Investigation of Wedge Waves Using Digital Shearing Speckle Interferometry

Investigation of Wedge Waves Using Digital Shearing Speckle Interferometry
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使用数字剪切散斑干涉测量法研究楔波

DOI:
10.1007/s10765-014-1737-7
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发表时间:
2015-06
影响因子:
2.2
通讯作者:
Ni, Xiaowu
Ni, Xiaowu
中科院分区:
工程技术4区
文献类型:
--
作者:
Han, Bing;Zhang, Hongchao;Shen, Zhonghua;Ni, Xiaowu

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利用基于迈克尔逊干涉仪的数字剪切散斑干涉术研究了激光产生的楔形波在楔形体中的传播。与传统的测量方法不同,该方法利用激光束照射楔形物表面产生楔形波,并利用另一束激光作为探测光。从表面反射的光束通过干涉仪装置,一个迈克尔逊干涉仪,允许成像的平面外表面位移。利用电荷耦合器件拍摄的一系列干涉图,可以观察到楔形波沿着楔尖的传播过程。
The propagation of laser-generated wedge waves in a wedge was investigated using digital shearing speckle interferometry based on a Michelson interferometer. Different from traditional measuring methods, the laser beam provides illumination on the surface of the wedge to generate wedge waves, and another laser beam was used as the probe beam. The beam that reflected from the surface passed through an interferometric setup, a Michelson interferometer that allowed imaging the out-of-plane surface displacements. From a series of interferograms taken by a charge coupled device, the propagation of wedge waves along the wedge tip could be visualized.
DOI: 10.1049/el:19720271
发表时间: 1972-01-01
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