ON-TRACS : Rapid rail tension measurment system

大多数现代铁路安装使用的是“无缝线路”，由于没有伸缩节，这种钢轨的铺设预张力取决于所要经历的极端温度。为保证运营安全，有必要建立现场测量钢轨残余张力(或压力)的方法，目前的方法费时费力且具有侵入性，限制了其应用。将演示一种新方法的概念，以产生一种更快、非侵入性和更方便的测量方法。

Most modern rail installations use a 'continuously welded rail' which, because of the lack ofexpansion joints, is laid with a pre- tension as determined by the temperature extremes to beexperienced. In order to maintain safe operation during service it is necessary to have amethod of measuring residual rail tension (or compression) in situ.Current methods are time consuming and invasive, limiting their application. The concept of anew method to produce a much faster, non invasive and more convenient method ofmeasurement will be demonstrated.