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Analysis of Abnormal Sound from Motor of a Range Hood and Its Diagnosis
Author(s): 
Pages: 85-87
Year: Issue:  3
Journal: MEASUREMENT & CONTROL TECHNOLOGY

Keyword:  油烟机异音故障诊断线谱特征;
Abstract: 对油烟机辐射噪声进行了测量,频谱分析表明200 Hz附近能量集中,该线谱来源于电机以及整机装配不良.听觉试验证明该线谱是"嗡嗡声"的主要根源,可以作为油烟机故障的判别特征之一.用生产线实际测量数据进行故障诊断,结果与听音员判断结果一致性在95%以上.
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