Details
| Original language | English |
|---|---|
| Title of host publication | Photonics, Devices, and Systems VI |
| Editors | Dagmar Senderakova, Pavel Tomanek, Pavel Tomanek, Petr Pata, Petr Pata |
| Publisher | SPIE |
| Number of pages | 6 |
| ISBN (electronic) | 9781628415667 |
| Publication status | Published - 6 Jan 2015 |
| Event | Photonics, Devices, and Systems VI - Prague, Czech Republic Duration: 27 Aug 2014 → 29 Aug 2014 |
Publication series
| Name | Proceedings of SPIE - The International Society for Optical Engineering |
|---|---|
| Volume | 9450 |
| ISSN (Print) | 0277-786X |
| ISSN (electronic) | 1996-756X |
Abstract
Examining the geometry of complex industrial free form objects, like a blade integrated disk (blisk) of a jet engine compressor, is currently subject to research. High measurement precision and speed are required and the complex geometry poses a challenge for state of the art measurement systems. In order to fulfill typical inspection requirements, the fringe projection methodology was adapted in this work to accomplish the task of fast and precise geometry examination. A low cost borescopic fringe projection system for 3D shape measurement based on consumer electronics combined with state of the art optics was developed. Nevertheless, it is able to provide measurement uncertainties comparable to professional systems. We are using a portable consumer LED-beamer, which we have modified to fit the optics of the borescope and a Raspberry Pi single-board computer with a 5 megapixel camera to capture the fringe patterns. With this setup and fringe projection algorithms, which have been developed by this institute over the last years, we were able to perform high quality measurements while still being suitable for a compact inspection system. Measurements with high point densities are possible even in narrow areas of parts with complex geometries like blisks. The measuring system and first measurement results will be presented at the conference.
Keywords
- Blisk, Borescope, Endoscope, Fringe projection, Measurement, Optical measurement, Projector
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
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Photonics, Devices, and Systems VI. ed. / Dagmar Senderakova; Pavel Tomanek; Pavel Tomanek; Petr Pata; Petr Pata. SPIE, 2015. 945009 (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 9450).
Research output: Chapter in book/report/conference proceeding › Conference contribution › Research › peer review
}
TY - GEN
T1 - On the development of a low-cost rigid borescopic fringe projection system
AU - Schlobohm, Jochen
AU - Pösch, Andreas
AU - Kästner, Markus
AU - Reithmeier, Eduard
PY - 2015/1/6
Y1 - 2015/1/6
N2 - Examining the geometry of complex industrial free form objects, like a blade integrated disk (blisk) of a jet engine compressor, is currently subject to research. High measurement precision and speed are required and the complex geometry poses a challenge for state of the art measurement systems. In order to fulfill typical inspection requirements, the fringe projection methodology was adapted in this work to accomplish the task of fast and precise geometry examination. A low cost borescopic fringe projection system for 3D shape measurement based on consumer electronics combined with state of the art optics was developed. Nevertheless, it is able to provide measurement uncertainties comparable to professional systems. We are using a portable consumer LED-beamer, which we have modified to fit the optics of the borescope and a Raspberry Pi single-board computer with a 5 megapixel camera to capture the fringe patterns. With this setup and fringe projection algorithms, which have been developed by this institute over the last years, we were able to perform high quality measurements while still being suitable for a compact inspection system. Measurements with high point densities are possible even in narrow areas of parts with complex geometries like blisks. The measuring system and first measurement results will be presented at the conference.
AB - Examining the geometry of complex industrial free form objects, like a blade integrated disk (blisk) of a jet engine compressor, is currently subject to research. High measurement precision and speed are required and the complex geometry poses a challenge for state of the art measurement systems. In order to fulfill typical inspection requirements, the fringe projection methodology was adapted in this work to accomplish the task of fast and precise geometry examination. A low cost borescopic fringe projection system for 3D shape measurement based on consumer electronics combined with state of the art optics was developed. Nevertheless, it is able to provide measurement uncertainties comparable to professional systems. We are using a portable consumer LED-beamer, which we have modified to fit the optics of the borescope and a Raspberry Pi single-board computer with a 5 megapixel camera to capture the fringe patterns. With this setup and fringe projection algorithms, which have been developed by this institute over the last years, we were able to perform high quality measurements while still being suitable for a compact inspection system. Measurements with high point densities are possible even in narrow areas of parts with complex geometries like blisks. The measuring system and first measurement results will be presented at the conference.
KW - Blisk
KW - Borescope
KW - Endoscope
KW - Fringe projection
KW - Measurement
KW - Optical measurement
KW - Projector
UR - http://www.scopus.com/inward/record.url?scp=84922984931&partnerID=8YFLogxK
U2 - 10.1117/12.2067310
DO - 10.1117/12.2067310
M3 - Conference contribution
AN - SCOPUS:84922984931
T3 - Proceedings of SPIE - The International Society for Optical Engineering
BT - Photonics, Devices, and Systems VI
A2 - Senderakova, Dagmar
A2 - Tomanek, Pavel
A2 - Tomanek, Pavel
A2 - Pata, Petr
A2 - Pata, Petr
PB - SPIE
T2 - Photonics, Devices, and Systems VI
Y2 - 27 August 2014 through 29 August 2014
ER -