WIND TURBINE BLADES WITH AIR PRESSURE SENSORS

WIPO Patent Application WO/2012/122669

A8

A wind turbine blade has a suction side shell member and a pressure side shell member. The shell members are joined along a leading and trailing edge from a root to a tip of the blade and defining an internal cavity of the blade. A pressure sensor is configured on at least one of the suction or pressure side shell members. The pressure sensor further includes a body mounted to an inner surface of the respective shell member within the internal cavity. A sensing element has a first side exposed to external air pressure through a passage in the respective shell member, and an opposite second side exposed to a reference pressure. Control circuitry within the body generates a variable output signal as a function of a pressure differential between the external air pressure and reference pressure experienced by the sensing element.

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XIONG WEI (CN)
ZHENG DANIAN (US)
HUANG XIONGZHE (CN)
WANG JING (US)
XIA JINGYUN (CN)

PCT/CN2011/000395

August 22, 2013

March 14, 2011

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GEN ELECTRIC (US)
XIONG WEI (CN)
ZHENG DANIAN (US)
HUANG XIONGZHE (CN)
WANG JING (US)
XIA JINGYUN (CN)

F03D11/00; F03D7/00; G01L13/00; G01M9/06

CHINA PATENT AGENT (H. K.) LTD. (Great Eagle Centre23 Harbour Road, Wanchai, Hong Kong, CN)

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