Title :
Design of electromagnetic acoustic transducer for wheel flaw detection
Author :
Yang Zheng-guang ; Ye Ping
Author_Institution :
Coll. of Mech. & Electr. Eng., China Univ. of Min. & Technolog, Xuzhou, China
Abstract :
An electromagnetic acoustic transducer (EMAT) can emit and receive ultrasonic waves though electromagnetic coupling. The non-contact characteristic of EMAT makes no coupling medium, so it is specially concerned by researchers on nondestructive testing and evaluation. This paper mainly introduce the design of electrical parameters and geometric parameters of electromagnetic acoustic surface wave detection system, which is special for the moving-wheels flaw detection, and the principle of moving-wheels flaw detection, it can be used as the key part of the automatic flaw detection system of the moving-wheels.
Keywords :
acoustic transducers; nondestructive testing; railway rolling stock; railway safety; surface acoustic waves; wheels; electrical parameters; electromagnetic acoustic transducer; electromagnetic coupling; geometric parameters; moving-wheels flaw detection principle; nondestructive testing; surface wave detection system; wheel flaw detection; Acoustic signal detection; Acoustic testing; Acoustic transducers; Circuits; Coils; Electromagnetic coupling; Electromagnetic scattering; Rail transportation; Surface acoustic waves; Wheels; Electromagnetic acoustic transducer; Surface Acoustic Wave; Train wheel;
Conference_Titel :
Mechanic Automation and Control Engineering (MACE), 2010 International Conference on
Conference_Location :
Wuhan
Print_ISBN :
978-1-4244-7737-1
DOI :
10.1109/MACE.2010.5535533
