MAGNETIC FLUX DENSITY DISTRIBUTION MEASUREMENTS AND COMPUTATIONS IN WATSON CIRCUIT

Aleš Hála

   This paper shortly shows some characteristics of used magnetically hard and soft materials and deals with magnetic flux density distribution computation in the centre of Watson circuit in longitudinal direction. The problem has been solved by programme FEMM (2D) based on Finite Element Method. The computation results are compared with results of measurements. Finally, there are shown results of magnetic flux density measurements transversely in air gap of the uncompensated, overcompensated and compensated Watson circuits.

Keywords: permanent magnets, magnetic flux density distribution, magnetic measurements, Watson circuit, homogeneous magnetic field

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