Analysis, characterization and accuracy improvement of optical coordinate measurement systems for car body assembly quality control

2006 ◽  
Vol 30 (11-12) ◽  
pp. 1174-1190 ◽  
Author(s):  
J. J. Aguilar ◽  
M. Sanz ◽  
D. Guillomía ◽  
M. Lope ◽  
I. Bueno
Keyword(s):  
Quality Control ◽  
Assembly Quality ◽  
Accuracy Improvement ◽  
Coordinate Measurement ◽  
Measurement Systems ◽  
Car Body

scholarly journals Calibration and uncertainty estimation of non-contact coordinate measurement systems based on Kriging models

2019 ◽  
Vol 57 ◽  
pp. 16-29 ◽  
Author(s):  
Lan Fei ◽  
Jean-Yves Dantan ◽  
Cyrille Baudouin ◽  
Shichang Du
Keyword(s):  
Uncertainty Estimation ◽  
Coordinate Measurement ◽  
Measurement Systems

Accuracy Analysis of Stewart Parallel Manipulator Based on Uniform Experiment Design

2012 ◽  
Vol 500 ◽  
pp. 715-720
Author(s):  
Jian Guang Li ◽  
Jian Ding ◽  
Huai Jing Jing ◽  
Ying Xue Yao
Keyword(s):  
Quality Control ◽  
Parallel Manipulator ◽  
Experiment Design ◽  
Regression Equations ◽  
Accuracy Analysis ◽  
Assembly Quality ◽  
Planning Approach ◽  
Control Procedures ◽  
Area Planning

Accuracy of the Stewart parallel manipulator is utmost important in assembly quality control procedures, and it's also difficult to demonstrate the inner relations quantitatively between errors of pose and of actuators. A novel methodology is proposed in this paper. Firstly the experiment area planning approach is proposed according to the pose and strut symmetries of the manipulator, and the uniform experiment design is conducted to investigate indexes of accuracy sensitivity. The regression equations are established to analyze the significance of various factors according to experiment results.

scholarly journals Mixed reality-based user interface for quality control inspection of car body surfaces

2019 ◽  
Vol 53 ◽  
pp. 75-92 ◽  
Author(s):  
Adolfo Muñoz ◽  
Xavier Mahiques ◽  
J. Ernesto Solanes ◽  
Ana Martí ◽  
Luis Gracia ◽  
...  
Keyword(s):  
Quality Control ◽  
User Interface ◽  
Mixed Reality ◽  
Car Body

A Contrast of Generation Sinusoidal Fringe Pattern Method Based on Phase Measurement Profilometry

2009 ◽  
Vol 419-420 ◽  
pp. 145-148
Author(s):  
Wan Tao He ◽  
Wen Chao Ren ◽  
Xiang Qian Che ◽  
Shao Sheng Wang
Keyword(s):  
Quality Control ◽  
Reverse Engineering ◽  
Measurement Method ◽  
Fringe Pattern ◽  
Phase Measurement ◽  
Structured Light ◽  
Shape Measurement ◽  
3D Measurement ◽  
Measurement Systems ◽  
Experiment Verification

Optical 3D measurement systems are used in a lot of applications, for instance for quality control and reverse engineering. A structured light active optical 3D measurement method are very often based on projection sinusoidal fringe pattern on the object. The key element of such a shape measurement method is how to generate sinusoidal fringe pattern. The purpose of this paper is to review the method of generation sinusoidal fringe pattern and contrast the two chief method from the specific viewpoint based phase measurement profilmetry. Experiment verification of the performance of each generation method is provided and finally some suggestions on generation method for phase measurement profilometry applications is offered.

scholarly journals A Novel Measurement Standard for Surface Roughness on Involute Gears

2021 ◽  
Vol 11 (21) ◽  
pp. 10303
Author(s):  
Felix Steinmeyer ◽  
Dorothee Hüser ◽  
Rudolf Meeß ◽  
Martin Stein
Keyword(s):  
Surface Roughness ◽  
Physical Measurement ◽  
Roughness Measurement ◽  
Measurement Standard ◽  
Coordinate Measurement ◽  
Measurement Systems ◽  
Planar Surfaces ◽  
Involute Gears ◽  
Material Measure ◽  
Roughness Measurements

Although manufacturers of coordinate measurement systems and gear measurement systems already provide instruments that enable an end-of-line-monitoring of the roughness properties of gears, the roughness measurement on gear flanks still lacks traceability with respect to the standardised SI-units. There is still a gap between well standardised roughness measurements on planar surfaces and gear measurements on involutes. This gap is bridged by a novel physical measurement standard (PMS), also referred to as material measure, for roughness measurements on involute gears that has been developed at the Physikalisch-Technische Bundesanstalt (PTB). The necessary transformations between the systems of roughness and gear measurements have been implemented. The measurement standard itself represents calibrated roughness values for the parameters Ra, Rz, Rq, Rk, Rpk and Rvk and Mr1 and Mr2. Furthermore, the PMS can be measured both with classic profilometers as well as gear measurement systems with integrated roughness probes.

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