Railway Wheels Flat Detector Using Doppler Effect

被引：20

作者：

Brizuela, Jose ^{[1
]}

Ibanez, Alberto ^{[1
]}

Nevado, Patricia ^{[1
]}

Fritsch, Carlos ^{[1
]}

机构：

[1] CSIC, Inst Automat Ind, Madrid 28500, Spain

来源：

INTERNATIONAL CONGRESS ON ULTRASONICS, PROCEEDINGS | 2010年 / 3卷 / 01期

关键词：

Doppler Effect applications; NDT industrial applications; Railway wheels inspection; wheel profile;

D O I：

10.1016/j.phpro.2010.01.104

中图分类号：

O42 [声学];

学科分类号：

070206 ; 082403 ;

摘要：

A new inspection system for railway wheels using the Doppler Effect is presented in this work. The proposed system analyses the rail-wheel contact by frequency and phase shifts. Cracks on the wheel tread are determined while the train moves at a low speed. A special rail is used to propagate monochromatic surface waves. When a wheel on the measuring rail moves at constant speed, the received signal will present a regular frequency shift related with the movement speed. The difference between the emitted and the received frequencies will change if any defect on the wheel tread is detected.

引用

页码：811 / 817

页数：7