Birefringence measurements using overlapping of interference fringes;
晶体双折射测量的干涉条纹重迭法
A derivative method combined with Fourier least square fitting was designed to process noised overlapped peaks.
提出了一种含噪音重迭信号的综合处理方法 :先用傅里叶最小二乘法拟合噪音数据 ,然后对拟合后的信号求 2 。
Based on double superposition hypothesis, a higher-order shear deformation theory for composite laminated plates is established, which can fix unknowns and satisfy the stress and displacement continuity conditions at interfaces.
应用双重迭加方法 ,对复合材料层合板建立和导出了未知量不随层数而变化 ,且满足层间横向剪应力和位移连续性条件的位移场模型以及相应的位移形式的平衡方程和边界条件 。