| 散斑图像相关数字技术在海洋平台结构模型振动位移测量中的应用 |
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| 引用本文： | 王言磊,欧进萍.散斑图像相关数字技术在海洋平台结构模型振动位移测量中的应用[J].世界地震工程,2006,22(1):94-98. |
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| 作者姓名： | 王言磊 欧进萍 |
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| 作者单位： | 哈尔滨工业大学,土木工程学院,黑龙江,哈尔滨,150090 |
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| 基金项目： | 国家高技术研究与发展(863)计划项目(2001AA602023) |
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| 摘 要： | 采用散斑图像相关数字技术以非接触方式对正弦波和地震波作用下的海洋平台结构模型振动位移进行了监测,并对测量结果进行了频谱分析,同时还与传统位移传感器测得的结果做了对比分析。试验结果与分析表明该方法具有较高的精度和工程可用性,且对试验设备和测量环境要求不高,很适合现场非接触测量。
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| 关 键 词： | 散斑图像相关 非接触测量 振动测量 CCD |
| 文章编号： | 1007-6069(2006)01-0094-05 |
| 收稿时间： | 2005-07-21 |
| 修稿时间： | 2005-11-25 |
Application of a digital speckle image correlation technique to vibration displacement measurement of an offshore platform model |
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| WANG Yan-lei,OU Jin-ping.Application of a digital speckle image correlation technique to vibration displacement measurement of an offshore platform model[J].World Information On Earthquake Engineering,2006,22(1):94-98. |
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| Authors: | WANG Yan-lei OU Jin-ping |
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| Institution: | School of Civil Engineering, Harbin Institute of Technology, Harbin 150090, China |
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| Abstract: | In this paper a digital technique of speckle image correlation is introduced in monitoring vibration displacement of an offshore platform model.And spectrum analysis of measuring results is carried out.The results are compared to those measured by traditional displacement sensor at the same time.Experimental results and analysis are shown that the method can be used to determine vibration displacement with reasonable accuracy.Besides,this method is requested ordinarily for testing equipments and experimental environment,and is especially suitable for field measurement. |
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| Keywords: | speckle image correlation non-contact measurement vibration measurement CCD |
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