Radiation imagery chemistry: process – composition – or product th – Post imaging processing – Treating with processing composition prior to imaging and...
Patent
1981-02-20
1982-11-30
Marcus, Michael S.
Radiation imagery chemistry: process, composition, or product th
Post imaging processing
Treating with processing composition prior to imaging and...
23230R, 23230A, 430423, 346 11, 346107R, G01D 942, G01D 2100, G01N 3300
Patent
active
043616445
ABSTRACT:
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.
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patent: 4250249 (1981-02-01), Montag
Main-Smith, A.R.C. Technical Rep. R & M No. 2755, (1950), Chemical Solids as Diffusible Coating Films for Visual Indications of Boundary-layer Transition in Air and Water.
Mages Gert
Opitz Heinrich
Urban Gerd
Marcus Michael S.
Siemens Aktiengesellschaft
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