Publication Date:
2011-06-10
Description:
A novel technique is represented that allows one to measure vibrations from a distant object with micron and sub-micron amplitudes in real time. The method is based on the speckle interference phenomena and speckle pattern analysis. The scheme allows us to use a single photodiode as a photo-detector and to obtain information from an analog signal without any additional post-processing, which significantly simplifies the device realization compared with the available today laser vibrometers based both on interferometric and on speckle pattern analysis principles. The scheme investigated was implemented as a device and several studies of the practical applications were carried out. Content Type Journal Article Pages 1-5 DOI 10.1007/s00340-011-4585-1 Authors A. A. Veber, General Physics Institute, GSP-1, Vavilov str., 38, Moscow, 119991 Russia A. Lyashedko, General Physics Institute, GSP-1, Vavilov str., 38, Moscow, 119991 Russia E. Sholokhov, General Physics Institute, GSP-1, Vavilov str., 38, Moscow, 119991 Russia A. Trikshev, General Physics Institute, GSP-1, Vavilov str., 38, Moscow, 119991 Russia A. Kurkov, General Physics Institute, GSP-1, Vavilov str., 38, Moscow, 119991 Russia Y. Pyrkov, General Physics Institute, GSP-1, Vavilov str., 38, Moscow, 119991 Russia A. E. Veber, General Physics Institute, GSP-1, Vavilov str., 38, Moscow, 119991 Russia V. Seregin, General Physics Institute, GSP-1, Vavilov str., 38, Moscow, 119991 Russia V. Tsvetkov, General Physics Institute, GSP-1, Vavilov str., 38, Moscow, 119991 Russia Journal Applied Physics B: Lasers and Optics Online ISSN 1432-0649 Print ISSN 0946-2171
Print ISSN:
0946-2171
Electronic ISSN:
1432-0649
Topics:
Physics
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