自动超声检测系统中的电机干扰研究  

Motor Interference Investigation in the Automatic Ultrasonic Testing System

作　　者：罗婕[1] 路宏年[1] 

机构地区：[1]北京航空航天大学机械工程及自动化学院,北京100083

出　　处：《无损检测》2007年第3期135-138,共4页Nondestructive Testing

摘　　要：在超声自动检测系统中,电机驱动器会对系统产生强烈的电磁干扰,尽管采用硬件抑制措施后,检测信号中仍含有部分噪声。从软件滤波的角度分析超声自动检测系统中的电机干扰问题,比较了MSMA042A1H交流伺服电机和110BF003步进电机对超声检测信号的影响,统计了不同类型干扰出现的概率,分析了干扰的时频域特性,并提出相应的滤波方法,为超声自动检测系统电机的选型提供了依据。In the automatic ultrasonic testing system, strong electromagnetic interference is caused by the motor drivers. After hardware-based suppressive methods have been taken, some noises are still induced in the testing signals. The motor interferences were analyzed on the testing system through the signal filtering processing based on software. The influences on ultrasonic testing signals produced by MSMA042A1H AC Scrvo motor and 110BF003 Stepping motor were compared. After the probabilities of different interferences were calculated and the interference characteristics in time and frequency domains were analyzed, corresponding filter processing methods were brought forward, which provided a gist of motor selection for the ultrasonic automatic testing system.

关 键 词：自动超声检测系统 电磁干扰 交流伺服电机 步进电机 带通滤波 

分 类 号：TG115.28[金属学及工艺—物理冶金]