Using the digital phase-shifting projection Moiré method and wavelet transformation to measure the deformation of a PMMA cantilever beam

Chia Ming Liu, Lien Wen Chen

Research output: Contribution to journalArticlepeer-review

6 Citations (Scopus)

Abstract

In the present study, the digital projection Moiré method with wavelet transformation and phase-shifting technique has been applied to measure the out-of-plane deformation of a PMMA (polymethyl methacrylate) cantilever beam. In the digital projection Moiré method, the parallel grating lines are projected onto the specimen surface and captured by a CCD camera. The projection Moiré patterns are generated by the captured image and a virtual reference grating produced from the digital image process. Clear Moiré patterns can be obtained by the 2D Debauchies wavelet transformation. The phase-shifting method can also be realized by changing the phase of the virtual reference grating. Finally, the experimental results are compared with the calculations from the finite element method.

Original languageEnglish
Pages (from-to)576-582
Number of pages7
JournalPolymer Testing
Volume24
Issue number5
DOIs
Publication statusPublished - 2005 Aug

All Science Journal Classification (ASJC) codes

  • Organic Chemistry
  • Polymers and Plastics

Fingerprint Dive into the research topics of 'Using the digital phase-shifting projection Moiré method and wavelet transformation to measure the deformation of a PMMA cantilever beam'. Together they form a unique fingerprint.

Cite this