| 摘要 |
<p>A capacitive sensor exhibiting good operability in which wrong operation is suppressed. Switches (SW1-SW4) are formed between a displacement electrode (40), and switch electrodes (E11-E14) held at a predetermined potential and earthed switch electrodes (E15-E18). Electrodes (E1-E5) for constituting capacitive elements between the electrodes (E1-E5) and the displacement electrode (40) are connected with switches (SW11-SW15), respectively. A judging circuit judges the states of the switches (SW1-SW4). When at least one of the switches (SW1-SW4) is turned off, a period signal is inputted only to the electrodes (E1-E4) for capacitive elements corresponding to the X-axis direction and Y-axis direction and when all the switches (SW1-SW4) are turned on, the period signal is inputted only to the electrode (E5) for capacitive element corresponding to the Z-axis direction.</p> |
