摘要
针对基于数字散斑相关法(DSCM)的残余应力测量系统,分析了影响系统精度的主要误差因素,并根据各个误差因素的形成原理,提出了减少或去除误差的方法。通过实验数据的对比,验证了误差因素对测量系统的影响,同时验证了所给出的减少误差的方法的可行性,为基于数字散斑相关法的测量系统的误差分析提供了有益的参考。
In view of the bending tube residual stress measurement system based on digital speckle correlation method （DSCM）, the main error elements are analyzed comprehensively. According to the theory of the error elements, the methods to reduce the errors are proposed. At the end, the error elements and the methods which reduce the errors are verified through an experiment. It is a useful reference to the similar measure system based on the digital speckle correlation method.
出处
《激光与光电子学进展》
CSCD
北大核心
2011年第11期103-110,共8页
Laser & Optoelectronics Progress
基金
国家自然科学基金(50805009)资助课题
关键词
测量
误差分析
数字散斑相关法
残余应力
弯管
measurement error analysis digital speckle correlation method residual stress bending tube
