客运索道具有投资少,对地形适应力强,运载量较大,无噪声无污染等特点,尤其适合地形复杂的地区,如风景名胜地等。而客运索道运载索长期暴露在户外,承受风、霜、冰、雪、雨等恶劣自然条件的严峻考验,有的高山索道还要不断经受海拔高度差所引起的较大温差的影响。恶劣工作条件往往造成客运索道运载索过早产生腐蚀、磨损、疲劳、断丝、变形等缺陷,严重威胁到客运索道的安全运行。近年来随着钢丝绳无损探伤技术的不断发展,钢丝绳探伤仪以其便捷、高效等优点,越来越多地被应用在客运索道运载索的检测上。 1 基本原理和先天缺陷目前使用的MTC钢丝绳探伤仪,其基本原理是 Passenger ropeway with less investment, strong adaptability to the terrain, carrying capacity, noise-free and pollution-free features, especially for terrain complex areas, such as scenic spots and so on. Passenger ropeway carrying cables are exposed to the outdoors for a long time and are subject to severe tests of harsh natural conditions such as wind, frost, ice, snow and rain. Some cable lanes are subject to large temperature differences caused by differences in altitude above sea level. Poor working conditions often result in passenger ropeway carrying too early to produce corrosion, wear, fatigue, broken wires, deformation and other defects, a serious threat to the safe operation of passenger ropeways. In recent years, with the continuous development of non-destructive testing technology of wire rope, wire rope flaw detector is more and more used in the testing of passenger ropeway carrying cable because of its advantages of convenience and high efficiency. 1 basic principles and birth defects Currently used MTC wire rope flaw detector, the basic principle is