Testing of samples

Details Testing of samples Testing of samples

2006-04-24

2009-11-03

Caputo, Lisa M (Department: 2855)

Measuring and testing

Specimen stress or strain, or testing by stress or strain...

By loading of specimen

Reexamination Certificate

active

07610815

ABSTRACT:
A method of monitoring the surface of a sample under test is provided and the method comprises the steps of: illuminating the surface with light (20) polarised in a first direction; viewing light reflected from the surface through a polarising filter (27) arranged at 90° to the first direction, wherein the surface of the sample under test is provided with a marked area where diffuse reflection of the incident polarised light will occur in order to improve the contrast between the marked area and the surface of the sample under text.

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European Search Report mailed Nov. 22, 2006 in European Patent Application No. 06076084.0-2209, 5 pages.

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