A method for balancing the flux density of a permanent magnet includes sensing flux density in a permanent magnet and if unbalanced relative to a physical center, adjusting the cross-sectional area and shape of the magnet by removing magnetic material from the magnetic pole with the stronger magnetic flux density. This method is repeated until the magnetic flux density is balanced between the opposite poles of the permanent magnet relative to the physical center.

 
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> Valve arrangement in a hydraulic circuit, use of the same and arrangement for controlling a hydraulic vehicle drive

> Hydraulic spool valve for use in a hydraulic vehicle drive
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