尽管光测弹性学家知道借助于各种规则和方法区分等色线与等倾线,但是,要想获得令人满意的等倾角,往往是困难的.本文描述这样一种方法,它可以获得与等倾线相同的曲线,而不出现等色线.这一方法,利用一个简单的偏振镜,就可容易地被采用.光学原理基本光学原理与那些在散射光光弹性中采用非偏振入射光者是相同的.我们在这里重复一下基本方程与简图(图1).观察者见到的光强为 Although metrology elastomers know that isometric and isometric lines can be distinguished by means of various rules and methods, it is often difficult to obtain a satisfactory dip angle.This article describes a method that can be used to obtain Equivalent to the isostropic curve, without the need for isochromatic lines, this method can easily be used with a simple polarizer Principle of Optics The basic optical principle is the same as those used in the photoelasticity of scattered light with unpolarized incidence The light is the same. We repeat here the basic equations and diagrams (Figure 1). Observers see the light intensity