We report on applications of a two-channel moiré deflectometry wavefront sensor in measurements of wavefront aberrations caused by convective air turbulence generated by a 2D temperature gradient (TG). Data of the wavefront sensor are analysed and the aberrated wavefront is reconstructed and expanded versus Zernike annular polynomials. The results show that variances of the Zernike annular coefficients (except the piston aberration) increase with highest temperature relative to ambient temperature. In particular, we found that the variances of X- and Y -tilt aberration coefficients are not equal when the highest temperature is larger than ${40}^{\circ }$C. This means that the produced turbulence is not isotropic. Plots of the Zernike annular coefficient variances could be divided into three distinct regions with different slopes.

我们报告了双通道莫尔偏转波前传感器在测量由二维温度梯度 (TG) 产生的对流空气湍流引起的波前像差中的应用。分析波前传感器的数据，并相对于泽尼克环形多项式重建和扩展畸变波前。结果表明，相对于环境温度，Zernike 环形系数的方差（活塞像差除外）随着最高温度的增加而增加。特别是，我们发现，方差的X -和Ÿ当最高气温大于-tilt像差系数不相等${40}^{\circ }$C. 这意味着产生的湍流不是各向同性的。Zernike 环形系数方差图可以分为三个不同斜率的不同区域。