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BIBTEX RIS

Uso de Transformadas de Ondaletas na Avaliação de Interrmitência em sinal Discretos

2019; UNIVERSIDADE DE BRASÍLIA; Volume: 5; Issue: 2 Linguagem: Inglês

10.26512/ripe.v5i2.29659

ISSN

2447-6102

Autores

Fernanda P. Cyrne, Alexandre Alencar de Melo, Jhon Nero Vaz Goulart,

Tópico(s)

Power Transformer Diagnostics and Insulation

Resumo

This paper aims to apply continuous wavelet transform - CWT - in the analysis of the transient signals with and without intermittency. For that evaluation, time-frequency analysis techniques were employed for two didactic signals and a experimental signal from velocity fluctuation. Thye velocity signal was acquired by a single hot wire probe. In all cases, the wavelet transform was able to identify periods with low energy levels, showing to be efficient in the identification of intermittency or anomalies in the signals.

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