公开(公告)号：US20190187167A1

公开(公告)日：2019-06-20

申请号：US16315564

申请日：2018-04-23

Applicant: KOREA AEROSPACE RESEARCH INSTITUTE

Inventor： Byeong Hee CHANG ,  Seunghoon LEE ,  Tae Hwan CHO ,  Yang Won KIM

IPC: G01P5/06 ,  F03D3/04 ,  G01H11/06 ,  G01P5/24

CPC classification number: G01P5/06 ,  F03D3/0409 ,  F05B2270/32 ,  G01H11/06 ,  G01P5/248 ,  G06F17/10

Abstract: Provided are a three-dimensional (3D) ultrasonic anemometer, a 3D wind velocity measuring method, and a wind turbine. The 3D ultrasonic anemometer includes: an ultrasonic sensor including three pairs of ultrasonic transceivers arranged in different directions, wherein the ultrasonic sensor is installed at a rotation body rotating around a rotation axis and rotates around the rotation axis together with the rotation body; a signal processor outputting a 3D sensed wind velocity sensed by the ultrasonic sensor; and a coordinate converter converting the 3D sensed wind velocity into a 3D fixed wind velocity on a fixed coordinate system by using a rotation angle φ of the rotation body.