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Abstract
We present a study on the effects of sub-surface scattering quantified by means of uni- and bidirectional distance measurements on miniature step gauges, which were manufactured in four different polymer materials (POM, PEEK, PPS and ABS), and calibrated using a coordinate measuring machine. Measurement were performed using an own developed structured light 3D scanner, which provides detailed knowledge of the scan process and allows access to raw data and unbiased evaluation of the sub-surface effects. Analysis was carried out with the CMM measurement strategy adapted to optical data in the software GOM Inspect. Results show bidirectional deviations (optical measurement compared to CMM) in the order of 100m to 800m (material dependent) and consistently higher than corresponding unidirectional measurements, indicating a systematic error induced by the light-material interaction. We hypothesize that part of these effects can be accounted for, enabling optical measurements of a wider range of materials.
Original language | English |
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Title of host publication | Proceedings of the 18th International Conference of the European Society for Precision Engineering and Nanotechnology |
Editors | D. Billington, R. K. Leach, D. Phillips, O. Riemer, E. Savio |
Publisher | The European Society for Precision Engineering and Nanotechnology |
Publication date | 2018 |
Pages | 449-450 |
ISBN (Electronic) | 9780995775121 |
Publication status | Published - 2018 |
Event | 18th International Conference of the european Society for Precision Engineering and Nanotechnology (euspen 18) - Venice, Italy Duration: 4 Jun 2018 → 8 Jun 2018 |
Conference
Conference | 18th International Conference of the european Society for Precision Engineering and Nanotechnology (euspen 18) |
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Country/Territory | Italy |
City | Venice |
Period | 04/06/2018 → 08/06/2018 |
Keywords
- Optical metrology
- 3D scanning
- Dimensional Accuracy
- Polymers
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MADE Digital: Driving growth and productivity in manufacturing through digitalization
Frisvad, J. R. (Project Participant), Gregersen, S. K. S. (Project Participant), Doest, M. E. B. (PhD Student), Jeppesen, N. (PhD Student), Kulahci, M. (Project Participant), Khan, A. R. (Project Participant), Christensen, A. N. (Supervisor), Dahl, A. B. (Main Supervisor) & Eiríksson, E. R. (Project Participant)
01/01/2017 → 31/12/2020
Project: Research