Multiple-aperture speckle method applied to local displacement measurements
| Autor: | Luciano Angel, Néstor Bolognini, Myrian Tebaldi |
|---|---|
| Rok vydání: | 2007 |
| Předmět: |
Multiple exposure
Accuracy and precision Computer science business.industry Aperture Astrophysics::Instrumentation and Methods for Astrophysics Atomic and Molecular Physics and Optics Displacement (vector) Electronic Optical and Magnetic Materials Speckle pattern symbols.namesake Interferometry Optics Fourier transform symbols Electrical and Electronic Engineering Physical and Theoretical Chemistry business Rotation (mathematics) |
| Zdroj: | Optics Communications. 274:23-31 |
| ISSN: | 0030-4018 |
| DOI: | 10.1016/j.optcom.2007.02.005 |
| Popis: | The goal of this work is to analyze the measurement capability of the modified speckle photography technique that uses different multiple aperture pupils in a multiple exposure scheme. In particular, the rotation case is considered. A point-wise analysis procedure is utilized to obtain the fringes required to access to the local displacement measurements. The proposed arrangement allows simultaneous displaying in the Fourier plane several fringes system each one associated with different rotations. We experimentally verified that the local displacement measurements can be determined with a high precision and accuracy. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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