| 摘要 |
PROBLEM TO BE SOLVED: To calibrate a scale factor of a vibration velocity sensor by generating vibration motion having large amplitude and using the vibration motion. SOLUTION: The vibration velocity sensor S to be calibrated is placed on a rotary table 14 coupled to a rotary drive source built in a rotary unit 12 so that an input shaft of the vibration velocity sensor S matches with the rotation direction of the rotary table 14. The rotary table 14 is rotated and vibrated at a certain rotation frequency so that the vibrating vibration velocity is input to the vibration velocity sensor S. The output signal from the vibration velocity sensor S is obtained, and the scale factor of the vibration velocity sensor S is calculated from the obtained output signal. COPYRIGHT: (C)2010,JPO&INPIT
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