| 摘要 |
PROBLEM TO BE SOLVED: To provide an operation detection device which can reduce the number of places for measuring a voltage.SOLUTION: An operation detection device 1 includes a first sensor 2, a second sensor 3 and an operation part 4. The operation part 4 is stretched across the first sensor 2 and the second sensor 3, has an operation surface 41 and transmits a force applied to the operation surface 41 to the first sensor 2 and the second sensor 3. The first sensor 2 is constituted so as to change the capacitance of a capacitor composed of a movable electrode and a fixed electrode, according to the size of the force applied to the operation surface 41. The first sensor 2 is constituted in such a manner that it is charged, it moves a part of electric charges accumulated by charging to the second sensor 3, and a voltage between the fixed electrode and the movable electrode after movement can be taken out.SELECTED DRAWING: Figure 1 |
