Drag force measurement: A means for determining hysteresis loss

Journal Article · Sat Apr 15 00:00:00 EDT 2006 · Journal of Applied Physics

DOI:https://doi.org/10.1063/1.2172583· OSTI ID:20788119

Garshelis, Ivan J; Tollens, Stijn P. L.; Kari, Ryan J; Vandenbossche, Lode P; Dupre, Luc R ^[1]

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1. Magnova, Inc., Pittsfield, Massachusetts 01201 and MagCanica, Inc., San Diego, California 92117 (United States)

A method for determining hysteresis losses in thin strips of soft magnetic materials is described. It is based on the measurement of a drag force which arises with the movement of the sample through the strong field existing in the space near a permanent magnet. Not associated with macro eddy currents, the force is shown to originate from the magnetic hysteresis of the material, having, in fact, an amplitude equal to the product of hysteresis loss and the area of the sample cross section. Correlation within 18% with the measurements made by conventional methods is shown for a wide range of experimental materials.

• OSTI ID: 20788119
• Journal Information: Journal of Applied Physics, Vol. 99, Issue 8; Conference: 50. annual conference on magnetism and magnetic materials, San Jose, CA (United States), 30 Oct - 3 Nov 2005; Other Information: DOI: 10.1063/1.2172583; (c) 2006 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0021-8979
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
CROSS SECTIONS
EDDY CURRENTS
HYSTERESIS
MAGNETIC MATERIALS
PERMANENT MAGNETS