Stress measuring method and system

Details Stress measuring method and system Stress measuring method and system

2006-08-22

2009-08-11

Caputo, Lisa M (Department: 2855)

Measuring and testing

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

By loading of specimen

C250S311000

Reexamination Certificate

active

07571653

ABSTRACT:
An energy beam is applied to an evaluation region of a sample, a phase distribution image of the energy beam transmitted to the sample in the evaluation region is obtained, and the obtained phase distribution image is analyzed, whereby a stress distribution in the evaluation region is measured. This measuring method measures a stress, based on a phase distribution image, whereby the stress can be measured irrespectively of a crystalline structure of an evaluation sample. A phase distribution image is used, whereby two-dimensional distribution images of the stress, density and refractive index can be obtained.

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