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- Holographic_interferometry abstract "Holographic interferometry (HI) is a technique which enables static and dynamic displacements of objects with optically rough surfaces to be measured to optical interferometric precision (i.e. to fractions of a wavelength of light). These measurements can be applied to stress, strain and vibration analysis, as well as to non-destructive testing. It can also be used to detect optical path length variations in transparent media, which enables, for example, fluid flow to be visualised and analysed. It can also be used to generate contours representing the form of the surface.Holography enables the light field scattered from an object to be recorded and replayed. If this recorded field is superimposed on the 'live field' scattered from the object, the two fields will be identical. If, however, a small deformation is applied to the object, the relative phases of the two light fields will alter, and it is possible to observe interference. This technique is known as live holographic interferometry.It is also possible to obtain fringes by making two recordings of the light field scattered from the object on the same recording medium. The reconstructed light fields may then interferere to give fringes which map out the displacement of the surface. This is known as 'frozen fringe' holography.The form of the fringe pattern is related to the changes in surface position or air compaction.Many methods of analysing such patterns automatically have been developed in recent years.".
- Holographic_interferometry wikiPageExternalLink interferometry.
- Holographic_interferometry wikiPageExternalLink interferometry.htm.
- Holographic_interferometry wikiPageExternalLink holography.pdf.
- Holographic_interferometry wikiPageExternalLink holo-inter.pdf.
- Holographic_interferometry wikiPageID "5219052".
- Holographic_interferometry wikiPageRevisionID "605500841".
- Holographic_interferometry hasPhotoCollection Holographic_interferometry.
- Holographic_interferometry subject Category:Holography.
- Holographic_interferometry subject Category:Interferometry.
- Holographic_interferometry comment "Holographic interferometry (HI) is a technique which enables static and dynamic displacements of objects with optically rough surfaces to be measured to optical interferometric precision (i.e. to fractions of a wavelength of light). These measurements can be applied to stress, strain and vibration analysis, as well as to non-destructive testing.".
- Holographic_interferometry label "Holographic interferometry".
- Holographic_interferometry sameAs m.0d8ffc.
- Holographic_interferometry sameAs Q5884113.
- Holographic_interferometry sameAs Q5884113.
- Holographic_interferometry wasDerivedFrom Holographic_interferometry?oldid=605500841.
- Holographic_interferometry isPrimaryTopicOf Holographic_interferometry.