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