G - Physics – 01 – B
Patent
G - Physics
01
B
G01B 11/24 (2006.01)
Patent
CA 2081111
2081111 9116598 PCTABS00008 The present invention relates to a device for determination of the topography of a surface by measuring its normal vector point by point, as well as devices for determination of the curvature of the surface in these points, and for determination of the orientation, position, shape and size of holes in the surface. The said devices are based on the use of opto-electronic sensors (1; 1-2) for measurement of the spatial position of active light sources. The invention is furthermore based on an accessory tool (1; 4) consisting of a body (3a; 5), a minimum of two light sources (3a; 6-8) and three contact pins (3a; 10-12) or a plane contact surface. The contact pins or the contact surface positions the tool unambiguously onto a surface (1; 3). By knowledge of the positions of the light sources relative to the contact pins or contact surface of the tool, the orientation of this surface can be determined from the measured spatial coordinates of the light sources.
Lindqvist David
Pettersen Alf D.
Rotvold Oyvind
Metronor As
Perley-Robertson Hill & Mcdougall
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