A photothermal emitter and an EMA receiver of ultrasonic Lamb waves

被引：2
|
作者：
Petrov, Yu. V. [1 ]
Gurevich, S. Yu. [1 ]
Golubev, E. V. [1 ]
机构：
[1] South Ural State Univ, Chelyabinsk 454080, Russia
来源：
RUSSIAN JOURNAL OF NONDESTRUCTIVE TESTING | 2015年 / 51卷 / 05期
关键词：
laser excitation; ultrasonic Lamb waves; photothermal emitter; wide-band EMA receiver;
D O I：
10.1134/S106183091505006X
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
Results of an investigation into the general characteristics of ultrasonic Lamb waves that are excited by a photothermal emitter in metallic plates as a function of its geometric and energy parameters are given. A metal surface area heated during irradiation by nanosecond optical pulses is such an ultrasonic emitter. Excited Lamb waves were recorded using a special wide-band EMA receiver. These findings can be used in the development of devices for the noncontact ultrasonic quality control of thin metalware.
引用
收藏
页码：272 / 279
页数：8
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