
通过模态滤波实现阵列式传感器系统的故障诊断
Fault detection of sensor array using modal filtering method
By using modal filtering method, a modified sensor fault detection approach based on structural dynamic characteristics is presented. An array of accelerometers attached on the surface of the beam are taken as sensors. The differences between the reconstructed signals by modal filtering and the measurement signals are obtained, then the curvature of the errors are taken as sensitive index to detect and identify the simulated fault sensor of sensor array. The numerical simulation and experimental result show that the proposed method can detect the fault sensor efficiently. Furthermore, this method is independent of the location of the excitation and it can be used for real-time monitoring system.
模态滤波 曲率误差 阵列式传感器 故障诊断 {{custom_keyword}} /
modal filtering / error of curvature / sensor array / fault detection {{custom_keyword}} /
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