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A Laser Triangulation-Based 3D Measurement System for Inner Surface of Deep Holes

[+] Author Affiliations
Zhu Ye, Wang Lianpo, Yonggang Gu, Zhai Chao

University of Science and Technology of China, Hefei, China

Baoyang Jiang, Jun Ni

University of Michigan, Ann Arbor, MI

Paper No. MSEC2018-6453, pp. V004T03A070; 7 pages
  • ASME 2018 13th International Manufacturing Science and Engineering Conference
  • Volume 4: Processes
  • College Station, Texas, USA, June 18–22, 2018
  • Conference Sponsors: Manufacturing Engineering Division
  • ISBN: 978-0-7918-5138-8
  • Copyright © 2018 by ASME


Basing on the laser-triangulation principle, a deep hole inner surface inspection system is developed in this research. Compared with existing inner surface measurement systems, this research takes assembly errors and refraction distortion into consideration and proposes a flexible laser plane calibration technique based on binocular vision that is easy to operate. The measurement system calibrated by proposed method performs well in the field test in which the maximum absolute error of the measured ring gauge diameter is 3μm. Experiment indicates that this system is accurate and suitable for inner surface measurement. Point cloud registration may be applied in the future to extend the system’s applicability.

Copyright © 2018 by ASME



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