COLLISION POSITION DETECTION DEVICE, WIND POWER GENERATION DEVICE AND WIND POWER GENERATION SYSTEM

WIPO Patent Application WO/2013/165011

A1

The invention is a collision position detection device (50) provided with: a piezoelectric element (51) that generates a voltage by means of a collision; a signal detection means that detects a signal generated by means of the collision on the piezoelectric element (51); and a process means that identifies the collision position on the piezoelectric element from the signal detected by means of the signal detection means. The piezoelectric element (51) is a long piezoelectric element (51) comprising: a long piezoelectric body (51b); conductors (51a, 51c) layered on both sides of the piezoelectric body (51c); and a covering body (51d) covering the outer periphery of said piezoelectric body (51b) and conductors (51a, 51c). Said collision position detection device is capable of identifying the collision position by detecting both of a front end signal generated from the front end of the long piezoelectric element (51) and a rear end signal generated from the rear end of the long piezoelectric element (51). By providing said piezoelectric element (51) on a windmill blade, information about birds that have collided with the blade can be detected.

OKANO TERUO (JP)

PCT/JP2013/062689

November 07, 2013

May 01, 2013

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F T INNOVATION INC (JP)

G01B7/00; F03D1/06; F03D11/00; G01L1/16; G01L5/00

JP2007501160A	2007-01-25
JPH01201102A	1989-08-14
JP2009505063A	2009-02-05
JP2003532835A	2003-11-05
JP2010220542A	2010-10-07
JP2006098175A	2006-04-13
JP2009228554A	2009-10-08
JP2006078393A	2006-03-23
JP2000230872A	2000-08-22
US6534999B2	2003-03-18

See also references of EP 2846127A4

KIMURA MITSURU (JP)
Mitsuru Kimura (JP)

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