用全息干涉C-T技术重建三维折射率场

Reconstruction of 3 D refractice index fields by interferometric holography computed tomography

本文结合折射率场的先验知识，研究了用全息干涉ＣＴ技术重建三维折射率场的四种方法。通过计算机模拟，考查了数据误差和总观察角大小对重建精度的影响。作为一个应用实例，计算了火焰温度场某一截面的温度分布，并与热电偶测量的值进行了比较。

In this paper,the four methods to reconstruct 3 D refractive index fields by interferometric holography computed tomography have been studied based on the prior knowledge of these fields.Using computer simulation method,the influences of the imput data errors and the sizes of the total viewing angles on the reconstruction precision of these methods have been investigated.As a practical example,the temperature distribution over a given cross section of a flame temperature field are reconstructed and the obtained results are compared with thermocouple measurements.