Error and limit determination for dimensional measurements of thin-walled structures with industrial computed tomography
Due to the high-accuracy requirement of dimensional measurements for thin-walled structures of additive manufacturing products, the grayscale distribution of the industrial CT image and the location of the structural boundaries in the image space were derived. In addition, the validity of the half-h...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | zho |
| Published: |
Journal of Materials Engineering
2020-08-01
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| Series: | Cailiao gongcheng |
| Subjects: | |
| Online Access: | http://jme.biam.ac.cn/CN/Y2020/V48/I8/169 |
| _version_ | 1797967195596128256 |
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| author | CHEN Zi-mu HU Zheng-wei WANG Qian-ni SHI Yi-wei |
| author_facet | CHEN Zi-mu HU Zheng-wei WANG Qian-ni SHI Yi-wei |
| author_sort | CHEN Zi-mu |
| collection | DOAJ |
| description | Due to the high-accuracy requirement of dimensional measurements for thin-walled structures of additive manufacturing products, the grayscale distribution of the industrial CT image and the location of the structural boundaries in the image space were derived. In addition, the validity of the half-height-width method and the maximum gradient method was compared and analyzed, and the limit of the dimensional measurement based on CT imaging was calculated. The thin-walled structures with different thicknesses were calibrated, and measured by industrial CT scanning and imaging experiment. The results show that the half-height-width method generates a smaller error compared with the maximum gradient method, when the thickness of the thin-walled structures is larger than the measurement limit of the CT system. Finally, the measurement limit can be obtained by numerical simulations based on the edge spread function with experimental measurements. |
| first_indexed | 2024-04-11T02:26:17Z |
| format | Article |
| id | doaj.art-cff11cb9347b4e45b1d77fef52d2f0db |
| institution | Directory Open Access Journal |
| issn | 1001-4381 1001-4381 |
| language | zho |
| last_indexed | 2024-04-11T02:26:17Z |
| publishDate | 2020-08-01 |
| publisher | Journal of Materials Engineering |
| record_format | Article |
| series | Cailiao gongcheng |
| spelling | doaj.art-cff11cb9347b4e45b1d77fef52d2f0db2023-01-02T22:37:15ZzhoJournal of Materials EngineeringCailiao gongcheng1001-43811001-43812020-08-0148816917610.11868/j.issn.1001-4381.2019.00028620200818Error and limit determination for dimensional measurements of thin-walled structures with industrial computed tomographyCHEN Zi-mu0HU Zheng-wei1WANG Qian-ni2SHI Yi-wei3AECC Beijing Institute of Aeronautical Materials, Beijing 100095, China;AECC Beijing Institute of Aeronautical Materials, Beijing 100095, China;AECC Beijing Institute of Aeronautical Materials, Beijing 100095, China;AECC Beijing Institute of Aeronautical Materials, Beijing 100095, China;Due to the high-accuracy requirement of dimensional measurements for thin-walled structures of additive manufacturing products, the grayscale distribution of the industrial CT image and the location of the structural boundaries in the image space were derived. In addition, the validity of the half-height-width method and the maximum gradient method was compared and analyzed, and the limit of the dimensional measurement based on CT imaging was calculated. The thin-walled structures with different thicknesses were calibrated, and measured by industrial CT scanning and imaging experiment. The results show that the half-height-width method generates a smaller error compared with the maximum gradient method, when the thickness of the thin-walled structures is larger than the measurement limit of the CT system. Finally, the measurement limit can be obtained by numerical simulations based on the edge spread function with experimental measurements.http://jme.biam.ac.cn/CN/Y2020/V48/I8/169thin-walled structureindustrial computed tomographydimensional measurementmea-surement limit |
| spellingShingle | CHEN Zi-mu HU Zheng-wei WANG Qian-ni SHI Yi-wei Error and limit determination for dimensional measurements of thin-walled structures with industrial computed tomography Cailiao gongcheng thin-walled structure industrial computed tomography dimensional measurement mea-surement limit |
| title | Error and limit determination for dimensional measurements of thin-walled structures with industrial computed tomography |
| title_full | Error and limit determination for dimensional measurements of thin-walled structures with industrial computed tomography |
| title_fullStr | Error and limit determination for dimensional measurements of thin-walled structures with industrial computed tomography |
| title_full_unstemmed | Error and limit determination for dimensional measurements of thin-walled structures with industrial computed tomography |
| title_short | Error and limit determination for dimensional measurements of thin-walled structures with industrial computed tomography |
| title_sort | error and limit determination for dimensional measurements of thin walled structures with industrial computed tomography |
| topic | thin-walled structure industrial computed tomography dimensional measurement mea-surement limit |
| url | http://jme.biam.ac.cn/CN/Y2020/V48/I8/169 |
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