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Proceedings Paper

Noncontact optical sensor for inside-diameter measurements
Author(s): Xiangjun Wang; Xinyu Kou
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Paper Abstract

This paper presents a new sensor method for achieving automatic non-contact fast inspections and measurements of the inside diameters or sizes of cylindrical parts with serial kinds of material in industrial environments. The method is based on optic surface reflection principle. The 2D geometric optic gouge is constructed in inside of cylinder in terms of laser diode and line scanning charge coupled device. The method has the advantage of simple and fast operation, long live for use, easy data process and error correction. The paper outlines in detail the principle of the 2D geometric optic sensor, the relation among reflection angle, position of light point on LCCD and measuring range. Some algorithms are introduced in the paper too. FInally, the actual experiment results are given.

Paper Details

Date Published: 10 August 1998
PDF: 5 pages
Proc. SPIE 3558, Automated Optical Inspection for Industry: Theory, Technology, and Applications II, (10 August 1998); doi: 10.1117/12.318403
Show Author Affiliations
Xiangjun Wang, Tianjin Univ. (China)
Xinyu Kou, Tianjin Univ. (China)

Published in SPIE Proceedings Vol. 3558:
Automated Optical Inspection for Industry: Theory, Technology, and Applications II
Shenghua Ye, Editor(s)

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