METHOD AND APPARATUS TO MEASURE GOLD CLUB SPEED

摘要

A method to measure the speed of a golf club as a player swings it towards the ball. The method comprises spending two narrow parallel beams of light perpendicular to the anticipated path of the golf club head. When the club head intersects each of the two beams light is scattered from the head onto a photo­-detector. The speed of the club head is determined from the distance between the two light beams and the time between intersections of the two beams.