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The development of a non-contact co-ordinate measurement machine
Bibliography: pages 113-117.
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| Other Authors: | |
| Format: | Thesis |
| Language: | English |
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School of Architecture, Planning and Geomatics
2016
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| _version_ | 1867613237381431296 |
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| access_status_str | Open Access |
| author | Craigie, Dirk Hamish |
| author2 | Rüther, Heinz |
| author_browse | Craigie, Dirk Hamish Rüther, Heinz |
| author_facet | Rüther, Heinz Craigie, Dirk Hamish |
| author_sort | Craigie, Dirk Hamish |
| collection | Thesis |
| description | Bibliography: pages 113-117. |
| format | Thesis |
| id | oai:open.uct.ac.za:11427/17479 |
| institution | University of Cape Town (South Africa) |
| language | eng |
| last_indexed | 2026-06-10T12:32:57.328Z |
| license_str | Not specified — see source repository |
| provenance_str_mv | Harvested via OAI-PMH from UCTD — University of Cape Town Open Access Repository |
| publishDate | 2016 |
| publishDateRange | 2016 |
| publishDateSort | 2016 |
| publisher | School of Architecture, Planning and Geomatics |
| publisherStr | School of Architecture, Planning and Geomatics |
| record_format | dspace |
| source_str | UCTD — University of Cape Town Open Access Repository |
| spelling | oai:open.uct.ac.za:11427/17479 The development of a non-contact co-ordinate measurement machine Craigie, Dirk Hamish Rüther, Heinz Surveying and Geodetic Engineering Mechanical Engineering Bibliography: pages 113-117. The Department of Surveying and Geodetic Engineering at the University of Cape Town, in conjunction with the Department of Mechanical Engineering at the University of Cape Town have developed a non-contact co-ordinate measurement machine in a project called MILIMAP. The project had the following objectives : 1. To determine unique surface co-ordinates for continuous, complex objects with submillimetre accuracy. 2. The representation of the co-ordinates was to be in a format that could be utilised by a computer numerically controlled (CNC) milling machine in a computer aided design/ computer aided manufacture (CADCAM) environment. 3. The device had to use a non-contact method for data capture. The MILIMAP project was undertaken because there is a demand for co-ordinate measurement machines in industry for the inspection of objects for quality control purposes. Conventional Co-ordinate Measurement Machines (CMMs) are expensive and use a contact probe to measure the object. The contact probe measurement technique is unsuitable for the measurement of non-rigid objects such as shoes and automobile seat padding. The MILIMAP system provides a noncontact measurement technique that can be applied to non-rigid as well as rigid objects. Additional applications in the archaeological field exist for the non-contact measurement of sensitive, historical artefacts. A digital photogrammetric system was developed to measure the position of a laser dot projected onto the surface of the measurement object. This measurement system satisfied the criteria of a non-contact measurement method required for the project. The system utilised three digital CCD cameras to capture images of the laser dot projected onto the object. Image processing software, developed from existing software within the Department of Surveying and Geodetic Engineering, was used to photogrammetrically determine the co-ordinates of the laser dot to sub-millimetre accuracy on the surface of the object. A mechanical device was designed and constructed by the Department of Mechanical Engineering in order to move the laser over the surface of the object, and to rotate the object. The entire surface of the object could be measured by the system using these operations. 2016-03-04T16:45:24Z 2016-03-04T16:45:24Z 1996 Master Thesis Masters MSc (Eng) http://hdl.handle.net/11427/17479 eng application/pdf School of Architecture, Planning and Geomatics Faculty of Engineering and the Built Environment University of Cape Town |
| spellingShingle | Surveying and Geodetic Engineering Mechanical Engineering Craigie, Dirk Hamish The development of a non-contact co-ordinate measurement machine |
| thesis_degree_str | Master's |
| title | The development of a non-contact co-ordinate measurement machine |
| title_full | The development of a non-contact co-ordinate measurement machine |
| title_fullStr | The development of a non-contact co-ordinate measurement machine |
| title_full_unstemmed | The development of a non-contact co-ordinate measurement machine |
| title_short | The development of a non-contact co-ordinate measurement machine |
| title_sort | development of a non contact co ordinate measurement machine |
| topic | Surveying and Geodetic Engineering Mechanical Engineering |
| url | http://hdl.handle.net/11427/17479 |
| work_keys_str_mv | AT craigiedirkhamish thedevelopmentofanoncontactcoordinatemeasurementmachine AT craigiedirkhamish developmentofanoncontactcoordinatemeasurementmachine |