Tomographic reconstruction of the temperature distribution in a convective heat flow using multidirectional holographic interferometry.
Tomographic reconstruction of the temperature distribution in a convective heat flow using multidirectional holographic interferometry.
复制标题
使用多向全息干涉测量法对对流热流中的温度分布进行层析成像重建。
DOI：
10.1364/ao.28.001508
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发表时间：
1989
期刊：
影响因子：
1.9
通讯作者：
J. Woisetschläger
中科院分区：
文献类型：
--
作者：
D. Vukičević;H. Jäger;T. Neger;H. Philipp;J. Woisetschläger
采用双曝光反射式全息技术，获得了非均匀相位物体的多向干涉数据。利用子条纹分辨率对卷积法重建局部折射率的干涉图进行了评价。为了测试目的，相位对象是通过仔细模拟空气中的对流热流而制成的。重建的折射率场被转换成温度分布，并与独立测量的温度值进行比较，从而提供对层析图质量的严格检查。
Multidirectional interferometric data of an inhomogeneous phase object are obtained by double exposure reflection type holography. The evaluation of the interferograms for a computerized tomographic reconstruction of the local index of refraction by the convolution method is performed with subfringe resolution. For testing purposes the phase object is made by careful modeling of a convective heat flow in air. The reconstructed refractive index field is converted into a temperature distribution and is compared with independently measured temperature values, thus providing a strict examination of the quality of the tomograms.