钢轨缺陷检测：概述及未来发展需要

钢轨缺陷检测：概述及未来发展需要(中文12000字,英文PDF)
Robin Clark*
Sperry Rail, Inc., Danbury, CT, USA
摘要
铁路缺陷检测在保障世界铁路安全方面发挥着重要作用。近年来，由钢轨断裂引发的事故引起人们对检测钢轨缺陷技术的关注。本文回顾了目前所使用的技术，以及最近的现场应用实例。本文还讨论了一些正在进行的改进和未来的选择。
关键词：铁路检查；超声波检测；电磁测试；疲劳缺陷；滚子搜索单元
Abstract
Rail Flaw Detection has an important part to play in ensuring the safety of the world’s railroads. Recent accidents caused by broken rails have focused attention on the technologies that enable the detection of flaws in railroad rail. This paper reviews the technologies currently employed, along with examples of recent field applications. Some of the ongoing advancements and options for the future are also discussed.
Keywords: Rail inspection; Ultrasonic testing; Electromagnetic testing; Fatigue defects; Roller search unit