1问题的提出铁谱技术是铁路内燃机车工况监测的重要手段之一。我国是在80年代中后期将这一技术用于机车工况监测的。全国已有不少的机务段引入了铁谱监测系统，取得了大量的铁谱数据和图片。通过对这些数据的分析、处理可以及时了解机车各摩擦副的磨损状态，从而达到监测的目的 1 problem put forward Ferrography is one of the important means of railway diesel locomotive condition monitoring. Our country used this technology for locomotive condition monitoring in the mid and late 1980s. A number of locomotive depots have been introduced into the ferrography monitoring system in the country and a large number of ferrographic data and pictures have been obtained. Through the analysis of these data, the processing can keep abreast of the wear status of locomotive friction pairs, so as to achieve the purpose of monitoring