Advances in real-time holographic interferometry for the measurement of vibrations and deformations
| Autor: | J. Frejlich, P.M. Garcia |
|---|---|
| Rok vydání: | 1999 |
| Předmět: |
Materials science
business.industry Mechanical Engineering Photorefractive effect Holographic interferometry Atomic and Molecular Physics and Optics Electronic Optical and Magnetic Materials Crystal Vibration Optics Electronic speckle pattern interferometry Molecular vibration Vibration measurement Laser illumination Electrical and Electronic Engineering business |
| Zdroj: | Optics and Lasers in Engineering. 32:515-527 |
| ISSN: | 0143-8166 |
| DOI: | 10.1016/s0143-8166(99)00073-1 |
| Popis: | We describe the latest improvements in holographic interferometry that enable the real-time measurement of vibrational modes and static deformations in surfaces using low-power laser illumination and a photorefractive Bi 12 TiO 20 crystal as the recording medium. An efficient setup has been developed where the most critical elements have been optimized: target illumination and backscattered light collection, distribution of light between the object and reference beams, and stabilization system operation. Experimental results for vibration and deformatiom measurement are reported. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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