Method for inspecting at least one rotor blade of a wind turbine and inspection system for at least one rotor blade of a wind turbine
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United States of America Patent
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Nov 27, 2012
Grant Date -
Jan 21, 2010
app pub date -
Sep 29, 2009
filing date -
Mar 29, 2007
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A method for inspecting at least one rotor blade of a wind turbine for damage, such as subsurface blade cracks, includes the steps of: attaching at least one acoustic emission sensor to a surface of a rotor blade to be inspected, exciting oscillations in the rotor blade for a time period, measuring activity signals of the oscillations in the rotor blade with the at least one acoustic emission sensor, and detaching the at least one acoustic emission sensor from the surface of the rotor blade after the inspection. An inspection system for a rotor blade of a wind turbine is also contemplated.
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