Fluid reaction surfaces (i.e. – impellers) – With measuring – testing – signalling or inspection means
Reexamination Certificate
2005-11-22
2005-11-22
Look, Edward K. (Department: 3745)
Fluid reaction surfaces (i.e., impellers)
With measuring, testing, signalling or inspection means
C416S043000, C415S118000, C415S026000
Reexamination Certificate
active
06966754
ABSTRACT:
In one aspect, the present invention relates to a system for monitoring wind turbines, wherein image and acoustic monitoring, in particular, is performed. In order to further improve, for example, the maintenance, safety and efficiency of a wind turbine, it is desirable to monitor additional parameters of the wind turbine. A wind turbine is provided, wherein acoustic and optical sensors are employed to monitor the operation of the wind turbine. In one embodiment, the optical sensor images a particular location in the nacelle housing when the acoustic sensor detects a sound emanating from that location in the nacelle housing. A method for monitoring a wind turbine is described wherein when a deviation between the operating acoustic spectrum and the reference acoustic spectrum exceeds the threshold, the component that generated the operating acoustic spectrum is imaged.
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Kershteyn Igor
Look Edward K.
Steinberg Neil A.
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