Sgnaolin, Valerio (2019) Measurement and analysis of harmonic emissions of digital inverter refrigerators. [Magistrali biennali]
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Starting from the Fourier’s transform, an alternative is found in the Wavelet Transform. Exploiting the Multi-Resolution in time and frequency a view of the spectrum along time is achieved. An energy map is then created and used as a set of features to be recognized by an algorithm of classification. A proper experimental setup is build in order to create an automatic fault recognition firmware on the MCU of the motherboards of inverter refrigerators.
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