different from a shape of the capacitor 3 as viewed from top to provide different distances between outer sides of the capacitor section 3 and the casing section 7 circumferentially of the capacitor section 3 as viewed from top.</p> |
