| 摘要 |
PROBLEM TO BE SOLVED: To provide a floating body where the offset component and an offset drift component can be canceled by using only an angular velocity sensor, and to provide an apparatus and a method for detecting orientation revolution of the floating body. SOLUTION: The orientation revolution detecting device comprises: an angular velocity sensor 18 for detecting the angular velocity of the floating body 1; an ADC 101; a first offset canceling means for averaging the output signals of the ADC 101 and reducing it from the output signal of the ADC 101; and an angular velocity conversion means for converting the output signal of the first offset canceling means to the angular velocity data. The orientation revolution detecting device may include a second offset canceling means which comprises: an integrator 102 which integrates the angular velocity data of the floating body 1; a differentiator 208 which differentiates the integrated angular data and outputs fine angular velocity data; and a storage means 209 for storing this fine angular velocity data, and which subtracts the fine angular velocity data from the angular velocity data of the output of the angular velocity conversion means. COPYRIGHT: (C)2004,JPO&NCIPI
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