Patent ID: 6527648
Filing Date: 2003-03-04
Classification: A63B,G01N

Abstract:
A method for predicting a coefficient of restitution (COR) of a golf club, the method comprising:attaching a vibration sensor to a face of the golf club; impacting the attached vibration sensor with an excitation device to generate vibrations in the face; transmitting a force of excitation from the excitation device and the vibrations measured by the vibration sensor to an analyzer to generate frequency domain data for the golf club; transforming the frequency domain data for the golf club into a transfer function for the golf club; and inputting a golf ball model for a specific golf ball and an impact speed into the transfer function in order to generate a predicted COR for the golf club at the impact speed with the specific golf ball, the golf ball model comprising a contact duration of the specific ball, a contact force of the specific ball, and a COR of the specific ball.