Composite Vibration Analysis with Modulated Electronic Speckle Shearing Interferometry
| Autor: | Jesus D. R. Valera, Ole J. L⊘kberg |
|---|---|
| Rok vydání: | 1997 |
| Předmět: |
Shearing (physics)
Materials science business.industry Astrophysics::Instrumentation and Methods for Astrophysics Atomic and Molecular Physics and Optics Physics::Fluid Dynamics Vibration Interferometry Speckle pattern Optics Amplitude Shear (geology) Electronic speckle pattern interferometry Physics::Chemical Physics business Shearing interferometer |
| Zdroj: | Optical Review. 4:261-264 |
| ISSN: | 1349-9432 1340-6000 |
| DOI: | 10.1007/s10043-997-0261-4 |
| Popis: | A video speckle shearing interferometer has been used to study sinusoidally vibrating objects. Theroretical and experimental results show that the shear fringe patterns obtained contour the derivatives of the vibration amplitudes only for pure classical modes and when the shear is small. For composite modes, the fringe patterns observed are more difficult to interpret because the optical phase changes that are contoured are functions of both the spatial derivatives of the vibration amplitude and of the vibration phase. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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