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Noncontact 3D measurement method on hole-structure precision inspection
- Source :
- Optoelectronics Letters. 17:231-235
- Publication Year :
- 2021
- Publisher :
- Springer Science and Business Media LLC, 2021.
-
Abstract
- In order to implement 3D point cloud scanning of small hole structure, which could not be contacted or damaged, we propose a noncontact 3D measuring method. The system contains a laser triangulation displacement sensor, a Michelson interferometer system and a coordinate measuring machine, with the advantages of non-invasive scanning, fast measurement speed and high precision. Focusing on reconstructing 3D point cloud data, random sample consensus is used to separate surface data and hole data respectively from the raw dataset. Least square optimization determines the function of the cylinder, as well as hole diameter and inclined angle between the hole and the surface. In the experiment scanning a round hole, the estimated result has diameter error and angle error within 30 µm and 0.2°, respectively. Results manifest the effectiveness and feasibility of this system and express practicality in manufacturing industry.
- Subjects :
- Surface (mathematics)
Materials science
business.industry
Point cloud
Michelson interferometer
02 engineering and technology
Condensed Matter Physics
Laser
Coordinate-measuring machine
01 natural sciences
Atomic and Molecular Physics, and Optics
Displacement (vector)
Electronic, Optical and Magnetic Materials
law.invention
010309 optics
020210 optoelectronics & photonics
Optics
law
0103 physical sciences
0202 electrical engineering, electronic engineering, information engineering
Cylinder
Electrical and Electronic Engineering
Photonics
business
Subjects
Details
- ISSN :
- 19935013 and 16731905
- Volume :
- 17
- Database :
- OpenAIRE
- Journal :
- Optoelectronics Letters
- Accession number :
- edsair.doi...........be970c37c20234ac3b3505df6fa909fb