Performance Characteristics of Electromagnetic Generation and Detection of Shear Horizontal Waves by Electromagnetic Acoustic Transducers

被引：0

作者：

机构：

[1] Kurozumi, Yasuo

[2] Higashi, Masayoshi

[3] Satou, Toshinori

[4] Nishikawa, Masahiro

来源：

Kurozumi, Y. (kurozumi@inss.cojp) | 2001年 / American Society for Nondestructive Testing卷 / 59期

关键词：

Shear flow - Acoustic emission testing - Acoustic transducers - Fracture testing - Eddy current testing - Ultrasonic testing - Steel testing;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

The diagnosis of material degradation and the detection of discontinuities in austenitic cast stainless steel have been studied by using ultrasonic waves generated by an electromagnetic acoustic transducer (EMAT). A simple circuit model for an EMAT generating horizontally polarized shear waves (SH waves) was established and magnitudes of oscillations were estimated by using the model and experimental data. As a result, the attenuation was described at two different frequencies of SH waves.

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