模式识别技术在扬声器故障诊断中的应用  

Application of Pattern Recognition Technique to Fault Diagnosis for Loudspeaker

作　　者：卢学军[1] 储标[1] 许增朴[1] 殷伟[1] 

机构地区：[1]天津科技大学机械工程学院,天津300222

出　　处：《天津科技大学学报》2007年第1期72-74,82,共4页Journal of Tianjin University of Science & Technology

摘　　要：针对目前扬声器检测普遍采用人耳监听的现状,提出一种基于模式识别技术进行扬声器故障检测的方法．首先,对87个类型已知的各类扬声器进行数据采集和数据处理,并计算不同类型扬声器的类标准频谱图;然后,测试其他已知类型的扬声器,进行数据处理,计算其频谱与类标准频谱图之间的欧氏距离、相似度和二维相关系数三种指标,并根据其对扬声器进行识别．试验结果表明,利用频谱图及多指标的模式识别技术能够提高故障诊断精度．Loudspeakers faults are now detected by ears in the factories,so a fault diagnosis method based on pattern recognition technique was presented. Firstly,the responses of some classified speakers were acquired and processed in order to get the standard frequency spectrum of different types of loudspeakers. Secondly,three kinds of indexes of Euchdean distance,similarity and two-dimensional correlation coefficient were used to recognize the types of the rest known types of loudspeakers by comparing their frequency spectrum figures of response with the standard ones. Results show that the new method can improve the rate of correct recognition.

关 键 词：扬声器 模式识别 故障诊断 频谱图 

分 类 号：TB52[理学—物理]