| 摘要 |
A multi-functional golf club is provided to trace the track of swing and to measure the correctness of the swing by comparing the track of swing with an optimal swing track to correct user's posture. A multi-functional golf club includes a position acceleration sensor(120), a signal amplifying portion(140), a display portion(150), a control portion(170) and a power portion(180). The position acceleration sensor outputs signals for the values of x, y and z axis(vector). The signal amplifying portion amplifies and outputs the signal transmitted from the position acceleration sensor. The display portion includes LEDs that output the number of turned on lamps differently according to the degree of separation of the swing track from the normal swing track by receiving the signal from the signal amplifying portion.
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