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陶瓷基复合材料的太赫兹无损检测方法

Terahertz Nondestructive Detection Method of Ceramic Matrix Composites

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摘要

提出了一种时频域多模式新光谱成像方法, 对内含缺陷的4种陶瓷基复合材料(CMC)样本实现了无损检测, 形成了检测样本的太赫兹图像库, 并引入5个图像质量的客观综合评价指标, 通过指标融合处理选出了质量较佳的太赫兹图像。基于尺度不变特征变换与K均值聚类实现了该图像的检索。实验结果证实, 该方法可有效地对CMC不同位置处的不同宽度缺陷进行成像检测。

Abstract

A novel spectral imaging method based on multi-modes in time-frequency domain is proposed. This method is used for the nondestructive detection of four kinds of ceramic matrix composite (CMC) samples with defects. A THz image set for the test samples is formed, and five quantity evaluation indexes for image quality are introduced. The THz images with the best quality are chosen via the index integration treatment. The retrieval of this image is realized based on the Scale Invariant Feature Transform (SIFT) feature selection and K-means clustering algorithm. The experimental results confirm that the proposed method can be effectively used in the imaging detection of the CMC materials with various defect widths at different positions.

Newport宣传-MKS新实验室计划
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中图分类号:TP751

DOI:10.3788/lop55.061101

所属栏目:成像系统

基金项目:国家自然科学基金(61403318)

收稿日期:2017-12-01

修改稿日期:2017-12-14

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作者单位    点击查看

李铁军:重庆大学自动化学院, 重庆 400044集美大学信息工程学院, 福建 厦门 361021
孙跃:重庆大学自动化学院, 重庆 400044
邵桂芳:厦门大学自动化系, 福建 厦门 361000
石为人:重庆大学自动化学院, 重庆 400044
刘建军:九江学院电子工程学院, 江西 九江130061
颜识涵:中国科学院重庆绿色智能技术研究院太赫兹技术研究中心, 重庆 400714

联系人作者:邵桂芳(gfshao@xmu.edu.cn)

备注:李铁军(1976-), 男, 博士研究生, 主要从事图像处理与智能优化方面的研究。E-mail: litiejun@jmu.edu.cn

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引用该论文

Li Tiejun,Sun Yue,Shao Guifang,Shi Weiren,Liu Jianjun,Yan Shihan. Terahertz Nondestructive Detection Method of Ceramic Matrix Composites[J]. Laser & Optoelectronics Progress, 2018, 55(6): 061101

李铁军,孙跃,邵桂芳,石为人,刘建军,颜识涵. 陶瓷基复合材料的太赫兹无损检测方法[J]. 激光与光电子学进展, 2018, 55(6): 061101

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