减小穿过线圈式涡流探伤不可探区长度的研究

J4 ›› 2011, Vol. 24 ›› Issue (1): 106-108.

减小穿过线圈式涡流探伤不可探区长度的研究

赵洪贤, 李庆卓, 孙继华, 韩晓华, 董欣, 孟令华, 黄绪萍, 王贝, 马健

山东省科学院激光研究所，山东无损检测工程技术中心，山东济宁 272107

出版日期:2011-02-20 发布日期:2011-02-20

Research on steel tubes blind ends reduction in eddy current fault detection through type coil round

ZHAO Hong-Xian, LI Qing-Zhuo, SUN Ji-Hua, HAN Xiao-Hua, DONG Xin, MENG Ling-Hua, HUANG Xu-Ping, WANG Bei, MA Jian

Laser Institute, Shandong Academy of Sciences,Shandong Center of Nondestructive Testing Engineering Technology,Jining 272107, China

Online:2011-02-20 Published:2011-02-20

摘要/Abstract

摘要：

针对穿过线圈式涡流探伤头、尾信号大的特点，通过对前置放大器的增益进行自动控制和改善带通滤波器的滤波性能，减小钢管头部不可探区的长度。将辊道电机驱动变频器频率调在45Hz上，对Ф168 mm、厚6 mm的钢管进行探伤实验，可清晰地检测出距钢管头部103 mm处的凹坑。

关键词: 不可探区, 穿过线圈式, 涡流探伤

Abstract:

We reduce the blind ends of steel tubes in eddy current fault detection by the automatic control over the gain of a preamplifier and performance improvement of a bandpass filter for the characteristic of strong signal generated at the end of a steel tube. We can detect the steel pit at the 103 mm away from one end of a steel tube of diameter 168 mm and thickness 6 mm.

Key words: blind end, through type coil round, eddy current fault detection

中图分类号:

TG115

赵洪贤, 李庆卓, 孙继华, 韩晓华, 董欣, 孟令华, 黄绪萍, 王贝, 马健. 减小穿过线圈式涡流探伤不可探区长度的研究[J]. J4, 2011, 24(1): 106-108.

ZHAO Hong-Xian, LI Qing-Zhuo, SUN Ji-Hua, HAN Xiao-Hua, DONG Xin, MENG Ling-Hua, HUANG Xu-Ping, WANG Bei, MA Jian. Research on steel tubes blind ends reduction in eddy current fault detection through type coil round[J]. J4, 2011, 24(1): 106-108.

[1]	孟令华，刘品潇，马健，董欣，赵洪贤. 涡流探伤中PLC监控软件的设计[J]. J4, 2012, 25(2): 92-95.
[2]	董欣, 赵洪贤, 韩晓华. 人机界面在涡流探伤控制系统中的应用[J]. J4, 2011, 24(3): 90-93.
[3]	赵洪贤, 韩晓华, 孙继华, 李庆卓, 董欣, 孟令华, 黄绪萍, 杜石岩, 刘真梅, 翟瑞占, 黄伟, 朱仁德, 马健, 王贝. NEM700全自动大直径钢管的点式探头涡流探伤[J]. J4, 2010, 23(4): 92-93.
[4]	赵洪贤, 韩晓华, 李庆卓, 孙继华, 董欣, 孟令华, 黄绪萍, 杜石岩, 刘真梅, 翟瑞占, 黄伟, 朱仁德, 马健, 王贝. 西门子S7-300PL在NEM230涡流探伤设备中的应用[J]. J4, 2010, 23(2): 89-91.