20 January 1997 Noncontact laser sensor for pipe inner-wall inspection using circular optical cutting method
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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.
© (1997) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Bao Hua Zhuang, Bao Hua Zhuang, Wenwei Zhang, Wenwei Zhang, Dong Yin Cui, 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); doi: 10.1117/12.263327; https://doi.org/10.1117/12.263327
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