| 摘要 |
A condenser-type sounding body unit is provided with a casing; a plate electrode comprising a conductor; a diaphragm disposed in opposition to the plate electrode; a spacer for insulating the plate electrode and the diaphragm, the spacer being disposed between the plate electrode and the diaphragm; a pair of signal input terminals electrically connected to the plate electrode and the diaphragm respectively; and a sandwiching section. The sandwiching section has a first sandwiching section comprising an insulating material and a second sandwiching section comprising a conductive material. The sandwiching section sandwiches the plate electrode and the diaphragm from both sides in the direction of opposition thereof. The diaphragm, in a state of being affixed to the second sandwiching section, is housed within the casing. A sound hole is formed in the casing, in a position in opposition to the diaphragm. |
