Data processing: measuring – calibrating – or testing – Measurement system – Orientation or position
Reexamination Certificate
2006-10-03
2006-10-03
Nghiem, Michael (Department: 2863)
Data processing: measuring, calibrating, or testing
Measurement system
Orientation or position
Reexamination Certificate
active
07117115
ABSTRACT:
A method for three-dimensional measurement of coordinates of a set of N predetermined points of the surface of a mechanical part to be measured, relatively to a predetermined reference system, and the direction cosines of the theoretical normals thereto at the theoretical points corresponding to the N predetermined points are known, and including a preparatory phase, in which the coordinate points, corresponding to the N predetermined points of a first mechanical part taken as a standard part, are measured; an initialization phase, in which displacement measurements (along the normals are read on the N points of the standard part; a measurement phase, in which N linear displacement measurements performed on the N points of the part to be measured corresponding to the N points of the standard part, are read; and a computation phase, in which the coordinates of the N points of the part to be measured are computed.
REFERENCES:
patent: 4298874 (1981-11-01), Kuipers
patent: 1 596 156 (2005-11-01), None
English translation of Jean-Francois Peyrucat, “Faster Dimensional Control”, Dimensional Measurements, SOLUTIONS, XP-000773067, pp. 1-6, previously cited May 9, 2005.
Beignon Dominique Maurice Gerard
Choquet Pascal Desire Jacques
Gandubert Joel
Levy Jean-Jacques
Nghiem Michael
Snecma Moteurs
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