G - Physics – 01 – L
Patent
G - Physics
01
L
G01L 7/08 (2006.01) F03D 1/00 (2006.01) F03D 11/00 (2006.01) G01K 11/32 (2006.01) G01L 1/24 (2006.01)
Patent
CA 2627829
Pressure measurement device and method for determining the wind force at wind energy installations, and use of the pressure measurement device and of the method The pressure measurement device (5) for a rotor blade (32) of a wind energy installation (10) comprises a hollow body that is closed in a gastight fashion and has at least one pressure- dependent deformable diaphragm (54). In this case, at least one optical strain sensor is non-positively connected to the at least one diaphragm. Also specified are a rotor blade (32) of a wind energy installation (10), comprising a wall (36) forming an outer shell, and at least one pressure measurement device (5) arranged inside the rotor blade (32), as well as a wind energy installation (10) having at least one such rotor blade (32). In the method for determining the wind force at wind energy installations (10), with the aid of an evaluation unit the pressure at the side of the outer shell (36) facing the wind is compared with the pressure at the side of the outer shell (36) averted from the wind, a comparison value is determined, and a measured value for the wind force acting on the rotor blade (32) is determined from the comparison value. The use of the method serves the purpose in this case of optimized operation and/or protection of the wind energy installation (10).
Aktiengesellschaft Siemens
Smart & Biggar
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