公开(公告)号：US20120105628A1

公开(公告)日：2012-05-03

申请号：US13381244

申请日：2010-07-05

申请人： Yuichi Fukuchi ,  Takashi Yoshino ,  Minoru Teramura ,  Gensuke Hoshino

发明人： Yuichi Fukuchi ,  Takashi Yoshino ,  Minoru Teramura ,  Gensuke Hoshino

IPC分类号： H04N7/18

CPC分类号： G01M9/067 ,  G01P5/001 ,  G01P5/22 ,  G01P5/26 ,  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.

摘要翻译： 提供一种粒子图像测速系统，其向示踪剂颗粒供应装置的物体（12）周围的流场提供示踪剂颗粒，通过用激光照射示踪剂颗粒两次，通过成像装置（32A，32B）拍摄反射光的图像 并根据获得的示踪粒子的两个图像确定流场的速度矢量。 两个图像分别被分成多个测试区域，并且当通过第一峰值值fp和第二峰值值sp之间的比较来满足第一峰值（fp）/第二峰值（sp）≥1.2）时， 在两个图像的每个测试区域中的示踪剂颗粒的亮度图案的相关值，确定速度矢量的可靠性高。 因此，可以通过可靠地确定错误矢量来提高流量状态的测量精度。

公开(公告)号：US08953035B2

公开(公告)日：2015-02-10

申请号：US13381244

申请日：2010-07-05

申请人： Yuichi Fukuchi ,  Takashi Yoshino ,  Minoru Teramura ,  Gensuke Hoshino

发明人： Yuichi Fukuchi ,  Takashi Yoshino ,  Minoru Teramura ,  Gensuke Hoshino

IPC分类号： G01P5/22 ,  G01P5/26 ,  G01M9/06 ,  G01P5/00 ,  G01S17/58

CPC分类号： G01M9/067 ,  G01P5/001 ,  G01P5/22 ,  G01P5/26 ,  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.

摘要翻译： 提供一种粒子图像测速系统，其向示踪剂颗粒供应装置的物体（12）周围的流场提供示踪剂颗粒，通过用激光照射示踪剂颗粒两次，通过成像装置（32A，32B）拍摄反射光的图像 并根据获得的示踪粒子的两个图像确定流场的速度矢量。 两个图像分别被分成多个测试区域，并且当通过第一峰值值fp和第二峰值值sp之间的比较来满足第一峰值（fp）/第二峰值（sp）≥1.2）时， 在两个图像的每个测试区域中的示踪剂颗粒的亮度图案的相关值，确定速度矢量的可靠性高。 因此，可以通过可靠地确定错误矢量来提高流量状态的测量精度。

公开(公告)号：US08950262B2

公开(公告)日：2015-02-10

申请号：US13505869

申请日：2010-11-01

申请人： Minoru Teramura ,  Yuichi Fukuchi

发明人： Minoru Teramura ,  Yuichi Fukuchi

IPC分类号： G01M9/06 ,  G01H9/00 ,  G01M17/007 ,  G01P3/80

CPC分类号： G01M9/067 ,  G01H9/002 ,  G01M17/007 ,  G01P3/806

摘要： A device for measuring a sound source distribution in three-dimensional space is provided in which tracer particles included around an object are irradiated with a two-dimensional laser sheet within an x-y plane at two times separated by a short time interval, images of the irradiated tracer particles are taken, and two in-plane velocity components of the tracer particles in the laser sheet and one out-of-plane velocity component perpendicular to the laser sheet are measured based on the images taken. Further, the velocity field of the three velocity components in three-dimensional space is measured by obtaining three velocity components within a plurality of planes spaced apart in a z-axis direction perpendicular to the laser sheet and stacking the three velocity components within the plurality of planes in the z-axis direction. The sound source distribution around the object is measured from the velocity field.

摘要翻译： 提供了一种用于测量三维空间中的声源分布的装置，其中包含在物体周围的示踪剂颗粒在XY平面内用二维激光片照射两分之一时间间隔，被照射的图像 采用示踪剂颗粒，并且基于所拍摄的图像测量激光片中的示踪剂颗粒的两个面内速度分量和垂直于激光片的一个面外速度分量。 此外，三维空间中的三个速度分量的速度场通过在垂直于激光片的z轴方向上间隔开的多个平面内获得三个速度分量并将三个速度分量堆叠在多个 平面在z轴方向。 物体周围的声源分布是从速度场测量的。

公开(公告)号：US20120216619A1

公开(公告)日：2012-08-30

申请号：US13505869

申请日：2010-11-01

申请人： Minoru Teramura ,  Yuichi Fukuchi

发明人： Minoru Teramura ,  Yuichi Fukuchi

IPC分类号： G01H5/00

CPC分类号： G01M9/067 ,  G01H9/002 ,  G01M17/007 ,  G01P3/806

摘要： A device for measuring a sound source distribution in three-dimensional space is provided in which tracer particles included in a steady flow around an object (12) are irradiated with a two-dimensional laser sheet (Ls) within an x-y plane at two times having a very short time interval, images of the irradiated tracer particles are taken from two intersecting directions in the laser sheet (Ls) by imaging means (32A, 32B), and two in-plane velocity components of the tracer particles in the laser sheet (Ls) and one out-of-plane velocity component perpendicular to the laser sheet (Ls) are measured based on the images taken at the two times. Further, the velocity field of the three velocity components in three-dimensional space is measured by obtaining three velocity components within a plurality of planes spaced apart in a z-axis direction perpendicular to the laser sheet (Ls) and stacking the three velocity components within the plurality of planes in the z-axis direction. Thus, since the sound source distribution measuring means measures the sound source distribution around the object (12) from the velocity field of the three three-dimensional velocity components based on the Proudman theorem, it is possible to measure the sound source distribution in three-dimensional space with good precision.

