A METHOD OF ACCURATELY DETERMINING THE PITCH ANGLE OF AT LEAST ONE ROTOR BLADE OF A WIND POWER INSTALLATION

摘要

The present invention relates to a method of accurately determining the pitch angle of at least one rotor blade of a wind power installation, the method comprising the steps of: a) along at least a portion of the surface of the rotor blade, measuring the spacing between the rotor blade and a pylon of then wind power installation with a spacing measuring device mounted at the pylon, thereby producing measured data, b) processing the measured data in a computer, thereby producing process data; and c) from the processed data determining the pitch angle between the rotor blade and the pylon.