Patent ID: 9032794
Filing Date: 2015-05-19
Classification: A63B,G01C,G01P

Abstract:
1. A measurement system for transmitting select kinematic variables of a thrown ball, said ball having a ball center, said measurement system comprising: an inertial measurement unit connectable with the ball, said inertial measurement unit measuring an acceleration of the thrown ball and an angular velocity of the thrown ball and outputting acceleration data and angular velocity data of the thrown ball in a first, second, and third coordinate direction; and a processing unit receiving said acceleration data and said angular velocity data for said first, second, and third coordinate directions and computing release conditions of the thrown ball at the instant the ball is released, said computed release conditions including a velocity of the ball center along said first, second, and third coordinate directions, a ball spin axis along said first, second, and third coordinate directions, and a ball spin rate.