Title:
BLADE CRACK DETECTOR IN A WIND TURBINE
Document Type and Number:
WIPO Patent Application WO/2010/092426
Kind Code:
A3
Abstract:
An apparatus and method of detecting cracks in wind turbine rotor blades. Conductive paste is used as a conductive strip (20) covering the surface of the blades at locations where it seems most susceptible or inclined to damage. The conductive paste (20) forms a circuit (34) with a battery and a current limiting resistor, which energizes an opto- isolator (37). When the circuit is broken due to a crack, the opto- isolator (37) turns off and sets or transmits an alarm (36) indicating the blade and the location of the crack on that blade.
Inventors:
MAKAREMI SHAW S (US)
Application Number:
PCT/IB2009/006575
Publication Date:
October 07, 2010
Filing Date:
August 18, 2009
Export Citation:
Assignee:
CLIPPER WINDPOWER INC (US)
MAKAREMI SHAW S (US)
MAKAREMI SHAW S (US)
International Classes:
F03D11/00; F03D3/06; G01M5/00
Domestic Patent References:
| WO2008086551A2 | 2008-07-24 |
Foreign References:
| EP1857672A2 | 2007-11-21 | |||
| US20050284232A1 | 2005-12-29 | |||
| US4106332A | 1978-08-15 | |||
| EP1959127A2 | 2008-08-20 |
Attorney, Agent or Firm:
LAMB, Owen (Rüttenscheider Str. 2, Essen, DE)
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