| 摘要 |
A system for determining the performance of a first piece of sport equipment mounts the first piece of sports equipment such as a bat, golf club, tennis racket, or hockey stick having known characteristics of a Moment of Inertia, a weight, and a location of a Center of Mass for impact by a second piece of sports equipment which has a known Coefficient of Restitution in a mounting device. The mounting device is arranged to freely move the first piece of sports equipment from a predetermined starting position when the first piece of sports equipment is impacted substantially at a center of a predetermined impact area thereof by the second piece of sports equipment moving at a velocity "v". A measuring device measures (a) the velocity "v" of the second piece of sports equipment propelled at the center of a predetermined impact area, and (b) the rebound velocity "V" of the first piece of sports equipment as the first piece of sports equipment moves after it has been impacted by the second piece of sports equipment. The known characteristics of the first and second pieces of sports equipment and the rebound velocity of the first piece of sports equipment and the velocity of the second piece of sports equipment are used to determine a Coefficient of Restitution (COR) between the first and second pieces of sports equipment, and a performance factor for the first piece of sports equipment.
|
