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This paper presents an improved technique for detection of mass unbalance in rotor of an induction motor by the analysis of transient stator current during starting period using both discrete wavelet transform (DWT) and continuous wavelet transform(CWT). The unbalanced magnetic pull due to centrifugal force developed for mass unbalance in rotor produces excessive vibration in the rotor as well as...
A generalized methodology of constructing a Mexican hat wavelet family involving even order Gaussian derivatives has been devised in a Gaussian scale space only. The optimization has been carried out in Fourier domain and the kernels in Gaussian scale space domain are found to be exact replica of their derivative wavelet counterpart for low as well as high order. Wavelet properties of the lowest order...
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