Method and device for determining the topography of a material surface
AssigneeFibro System AB
InventorBernt Bostrom
Life of this patent
Estimating the term…
Abstract
A method and a device for determining a topography under load of the surface of a material, wherein a test piece (40) of the material intended to be determined is subjected to a compression with a determined load between a first and a second clamping surface (7, 27), after which, in a compressed state, at least one representation is made of surface portions of the material that are in contact with at least one of said clamping surfaces (7, 27), and that the representation is evaluated. The compression is controlled in respect of its speed for obtaining said predetermined load, and said at least one representation is made at a chosen point in time or chosen points in time during this process.
Claims23
Method for determining a topography under load of the surface of a material, wherein a test piece (40, 40′) of the material intended to be determined is subjected to a compression with a determined load between a first and a second clamping surface (7, 27), after which, in a compressed state, registration is carried out by at least one representation being made of surface portions of the material that are in contact with at least one of said clamping surfaces (7, 27), and that the representation is evaluated, characterized in
- that the compression is controlled in respect of its speed for obtaining said predetermined load and for simulating the true conditions a test piece is exposed to in a printing process, and
- that the registration is synchronized such that said at least one representation is made at a chosen point in time or chosen points in time during a period when compression of the test piece (40, 40′) prevails.
Device (1) for determining a topography under load of the surface of a material, including means for subjecting a test piece of the material intended for determining to a compression with a predetermined load between a first and a second clamping surface (7, 27) and means for, in a compressed state, carry out registration by making at least one representation of surface portions of the material which are in contact with at least one of said clamping surfaces (7, 27), characterized by
- means (16, 18) for controlling the compression in respect of its speed in order to obtain said predetermined load and for simulating the true conditions a test piece is exposed to in a printing process, and
- means (16, 18, 19) for synchronizing registration in order to make said at least one representation at a chosen point in time or at chosen points in time during a period when compression of the test piece (40, 40′) prevails.
Dependencies are inferred from the claim text.