Device for producing a sliding or traveling magnetic field, in particular for ionic processing under magnetic field
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United States of America Patent
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Mar 29, 1988
Grant Date -
N/A
app pub date -
Dec 24, 1986
filing date -
Dec 27, 1985
priority date (Note) -
Expired
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Abstract
Device for producing a sliding or traveling magnetic field, with a substantially constant modulus in a working region (11a), using movable permanent magnets, these permanent magnets forming cylindrical bars (1) with diametrical or radial magnetization, with one or more pairs of poles, arranged side by side with their axes parallel and equidistant (E), placed in one and the same plane (A), the magnetizations (J) of the bars (1) being successively angularly offset by a constant angle, the various bars (1) being driven rotationally around their axis at the same angular velocity and in the same direction, and the distance (Y) between the said working region (11a) and the plane (A) of the axes of the bars (1) being equal to at least 0.75 times the distance (E) between the axes of two successive bars.
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