XIE Yi,LI Xiang,LIU Yucheng,et al.A Kind of Detection of Cracks on Metal Surface based on Microstrip Antenna[J].Journal of Chengdu University of Information Technology,2021,36(04):380-384.[doi:10.16836/j.cnki.jcuit.2021.04.005]
一种基于微带天线的金属表面裂纹的检测
- Title:
- A Kind of Detection of Cracks on Metal Surface based on Microstrip Antenna
- 文章编号:
- 2096-1618(2021)04-0380-05
- Keywords:
- microwave near-field; nondestructive testing and evaluation; metallic surface defect; microstrip antenna
- 分类号:
- TN822+.4
- 文献标志码:
- A
- 摘要:
- 金属材料广泛应用于航空航天、机械、交通运输等领域。长期工作在极端环境如高温高压下的金属材料极易产生裂纹而影响产品性能,从而造成经济损失。金属材料表面缺陷往往掩盖在涂层下方,肉眼无法识别,而微波无损检测技术拥有较强的穿透能力,可以穿透覆盖在金属表面的介电材料对金属表面的缺陷实现快速、有效地检测。设计了一种基于微带天线的传感器对金属表面的裂纹进行检测。研究发现S11曲线与金属表面缺陷有紧密联系,从S11曲线的峰值之间的距离可以快速定量地判断缺陷的宽度信息。研究结果表明,该微带天线传感器能精确、迅速地获取金属表面裂纹信息,为实现对金属表面健康状况评估提供了一种简单有效的方法。
- Abstract:
- Nowadays, metal materials are widely used in aerospace, machinery, transportation, and other fields. However, due to long-term exposure to air and harsh external environments, the integrity of the surface of the components will be affected and surface cracks and metal corrosion may occur leading to product performance and cause economic losses. Microwave nondestructive testing technology has strong penetration ability, which can penetrate the dielectric materials covering the metal surface to realize rapid and effective detection of metal surface defects. In this paper, we propose a microwave detection scheme for metal surface defects based on a microstrip antenna. It was found that S11 curve is closely related to the information of metal surface defects. The width information of defects can be determined quickly and quantitatively from the distance between the peak values of S11 curve. The results show that the microstrip antenna sensor can accurately and quickly obtain the information of metal surface cracks, which provides a simple and effective method for detecting of metal surface health.
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备注/Memo
收稿日期:2021-04-28