Details
| Original language | English |
|---|---|
| Title of host publication | Optical Measurement Systems for Industrial Inspection X |
| Editors | Peter Lehmann, Armando Albertazzi Goncalves, Wolfgang Osten |
| Publisher | SPIE |
| Number of pages | 7 |
| ISBN (electronic) | 9781510611030 |
| Publication status | Published - 26 Jun 2017 |
| Event | Optical Measurement Systems for Industrial Inspection X 2017 - Munich, Germany Duration: 26 Jun 2017 → 29 Jun 2017 |
Publication series
| Name | Proceedings of SPIE - The International Society for Optical Engineering |
|---|---|
| Volume | 10329 |
| ISSN (Print) | 0277-786X |
| ISSN (electronic) | 1996-756X |
Abstract
In the manufacturing process of Tailored Forming components, the inline inspection of the joining zone directly after each single process step can yield advantages - such as early error detection and real-time process control. Since measuring times need to be synchronized with the production chain, there is no time to cool down the components in between two hot forming processes. On the one hand, the chosen measurement technique needs to be non-tactile due to the heat of the measurement object. On the other hand, the object's areal surface texture needs to be captured rapidly to realize a fast inline inspection. These requirements are only matched by optical 3d measurement systems. Additional challenges arise due to the high temperature of the Tailored Forming components: The ambient air is heated up and the air's temperature increase results in an inhomogeneous refractive index field surrounding the hot workpiece, effecting the light's path emitted by the illumination unit of the optical sensor. We present a simple measurement setup based on the laser light section method to visualize the measurement accuracy loss induced by the convectional heat flow from a hot cylindrical measurement object. To attain a direct validation of the measurement results, the measurements are performed with and with reduced influence of the inhomogeneous refractive index field induced by the hot object.
Keywords
- 3D measurement, laser light section, light deection, optics, refractive index field
ASJC Scopus subject areas
- Materials Science(all)
- Electronic, Optical and Magnetic Materials
- Physics and Astronomy(all)
- Condensed Matter Physics
- Computer Science(all)
- Computer Science Applications
- Mathematics(all)
- Applied Mathematics
- Engineering(all)
- Electrical and Electronic Engineering
Cite this
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- Harvard
- Apa
- Vancouver
- BibTeX
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Optical Measurement Systems for Industrial Inspection X. ed. / Peter Lehmann; Armando Albertazzi Goncalves; Wolfgang Osten. SPIE, 2017. 103292T (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 10329).
Research output: Chapter in book/report/conference proceeding › Conference contribution › Research › peer review
}
TY - GEN
T1 - Light section measurement to quantify the accuracy loss induced by laser light deflection in an inhomogeneous refractive index field
AU - Beermann, Rüdigger
AU - Quentin, Lorenz
AU - Pösch, Andreas
AU - Reithmeier, Eduard
AU - Kästner, Markus
N1 - Funding information: The results presented in this paper were obtained within the Collaborative Research Centre 1153 Process Chain for Manufacturing Hybrid High Performance Components by Tailored Forming in the subproject C5 Multiscale Geometry Inspection of Joining Zones. The authors would like to thank the German Research Foundation (DFG) for the financial and organisational support of this project.
PY - 2017/6/26
Y1 - 2017/6/26
N2 - In the manufacturing process of Tailored Forming components, the inline inspection of the joining zone directly after each single process step can yield advantages - such as early error detection and real-time process control. Since measuring times need to be synchronized with the production chain, there is no time to cool down the components in between two hot forming processes. On the one hand, the chosen measurement technique needs to be non-tactile due to the heat of the measurement object. On the other hand, the object's areal surface texture needs to be captured rapidly to realize a fast inline inspection. These requirements are only matched by optical 3d measurement systems. Additional challenges arise due to the high temperature of the Tailored Forming components: The ambient air is heated up and the air's temperature increase results in an inhomogeneous refractive index field surrounding the hot workpiece, effecting the light's path emitted by the illumination unit of the optical sensor. We present a simple measurement setup based on the laser light section method to visualize the measurement accuracy loss induced by the convectional heat flow from a hot cylindrical measurement object. To attain a direct validation of the measurement results, the measurements are performed with and with reduced influence of the inhomogeneous refractive index field induced by the hot object.
AB - In the manufacturing process of Tailored Forming components, the inline inspection of the joining zone directly after each single process step can yield advantages - such as early error detection and real-time process control. Since measuring times need to be synchronized with the production chain, there is no time to cool down the components in between two hot forming processes. On the one hand, the chosen measurement technique needs to be non-tactile due to the heat of the measurement object. On the other hand, the object's areal surface texture needs to be captured rapidly to realize a fast inline inspection. These requirements are only matched by optical 3d measurement systems. Additional challenges arise due to the high temperature of the Tailored Forming components: The ambient air is heated up and the air's temperature increase results in an inhomogeneous refractive index field surrounding the hot workpiece, effecting the light's path emitted by the illumination unit of the optical sensor. We present a simple measurement setup based on the laser light section method to visualize the measurement accuracy loss induced by the convectional heat flow from a hot cylindrical measurement object. To attain a direct validation of the measurement results, the measurements are performed with and with reduced influence of the inhomogeneous refractive index field induced by the hot object.
KW - 3D measurement
KW - laser light section
KW - light deection
KW - optics
KW - refractive index field
UR - http://www.scopus.com/inward/record.url?scp=85029147604&partnerID=8YFLogxK
U2 - 10.1117/12.2269724
DO - 10.1117/12.2269724
M3 - Conference contribution
AN - SCOPUS:85029147604
T3 - Proceedings of SPIE - The International Society for Optical Engineering
BT - Optical Measurement Systems for Industrial Inspection X
A2 - Lehmann, Peter
A2 - Goncalves, Armando Albertazzi
A2 - Osten, Wolfgang
PB - SPIE
T2 - Optical Measurement Systems for Industrial Inspection X 2017
Y2 - 26 June 2017 through 29 June 2017
ER -