3D profilometry for turbine blade shape profiling
Non contact 3D measurement techniques such as those based on Fringe Projection Profilometry are increasingly popular as they offer a quick and accurate method to obtain the profile of critical components. This technique requires the projection of pre-designed sinusoidal fringe patterns on to the obj...
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| Format: | Final Year Project (FYP) |
| Language: | English |
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2011
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| Online Access: | http://hdl.handle.net/10356/45719 |
| _version_ | 1824453676192759808 |
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| author | Koh, Hoe Jyh. |
| author2 | Anand Krishna Asundi |
| author_facet | Anand Krishna Asundi Koh, Hoe Jyh. |
| author_sort | Koh, Hoe Jyh. |
| collection | NTU |
| description | Non contact 3D measurement techniques such as those based on Fringe Projection Profilometry are increasingly popular as they offer a quick and accurate method to obtain the profile of critical components. This technique requires the projection of pre-designed sinusoidal fringe patterns on to the object, where they will appear to be deformed due to the height variation on the object. The fringe patterns captured by a CCD camera are then analyzed with phase shifting method to retrieve the wrapped phase map. This is followed by temporal phase unwrapping to obtain the unwrapped phase map, which is then paired with calibration parameters to obtain the final 3D result. The 3D data of the inspected component are then compared with those of a standard sample to detect any irregularities if any. Fringe Projection Profilometry has been suggested as a feasible method for 3D optical non-destructive testing for industry applications. |
| first_indexed | 2025-02-19T03:10:12Z |
| format | Final Year Project (FYP) |
| id | ntu-10356/45719 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2025-02-19T03:10:12Z |
| publishDate | 2011 |
| record_format | dspace |
| spelling | ntu-10356/457192023-03-04T18:57:23Z 3D profilometry for turbine blade shape profiling Koh, Hoe Jyh. Anand Krishna Asundi School of Mechanical and Aerospace Engineering DRNTU::Engineering::Manufacturing Non contact 3D measurement techniques such as those based on Fringe Projection Profilometry are increasingly popular as they offer a quick and accurate method to obtain the profile of critical components. This technique requires the projection of pre-designed sinusoidal fringe patterns on to the object, where they will appear to be deformed due to the height variation on the object. The fringe patterns captured by a CCD camera are then analyzed with phase shifting method to retrieve the wrapped phase map. This is followed by temporal phase unwrapping to obtain the unwrapped phase map, which is then paired with calibration parameters to obtain the final 3D result. The 3D data of the inspected component are then compared with those of a standard sample to detect any irregularities if any. Fringe Projection Profilometry has been suggested as a feasible method for 3D optical non-destructive testing for industry applications. Bachelor of Engineering (Aerospace Engineering) 2011-06-16T07:03:31Z 2011-06-16T07:03:31Z 2011 2011 Final Year Project (FYP) http://hdl.handle.net/10356/45719 en Nanyang Technological University 84 p. application/pdf |
| spellingShingle | DRNTU::Engineering::Manufacturing Koh, Hoe Jyh. 3D profilometry for turbine blade shape profiling |
| title | 3D profilometry for turbine blade shape profiling |
| title_full | 3D profilometry for turbine blade shape profiling |
| title_fullStr | 3D profilometry for turbine blade shape profiling |
| title_full_unstemmed | 3D profilometry for turbine blade shape profiling |
| title_short | 3D profilometry for turbine blade shape profiling |
| title_sort | 3d profilometry for turbine blade shape profiling |
| topic | DRNTU::Engineering::Manufacturing |
| url | http://hdl.handle.net/10356/45719 |
| work_keys_str_mv | AT kohhoejyh 3dprofilometryforturbinebladeshapeprofiling |