Design and experiment of electronic speckle shearing phase-shifting pattern interferometer
Instrumentation and Detectors
2016-02-24 v1 Optics
Abstract
An electronic speckle shearing phase-shifting pattern interferometer (ESSPPI) based on Michelson interferometer was based in this paper. A rotatable mirror driven by a step motor in one of its reflective arm is used to generate an adjustable shearing and the mirror driven by piezoelectric transducer (PZT) in the other reflective arm was used to realize phaseshifting. In the experiments, the deformation of an aluminum plate with the same extern-force on different positions and different forces on the same position is measured. Meanwhile, the phase distribution and phase-unwrap image of the aluminum plate with the extern-force on its center position is obtained by the four-step phase-shifting method.
Cite
@article{arxiv.1602.06975,
title = {Design and experiment of electronic speckle shearing phase-shifting pattern interferometer},
author = {Tianhua Xu and Chao Jing and Wencai Jing and Hongxia Zhang and Dagong Jia and Yimo Zhang},
journal= {arXiv preprint arXiv:1602.06975},
year = {2016}
}
Comments
3 pages