本文应用Moire法确定三维非对称的温度场。平行光通过折射率存在梯度的场,光线产生偏转,即产生云纹效应。在十三个方向上,测量了182个数据点,用Radon数值逆变换,得到了Z为常数的某个平面的折射率分布(即温度场)。

The paper describes the analyses of 3-D asymmetric temperature field by moire deflectometry. The method is based on measuring the deflection of rays from a collimated light beam due to gradients in refractive index. The deflection data were reduced from the deflecto-grams at 182 positions of 13 viewing angles, and the temperature field in a particular plan (Z=constant) was obtained by solving the inverse Radon transform.