For Libraries For Publication Open Access Downloads About Us Contact Us
Paper Titles
Experimental Performance Study of Industrial-Grade Coordinate Measuring Machines Using a Calibrated Production Workpiece
p.118
Analysis of a Big Joint Implant
p.125
High Stability of Temperature Control Using Vacuum Insulated Wall for Gauge Block Measurement
p.133
First Utilization of Energy Transfer in Structured Light Projection - Infrared 3D Scanner
p.141
High Precision Algorithms for 3D Objects Shadow Inspection in Partially Coherent Light
p.151
Measuring Parallelism for Two Thin Parallel Beams Based on Autocollimation Principle
p.157
Realization of Non-Mechanical Lateral and Axial Confocal Microscopic Laser Scanning with a Phase only Liquid Crystal Spatial Light Modulator
p.167
An Approach to On-Line Uncertainty Evaluation in Non-Contact Temperature Measurements
p.173
Design and Testing of Wind Energy Harvester Based on PVDF
p.185

High Precision Algorithms for 3D Objects Shadow Inspection in Partially Coherent Light

Article Preview

Abstract:

As applied to the dimensional inspection the peculiarities of 3D objects image formation with clear shadow projection under their illumination by quasi-monochromatic partially coherent light based on the constructive theory of 3D objects formation using a model of equivalent diaphragms are studied. Two threshold algorithms for determining the position of 3D objects geometric boundaries under their inspection by optical shadow method according to their thickness as well as the light source angular size and the projection system aperture diaphragm are developed. These algorithms are based on the application of true (calculated) threshold or standard one using the corrective component to threshold. It has been shown theoretically and experimentally that their use can significantly improve the measurement accuracy of extended objects. The obtained results under the development of measuring systems for industrial inspection of ceramic details allowed us to reduce the measurement error.

You might also be interested in these eBooks
Measurement Technology and Intelligent Instruments XI View Preview

Info:

Periodical:

Key Engineering Materials (Volume 613)

Pages:

151-156

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.613.151

Citation:

Cite this paper

Online since:

May 2014

Authors:

Yuri V. Chuguy*, Elena S. Senchenko

Keywords:

3D Diffraction, Dimensional Inspection, Partially Coherent Light, Shadow Method

Export:

RIS, BibTeX

Price:

Permissions CCC:

Request Permissions

Permissions PLS:

Request Permissions

Сopyright:

© 2014 Trans Tech Publications Ltd. All Rights Reserved

Share:

Citation:

* - Corresponding Author

References

[1] J.G. Webster, The Measurement, Instrumentation, and Sensors Handbook, CRC Press LLC, Boca Raton, (1999).

Google Scholar

[2] J.W. Goodman, Introduction to Fourier Optics, McGraw-Hill, New York, (1968).

Google Scholar

[3] Yu.V. Chugui, B.E. Krivenkov, Fraunhofer diffraction by bodies of constant thickness", JOSA, A 6, (1989) 617-626.

Google Scholar

[4] Yu.V. Chugui, Optical dimensional metrology for 3D objects of constant thickness, Measurement, 30, (2001) 19-31.

DOI: 10.1016/s0263-2241(00)00055-5

Google Scholar

[5] J.W. Goodman, Speckle Phenomena in Optics: Theory and Applications, Roberts & Company, Publishers, Englewood, CO, (2006).

Google Scholar

[6] Yu.V. Chugui, N.A. Yakovenko, M.D. Yaluplin, Metrology for Fresnel measuring method, Measurement Science and Technology, 17, (2006) 592-595.

DOI: 10.1088/0957-0233/17/3/s22

Google Scholar

[7] E.S. Senchenko, Yu.V. Chugui, Shadow Inspection of 3D Objects in Partially Coherent Light, Measurement Science Review, 11, 4, (2011) 104-107.

DOI: 10.2478/v10048-011-0018-x

Google Scholar

© 2025 Trans Tech Publications Ltd. All rights are reserved, including those for text and data mining, AI training, and similar technologies. For open access content, terms of the Creative Commons licensing CC-BY are applied.
Scientific.Net is a registered trademark of Trans Tech Publications Ltd.