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- Title
Scientists Have Developed Improved Design for Image Quality Indicator.
- Abstract
The traditional way to test the quality of a weld is to X-ray it and analyse the film for flaws and other imperfections. Recently, this process has been computerized and digitized, allowing the image to be projected on a video screen instead of on film. This permits real-time examination of the weld and improves productivity because the object can be rotated during inspection. Up to now, this procedure has been inhibited by the lack of an indicator that evaluates image quality as the specimen and its associated image quality indicator are rotated. National Institute of Standards and Technology scientists have now developed a design for an indicator that has spherical symmetry and provides the same image quality information independent of rotation.
- Subjects
WELDING; QUALITY; REAL-time control; AUTOMATION; INDUSTRIAL engineering; NATIONAL Institute of Standards &; Technology (U.S.)
- Publication
Quality & Reliability Engineering International, 1991, Vol 7, Issue 1, p49
- ISSN
0748-8017
- Publication type
Article