公开(公告)号：US20140026650A1

公开(公告)日：2014-01-30

申请号：US13948748

申请日：2013-07-23

Applicant: ALSTOM Technology Ltd

Inventor： Maximilian HOBELSBERGER ,  Ken Yves Haffner ,  Etienne Louis Laprais ,  Peter Broch

IPC: G01M15/14

CPC classification number: G01M15/14

Abstract: The invention relates to a method for detecting rubbing and/or contact points on machines with rotating parts. The rotating parts form an electrical coaxial system with respect to the stationary parts of such a machine, in which system electrical voltage pulses are propagated at a characteristic speed because of the small distance between the rotating and the stationary part. Short electrical voltage pulses and/or continuous alternating voltage signals are applied between the rotating part and the stationary part, an electrical connection occurring between the rotating and the stationary part at a rubbing and/or contact point. In order to locate this rubbing and/or contact point as a point of electrical discontinuity, the period of time until the reflected pulses arrive is measured along the path of propagation of the electrical voltage pulses and/or of the continuous alternating voltage signals.

Abstract translation: 本发明涉及一种用于检测具有旋转部件的机器上的摩擦和/或接触点的方法。 旋转部件相对于这种机器的静止部件形成电气同轴系统，由于旋转部件和固定部件之间的距离小，系统电压脉冲以特征速度传播。 短的电压脉冲和/或连续的交流电压信号施加在旋转部分和固定部分之间，在摩擦和/或接触点处在旋转和静止部分之间发生电连接。 为了将该摩擦和/或接触点定位为电不连续点，直到反射脉冲到达的时间周期沿着电压脉冲和/或连续交流电压信号的传播路径被测量。