Pulsed Magnetic Field near Metal Surface

被引：0
作者：
Pavlyuchenko, V. V. [1 ]
Doroshevich, E. S. [1 ]
机构：
[1] Belarusian Natl Tech Univ, Minsk 220013, BELARUS
来源：
RUSSIAN JOURNAL OF NONDESTRUCTIVE TESTING | 2022年 / 58卷 / 11期
关键词：
pulsed magnetic field; aluminum plate; magnetic carrier; HYSTERETIC INTERFERENCE; COATINGS; SIGNALS;
D O I：
10.1134/S1061830922700061
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
The experimental dependences of the maximum strength of the secondary pulsed H (d) magnetic field near the surface of metal plates on their thickness obtained using a discrete magnetic field sensor (DMFS) and reduced to the primary source field strength are presented. The thickness of the plates varied from 0.015 to 2 mm. DMFS with aluminum and lead plates were subjected to magnetic field pulses of a linear inductor with a rise time from 5 to 60 mu s. Arctangent analytical functions H(d) have been found that are used to calculate the hysteresis interference of a pulsed magnetic field in a reflected wave in order to increase the sensitivity and accuracy of monitoring the thickness of metal objects, the specific electrical conductivity of their material, and continuity defects in them.
引用
收藏
页码：983 / 991
页数：9
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