Magnetostriction electromagnetic-acoustic excitation of ultrasonic waves without a bias field

被引：1
|
作者：
Gobov, Yu. L. [1 ]
Mikhailov, A. V. [1 ,2 ]
Smorodinskii, Ya. G. [1 ,2 ]
机构：
[1] Russian Acad Sci, Mikheev Inst Phys Met, Ural Branch, Ekaterinburg 620990, Russia
[2] Ural Fed Univ, Ekaterinburg 620002, Russia
来源：
RUSSIAN JOURNAL OF NONDESTRUCTIVE TESTING | 2016年 / 52卷 / 12期
关键词：
nondestructive testing; ultrasound; electromagnetic-acoustic transduction; Rayleigh and Lamb waves; second harmonic; generation at doubled frequency; GENERATION;
D O I：
10.1134/S106183091612007X
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
A high-performance technique is suggested for generating ultrasonic waves by the magnetic-acoustic method without using a bias field. The technique is based on the frequency doubling of emitted ultrasonic wave as compared to the frequency of the field coil of electromagnetic transducer due to the evenness of magnetostriction. The efficiency of excitation and reception of ultrasonic waves at the doubled frequency without a bias field is compared with that at the base frequency with a bias field.
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页码：697 / 702
页数：6
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