| 实时确定光弹性参数的积分相移法 |
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| 引用本文： | 雷振坤,亢一澜,云大真. 实时确定光弹性参数的积分相移法[J]. 光学技术, 2004, 30(3): 280-283 |
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| 作者姓名： | 雷振坤 亢一澜 云大真 |
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| 作者单位： | 天津大学,机械学院,力学系,天津,300072;大连理工大学,工程力学系,大连,116024 |
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| 基金项目： | 国家自然科学基金项目(No.10232030,No.10202017) |
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| 摘 要： | 积分相移法可以实时测量光弹性参数,在光弹性实验的某些变载测试中将有一定的发展潜力。推导了积分相移法三种典型算法,通过对径压缩圆盘问题的理论仿真模拟,考察了载荷变化对积分相移法的影响,给出了降低这种影响的具体措施。
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| 关 键 词： | 数字光弹性 实时测量 相移法 等色线 等倾线 |
| 文章编号： | 1002-1582(2004)03-0280-04 |
| 修稿时间： | 2003-08-21 |
Real-time determination of photoelastic parameters by integrated phase-shifting method |
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| LEI Zhen-kun,KANG Yi-lan,YUN Da-zhen. Real-time determination of photoelastic parameters by integrated phase-shifting method[J]. Optical Technique, 2004, 30(3): 280-283 |
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| Authors: | LEI Zhen-kun KANG Yi-lan YUN Da-zhen |
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| Affiliation: | LEI Zhen-kun~1,KANG Yi-lan~1,YUN Da-zhen~2 |
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| Abstract: | Among data acquisition techniques in digital photoelasticity, the integrated phase shifting technique (IPST) can real-time analyze the photoelastic parameters at a video rate. Three algorithms of the IPST are deduced based on real-time phase-shifting concept. The simulations of a circular disk under diametric compression demonstrate the influence of the static and increasing loadings on the algorithms and a guideline is given to alleviate the influence. The IPST will have active potential in real-time measurement of photoelastic experiments. |
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| Keywords: | digital photoelasticity real-time measurement phase shifting method isochromatics isoclinics |
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