The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 10, 2015
Filed:
Jul. 05, 2010
Yuichi Fukuchi, Wako, JP;
Takashi Yoshino, Wako, JP;
Minoru Teramura, Wako, JP;
Gensuke Hoshino, Wako, JP;
Yuichi Fukuchi, Wako, JP;
Takashi Yoshino, Wako, JP;
Minoru Teramura, Wako, JP;
Gensuke Hoshino, Wako, JP;
Honda Motor Co., Ltd., Tokyo, JP;
Abstract
A particle image velocimetry system is provided which supplies tracer particles to a flow field around an object () from tracer particle supply means, takes an image of reflected light by imaging means (A,B) 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.