目前 ,轮轴微机控制超声波探伤机已越来越广泛地应用在我国铁路系统的各轮对检修单位。由于杂波干扰等问题 ,该设备在正常使用条件下存在一定比率的误报问题 (石家庄南车辆段误报率约为 8% ) ,造成系统判定有故障的轮对不一定真正存在缺陷 ,因此 ,需通过手工复查进一步判断。对 At present, the wheel axis microcomputer control ultrasonic flaw detection machine has been more and more widely used in China’s railway system of the wheel set overhaul units. Due to clutter interference and other issues, the device under normal conditions there is a certain ratio of false positives (Shijiazhuang South car false alarm rate of about 8%), resulting in the system to determine the failure of the wheel is not necessarily true defects, therefore , To be further judged by manual review. Correct