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实时确定光弹性参数的积分相移法 被引量:1

Real-time determination of photoelastic parameters by integrated phase-shifting method
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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。 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.
出处 《光学技术》 EI CAS CSCD 2004年第3期280-283,288,共5页 Optical Technique
基金 国家自然科学基金项目(No.10232030 No.10202017)
关键词 数字光弹性 实时测量 相移法 等色线 等倾线 digital photoelasticity real-time measurement phase shifting method isochromatics isoclinics
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