| 摘要 |
A variable capacitance type capacitor includes an inside member and an outside member including a space for housing the inside member. The inside member has a columnar shape, and a first conductor pattern is formed on a circumferential surface thereof. The outside member has a predetermined dielectric constant, and a second conductor pattern is formed on an outer circumferential surface thereof so as to oppose the first conductor pattern formed on the inside member. The inside member housed in the space of the outside member is displaced relative to the outside member in a direction of a central axis of the inside member in response to an externally applied force, and an opposed area between the first conductor pattern and the second conductor pattern changes to thereby form a capacitance corresponding to the externally applied force between the first electrode and the second electrode. |
