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A new approach to determination of similarity of sound of dc machine is presented. This approach is based on FFT and Jacquard distance. Investigations of the sound recognition were carried out for faultless dc machine and dc machine with shorted rotor coils. Results of sound recognition are included in this paper.
This document provides the concept of investigations of acoustic signals of imminent failure conditions of synchronous motor. Measurements were made by recorder OLYMPUS WS-200S. Sound recognition software has been implemented. Algorithms of signal processing and analysis have been used. The system is based on the LPCC algorithm and fuzzy classifier with triangular membership function. Results confirm...
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