摘要
介绍了动车车轮在线超声检测系统的结构和原理,针对768个通道的单晶斜探头和双晶直探头所采集的回波信号,提出了一种利用霍尔传感器对行驶中的动车轮对进行定位,从而对大批量超声探头检测数据加以筛选处理的方法。经过实际应用证明,处理后的检测数据在系统中对车轮内部辋裂缺陷的成像准确、清晰。
The structure and mechanism of on-line ultrasonic inspection system for CRH train wheel was introduced.Using the echo signals obtained from 768 channels of angle probes and normal probes,a method of processing massive data using hall sensor was put forward to locate the position of running wheels.By practical application,the imaging for the processed inspection data of interior wheel flaws was accurate and clear.
出处
《无损探伤》
2015年第2期22-27,共6页
Nondestructive Testing Technology
基金
北京高等学校青年英才计划项目(YETP0572)
关键词
动车车轮
超声探头
霍尔传感器
车轮定位
辋裂缺陷
在线检测
CRH train wheel
Ultrasonic probe
Hall sensor
Wheel location
Rim crack defects
On-lineinspection
