Stray Magnetic Field Analysis Applied to the Internal Unbalances of Low Power Single Phase Induction Motor
Résumé
The aim of this paper is to detail the diagnosis of a low power single phase induction motor with capacitor based on the measurement of the stray magnetic field, this diagnosis will be apply to an important industrial production in order to know global quality of motor in actuator. However, as the magnetic behavior of the studied machine is quite complex, many unbalances exist together and at significant levels. In order to distinguish them, an analytical study and modeling are carried out. The characterization of each unbalance is done using the traditional frequency analysis but also graphic spatial analysis based on retrieved information from several sensors. As a result, representations of the induction with and without the unbalances are illustrated in various ways.
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