SCHEIMPFLUG STEREOCAMERA FOR PARTICLE IMAGE VELOCIMETRY IN LIQUID FLOWS

被引：196

作者：

PRASAD, AK

JENSEN, K

机构：

[1] Department of Mechanical Engineering, University of Delaware, Newark, DE

[2] Department of Mechanical Engineering, University of Illinois at Chicago, Chicago, IL

来源：

APPLIED OPTICS | 1995年 / 34卷 / 30期

关键词：

PARTICLE IMAGE VELOCIMETRY; STEREOCAMERA; SCHEIMPFLUG;

D O I：

10.1364/AO.34.007092

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

A novel stereocamera has been developed based on the angular-displacement method, wherein the two camera axes are oriented in a nonorthogonal manner toward the object plane. The stereocamera satisfies the Scheimpflug condition such that the image plane, the object plane, and the lens plane are nominally colinear. A unique feature of the stereocamera is the introduction of a liquid prism between the object plane and the recording lens, which significantly reduces the radial distortions that arise when imaging through a thick liquid layer. The design of the camera and its computer optimization with geometric modeling are described. Results indicate that the use of a liquid prism reduces the amount of radial distortion by an order of magnitude. The results have been shown to agree very well with experiments. (C) 1995 Optical Society of America

引用

页码：7092 / 7099

页数：8

共 9 条

[1] PARTICLE-IMAGING TECHNIQUES FOR EXPERIMENTAL FLUID-MECHANICS [J].