摘要翻译： 提供了一种用于测量三维空间中的声源分布的装置，其中包围在物体（12）周围的稳定流中的示踪剂颗粒在XY平面内用二维激光片（Ls）照射两次， 非常短的时间间隔，通过成像装置（32A，32B）从激光片（Ls）中的两个相交方向拍摄照射的示踪剂颗粒的图​​像，并且激光片中的示踪剂颗粒的两个面内速度分量 Ls）和垂直于激光片（Ls）的一个面外速度分量基于在两次拍摄的图像来测量。 此外，三维空间中的三个速度分量的速度场通过在垂直于激光片（Ls）的z轴方向上间隔开的多个平面内获得三个速度分量并将三个速度分量堆叠在三维空间内 多个平面在z轴方向上。 因此，由于声源分布测量装置基于Proudman定理从三个三维速度分量的速度场测量对象（12）周围的声源分布，因此可以测量三维三维速度分量中的声源分布， 三维空间具有良好的精度。

公开(公告)号：US20120126032A1

公开(公告)日：2012-05-24

申请号：US13302046

申请日：2011-11-22

申请人： Kei Ambo ,  Makoto Yanaka ,  Yuji Ishitsuka ,  Yuichi Fukuchi

发明人： Kei Ambo ,  Makoto Yanaka ,  Yuji Ishitsuka ,  Yuichi Fukuchi

IPC分类号： B05B15/00

CPC分类号： G01M9/067 ,  B05B7/0408 ,  B05B7/0475 ,  B05B7/0483 ,  B05B7/067 ,  B05B7/068 ,  B05B14/00

摘要： Tracer particles together with air are jetted from a nozzle of a seeder into a hood, the air is guided by a collision surface of the hood, deflected to a downstream side in an airflow direction in a wind tunnel, and flows out into the wind tunnel through an opening of the hood. Tracer particles having a large diameter fly straightly without being drifted by the deflected air and collide with the collision surface and are trapped thereon and are prevented from being supplied into the wind tunnel. Tracer particles having a small diameter are drifted by the deflected air, thereby deflected, and supplied into the wind tunnel without collision with and adhesion to the collision surface.

摘要翻译： 示踪剂颗粒与空气一起从播种机的喷嘴喷射到发动机罩中，空气被引擎罩的碰撞表面引导，在风洞中沿气流方向偏转到下游侧，并流入风洞 通过敞篷的开口。 具有大直径的示踪剂颗粒直线飞行而不被偏转的空气漂移并与碰撞表面碰撞并被捕获并被防止被供应到风洞中。 具有小直径的示踪剂颗粒被偏转的空气漂移，从而偏转，并且供应到风洞中而不与碰撞表面碰撞并粘附。

公开(公告)号：US08910890B2

公开(公告)日：2014-12-16

申请号：US13302046

申请日：2011-11-22

申请人： Kei Ambo ,  Makoto Yanaka ,  Yuji Ishitsuka ,  Yuichi Fukuchi

发明人： Kei Ambo ,  Makoto Yanaka ,  Yuji Ishitsuka ,  Yuichi Fukuchi

IPC分类号： B05B1/26 ,  G01M9/06 ,  B05B7/04 ,  B05B7/06 ,  B05B15/04

CPC分类号： G01M9/067 ,  B05B7/0408 ,  B05B7/0475 ,  B05B7/0483 ,  B05B7/067 ,  B05B7/068 ,  B05B14/00

摘要： Tracer particles together with air are jetted from a nozzle of a seeder into a hood, the air is guided by a collision surface of the hood, deflected to a downstream side in an airflow direction in a wind tunnel, and flows out into the wind tunnel through an opening of the hood. Tracer particles having a large diameter fly straightly without being drifted by the deflected air and collide with the collision surface and are trapped thereon and are prevented from being supplied into the wind tunnel. Tracer particles having a small diameter are drifted by the deflected air, thereby deflected, and supplied into the wind tunnel without collision with and adhesion to the collision surface.

摘要翻译： 示踪剂颗粒与空气一起从播种机的喷嘴喷射到发动机罩中，空气被引擎罩的碰撞表面引导，在风洞中沿气流方向偏转到下游侧，并流入风洞 通过敞篷的开口。 具有大直径的示踪剂颗粒直线飞行而不被偏转的空气漂移并与碰撞表面碰撞并被捕获并被防止被供应到风洞中。 具有小直径的示踪剂颗粒被偏转的空气漂移，从而偏转，并且供应到风洞中而不与碰撞表面碰撞并粘附。