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基于小波分析的MSMA振动传感号处理与故障检测

, PP. 354-360

Keywords: MSMA,振动传感器,感应电压,小波分析,故障检测

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Abstract:

基于磁控形状记忆合金(MSMA)逆特性制作的振动传感器,其输出的感应电压存在较大的干扰,需要对感应信号进行数字滤波以提取有效数据。本文在小波分析滤波原理基础上,采用db5小波数字滤波算法,将不同频段的感应电压信号进行软阈值滤波,并通过小波分解MSMA振动传感器的感应信号进行故障检测。由信号处理结果可以看出小波分析具有理想的滤波效果,可用于MSMA振动传感器的信号处理与故障检测。

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