Optical Methods for Dimensional Metrology in Production Engineering

Schwenke, H.; Neuschaefer-Rube, Ulrich; Pfeifer, Tilo; Kunzmann, H.

doi:10.1016/s0007-8506(07)61707-7

Cited by 258 publications

(125 citation statements)

References 36 publications

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“…So far, static and mobile laser scanning systems have been developed for change detection and deformation measurement, such as terrestrial laser scanning (TLS) [17][18][19]. Three measurement principles are mainly used in change detection and deformation measurement with TLS: triangulation, time-of-flight, structured light and photogrammetry [20].…”

Section: Overiew Of Tlsmentioning

confidence: 99%

Development of Laser Scanner for Full Cross-Sectional Deformation Monitoring of Underground Gateroads

Yang¹,

Zhang²,

Liu³

et al. 2017

Preprint

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Abstract:The deformation of underground gateroads tends to be asymmetric and complex. Traditional instrumentation fails to accurately and conveniently monitor the full cross-sectional deformation of underground gateroads. Here, a full cross-sectional laser scanner was developed together with a visualization software package. The developed system used polar coordinate measuring method and the full cross-sectional measurement was realized by 360° rotation of laser sensor driven by an electrical motor. Later on, the potential impact of gateroad wall flatness, roughness and geometrical profile as well as coal dust environment on the performance of the developed laser scanner were evaluated. The studies show that a high-level flatness is favorable in application of the developed full cross-sectional deformation monitoring system. For a smooth surface of gateroad, the sensor cannot receive reflected light when the incidence angle of laser beam is large, causing data loss. Conversely, the roughness surface shows its priority as the diffuse reflection light can be received by the sensor. With regards to the coal dust in measurement environment, the fine particles of floating coal dust in the air can lead to the loss of measurement data to some certain due to scattering of laser beam.

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Section: Overiew Of Tlsmentioning

confidence: 99%

Development of Laser Scanner for Full Cross-Sectional Deformation Monitoring of Underground Gateroads

Yang¹,

Zhang²,

Liu³

et al. 2017

Preprint

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“…Both measuring systems of both types are not fast enough for a production-related inspection for a forming technology like SBMF. In contrast, optical measuring technologies are established for fast inspections in production-related environments [20]. Secondly one of the characteristic advantages of sheet-bulk metal forming processes is the possibility of combining features of different scale and size in one part.…”

Section: Challengesmentioning

confidence: 99%

Metrological solutions for an adapted inspection of parts and tools of a sheet-bulk metal forming process

Matthias¹,

Loderer²,

Koch³

et al. 2015

Prod. Eng. Res. Devel.

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Processes of the new production technology sheet-bulk metal forming allow a fast and efficient nearnet-shape forming of highly complex parts. Thus the need of energy and raw material as well as the production cycle time can be reduced. In order to guarantee these advantages by avoiding scrap and moreover to ensure the parts' geometrical requirements, production-related metrological solutions for an adapted inspection of parts and tools of sheet-bulk forming processes have to be developed. To fulfill the demands of the differing measuring tasks two prototypical measurement solutions are under development: a multi-scale multi-sensor fringe projection system allows for holistic inspections in feature adapted resolutions, whereas a fiberscopic fringe projection system captures the forming tool partly between forming steps. For the purpose of evaluating the metrological solutions' capabilities of capturing the geometry of filigree structures a comparison of both systems is presented in this work. To guarantee realistic results, the performed measuring tasks have to be comparable to the areas of applications both systems were designed for. During the development of the measuring systems the emphasis was put on the inspection of small complex geometries. These are most challenging for fast and reliable optical inspection under productionrelated conditions. By considering measurements of calibrated standards on the one side as well as of measuring tasks resulting out of real sheet-bulk metal forming processes on the other side a realistic comparison is assured. Next to the measuring systems' performances also an approach for combining the measurement data of both metrological solutions is shown. By combining the advantages of both measuring systems, highly detailed information for further interpretations of the forming processes can be provided.

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“…In order to focus the study on the metrological model of optical sensors, the probe is approximated by a single target in this paper. It is possible also to expand the measurement area by repositioning the system or the measurand (Edward M Mikhail et al 2001, Heinrich Schwenke et al 2002. The claimed (Nikon Metrology NV 2016) volumetric accuracy is up to 100 µm within 6 meters depth of view, and single point accuracy is up to 67 µm.…”

Section: Introductionmentioning

confidence: 99%

Measurement strategy impact on dimensional inspection by portable camera-based measuring systems

Bai

Jamshidi

Kiraci

et al. 2017

Precision Engineering

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In dimensional inspection of large objects, portable measuring systems are greatly involved in a wealth of applications, such as automotive, motorsports and aerospace industries. Metris K-series Optical CMM (Coordinate Measuring Machine) system is one of the metrology solutions with relatively high accuracy and flexibility. This paper focuses on measurement strategy via repeatedly measuring a length using Metris K610 camera system. The paper proposes a link between measurement strategy and the system performance that can be achieved. The result of the statistical analysis are also given based on the uncertainty propagation of the CMM.

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Optical Methods for Dimensional Metrology in Production Engineering

Cited by 258 publications

References 36 publications

Development of Laser Scanner for Full Cross-Sectional Deformation Monitoring of Underground Gateroads

Development of Laser Scanner for Full Cross-Sectional Deformation Monitoring of Underground Gateroads

Metrological solutions for an adapted inspection of parts and tools of a sheet-bulk metal forming process

Measurement strategy impact on dimensional inspection by portable camera-based measuring systems

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