Figure 2From: An Intelligent Harmonic Synthesis Technique for Air-Gap Eccentricity Fault Diagnosis in Induction MotorsThe frequency bands: (a) the magenta-arrowed harmonic series; (b) the green-arrowed harmonic series; (c) the yellow-arrowed harmonic series; (d) the synthesized spectrum of the frequency bands in (a), (b), and (c)Back to article page