在当前铁路运输中列车运行速度越来越高,列车密度和牵引重量越来越大的情况下,对铁道线路的技术状态就提出了更高的要求。因之,国内外对研制轨道的检测技术和检测手段都极为重视。最近耿宇真同志汇集了全路有关单位在这方面的研制资料和情况,虽然目前还没能得到一个较为一致的看法,但供有关同志交流情况和工作参考尚属有益,特此刊印。 In the current railway transport train speed is higher and higher, train density and traction weight is more and more big case, the technical status of the railway line put forward higher requirements. Therefore, both at home and abroad attach great importance to the testing technology and testing methods of the orbit. Recently, Comrade Geng Yuzhen brought together all the information and information on the development of relevant units in this field. Although there is not a more unified view yet, it is beneficial for the relevant comrades to exchange information and work for reference.