Internal inspection of semi-transparent objects by digital holographic micro-tomography
The combined use of digital holographic microscopy and computer tomography, here named digital holographic micro-tomography, is used to examine the interior of transparent channels. The proposed method is used to identify internal obstacles inside of transparent troughs having slightly different ref...
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2013
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| Acceso en línea: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00304026_v124_n18_p3314_MonroyRamirez http://hdl.handle.net/20.500.12110/paper_00304026_v124_n18_p3314_MonroyRamirez |
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paper:paper_00304026_v124_n18_p3314_MonroyRamirez |
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paper:paper_00304026_v124_n18_p3314_MonroyRamirez2023-06-08T14:56:21Z Internal inspection of semi-transparent objects by digital holographic micro-tomography Axial tomography Digital holographic micro-tomography Digital holography microscopy Non-destructive evaluation Digital holograms Digital holographic microscopy Digital holography microscopies Micro-objects Micro-tomography Non destructive evaluation Phase difference Semitransparent objects Computer generated holography Computerized tomography Microscopic examination Nondestructive examination Refractive index Tomography Holograms The combined use of digital holographic microscopy and computer tomography, here named digital holographic micro-tomography, is used to examine the interior of transparent channels. The proposed method is used to identify internal obstacles inside of transparent troughs having slightly different refractive index. The method is based in the acquisition of a set of digital holograms of the specimen whereas it is axially rotated from 0 to 180. The phase differences retrieved from the obtained holograms are the inputs to a computerised axial tomography procedure. The technique has been numerically modelled in order to find the optimal tomographic conditions and also to realise the minimum difference of refractive index the method could detect. The obtained results show the feasibility of the proposed method for the non-destructive evaluation of transparent micro-objects. © 2012 Elsevier GmbH. 2013 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00304026_v124_n18_p3314_MonroyRamirez http://hdl.handle.net/20.500.12110/paper_00304026_v124_n18_p3314_MonroyRamirez |
| institution |
Universidad de Buenos Aires |
| institution_str |
I-28 |
| repository_str |
R-134 |
| collection |
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) |
| topic |
Axial tomography Digital holographic micro-tomography Digital holography microscopy Non-destructive evaluation Digital holograms Digital holographic microscopy Digital holography microscopies Micro-objects Micro-tomography Non destructive evaluation Phase difference Semitransparent objects Computer generated holography Computerized tomography Microscopic examination Nondestructive examination Refractive index Tomography Holograms |
| spellingShingle |
Axial tomography Digital holographic micro-tomography Digital holography microscopy Non-destructive evaluation Digital holograms Digital holographic microscopy Digital holography microscopies Micro-objects Micro-tomography Non destructive evaluation Phase difference Semitransparent objects Computer generated holography Computerized tomography Microscopic examination Nondestructive examination Refractive index Tomography Holograms Internal inspection of semi-transparent objects by digital holographic micro-tomography |
| topic_facet |
Axial tomography Digital holographic micro-tomography Digital holography microscopy Non-destructive evaluation Digital holograms Digital holographic microscopy Digital holography microscopies Micro-objects Micro-tomography Non destructive evaluation Phase difference Semitransparent objects Computer generated holography Computerized tomography Microscopic examination Nondestructive examination Refractive index Tomography Holograms |
| description |
The combined use of digital holographic microscopy and computer tomography, here named digital holographic micro-tomography, is used to examine the interior of transparent channels. The proposed method is used to identify internal obstacles inside of transparent troughs having slightly different refractive index. The method is based in the acquisition of a set of digital holograms of the specimen whereas it is axially rotated from 0 to 180. The phase differences retrieved from the obtained holograms are the inputs to a computerised axial tomography procedure. The technique has been numerically modelled in order to find the optimal tomographic conditions and also to realise the minimum difference of refractive index the method could detect. The obtained results show the feasibility of the proposed method for the non-destructive evaluation of transparent micro-objects. © 2012 Elsevier GmbH. |
| title |
Internal inspection of semi-transparent objects by digital holographic micro-tomography |
| title_short |
Internal inspection of semi-transparent objects by digital holographic micro-tomography |
| title_full |
Internal inspection of semi-transparent objects by digital holographic micro-tomography |
| title_fullStr |
Internal inspection of semi-transparent objects by digital holographic micro-tomography |
| title_full_unstemmed |
Internal inspection of semi-transparent objects by digital holographic micro-tomography |
| title_sort |
internal inspection of semi-transparent objects by digital holographic micro-tomography |
| publishDate |
2013 |
| url |
https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00304026_v124_n18_p3314_MonroyRamirez http://hdl.handle.net/20.500.12110/paper_00304026_v124_n18_p3314_MonroyRamirez |
| _version_ |
1768545867167432704 |