Exploring Accuracy and Uncertainty in Computed Tomography

There is a range of terminology for CT system accuracy and uncertainty that should be understood when evaluating 3D scanning systems, this blog post illustrates some of those terms, such as Precision and Accuracy, Tolerance, Uncertainty of Measurement, Resolution, Error, and Suitability.
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The Key are the Feet

Evolution, and thereby the origin of us human beings, still raises many questions for science. Prof. Dr. John Nyakatura, who holds the chair of 'Comparative Zoology' at the Humboldt University in Berlin, and his young team of junior scientists are focusing on the functional morphology of vertebrates and trying to track down the evolution of early primates. "A key to understanding their evolution seems to be the feet," John Nyakatura explains.
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A Look into The Hidden

Electromobility confronts the automotive industry with many new challenges. New components sometimes require new test methods to ensure functionality and safety. Research and development are running at full blast and partnerships find solutions that clearly push the current boundaries of what is possible. In a joint project, the Fraunhofer Institute for Manufacturing Technology and Advanced Materials and Yxlon International have succeeded for the first time in taking a look into the inside of cast rotors.
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CT for TEI's Technologically Advanced Casting Process

Tooling & Equipment International (TEI) is a global leader in design, engineering and manufacturing for prototype, pre-production and mass production equipment for the casting industry. TEI's core business is manufacturing of prototypes and therefore invested in new, advanced technologies including 3D printing for sand molds, simulation technology, low-pressure casting, CT and X-ray inspection.
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Limitations of 2D X-Ray Inspection

X-ray inspection for electronics has been around for decades, but that does not mean it has stayed the same. As the design and manufacturing for electronics shifts to smaller and more compact and dense products, X-ray technology has shifted as well. 
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CT Handbook

Computed tomography (CT) is the most effective technology for non-destructive testing (NDT).The dataset obtained from a CT scan allows users to examine material samples, observe defects, perform measurements and identify materials with different densities. Engineers, builders, researchers and scientists can therefore discover features that could not previously be examined without destroying the test object.
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CT - Efficient Support for Development Project 'AGENT-3D-CastAutoGen'

In an extensive development project from the automotive industry, funded by the BMBF in AGENT-3D, it once again became clear that x-ray computed tomography is much more than a technology for non-destructive material testing. Moreover, CT supports in research & development as well as in the elaboration of production processes and helps to save time and money.
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Why Variable Detector Position Matters

In this video Dirk Steiner compares two examples of scans at 550mm vs 1100mm detector distance using a micro-focus tube to illustrate how scan speed can be increased, and he shows the impact on image quality and dimensional deviation. 
 
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DR Handbook

Digital radiography is a form of two-dimensional x-ray imaging in which traditional light-sensitive and radiation-sensitive x-ray film and analog hardware have been replaced with a digital image capture device, usually consisting of a flat-panel detector, and computer-based equipment.
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X-Ray and CT Automation Advances Make Aerospace Inspection Easier

Standards and regulations rule the Aerospace industry. Inspections and reviews are crucial to passenger and flight safety, but compliance with these standards can become time consuming and expensive. Advances in technology put more pressure on the inspection process.
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The Future Is Now

You might be surprised to know cast metal products can be found in 90 percent of manufactured goods and equipment throughout the world. From critical components for aircraft and automobiles to home appliances and surgical equipment, cast metal products play an important role in today’s economy especially in the United States. The U.S. is the world’s largest supplier, shipping $18 billion worth of products annually (according to the Office of Industrial Technologies report, Metal Casting – Industry of the Future).
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Beyond MPE

Thanks to most recent developments, computed tomography (CT) is now an affordable and efficient
technology for non-destructive testing of workpieces made of a vast variety of materials. While digital radiography provides two-dimensional fluoroscopic images, computed tomography typically rotates the object between the X-ray tube and the flat-panel detector 360° and captures several hundred to well over a thousand X-ray images from various angles.
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