| 双光路电子散斑振动测量系统 |
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| 引用本文： | 贾书海,乐开端,谭玉山,唐经源. 双光路电子散斑振动测量系统[J]. 光子学报, 2000, 29(2): 126-130 |
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| 作者姓名： | 贾书海 乐开端 谭玉山 唐经源 |
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| 作者单位： | 西安交通大学机械学院激光与红外应用研究所,西安,710049 |
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| 基金项目： | 中国科学院资助项目，59905020， |
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| 摘 要： | 本文给出了一种双光路电子散斑振动测量系统,该系统结合了普通ESPI离面振动测量光路和退敏感光路,既能对较大振幅范围的振动进行定性观测,又能实现全场自动定量分析,同时避免了相位去包裹处理.系统具有较高的抗干扰能力,可以应用于实际工程中复杂非连续结构的振动特性分析.
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| 关 键 词： | 电子散斑 大振幅振动测量 相移 |
| 收稿时间： | 1999-09-21 |
| 修稿时间： | 1999-09-21 |
THE SYSTEM OF DOUBLE-OPTICAL-PATH ESPI FOR THE VIBRATION MEASUREMENT |
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| Jia Shuhai,Yue Kaiduan,Tan Yushan,Tang Jingyuan. THE SYSTEM OF DOUBLE-OPTICAL-PATH ESPI FOR THE VIBRATION MEASUREMENT[J]. Acta Photonica Sinica, 2000, 29(2): 126-130 |
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| Authors: | Jia Shuhai Yue Kaiduan Tan Yushan Tang Jingyuan |
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| Affiliation: | Laser & IR Institute, School of Mechanical Engineering, Xi′an Jiaotong University, Xi′an, Shaanxi, 710049, China |
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| Abstract: | In this paper,a system of double optical path ESPI for measuring vibration with larger amplitude is proposed.This system contains the common ESPI optical path for measuring out 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 practical engineering. |
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| Keywords: | Electronic speckle pattern interferometry(ESPI) Large vibration measurement Phase shifting |
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