为了解决SONOTRONTM超声波站检测效率低、误判率高等问题,通过开发新型探头材料,研制方形探头等实现了探头国产化,并首创了在线随动探伤方法。结果表明:采用国产化探头,超声波站设备故障时间降低83.3%;探头寿命提高6.5倍,探头价格降低一半,在线更换调整时间缩短2/3;检测出钢轨缺陷的重现率不小于99.55%,且探伤起落架可适用于多种规格的重轨。 In order to solve the problems of low detection efficiency and high false positive rate of SONOTRONTM ultrasonic station, the localization of the probe is realized through the development of new probe materials, development of square probe, and the on-line follow-up inspection method is initiated. The results show that the failure time of ultrasonic equipment is reduced by 83.3%, the probe life is increased by 6.5 times, the probe price is reduced by half and the online adjustment time is shortened by two thirds. The detection rate of rail defects is not less than 99.55% Flaw detection and landing gear can be applied to a variety of heavy rail.