| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a method that can precisely analyze tennis swing using a simple apparatus. <P>SOLUTION: A swing analyzing apparatus 2 includes: (1) a three-axis acceleration sensor 28, attached to a tennis racket, for measuring accelerations in directions of three axes when a swing for hitting a tennis ball is taken with the tennis racket; (2) a three-axis gyro sensor 30, attached to the tennis racket, for measuring angular speeds about the three axes; and (3) an analyzing device 8. The analyzing device 8 has: (3-1) a receiving function to receive data regarding the accelerations and the angular speeds from the three-axis acceleration sensor 28 and the three-axis gyro sensor 30; (3-2) a coordinate axis conversion function to convert relative coordinate axes for the accelerations into absolute coordinate axes on the basis of the angular speeds; and (3-3) a calculation function to calculate an index of the swing on the basis of accelerations resulting from the coordinate axis conversion. <P>COPYRIGHT: (C)2013,JPO&INPIT |
