Methods and system for inspecting train wheels and axles
AssigneePure Technologies Ltd.
InventorPeter O. PAULSON
Life of this patent
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Abstract
The present invention relates to a method for identifying and locating a defect in a train wheel or an axle of a train as the train moves along a rail track, the method comprising the steps of: sampling magnetic field measurements obtained from a plurality of magnetometer sensors so arranged to be in proximity to a moving wheel or an axle, the sensors arranged to span at least a length sufficient to obtain the magnetic field measurements from the entire wheel or the axle during one complete revolution of the wheel or the axle; and identifying and locating a defect in the wheel or the axle when a sampled magnetic field measurement is equal to or exceeds a threshold value.
Claims25
A method for identifying and locating a defect in a train wheel or an axle of a train as the train moves along a rail track, the method comprising the steps of:
- sampling magnetic field measurements obtained from a plurality of magnetometer sensors so arranged to be in proximity to a moving wheel or an axle, the sensors arranged to span at least a length sufficient to obtain the magnetic field measurements from the entire wheel or the axle during one complete revolution of the wheel or the axle;
- and
- identifying and locating a defect in the wheel or the axle when a sampled magnetic field measurement is equal to or exceeds a threshold value.
(canceled)
-7. (canceled)
(canceled)
An apparatus for identifying and locating defects in a train wheel or an axle of a train as the train moves along a rail track, the apparatus comprising:
- a plurality of magnetometer sensors, the sensors arranged to measure magnetic field components in a plurality of directions, the sensors arranged in an array a length sufficient to measure the magnetic field components from the entire wheel or axle during one complete revolution of the wheel or axle.
A system for identifying and locating defects in a train wheel or axle of a train as the train moves along a rail track, the system comprising:
- a plurality of magnetometer sensors, the sensors arranged to measure magnetic field components in a plurality of directions, the sensors arranged in an array having a length sufficient to measure the magnetic field components from the entire wheel or axle during one complete revolution of the wheel or axle;
- a processor;
- and
- a non-transitory computer readable media having instructions stored thereon which when executed cause the processor to:
- sample the magnetic field measurements;
- identify and locate a defect when a sampled magnetic field measurement is equal to or exceeds a threshold value.
(canceled)
A non-transitory computer readable medium having instructions stored thereon for identifying and locating defects in a train wheel or axle of a train as the train moves along a rail track, the instructions when executed cause a computer to:
- sample magnetic field measurements, the magnetic field measurements obtained from a plurality of magnetometer sensors so arranged to be in proximity to a moving wheel or axle, the sensors arranged to span at least a length sufficient to obtain the magnetic field measurements from the entire wheel or axle during one complete revolution of the wheel or axle;
- identify and locate a defect when a sampled magnetic field measurement is equal to or exceeds a threshold value.
-27. (canceled)
Dependencies are inferred from the claim text.