Swing Performance Analysis Device
First Claim
1. A swing performance analysis device comprising a sole single axis accelerometer securable on a shaft of a golf club substantially adjacent to the golf club'"'"'s head to measure centripetal acceleration, the accelerometer being arranged to communicate with a processor, wherein the processor is arranged to accept one or more parameters on the swing to be analysed and measurement data on the swing from the accelerometer, the processor being operative to determine the radius of curvature of the swing calculate in dependence on the one or more parameters and to determine one or more attributes on the swing in dependence on the radius and measurement data, the one or more attributes including a slowing distance (d):
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d=((vpk+vi)*(ti−
tpk))/2Where;
vp=peak tangential velocity=√
{square root over ((apk*r))}vi=tangential velocity at impact=ai=centripetal acceleration at time of impactapk=peak centripetal accelerationr=distance to centre of rotation.
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Abstract
A swing performance analysis device (10) is described. The device (10) includes a sole single axis accelerometer securable to an entity (60, 70) to be swung to measure centripetal acceleration. The accelerometer is arranged to communicate with a processor (30). The processor (30) is arranged to accept one or more parameters on the swing to be analysed and measurement data on the swing from the accelerometer, the processor being operative to determine the radius of curvature of the swing calculate in dependence on the one or more parameters and to determine one or more attributes on the swing in dependence on the radius and measurement data.
115 Citations
11 Claims
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1. A swing performance analysis device comprising a sole single axis accelerometer securable on a shaft of a golf club substantially adjacent to the golf club'"'"'s head to measure centripetal acceleration, the accelerometer being arranged to communicate with a processor, wherein the processor is arranged to accept one or more parameters on the swing to be analysed and measurement data on the swing from the accelerometer, the processor being operative to determine the radius of curvature of the swing calculate in dependence on the one or more parameters and to determine one or more attributes on the swing in dependence on the radius and measurement data, the one or more attributes including a slowing distance (d):
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d=((vpk+vi)*(ti−
tpk))/2Where; vp=peak tangential velocity=√
{square root over ((apk*r))}vi=tangential velocity at impact= ai=centripetal acceleration at time of impact apk=peak centripetal acceleration r=distance to centre of rotation. - View Dependent Claims (3, 4, 5, 6, 7, 8, 9, 10, 11)
where ai=measurement data from the accelerometer immediately preceding the point of impact r=distance to centre of rotation calculated in dependence on the one or more parameters.
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9. A swing performance analysis device according to claim 1, wherein the processor is arranged to determine a peak speed of the swing, the peak speed comprising measurement data received from the accelerometer having a smaller magnitude than its predecessor.
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10. A swing performance analysis device according to claim 1, wherein the processor is remote from the accelerometer.
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11. A swing performance analysis device according to claim 10, wherein the processor and accelerometer communicate wirelessly.
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2. (canceled)
Specification