Methods and Devices for Measuring Homogeneously Reflective Surfaces
AssigneeSiemens Aktiengesellschaft
InventorsWerner Gergen, Detlef Gerhard, Martin Weber
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Abstract
A focal point generated by a confocal sensor system is moved along a visual axis, orthogonal to the x, y-plane of an x, y, z-coordinate system, to a target z-coordinate of a point to be measured on a surface of an object. A light intensity of light reflected by the surface is dependent on a distance of the focal point along the z-axis to the point to be measured, and is detected and used in determining the actual z-coordinate of the point to be measured by an evaluation device.
Claims34
A method for measuring a homogeneously reflective surface of an object positioned in an orthogonal x-, y-, z-coordinate system, the method comprising:
- measuring, point-by-point, x-, y-, z-coordinates for a multiplicity of points on the surface of the object;
- focusing, via a sensor system, light onto a focal point at known x-, y-, z-coordinates;
- and
- measuring coordinates of a distance vector between a point to be measured and the focal point.
A device for measuring a homogeneously reflective surface of an object positioned in an orthogonal x-, y-, z-coordinate system, the device comprising:
- a sensor system configured to focus light onto a focal point at known x-, y-, z-coordinates;
- wherein the device is configured to measure, point-by-point, x-, y-, z-coordinates for a multiplicity of points on the surface of the object;
- and
- wherein the device is further configured to measure coordinates of a distance vector between a point to be measured and the focal point.
Dependencies are inferred from the claim text.