Durst F, Stevenson W H
Appl Opt. 1976 Jan 1;15(1):137-44. doi: 10.1364/AO.15.000137.
This report describes the employment of moiré patterns to model visually interference phenomena in general and laser Doppler anemometer signals in particular. The modeling includes signals created in dual beam and reference beam anemometers by both single particles and particle pairs. The considerations are extended to visual modeling of multiparticle signals and the decay of signal quality in the presence of many particles. The fringe model of the laser Doppler anemometer is also considered, and moiré patterns are employed to demonstrate the interference fringes in the crossover region of two intersecting laser beams. Gaussian beam properties are taken into account to allow the effects of improperly designed optical systems to be studied. Instructions for using computer generated transparencies to produce the different moiré patterns are provided to allow the reader to study in detail the various interference phenomena described.
本报告描述了利用莫尔条纹对一般视觉干涉现象进行建模，特别是对激光多普勒风速仪信号进行建模。该建模包括单粒子和粒子对在双光束和参考光束风速仪中产生的信号。考虑因素扩展到多粒子信号的视觉建模以及在存在许多粒子时信号质量的衰减。还考虑了激光多普勒风速仪的条纹模型，并利用莫尔条纹来演示两束相交激光束交叉区域的干涉条纹。考虑了高斯光束特性，以便研究光学系统设计不当的影响。提供了使用计算机生成的透明片来产生不同莫尔条纹的说明，以便读者详细研究所述的各种干涉现象。
