Method and system for detecting cavitation in a pump
First Claim
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1. A method for detecting cavitation in a pump, comprising the steps of:
- providing a signal indicative of a condition of the pump;
decomposing the signal into a Daubechies wavelet; and
analyzing the Daubechies wavelet to detect cavitation in the pump.
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Abstract
A system receives a signal from a sensor indicative of a condition of a pump, decomposes the signal into a wavelet, and analyzes the wavelet to detect a likelihood of cavitation in the pump.
194 Citations
25 Claims
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1. A method for detecting cavitation in a pump, comprising the steps of:
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providing a signal indicative of a condition of the pump;
decomposing the signal into a Daubechies wavelet; and
analyzing the Daubechies wavelet to detect cavitation in the pump. - View Dependent Claims (2, 3, 4, 5)
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6. A method for detecting cavitation in a pump, comprising the steps of:
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providing a pressure signal indicative of a condition of the pump;
decomposing the pressure signal into a wavelet; and
analyzing the wavelet to detect cavitation in the pump. - View Dependent Claims (7, 8, 9, 10, 11, 12, 13)
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14. A system for detecting cavitation in a pump having a fluid input and a fluid output, comprising:
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a pressure transducer for providing a signal indicative of a condition of the pump; and
a first computer, wherein the signal is decomposed into a wavelet, and the wavelet is analyzed to detect cavitation in the pump. - View Dependent Claims (15, 16, 17, 18, 19, 20, 21)
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22. A system for detecting cavitation in a pump comprising:
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a pump;
a boost pump for providing fluid material to the pump;
a sensor for providing a signal indicative of a condition of the pump; and
a computer;
wherein;
the signal is decomposed into a wavelet;
the wavelet is analyzed to detect cavitation in the pump; and
a speed of the boost pump is increased when cavitation is detected. - View Dependent Claims (23)
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24. A system for detecting cavitation in a pump comprising:
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a pump;
a boost pump for providing fluid material to the pump;
a pressure transducer for providing a signal indicative of a condition of the pump; and
a computer, wherein the signal is decomposed into a Daubechies wavelet, and the Daubechies wavelet is analyzed to detect cavitation in the pump.
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25. A system for detecting cavitation in a pump, comprising:
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a flowmeter for providing a signal indicative of a flowrate of the pump; and
a computer, wherein the computer calculates a volumetric efficiency of the pump in response to the flowrate and a speed of the pump, and the computer detects cavitation in the pump in response to a decrease in the volumetric efficiency.
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Specification