The system of double-optical-path ESPI for the vibration measurement
| Autor: | Yue Kai-duan, Jia Shuhai, Tan Yu-shan |
|---|---|
| Rok vydání: | 2000 |
| Předmět: |
Materials science
Observational error Plane (geometry) business.industry Mechanical Engineering Mode (statistics) Phase unwrapping Atomic and Molecular Physics and Optics Electronic Optical and Magnetic Materials Vibration Optics Optical path Electronic speckle pattern interferometry Vibration measurement Electrical and Electronic Engineering business |
| Zdroj: | Optics and Lasers in Engineering. 34:67-74 |
| ISSN: | 0143-8166 |
| DOI: | 10.1016/s0143-8166(00)00060-9 |
| Popis: | In this paper, a system of double-optical-path electronic speckle pattern interferometry (ESPI) for measuring larger vibration is proposed. This system combines the conventional ESPI optical path for measuring out-of plane vibration and the de-sensitized optical path. It can be used to observe qualitatively and analyze quantitatively the vibration mode. At the same time, the phase unwrapping is avoided. The anti-disturbance capability of this system is high, so it can be used to analyze the vibration characteristics of complex and discontinuous structure in actual engineering. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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