Vibration Data Acquisition and Fault Diagnosis System of Hydro Turbine Based on CompactRIO

This paper uses NI CompactRIO hardware platform, the CRIO has a small, convenient and suitable for harsh environments. Based on Labview software platform, developed vibration condition monitor data acquisition and processing system, using the FPGA module and real-time processing module, realized high accuracy real-time and high sampling rate, and through wavelet analysis, processing the collected the signal. Due to the time-frequency characteristics of the wavelet analysis, the analysis of singularity of the fault signal has more advantages than the traditional spectrum analysis. Through the wavelet analysis, vibration CompactRIO system can accurate extraction of fault feature of vibration unit.