A method of matching a golf club of a preferred frequency to a golfer's golf swing

摘要

A method of matching a golf club of a preferred frequency to a golfer's golf swing, the method comprising:

(a) said golfer swinging a golf club;

(b) measuring acceleration of the golf club at multiple times during swinging until at least ball impact;

(c) selecting an acceleration datum candidate from an acceleration data set;

(d) determining a difference, for each acceleration datum between the acceleration datum candidate and a ball impact datum, between each acceleration datum and y s , where y s = (sin r ) (y c ), y c is the acceleration datum candidate and r increases from 90{ to 180{ in substantially as many steps as there are acceleration data from the acceleration datum candidate to ball impact;

(e) selecting the acceleration datum candidate as the release point when the sum of the differences between the acceleration datum and y s is positive for all acceleration datum between the acceleration datum candidate and ball impact;

(f) determining a swing time between said release point and ball impact; and

(g) determining swing frequency according to the equation.

frequency = 15,000 : (swing time).