Method for installation of sensors in rotor blades and installation apparatus

Patent metadata

Field	Value
Publication number	US-9284950-B2
Application number	US-201314405682-A
Country	US
Kind code	B2
Filing date	Jun 4, 2013
Priority date	Jun 5, 2012
Publication date	Mar 15, 2016
Grant date	Mar 15, 2016

Abstract

The present invention provides a method for installing at least one sensor device within a rotor blade of a wind turbine. A first substantially planar light beam is emitted in the interior of the rotor blade. Finally, at least one second substantially planar light beam is emitted in the interior of the rotor blade, wherein the plane of the first planar light beam is oriented at a predetermined angle to the plane of the second planar light beam. Further, the planes of the first and second planar light beams are aligned on the blade flange of the rotor blade. At least one sensor device is subsequently aligned in reference to the planar light beams.

First claim

The invention claimed is:

1. A method for the installation of at least one sensor device within a rotor blade of a wind turbine, comprising:
emission of a first substantially planar light beam in the interior of the rotor blade;
emission of at least a second substantially planar light beam in the interior of the rotor blade;
wherein the plane of the first planar light beam is oriented at a predetermined angle to the plane of the second planar light beam, and wherein the planes of the first and second planar light beams are aligned on a blade flange of the rotor blade; and alignment of the at least one sensor device in reference to the planar light beams.

2. The method according to claim 1 , wherein the at least one planar light beam is emitted from a holding device attached substantially centrally to the blade flange.

3. The method according to claim 2 , wherein the holding device is adjustable in length.

4. The method according to claim 3 , wherein the holding device has a length in a range from about 1.8 m to about 4 m.

5. The method according to claim 2 , wherein the holding device is aligned to an angular coordinate on the blade flange.

6. The method according to claim 2 , wherein the holding device is aligned to an angular coordinate of approximately 0° by a point laser or adjustment rod.

7. The method according to claim 1 , wherein the holding device is clamped in the blade flange.

8. The method according to claim 1 , wherein the at least one sensor device is aligned in reference to a longitudinal direction of the rotor blade along at least one light line produced by a planar light beam at a predetermined distance from the blade bulkhead of the rotor blade.

9. The method according to claim 1 , wherein a beam angle of at least one planar light beam is variably adjusted, or wherein the beam angle is at least 100°.

10. The method according to claim 9 , wherein the beam angle is in a range from 120°to 140°.

11. The method according to claim 1 , wherein a beam angle of at least one planar light beam is variably adjusted, and wherein the beam angle is at least 100°.

12. The method according to claim 11 , wherein the beam angle is in a range from 120°to 140°.

13. An installation apparatus for installation or at least one sensor device within a rotor blade of a wind turbine, comprising:
a holding device, which is adapted for attachment to a blade flange of a rotor blade;
a first laser line emission device attached to the holding device, which is adapted for emitting a first substantially planar light beam in the interior of the rotor blade;
a second laser line emission device attached to the holding device, which is adapted for emitting a second substantially planar light beam in the interior of the rotor blade; and
an alignment device for aligning the holding device to an angular coordinate of the blade flange.

14. The installation apparatus according to claim 13 , wherein the holding device has a variable length in a range from 1.8 m to 4 m.

15. The installation apparatus according to claim 13 , wherein the first and/or second laser line emission device are arranged substantially centrally.

16. The installation apparatus according to claim 13 , wherein the planar light beam of the first and/or second laser line emission device has a beam angle of at least 100°.

17. The installation apparatus according to claim 16 , wherein the beam angle is in a range from 120°140°.

Assignees

• Univ Muenchen Tech

Inventors

• Buck Thorbjörn
• Hoffmann Lars
• Müller Mathias
• Wojtech Rolf

Classifications

• Y02E10/72

  Wind turbines with rotation axis in wind direction · CPC title

• F05B2270/804

  Optical devices · CPC title

• F05B2270/802

  Calibration thereof · CPC title

• Y02E10/721

  Cross-Sectional Technologies · mapped topic

• Y02P70/523

  Cross-Sectional Technologies · mapped topic