Method for measuring an object
AssigneeWerth Messtechnik GmbH
InventorsRalf Christoph, Ingomar Schmidt, Michael Hammer, Thomas Wiedenhöfer
Life of this patent
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Abstract
A method for determining structures or geometry of an object, or for measuring an object using a CT measuring system, and for correcting projection data for a CT reconstruction with the application of a CT detector, wherein the CT measuring system includes at least one radiation source, at least one radiation detector, and at least one axis of rotation.
Claims29
A method for determining structures, geometry, or both, of a workpiece by means of a computed-tomography measurement system, the method comprising providing an X-ray source, at least one X-ray detector, and a physical axis of rotation of a rotating support on which the workpiece is stationarily arranged, wherein:
- transmission images, originating from various rotation positions of the workpiece are combined, for which:
- the workpiece is rotated, with the aid of relative rotational and translational movements between the workpiece and the X-ray detector, about an axis of rotation different from the physical axis of rotation, such that at least a portion of the workpiece is constantly imaged at approximately the same position on the detector, and
- at least one of the workpiece, the X-ray, and X-ray detector occupy several positions relative to one another.
An arrangement for determining structures, geometry, or both, of a workpiece by means of a computed-tomography measuring system, comprising at least an X-ray source, an X-ray detector, and a physical axis of rotation of a rotating support on which the workpiece is stationarily arranged, wherein
- the workpiece is rotatable, with the aid of a combination of relative rotational and translational motions between the workpiece and the X-ray detector, about an axis of rotation different from the physical axis of rotation such that at least a portion of the workpiece is constantly imaged at approximately the same position on the detector.
Dependencies are inferred from the claim text.