| 动态激光散斑测超小型物体动态特性 |
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| 引用本文： | 张培强 张青川. 动态激光散斑测超小型物体动态特性[J]. 实验力学, 1990, 5(4): 440-446 |
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| 作者姓名： | 张培强 张青川 |
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| 作者单位： | 中国科技大学，中国科技大学，中国科技大学 |
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| 摘 要： | 本文基于动态散斑场的相关统计特性,发展了一种系统识别技术,这是一条有效的用来分析超小型物体动态特性的途径.我们对重为8g的微型悬臂梁,实时记录了梁振动的自由响应时间域信号,对其进行了动态特性计算机分析和实验研究。
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| 关 键 词： | 激光 散斑 超小型 物体 动态 振动 |
To Measure Dynamic Characteristics of Ultra-Small Body by Laser Specle Movement |
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| Zhang Peiqiang Zhang Qingchuan Lian Dongxia. To Measure Dynamic Characteristics of Ultra-Small Body by Laser Specle Movement[J]. Journal of Experimental Mechanics, 1990, 5(4): 440-446 |
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| Authors: | Zhang Peiqiang Zhang Qingchuan Lian Dongxia |
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| Affiliation: | Univ.of Sci.and Tech.of China |
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| Abstract: | A method based on correlation statistic characteristics of space speckle movement and using proper technique of system identification is developed. This is an effective approach used to analyse the dynamic characteristics of an ultra-small body. In our work, a cantilever beam weighted 8 grams is analysed and the information of free response recorded in real time is used. |
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| Keywords: | speckle free response system identification |
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