Paper Title:

Defects Inspection of Steel Ball Based on Optical Fiber Sensing Technique

Periodical Applied Mechanics and Materials (Volumes 55 - 57)
Main Theme Recent Trends in Materials and Mechanical Engineering Materials, Mechatronics and Automation
Edited by Qi Luo
Pages 658-663
DOI 10.4028/www.scientific.net/AMM.55-57.658
Citation Guo Ping Li et al., 2011, Applied Mechanics and Materials, 55-57, 658
Online since May, 2011
Authors Guo Ping Li, Yong Kui Zhang, Chang Sheng Ai, Yu Zhen Ma
Keywords Defects Inspection, Fiber Optical Sensor, Steel Ball, Surface Quality
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Abstract

Surface quality of bearing ball is one of important factors to improve service performance. It is difficult to detect bearing ball surface defects with high precision and low cost by conventional methods. In this paper one new classification method based on optical fiber sensing technology was put forward from the longitudinal section angle. Inspection mechanism of Y-type and coaxial fiber sensor were analyzed, the mathematical models of the two fiber sensors were established and numerical simulations were realized by Matlab software. Influence of optical fiber parameters on light intensity modulation characteristic regulation was studied. Light intensity modulation characteristic experiments were done with specimens of different reflectivity and processing methods. The results show optical fiber sensing technique is an effective method to separate different surface of steel ball with extracting of two parameters displacement and surface reflectivity.