Surface contour from a low-frequency vibrating object using phase differences and the Fourier-transform method
| Autor: | Fernando Mendoza-Santoyo, Gustavo Rodriguez-Zurita, Ramón Rodríguez-Vera, Juan A. Rayas, Cruz Meneses-Fabian |
|---|---|
| Rok vydání: | 2007 |
| Předmět: |
Physics
Cantilever business.industry Astrophysics::Instrumentation and Methods for Astrophysics Phase (waves) Low frequency Frame rate Atomic and Molecular Physics and Optics Edge detection Electronic Optical and Magnetic Materials Structured-light 3D scanner symbols.namesake Optics Fourier transform symbols Electrical and Electronic Engineering Physical and Theoretical Chemistry business Phase retrieval |
| Zdroj: | Optics Communications. 272:310-313 |
| ISSN: | 0030-4018 |
| DOI: | 10.1016/j.optcom.2006.11.068 |
| Popis: | A novel phase extraction method for fringe patterns with carrier frequency and with slow variation with time is presented. It is based on the Fourier-transform method and on the quotient of the two adjacent frame fringe patterns. The fringe patterns are obtained by fringe projection on a fixed end of a homogenous cantilever undergoing harmonic vibration. Contours of different vibrating modes of the cantilever for frequencies less than that of the camera frame rate (33.3 ms) may be obtained with this method. Results are shown for the theoretical analysis and the experimental mode contours. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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