| 摘要 |
PROBLEM TO BE SOLVED: To provide a vibration detector capable of discriminating what action has caused an external force when the external force is applied. SOLUTION: The vibration detector 1 includes: a detection section 20 for converting a change in pressure applied to an object to a voltage for an output; and a measurement section 30 for measuring the voltage outputted from the detection section 20. The measurement section 30 has a filtering means 34, such as two kinds of digital bandpass filters for individually passing voltages of a plurality of frequency bands, and outputs voltages of the plurality of frequency bands passing through the filtering means 34 as individual signals. The detection section 20 and the measurement section 30 are packaged on the same circuit board 14. COPYRIGHT: (C)2010,JPO&INPIT
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