G - Physics – 01 – D
Patent
G - Physics
01
D
96/57
G01D 9/42 (2006.01) G01M 10/00 (2006.01) G01P 13/00 (2006.01)
Patent
CA 1169690
ABSTRACT OF THE DISCLOSURE The disclosed method relates to a method for recording flow boundary layers in liquid media by photochemical means. According to the invention, surfaces which can be developed in a plane and to which a photographic film sheet is cemented are exposed under steady-state conditions to the flow of a liquid medium containing a dissolved agent reacting with the photo gelatin layer. The liquid medium may contain agents furnishing HS'-ions or agents capable of dissolving silver halide or reducing silver halide. If a photographic film sheet is used, the silver ions of which are reduced to silver, the flow exposure is performed with an agent having oxidizing and dissolving action. With the method disclosed, half-tone photograms of flow boundary layers in liquids can be recorded.
372136
Mages Gert
Opitz Heinrich
Urban Gerd
Aktiengesellschaft Siemens
Fetherstonhaugh & Co.
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