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non-destructive testing

Thread starter -
Start date Nov 9, 2000

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Nov 9, 2000

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HI,
I am working on a project that uses digital holography for non-destructive testing.
Because you need to record fringes on CCD ,they have to be large,thus making the angle between ref and object beam almost zero. Does anybody has experience on this matter?Any help is welcome.
Tanx
thomasvandamme@hotmail.com