Patent ID: 9010177
Filing Date: 2015-04-21
Classification: A63B

Abstract:
1. A method for evaluating a golf ball, the method comprising the steps of: providing a golf ball, the golf ball having a surface with numerous dimples; calculating a first data constellation regarding a parameter dependent on a surface shape of the golf ball having numerous dimples on its surface, on the basis of a surface shape appearing at a predetermined point moment by moment during rotation of the golf ball about a first axis; calculating a second data constellation regarding a parameter dependent on the surface shape of the golf ball, on the basis of a surface shape appearing at a predetermined point moment by moment during rotation of the golf ball about a second axis; performing Fourier transformation on the first data constellation to obtain a first transformed data constellation; performing Fourier transformation on the second data constellation to obtain a second transformed data constellation; determining an aerodynamic characteristic of the golf ball on the basis of comparison of the first transformed data constellation and the second transformed data constellation; and altering the surface of the golf ball based on the determined aerodynamic characteristic.