| Holographic Deformation Measurement by a Spatial Carrier Fringe Technique |
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| 引用本文： | Quan Chenggen T. R. Judge P. J. Bryanston-Cross (Department of Precision Instrumentation). Holographic Deformation Measurement by a Spatial Carrier Fringe Technique[J]. 哈尔滨工业大学学报, 1990, 0(3) |
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| 作者姓名： | Quan Chenggen T. R. Judge P. J. Bryanston-Cross (Department of Precision Instrumentation) |
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| 摘 要： | A carrier fringe techrtique for measuring surface deformation is described and verified by experiments. In contrast to conventional holography and fringe analysis, this holographic system is based on fibre optics and automatic spatial carrier fringe pattem analysis techniques Single-mode optic fibres are used to transfer both the object and reference beams. Carrier fringes are generated by simply translating the object beam between two exposures The Fourier transform is applied to the carrier fringe pattern to convert it to the spatial frequency domain, where it is processed The results are given for a centrally loaded disk, including a 3-D perspective plot of the out of plane deformation field, phase map, grey level map and contour map.
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Holographic Deformation Measurement by a Spatial Carrier Fringe Technique |
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| Quan Chenggen T. R. Judge P. J. Bryanston-Cross. Holographic Deformation Measurement by a Spatial Carrier Fringe Technique[J]. Journal of Harbin Institute of Technology, 1990, 0(3) |
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| Authors: | Quan Chenggen T. R. Judge P. J. Bryanston-Cross |
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| Affiliation: | Department of Precision Instrumentation |
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| Abstract: | A carrier fringe techrtique for measuring surface deformation is described and verified by experiments. In contrast to conventional holography and fringe analysis, this holographic system is based on fibre optics and automatic spatial carrier fringe pattem analysis techniques Single-mode optic fibres are used to transfer both the object and reference beams. Carrier fringes are generated by simply translating the object beam between two exposures The Fourier transform is applied to the carrier fringe pattern to convert it to the spatial frequency domain, where it is processed The results are given for a centrally loaded disk, including a 3-D perspective plot of the out of plane deformation field, phase map, grey level map and contour map. |
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| Keywords: | Holography holographic interferometry double exposure spatial carrier fringe Fourier transform fibre optics |
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