Details
| Original language | English |
|---|---|
| Title of host publication | 11th IMEKO TC14 International Symposium on Measurement and Quality Control |
| Subtitle of host publication | (ISMQC 2013) |
| Pages | 102-105 |
| Number of pages | 4 |
| Publication status | Published - 2013 |
| Event | 11th IMEKO TC14 International Symposium on Measurement and Quality Control, ISMQC 2013 - Cracow and Kielce, Poland Duration: 11 Sept 2013 → 13 Sept 2013 |
Abstract
Fringe projection offers a great variety of application fields in geometry measurement of free form elements. From large measuring areas down to geometry elements with sizes in the millimeter range it can be used for fast areal measurements. With advanced deviation analyses methods errors in fabrication lines can be found promptly after their appearance which can minimize rejections. However, there are still fields that cannot be covered by classical fringe projection. One of these fields is the measurement of filigree form elements on narrow or internal carrier geometries. To overcome this drawback, a fibrescopic micro fringe projection sensor was developed [1]. The new device is capable of resolutions of less than 15 μm with uncertainties of about 35 μm in a workspace of 3x3x3 mm3. The measuring time of the system is not sufficient for in-situ measurements, meaning measuring times of <1 sec. The following work will introduce a new approach of applying a new one image measuring method to the fibrescopic system, based on inverse fringe projection [2]. The design of the fibrescopic fringe projection system with a laser lightsource, a digital micro-mirror device (DMD), fibre in- and uut- Coupling optics and fibre optical image bundles (FOIB) creates high demands on the on the pattern generation and the involved ray tracing simulations to adapt an exact inverse image of a given CAD model. Approaches of the simulations in the context of the complex beam path, together the drawbacks of the limited resolutions of the FOIBs shall be discussed.
Keywords
- Endoscopy, Fibrescopy, Inverse Fringe Projection, Sheet Bulk Metal Forming
ASJC Scopus subject areas
- Engineering(all)
- Safety, Risk, Reliability and Quality
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11th IMEKO TC14 International Symposium on Measurement and Quality Control: (ISMQC 2013). 2013. p. 102-105.
Research output: Chapter in book/report/conference proceeding › Conference contribution › Research › peer review
}
TY - GEN
T1 - One image fibrescopic fringe projection with inverse approach
AU - Ohrt, Christoph
AU - Pösch, Andreas
AU - Kästner, Markus
AU - Reithmeier, Eduard
PY - 2013
Y1 - 2013
N2 - Fringe projection offers a great variety of application fields in geometry measurement of free form elements. From large measuring areas down to geometry elements with sizes in the millimeter range it can be used for fast areal measurements. With advanced deviation analyses methods errors in fabrication lines can be found promptly after their appearance which can minimize rejections. However, there are still fields that cannot be covered by classical fringe projection. One of these fields is the measurement of filigree form elements on narrow or internal carrier geometries. To overcome this drawback, a fibrescopic micro fringe projection sensor was developed [1]. The new device is capable of resolutions of less than 15 μm with uncertainties of about 35 μm in a workspace of 3x3x3 mm3. The measuring time of the system is not sufficient for in-situ measurements, meaning measuring times of <1 sec. The following work will introduce a new approach of applying a new one image measuring method to the fibrescopic system, based on inverse fringe projection [2]. The design of the fibrescopic fringe projection system with a laser lightsource, a digital micro-mirror device (DMD), fibre in- and uut- Coupling optics and fibre optical image bundles (FOIB) creates high demands on the on the pattern generation and the involved ray tracing simulations to adapt an exact inverse image of a given CAD model. Approaches of the simulations in the context of the complex beam path, together the drawbacks of the limited resolutions of the FOIBs shall be discussed.
AB - Fringe projection offers a great variety of application fields in geometry measurement of free form elements. From large measuring areas down to geometry elements with sizes in the millimeter range it can be used for fast areal measurements. With advanced deviation analyses methods errors in fabrication lines can be found promptly after their appearance which can minimize rejections. However, there are still fields that cannot be covered by classical fringe projection. One of these fields is the measurement of filigree form elements on narrow or internal carrier geometries. To overcome this drawback, a fibrescopic micro fringe projection sensor was developed [1]. The new device is capable of resolutions of less than 15 μm with uncertainties of about 35 μm in a workspace of 3x3x3 mm3. The measuring time of the system is not sufficient for in-situ measurements, meaning measuring times of <1 sec. The following work will introduce a new approach of applying a new one image measuring method to the fibrescopic system, based on inverse fringe projection [2]. The design of the fibrescopic fringe projection system with a laser lightsource, a digital micro-mirror device (DMD), fibre in- and uut- Coupling optics and fibre optical image bundles (FOIB) creates high demands on the on the pattern generation and the involved ray tracing simulations to adapt an exact inverse image of a given CAD model. Approaches of the simulations in the context of the complex beam path, together the drawbacks of the limited resolutions of the FOIBs shall be discussed.
KW - Endoscopy
KW - Fibrescopy
KW - Inverse Fringe Projection
KW - Sheet Bulk Metal Forming
UR - http://www.scopus.com/inward/record.url?scp=84907338605&partnerID=8YFLogxK
M3 - Conference contribution
AN - SCOPUS:84907338605
SN - 978-1-63266-817-2
SP - 102
EP - 105
BT - 11th IMEKO TC14 International Symposium on Measurement and Quality Control
T2 - 11th IMEKO TC14 International Symposium on Measurement and Quality Control, ISMQC 2013
Y2 - 11 September 2013 through 13 September 2013
ER -