Abstract

In this work, we report experimental results of a proposed gear system for optimization of phase shifts used for extraction of phase between a reference and a test object in a Double Aperture Common Path Interferometer. The electromechanical approach is designed to increase the precision and control of automated transverse translation of a diffraction grating to obtain equidistant displacements, typically carried out manually. Calculations and analytics for the design and operation of the mechanical gear system are presented. The experimental results demonstrate significant error minimizing for equally spaced phase shifts compared to a previously reported implementation of our research group. The proposed system represents a reliable and low-cost implementation to improve the obtaining of suitable interferogram captures for equally spaced phase-shifting interferometry techniques.

摘要

在这项工作中，我们报告了所提出的齿轮系统的实验结果，该齿轮系统用于优化相移，用于在双孔径共路径干涉仪中提取参考和测试对象之间的相位。机电方法旨在提高衍射光栅自动横向平移的精度和控制，以获得等距位移，通常是手动执行的。介绍了机械齿轮系统的设计和操作的计算和分析。实验结果表明，与我们研究组之前报告的实施相比，等间隔相移的误差显着最小化。