相移法获取三维光弹特征相位差的方法
发布时间：2018-09-16 19:44
【摘要】：对于三维光弹模型,次主应力及其方向沿入射光连续变化,根据光学等效的原理,可以将三维光弹模型等效为一个包含线性相位延迟器和旋光器的光学模型。在集成光弹法中,对于每一个测量点,研究者必需通过实验获取三个特征参数。提出了一种用于确定集成光弹中全场特征相位差的五步相移法,给出了偏振光场中元器件的设置方法,并运用Jones算子推导出相移法得出的光强公式。最后使用斜射法对径向受压圆盘进行实验,验证了方法的有效性。
[Abstract]:According to the principle of optical equivalence, the three-dimensional photoelastic model can be equivalent to an optical model containing a linear phase retarder and a rotator. A five-step phase-shifting method is proposed to determine the characteristic phase difference of the whole field in integrated photoelasticity. The method of setting the components in polarized light field is given. The intensity formula derived from the phase-shifting method is deduced by using Jones operator.
【作者单位】： 上海理工大学光电信息与计算机工程学院;
【基金】：上海市研究生创新基金项目(JWCXSL1301)
【分类号】：O348.1
本文编号：2244591
[Abstract]:According to the principle of optical equivalence, the three-dimensional photoelastic model can be equivalent to an optical model containing a linear phase retarder and a rotator. A five-step phase-shifting method is proposed to determine the characteristic phase difference of the whole field in integrated photoelasticity. The method of setting the components in polarized light field is given. The intensity formula derived from the phase-shifting method is deduced by using Jones operator.
【作者单位】： 上海理工大学光电信息与计算机工程学院;
【基金】：上海市研究生创新基金项目(JWCXSL1301)
【分类号】：O348.1
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1 王汝鹏 ,王魏幭 ,郑瑞芬;三维光弹模型内部应力全场分析的进一步研究[J];上海力学;1983年04期
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