发明授权
- 专利标题： Particle image velocimetry method, particle image velocimetry method for 3-dimensional space, particle image velocimetry system, and tracer particle generating device in particle image velocimetry system
- 专利标题（中）： 粒子图像测速方法，粒子图像测速系统中的三维空间粒子图像测速法，粒子图像测速系统和示踪粒子发生装置
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申请号： US13381244申请日： 2010-07-05
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公开(公告)号： US08953035B2公开(公告)日： 2015-02-10
- 发明人: Yuichi Fukuchi , Takashi Yoshino , Minoru Teramura , Gensuke Hoshino
- 申请人： Yuichi Fukuchi , Takashi Yoshino , Minoru Teramura , Gensuke Hoshino
- 申请人地址： JP Tokyo
- 专利权人： Honda Motor Co., Ltd.
- 当前专利权人： Honda Motor Co., Ltd.
- 当前专利权人地址： JP Tokyo
- 代理机构： Rankin, Hill & Clark LLP
- 优先权： JP2009-162114 20090708; JP2009-162115 20090708; JP2009-162116 20090708; JP2009-162117 20090708
- 国际申请： PCT/JP2010/061374 WO 20100705
- 国际公布： WO2011/004783 WO 20110113
- 主分类号： G01P5/22
- IPC分类号： G01P5/22 ; G01P5/26 ; G01M9/06 ; G01P5/00 ; G01S17/58
摘要：
A particle image velocimetry system is provided which supplies tracer particles to a flow field around an object (12) from tracer particle supply means, takes an image of reflected light by imaging means (32A, 32B) by irradiating the tracer particles twice with laser light at different times, and determines a velocity vector of the flow field based on the two images obtained of the tracer particles. The two images are each divided into a plurality of test regions, and when first peak value (fp)/second peak value (sp)≧1.2 is satisfied by comparison between a first peak value fp and a second peak value sp of a cross-correlation value of a luminance pattern of tracer particles in each test region of the two images, it is determined that the reliability of the velocity vector is high. Thus, it is possible to enhance the precision of measurement of the state of flow by reliably determining erroneous vectors.
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