一、消除有机玻璃观察窗热应变影响的全息差分干涉方法 1.全息干涉技术所用的观察窗需要注意的一个问题 观察窗加工要求低是全息干涉著名特点之一。过去文献多强调其光学质量无关重要的一面(例如文献[1]217页),但对观察窗不可避免地发生微变形,因而引进测量误差的另一面,则往往略而不提。所举出 First, the elimination of plexiglass observation window thermal strain holographic differential interference method 1. Holographic interference technique used in the observation window need to pay attention to a problem observation window processing requirements is low holographic interference is one of the famous features. In the past, much emphasis had been placed on the irrelevant aspects of optical quality (eg, [1], p. 217), but microscopic deformation of the viewing window was inevitable, so the introduction of the other side of the measurement error was often omitted. Cited