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US 11,579,197 B2Granted
System and method for induction motor rotor bar surface magnetic field analysis
AssigneeBrandon & Clark, Inc.
InventorScott W. Clark
Life of this patent
Estimating the term…
Abstract
A system for magnetic field testing comprising a magnetic field generation device configured to generate a magnetic field in a rotor, a plurality of magnetic field measurement devices configured to measure a magnetic field at a predetermined position on the rotor, a drive mechanism configured to rotate the rotor and a test system configured to record the plurality of magnetic field measurements as a function of an angular position of the rotor.
Claims22
A system for magnetic field testing comprising:
- a magnetic field generation device configured to generate a magnetic field in a rotor having a plurality of rotor bars, each embedded in the rotor;
- an array of magnetic field measurement devices, each configured to measure a magnetic field at a predetermined position on the rotor;
- a drive mechanism configured to rotate the rotor about a rotational axis;
- a test system configured to record the magnetic field measured by each of the magnetic field measurement devices as a function of an angular position of the rotor about the axis and to determine whether damage is present in association with one or more of the rotor bars;
- and
- wherein the magnetic field generation device is disposed at an angular position about the axis different from an angular position of the array of magnetic field measurement devices about the axis for any rotational position of the rotor about the axis.
3 more elements
Dependencies are inferred from the claim text.