几种电子剪切散斑相位求解法在简支梁微小位移测量中的应用比较分析

Several Phase Solving Methods of ESSPI Used and Analyzed in Micro-displacement Measurement of Simply Supported Beam

本文介绍了电子剪切散斑干涉技术时间相移法与空间载波Fourier变换法两种求相位技术,并应用不同的相移技术对简支梁的位移场进行测量分析比较。

The phase solving techniques of temporal phase-shifting and spatial carrier fourier transform method of ESSPI are introduced in this paper. And the different phase-shifting techniques are analyzed and used to measure the field of displacement of simply supported beam.