具有物体共轭重建(OCR)的全息测速:流体和固体力学中的同步速度映射

Proceedings of the Royal Society of London. Series A. Mathematical and Physical Sciences Pub Date : 2004-07-08 DOI:10.1098/rspa.2003.1265

D. Barnhart, N. Halliwell, J. Coupland

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引用次数: 6

摘要

本文报道了全息测速技术的一个重要进展，它可以同时测量流体力学和固体力学中的位移。这种新方法被称为物体共轭重建(OCR)，它将全息速度测量和全息干涉测量相结合，为研究整个体积的表面流动相互作用提供了一种单一的测量技术。通过复杂相关处理，它可以对速度场的所有三个分量进行亚波长位移分辨率，动态范围超过100:1。在使用OCR和复杂相关处理之前，测量表面流动相互作用需要多种技术以混合方式应用，这阻碍了广泛应用。

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Holographic velocimetry with object conjugate reconstruction (OCR): simultaneous velocity mapping in fluid and solid mechanics

This paper reports a significant step forward in holographic velocimetry, which provides simultaneous displacement measurements in fluid and solid mechanics. Known as object conjugate reconstruction (OCR), this new approach unifies the disciplines of holographic velocimetry and holographic interferometry and provides a single measurement technique for the study of surface–flow interactions throughout a volume. Using complex–correlation processing, it enables sub–wavelength displacement resolution for all three components of a velocity field and a dynamic range exceeding 100:1. Prior to OCR, and the use of complex-correlation processing, measurement of surface-flow interactions required multiple techniques applied in a hybrid fashion, which had precluded widespread use.

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Proceedings of the Royal Society of London. Series A. Mathematical and Physical Sciences

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期刊介绍： Proceedings A publishes articles across the chemical, computational, Earth, engineering, mathematical, and physical sciences. The articles published are high-quality, original, fundamental articles of interest to a wide range of scientists, and often have long citation half-lives. As well as established disciplines, we encourage emerging and interdisciplinary areas.