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1. 发明申请

WO2008031412A3 DEVICE AND METHOD FOR THREE-DIMENSIONAL FLOW MEASUREMENT 审中-公开
标题翻译：装置和方法三维测流
公开(公告)号：WO2008031412A3
公开(公告)日：2008-07-10
申请号：PCT/DE2007001619
申请日：2007-09-07
申请人： MTU AERO ENGINES GMBH , GERLACH CHRISTOF , ZIELINSKI MICHAEL
发明人： GERLACH CHRISTOF , ZIELINSKI MICHAEL
IPC分类号： G01P5/00 , G01P5/20 , G01P13/04
CPC分类号： G01P5/001 , G01P5/20 , G01P13/04 , G01P13/045
摘要： The invention relates to a device for three-dimensional flow measurement, especially for carrying out particle image velocimetry (PIV) measurements, said device comprising at least one illumination device (12) for illuminating tracer particles (18) moving in a measuring volume (20) of the flow to be examined, and at least one camera (24) for repeatedly reproducing the moving tracer particles (18), the camera (24) comprising at least one objective (14) provided with a ring diaphragm arranged in front of, or on, the objective. The invention also relates to a method for three-dimensional flow measurement, especially for carrying out particle image velocimetry (PIV) measurements. Said method includes especially the recording and reproduction of at least two temporally successive images of the tracer particles (18), the images being recorded by at least one camera (24) and the camera (24) comprising at least one objective (14) such that the tracer particles (18) are reproduced as rings or ring segments. The position of the particles in relation to the focal plane can be identified by an objective with chromatic aberration. Points in the focal plane, having a radius larger than zero, can be reproduced by a prism.
摘要翻译：本发明涉及一种用于三维流量测量装置，尤其是用于执行颗粒图像Velocimetry-（PIV）测量，用至少一个照明设备（12），用于在所述测量体积（20）照射到被研究的流动移动示踪粒子（18 和）至少一个摄像机（24），用于移动示踪粒子（18）的多个成像，所述照相机（24）的至少一个透镜（14），其具有前部或设置在其上的，环形隔膜（16）。用于三维流量测量的本发明的方法，特别是用于进行颗粒图像Velocimetry-（PIV）测量，特别是包括在记录和示踪粒子中的至少两个在时间上连续的图像（18）的成像，其特征在于，所述图像记录（由至少一个摄像机 24）进行，并且所述照相机（24）的至少一个透镜（14），以使示踪粒子（18）被示出为环或环段。通过具有色差的透镜，颗粒的方面中的位置可以在焦平面被识别。通过可以显示平衡点棱镜大于零焦平面的半径。

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