Noncontact laser sensor for pipe inner-wall inspection using circular optical cutting method

Bao Hua Zhuang; Wenwei Zhang; Dong Yin Cui

doi:10.1117/12.263327

20 January 1997 Noncontact laser sensor for pipe inner-wall inspection using circular optical cutting method

Bao Hua Zhuang, Wenwei Zhang, Dong Yin Cui

Proceedings Volume 2909, Three-Dimensional Imaging and Laser-Based Systems for Metrology and Inspection II; (1997) https://doi.org/10.1117/12.263327
Event: Photonics East '96, 1996, Boston, MA, United States

Abstract

This paper describes a non-contact laser sensor for pipe inner wall inspection using the circular optical cutting method. The sensor which consists of laser diode light source, an optical ring pattern generator and a CCD camera principally. The optical ring pattern generator forms the light from the laser diode as a circular light to project on the pipe inner wall. Then the reflected or the scattered light by the pipe inner circumference surface is imaged on the CCD camera. The fundamental performance analysis and simulation according to the theory of the light reflecting- scattering shows that it is possible to select the propose parameters. Using this sensor mounted on an automated moving systems on trial, the pipe interior diameter between 80mm to 160mm can be inspected within accuracy of 0.2mm.

Citation Download Citation

Bao Hua Zhuang, Wenwei Zhang, and Dong Yin Cui "Noncontact laser sensor for pipe inner-wall inspection using circular optical cutting method", Proc. SPIE 2909, Three-Dimensional Imaging and Laser-Based Systems for Metrology and Inspection II, (20 January 1997); https://doi.org/10.1117/12.263327

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