Consideration of emf calculation method on an electromagnetic tachometer.

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  • Consideration of emf Calculation Method

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Electromagnetic tachometers are applied to many industry products. The magnetic field analysis is required for these performance evaluation. In this paper, we propose an electromotive force (emf) calculation method for an electromagnetic tachometer system which corrects vector potentials calculated from 2D finite element method in a focused area. The calculated and the measured emf are in agreement with 70%. And tendency of calculated emfs agrees with that of measured emfs. Therefore, the present method has advantages for design and evaluation of an electromagnetic tachometer systems.

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