Details
| Original language | English |
|---|---|
| Title of host publication | Optical Measurement Systems for Industrial Inspection XII |
| Editors | Peter Lehmann, Wolfgang Osten, Armando Albertazzi Goncalves |
| Publisher | SPIE |
| ISBN (electronic) | 9781510643987 |
| Publication status | Published - 20 Jun 2021 |
| Event | Optical Measurement Systems for Industrial Inspection XII 2021 - Virtual, Online, Germany Duration: 21 Jun 2021 → 25 Jun 2021 |
Publication series
| Name | Proceedings of SPIE - The International Society for Optical Engineering |
|---|---|
| Volume | 11782 |
| ISSN (Print) | 0277-786X |
| ISSN (electronic) | 1996-756X |
Abstract
Optical triangulation systems based on fringe projection profilometry have emerged in recent years as a complement to traditional tactile devices. Due to the good scalability of the measurement approach, a highly compact novel sensor for maintenance and inspection in narrow spaces is realized by applying optical fiber bundles. Especially in the field of high-resolution and rapid maintenance in industrial environments, numerous applications arise. The endoscopic three dimensional reconstuction of gearing geometries is of particular technical relevance for detecting and quantifying damage or wear. The measurement performance depends to a considerable extent on the technical surface to be inspected. Polished surfaces are particularly problematic due to specular reflections, but can still be partially reconstructed by using HDR imaging. However, if multireflections occur in such a way that the optical path of each corresponding camera pixel can no longer be reconstructed unambiguously, a measurement is no longer feasible. In this study, the effects of surface roughness and texture, sensor arrangement, and triangulation angle on measurement error are systematically assessed to identify potential application limits and provide guidance for sensor operation.
Keywords
- Endoscopy, Fringe projection, Gear inspections, Multireflection, Production metrology, Specular reflection
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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- BibTeX
- RIS
Optical Measurement Systems for Industrial Inspection XII. ed. / Peter Lehmann; Wolfgang Osten; Armando Albertazzi Goncalves. SPIE, 2021. 117821D (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 11782).
Research output: Chapter in book/report/conference proceeding › Conference contribution › Research › peer review
}
TY - GEN
T1 - Impact of multireflections on measurement accuracy in the endoscopic 3D reconstruction of gearing geometries
AU - Hinz, Lennart
AU - Kästner, Markus
AU - Reithmeier, Eduard
N1 - Funding Information: The authors would like to thank the German Research Foundation (DFG) for funding the project B6 ”Endoscopic geometry inspection” within the Collaborative Research Center (CRC) / TR 73.
PY - 2021/6/20
Y1 - 2021/6/20
N2 - Optical triangulation systems based on fringe projection profilometry have emerged in recent years as a complement to traditional tactile devices. Due to the good scalability of the measurement approach, a highly compact novel sensor for maintenance and inspection in narrow spaces is realized by applying optical fiber bundles. Especially in the field of high-resolution and rapid maintenance in industrial environments, numerous applications arise. The endoscopic three dimensional reconstuction of gearing geometries is of particular technical relevance for detecting and quantifying damage or wear. The measurement performance depends to a considerable extent on the technical surface to be inspected. Polished surfaces are particularly problematic due to specular reflections, but can still be partially reconstructed by using HDR imaging. However, if multireflections occur in such a way that the optical path of each corresponding camera pixel can no longer be reconstructed unambiguously, a measurement is no longer feasible. In this study, the effects of surface roughness and texture, sensor arrangement, and triangulation angle on measurement error are systematically assessed to identify potential application limits and provide guidance for sensor operation.
AB - Optical triangulation systems based on fringe projection profilometry have emerged in recent years as a complement to traditional tactile devices. Due to the good scalability of the measurement approach, a highly compact novel sensor for maintenance and inspection in narrow spaces is realized by applying optical fiber bundles. Especially in the field of high-resolution and rapid maintenance in industrial environments, numerous applications arise. The endoscopic three dimensional reconstuction of gearing geometries is of particular technical relevance for detecting and quantifying damage or wear. The measurement performance depends to a considerable extent on the technical surface to be inspected. Polished surfaces are particularly problematic due to specular reflections, but can still be partially reconstructed by using HDR imaging. However, if multireflections occur in such a way that the optical path of each corresponding camera pixel can no longer be reconstructed unambiguously, a measurement is no longer feasible. In this study, the effects of surface roughness and texture, sensor arrangement, and triangulation angle on measurement error are systematically assessed to identify potential application limits and provide guidance for sensor operation.
KW - Endoscopy
KW - Fringe projection
KW - Gear inspections
KW - Multireflection
KW - Production metrology
KW - Specular reflection
UR - http://www.scopus.com/inward/record.url?scp=85109419099&partnerID=8YFLogxK
U2 - 10.1117/12.2592599
DO - 10.1117/12.2592599
M3 - Conference contribution
AN - SCOPUS:85109419099
T3 - Proceedings of SPIE - The International Society for Optical Engineering
BT - Optical Measurement Systems for Industrial Inspection XII
A2 - Lehmann, Peter
A2 - Osten, Wolfgang
A2 - Goncalves, Armando Albertazzi
PB - SPIE
T2 - Optical Measurement Systems for Industrial Inspection XII 2021
Y2 - 21 June 2021 through 25 June 2021
ER -