Electronic measurement of the motion of a moving body of sports equipment
DCFirst Claim
1. An apparatus for analyzing movement of an elongate body of sporting equipment comprising:
- an electronic circuit to be associated with the elongate body of sporting equipment and operable to measure six rigid body degrees of freedom corresponding to motion of the body, the electronic circuit including a plurality of angular rate gyros and a plurality of accelerometers.
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Accused Products
Abstract
An application of rate gyros and accelerometers allows electronic measurement of the motion of a rigid or semi-rigid body, such as a body associated with sporting equipment including a fly rod during casting, a baseball bat, a tennis racquet or a golf club during swinging. For instance, data can be collected by one gyro according to the present invention is extremely useful in analyzing the motion of a fly rod during fly casting instruction, and can also be used during the research, development and design phases of fly casting equipment including fly rods and fly lines. Similarly, data collected by three gyros and three accelerometers is extremely useful in analyzing the three dimensional motion of other sporting equipment such as baseball bats, tennis racquets and golf clubs. This data can be used to support instruction as well as design of the sporting equipment.
182 Citations
20 Claims
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1. An apparatus for analyzing movement of an elongate body of sporting equipment comprising:
an electronic circuit to be associated with the elongate body of sporting equipment and operable to measure six rigid body degrees of freedom corresponding to motion of the body, the electronic circuit including a plurality of angular rate gyros and a plurality of accelerometers. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A method for analyzing movement of an elongate body of sporting equipment comprising:
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providing an electronic circuit to be associated with the elongate body of sporting equipment, the electronic circuit including a plurality of angular rate gyros and a plurality of accelerometers; and measuring six rigid body degrees of freedom corresponding to motion of the elongate body with the electronic circuit. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16)
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17. An apparatus for analyzing movement of an elongate body of sporting equipment comprising:
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an electronic circuit to be associated with the elongate body of sporting equipment and operable to measure six rigid body degrees of freedom corresponding to motion of the body, the electronic circuit including three single-axis angular rate gyros and three accelerometers, each angular rate gyro positioned with a sensing axis perpendicular with respect to sensing axes of the other angular rate gyros, and each accelerometer positioned with a sensing axis perpendicular to sensing axes of the other accelerometers; and an analyzer for comparing at least one signal from the three angular rate gyros and the three accelerometers corresponding to movement of the body over time to at least one predetermined signal. - View Dependent Claims (18, 19, 20)
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Specification