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US 7,248,041 B2Granted
Device and method for measuring transient magnetic performance
AssigneeCummins Inc.
InventorsEdward B. Manring, David M. Rix, Donald J. Benson
Life of this patent
Estimating the term…
Abstract
A device for evaluating magnetic component performance and methods of evaluating transient magnetic performance of such components are disclosed. Magnetic flux capacity and/or energy loss of a magnetic component is/are measured, and the measurement data is electronically processed to evaluate the magnetic performance of the component.
Claims21
A device for measuring transient magnetic performance of a magnetic component, the device comprising
- a flux path closure device coupled to the magnetic component to define a closed flux path through the flux path closure device and the magnetic component,
- an excitation coil responsive to a transient excitation signal to generate a transient magnetic flux in the closed flux path, and
- a monitoring device configured to monitor a transient voltage across, and a transient current through, the excitation coil resulting from application of the transient excitation signal thereto, the monitoring device configured to compute an effective resistance of the excitation coil as a function of the transient voltage and the transient current, and to compute the transient magnetic flux as a function of the transient voltage, the transient current and the effective resistance.
Dependencies are inferred from the claim text.