Measuring and testing – Vibration – Resonance – frequency – or amplitude study
Patent
1993-06-07
1995-01-10
Williams, Hezron E.
Measuring and testing
Vibration
Resonance, frequency, or amplitude study
73849, 273 77A, G01H 900
Patent
active
053796411
ABSTRACT:
The invention relates to a method for measuring the deflection in a golf club shaft (3) for controlling the dynamic loft angle of a shaft. The method comprises the steps of fixedly clamping a shaft (3) at a certain distance from a club head (5), setting club head (5) in vibration, and measuring the vibration frequency while shaft (3) is clamped at the clamping distance. This is followed by releasing the shaft (3) from clamping and by repeating the above actions at varying distances from the club head (5) and by using the thus obtained measuring results for setting up a frequency profile for shaft (3).
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Paasivaara Jukka
Suominen Matti
Tiikkainen Pekka
Exel Oy
Olsen James M.
Williams Hezron E.
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