Method and apparatus for non-contact measurement of relative dis

Details Method and apparatus for non-contact measurement of relative dis Method and apparatus for non-contact measurement of relative dis

1995-10-31

1997-04-29

Gonzalez, Frank

Optics: measuring and testing

By configuration comparison

With two images of single article compared

356396, 356373, G01B 1100

Patent

active

056254571

ABSTRACT:
An apparatus for performing non-contact measurement of relative displacement includes a microscope having one objective lens and two fields of view in which two points of measurement on a test piece can be located separately, a pair of cameras for taking images obtained with the microscope, and an apparatus for measuring the relative displacement of the images of the two points of measurement obtained by the cameras.

REFERENCES:
patent: 3068743 (1962-12-01), Dyson
patent: 3560097 (1971-02-01), Gavrilkin
patent: 3652167 (1972-03-01), Smith
patent: 3724959 (1973-04-01), Koulicovitch

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