相移法獲取三維光彈特征相位差的方法
發(fā)布時間:2018-09-16 19:44
【摘要】:對于三維光彈模型,次主應力及其方向沿入射光連續(xù)變化,根據(jù)光學等效的原理,可以將三維光彈模型等效為一個包含線性相位延遲器和旋光器的光學模型。在集成光彈法中,對于每一個測量點,研究者必需通過實驗獲取三個特征參數(shù)。提出了一種用于確定集成光彈中全場特征相位差的五步相移法,給出了偏振光場中元器件的設(shè)置方法,并運用Jones算子推導出相移法得出的光強公式。最后使用斜射法對徑向受壓圓盤進行實驗,驗證了方法的有效性。
[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.
【作者單位】: 上海理工大學光電信息與計算機工程學院;
【基金】:上海市研究生創(chuàng)新基金項目(JWCXSL1301)
【分類號】:O348.1
本文編號: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.
【作者單位】: 上海理工大學光電信息與計算機工程學院;
【基金】:上海市研究生創(chuàng)新基金項目(JWCXSL1301)
【分類號】:O348.1
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1 王汝鵬 ,王魏幭 ,鄭瑞芬;三維光彈模型內(nèi)部應力全場分析的進一步研究[J];上海力學;1983年04期
2 ;[J];;年期
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