Research on Visual Detection Using Magneto-optic Microscope

摘要：

As a branch of eddy current detection, magneto-optic microscope is getting wide interest since it is visual in defect detection. Compare to conventional single frequency magnet exciting, square pulse has abundant harmonious and can extract the defect information in different depth with a single test. So a magneto-optic microscope with square pulse exciting appears as an effective method. However, a powerful square pulse is difficult to get. The most common way is that a signal generator following with an amplifier, but the output is easily distorted. In this paper, a novel magnet exciting device is described, which is based on Power Factor Correction (PFC) technology and overcomes the above problem. An experiment has been designed and done. The image acquired with the microscope is processed with Matlab, and the method is evaluated by the result.

关键词： magnet excitation image processing visual detection magneto-optic microscope

作者: Libing Bai Shulin Tian Yuhua Cheng

作者单位: School of Automation Engineering University of Electronic Science and Technology of China Chengdu, China

会议类型: 国际会议

会议名称: 2010 International Conference on Measurement and Control Engineering(2010年IEEE测量与控制工程国际会议 ICMCE2010)

会议地点: 成都

会议语种:英文

页码: 299-302

在线出版日期: 2010-11-16（万方平台首次上网日期，不代表论文的发表时间）