自动化与信息工程2023，Vol.44Issue(6)：39-45,7.DOI:10.3969/j.issn.1674-2605.2023.06.007
基于梅尔频谱的电磁继电器内部异响特征提取
Extraction of Internal Abnormal Noise Features of Electromagnetic Relay Based on Mel Spectrum
摘要
Abstract
By conducting time-frequency analysis on the abnormal sound signal of electromagnetic relay and studying the method of extracting abnormal sound features,Mel spectrum is selected to extract abnormal sound features.Firstly,preprocess the abnormal sound signal;Then,the frequency spectrum of the abnormal sound signal is obtained through short-term FFT transformation;Next,obtain the Mel spectrum through the Mel filter bank;Finally,through experimental verification,the Mel spectrum can better express the abnormal noise features of electromagnetic relay,has strong anti noise interference ability,and the data size is moderate,which can provide effective information for subsequent fault diagnosis.关键词
电磁继电器/内部异响/梅尔频谱/特征提取/时频分析Key words
electromagnetic relay/internal abnormal noise/Mel spectrum/feature extraction/time-frequency analysis分类
信息技术与安全科学引用本文复制引用
卢绮雯,林声宇,邓昌,刘夏丽,黄志海..基于梅尔频谱的电磁继电器内部异响特征提取[J].自动化与信息工程,2023,44(6):39-45,7.基金项目
国家自然科学基金(52175457) （52175457）
广东省基础与应用研究基金(2022B1515120053). （2022B1515120053）
