Abramson N
Appl Opt. 1972 May 1;11(5):1143-7. doi: 10.1364/AO.11.001143.
A new analog computer has been constructed and used for the practical evaluation of hologram interference fringes. Stretched strings represent the pathlength of the light rays that travel from the light source to the observer via the object. The method can be used in a very general way, and it is only concerned with the number of fringes, not with the type of fringe pattern. Therefore, the calculation of the displacement is independent of the actual type of motion, e.g., rotation, translation, deformation, or extension. Very little mathematical, optical, or linguistic preknowledge is needed for the use of the method.
一台新型模拟计算机已被制造出来，并用于全息干涉条纹的实际评估。拉伸的弦线代表光线从光源经物体传播到观察者的光程。该方法具有非常广泛的适用性，它只关注条纹的数量，而不关心条纹图案的类型。因此，位移的计算与实际运动类型无关，例如旋转、平移、变形或伸长。使用该方法几乎不需要数学、光学或语言方面的先验知识。
