The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 04, 2012
Filed:
Mar. 31, 2008
Thomas Bosselmann, Marloffstein, DE;
Thomas Bosselmann, Marloffstein, DE;
Siemens Aktiengesellschaft, Munich, DE;
Abstract
A rotor blade of a wind energy installation has a wall forming an outer shell, and at least one pressure measurement device arranged inside the rotor blade. The pressure measurement device includes a hollow body that is closed in a gastight fashion and has at least one pressure-dependent deformable diaphragm. At least one optical strain sensor is non-positively connected to each diaphragm. In a method using the pressure measurement device, the wind force is determined at wind energy installations by an evaluation unit which determines a comparison value indicating the difference between the pressure at the side of the outer shell facing the wind and the pressure at the side of the outer shell averted from the wind. A measured value for the wind force acting on the rotor blade is determined from the comparison value. The method can be used for optimized operation and/or protection of wind energy installations.