利用第二种间断点对球团矿还原曲线进行缺陷分析  

Defect analysis for reducibility curve of pellet iron ore by discontinuity point of the second kind

作　　者：王振新 应海松[2] 陈颖娜[2] 杨东彪[2] 

机构地区：[1]中国检验认证集团宁波有限公司,浙江宁波315012 [2]北仑出入境检验检疫局,浙江宁波315800

出　　处：《大众科技》2016年第5期10-11,19,共3页Popular Science & Technology

摘　　要：利用第二种间断点对设备故障进行检测已经在机电领域有一定的应用,当机电设施存在一定的故障,其产生的信号也存在突变。文章借助MATLAB软件,用小波变换滤波技术,将球团矿还原检测产生的还原曲线的噪声进行分离,将分离后的高频信号进行分析,可以了解在还原试验过程中,是否有突发因素造成曲线异常等缺陷,达到准确完成球团矿还原性试验的要求。It has been applied for equipment failure in electromechanical area by use of discontinuity point of the second kind. The signals exist sudden change because of equipment failure. In this paper, the noisy of signal is filtered in reducibility curve produced during test of reducibility of pellet by filtering technology of wavelet and Matlab, though high - frequency part of signal is analyzed, the unusual curve due to equipment failure is found during test of reducibility, so as to meet demand of exact determination for pellet reducibility.

关 键 词：小波变换 间断点 球团矿 还原曲线 缺陷分析 

分 类 号：TP27[自动化与计算机技术—检测技术与自动化装置]