Noncontact method applied to determine thickness of thin layer based on laser ultrasonic technique
文献类型：期刊论文
| 作者 | Zhao, Y. ; Ma, J.; Chen, J. W.; Ouyang, H.; Wang, M. H.; Zhao, P.; Zhang B(张博)
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| 刊名 | MATERIALS RESEARCH INNOVATIONS
 |
| 出版日期 | 2014 |
| 卷号 | 18期号:S2页码:1081-1085 |
| 关键词 | Nondestructive testing Laser ultrasonic EMAT Thin layer |
| ISSN号 | 1432-8917 |
| 产权排序 | 3 |
| 通讯作者 | Zhao, Y. |
| 中文摘要 | This paper describes a novel method to non-destructively determine the thickness of thin layer in a non-contact way. A model of wave interference was established based on the multireflection of shear wave in layered system. Furthermore, its expression of reflection coefficient phase was deduced to provide the principle of thickness measurement. A formed laser source by focusing a line on the layer surface was used to generate shear wave, while an electromagnetic acoustic testing (EMAT) sensor was proposed to receive the wave. An example of the method and experimental measurement for comparison is given for a thin steel sheet with the thickness of approximate 0.4 mm. The relative error between the present method and metallography method is less than 4%, which shows laser-EMAT technique is very suitable to non-destructive assess the thickness of the layer. |
| WOS标题词 | Science & Technology ; Technology |
| 类目[WOS] | Materials Science, Multidisciplinary |
| 研究领域[WOS] | Materials Science |
| 关键词[WOS] | THERMAL BARRIER COATINGS ; VELOCITY ; DENSITY |
| 收录类别 | SCI ; EI |
| 资助信息 | National Natural Science Foundation of China [51205240]; Outstanding Young Scientists Program of Shandong [BS2011ZZ016]; Youth Science Funds of Shandong Academy of Sciences [2012-02] |
| 语种 | 英语 |
| WOS记录号 | WOS:000337146600205 |
| 源URL | [http://ir.sia.cn/handle/173321/15086]  |
| 专题 | 沈阳自动化研究所_工业控制网络与系统研究室 |
| 推荐引用方式 GB/T 7714 | Zhao, Y.,Ma, J.,Chen, J. W.,et al. Noncontact method applied to determine thickness of thin layer based on laser ultrasonic technique[J]. MATERIALS RESEARCH INNOVATIONS,2014,18(S2):1081-1085. |
| APA | Zhao, Y..,Ma, J..,Chen, J. W..,Ouyang, H..,Wang, M. H..,...&Zhang B.(2014).Noncontact method applied to determine thickness of thin layer based on laser ultrasonic technique.MATERIALS RESEARCH INNOVATIONS,18(S2),1081-1085. |
| MLA | Zhao, Y.,et al."Noncontact method applied to determine thickness of thin layer based on laser ultrasonic technique".MATERIALS RESEARCH INNOVATIONS 18.S2(2014):1081-1085. |
入库方式： OAI收割
来源：沈阳自动化研究所
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