Time-Frequency Characterization of Rotating Instabilities in  a Centrifugal Pump with a Vaned Diffuser

<table>Power spectrum of
the pressure measured at the pump inlet and outlet at 500 rpm.</table>

International Journal of Rotating Machinery

Figure 3: Time-Frequency Characterization of Rotating Instabilities in  a Centrifugal Pump with a Vaned Diffuser 