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LaVision为用户提供了一种符合自己成本和效益的体视层析粒子成像测速系统


2013年2月17日    阅读次数: 197   
  

Monday, 8. October 2012

LaVision adds a new Tomo-PIV software package to its volumetric measurements techniques enabling analysis of images from volumetric PIV measurements using only 2 cameras



Effect of Motion Tracking Enhancement on the reconstruction of vortex structures: MART reconstruction (left) is not enough to extract the true vortex structures from the laminar jet flow. Only with MTE (right), the vortex rings and their breakdown farther upstream become clearly visible.
 
LaVision’s new Tomo-PIV software package allows a cost effective entry to instantaneous volumetric PIV by combining the new reconstruction method Motion Tracking Enhancement (MTE)* together with the well proven Multiplicative Algebraic Reconstruction Technique (MART). This enables volumetric PIV experiments using only 2 cameras. Using the traditional 4 camera setup still results in higher spatial resolution and larger volume thicknesses can be examined, the new 2 camera approach however is a very good compromise between measurement accuracy and investment effort. Furthermore an easy upgrade of existing Stereo-PIV systems to 3D3C PIV measurements is possible with this new LaVision software package.
 


*Novara, Batenburg, Scarano,
 Motion tracking-enhanced MART for
 tomographic PIV,
 Meas. Sci. Technol. 21 (2010)

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