On the development of a low-cost rigid borescopic fringe projection system

Publikation: Beitrag in Buch/Bericht/Sammelwerk/KonferenzbandAufsatz in KonferenzbandForschungPeer-Review

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OriginalspracheEnglisch
Titel des SammelwerksPhotonics, Devices, and Systems VI
Herausgeber/-innenDagmar Senderakova, Pavel Tomanek, Pavel Tomanek, Petr Pata, Petr Pata
Herausgeber (Verlag)SPIE
Seitenumfang6
ISBN (elektronisch)9781628415667
PublikationsstatusVeröffentlicht - 6 Jan. 2015
VeranstaltungPhotonics, Devices, and Systems VI - Prague, Tschechische Republik
Dauer: 27 Aug. 201429 Aug. 2014

Publikationsreihe

NameProceedings of SPIE - The International Society for Optical Engineering
Band9450
ISSN (Print)0277-786X
ISSN (elektronisch)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.

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On the development of a low-cost rigid borescopic fringe projection system. / Schlobohm, Jochen; Pösch, Andreas; Kästner, Markus et al.
Photonics, Devices, and Systems VI. Hrsg. / Dagmar Senderakova; Pavel Tomanek; Pavel Tomanek; Petr Pata; Petr Pata. SPIE, 2015. 945009 (Proceedings of SPIE - The International Society for Optical Engineering; Band 9450).

Publikation: Beitrag in Buch/Bericht/Sammelwerk/KonferenzbandAufsatz in KonferenzbandForschungPeer-Review

Schlobohm, J, Pösch, A, Kästner, M & Reithmeier, E 2015, On the development of a low-cost rigid borescopic fringe projection system. in D Senderakova, P Tomanek, P Tomanek, P Pata & P Pata (Hrsg.), Photonics, Devices, and Systems VI., 945009, Proceedings of SPIE - The International Society for Optical Engineering, Bd. 9450, SPIE, Photonics, Devices, and Systems VI, Prague, Tschechische Republik, 27 Aug. 2014. https://doi.org/10.1117/12.2067310, https://doi.org/10.15488/1773
Schlobohm, J., Pösch, A., Kästner, M., & Reithmeier, E. (2015). On the development of a low-cost rigid borescopic fringe projection system. In D. Senderakova, P. Tomanek, P. Tomanek, P. Pata, & P. Pata (Hrsg.), Photonics, Devices, and Systems VI Artikel 945009 (Proceedings of SPIE - The International Society for Optical Engineering; Band 9450). SPIE. https://doi.org/10.1117/12.2067310, https://doi.org/10.15488/1773
Schlobohm J, Pösch A, Kästner M, Reithmeier E. On the development of a low-cost rigid borescopic fringe projection system. in Senderakova D, Tomanek P, Tomanek P, Pata P, Pata P, Hrsg., Photonics, Devices, and Systems VI. SPIE. 2015. 945009. (Proceedings of SPIE - The International Society for Optical Engineering). doi: 10.1117/12.2067310, 10.15488/1773
Schlobohm, Jochen ; Pösch, Andreas ; Kästner, Markus et al. / On the development of a low-cost rigid borescopic fringe projection system. Photonics, Devices, and Systems VI. Hrsg. / Dagmar Senderakova ; Pavel Tomanek ; Pavel Tomanek ; Petr Pata ; Petr Pata. SPIE, 2015. (Proceedings of SPIE - The International Society for Optical Engineering).
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