Cavitation detection device and method

Details Cavitation detection device and method Cavitation detection device and method

2005-07-25

2009-12-29

Rogers, David A. (Department: 2856)

Pumps

Condition responsive control of pump drive motor

By control of electric or magnetic drive motor

C417S044110, C318S438000, C318S729000, C702S064000, C702S182000

Reexamination Certificate

active

07637723

ABSTRACT:
Cavitation detection systems and methods include generating a signal representing the power factor of a motor driving a pump, analyzing the power factor signal and determining the presence of cavitation based on the analysis of the power factor signal. The power factor may be estimated using various estimation schemes. Analyzing the signal includes filtering the power factor signal.

REFERENCES:
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patent: 6828751 (2004-12-01), Sadasivam et al.
patent: 6859740 (2005-02-01), Stephenson et al.
patent: 2003/0060094 (2003-03-01), Motsenbocker
“Protect Sealed and Sealless Pumps with Power Monitoring”, Flowserve Corporation, May 2002, pp. 1-4.

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