Method for Determining and Correcting Surface Data for Dimensional Measurement with Computed Tomography Sensor Technology

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This patent describes a method for measuring and correcting the geometric features of a workpiece using computed tomography (CT) sensors. It involves creating a surface model from surface points, simulating radiographic images based on this model, and comparing these simulated images with actual captured radiographic images to identify and correct surface points for more accurate measurements.

Use CasesContent extracted from patent full text and abstract with AI.

• Quality control in manufacturing processes to measure precise dimensions of components
• Medical device inspection where non-destructive, high-accuracy measurement is required
• Reverse engineering of complex parts by accurately capturing their surface geometries
• Inspection of additive-manufactured (3D printed) parts for dimensional accuracy
• Detection of defects or deformations in industrial components using CT imaging

BenefitsContent extracted from patent full text and abstract with AI.

• Improves measurement accuracy by correcting surface data based on actual radiographic images
• Enables non-destructive testing and dimensional measurement of complex objects
• Reduces measurement errors that might occur due to limitations in image capture or modeling
• Automates the correction process, saving time and reducing manual labor
• Can be integrated into automated manufacturing systems for real-time quality control

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Patent Abstract

Die Erfindung bezieht sich auf ein Verfahren zur Bestimmung von geometrischen Merkmalen an einem Werkstück mittels einer Computertomografiesensorik, wobei anhand eines aus Oberflächenpunkten bestehenden Oberflächenmodells simulierte Durchstrahlungsbilder für zumindest einige von aufgenommenen Durchstrahlungsbilder berechnet werden, und aus dem Vergleich der aufgenommenen Durchstrahlungsbilder zu den simulierten Durchstrahlungsbildern korrigierte Oberflächenpunkte ermittelt werden.