%0 Journal Article %T Detection and analysis of rotor faults in induction motors by the measurement of the stray magnetic flux %A Rigoni %A M. %A Sadowski %A N. %A Batistela %A N. J. %A Bastos %A J.P. A. %A Nau %A S. L. %A Kost %A A. %J Journal of Microwaves, Optoelectronics and Electromagnetic Applications %D 2012 %I Brazilian Microwave and Optoelectronics Society and Brazilian Society of Electromagnetism %R 10.1590/S2179-10742012000100006 %X this paper presents measured data and electromagnetic fem field calculations as techniques for detecting and analyzing eccentricity in three-phase induction motors. also it presents experimental results for detecting broken bars in induction motor rotors. a search-coil is used as magnetic field sensor to measure the stray magnetic flux outside the motor. it is a totally non-invasive method. %K induction motor %K eccentricity %K finite element method %K broken bars %K magnetic field sensor. %U http://www.scielo.br/scielo.php?script=sci_abstract&pid=S2179-10742012000100006&lng=en&nrm=iso&tlng=en