药柱脱粘超声检测方法研究

为了能够准确检测出包覆层与推进剂的缺陷，针对药柱自身形状的特点，采用水浸式超声脉冲回波法，提取各部位的缺陷特征回波信号，并对其进行C扫描，获得了试件缺陷图像，并对图像去噪、二值化后得到缺陷的位置和面积信息。选取脱粘情况已知的试件与本系统检测情况进行比较，结果表明，本检测系统检测缺陷位置准确，且有很好的分辨率。...

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Bibliographic Details
Published in电子技术应用 Vol. 38; no. 3; pp. 134 - 135
Main Author 赵鹏 王召巴 陈友兴
Format Journal Article
LanguageChinese
Published 中北大学电子测试技术国家重点实验室,山西太原,030051 2012
Subjects
包覆层与推进剂
图像处理
缺陷检测
超声脉冲回波法
包覆层与推进剂
超声脉冲回波法
图像处理
缺陷检测
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Summary:为了能够准确检测出包覆层与推进剂的缺陷，针对药柱自身形状的特点，采用水浸式超声脉冲回波法，提取各部位的缺陷特征回波信号，并对其进行C扫描，获得了试件缺陷图像，并对图像去噪、二值化后得到缺陷的位置和面积信息。选取脱粘情况已知的试件与本系统检测情况进行比较，结果表明，本检测系统检测缺陷位置准确，且有很好的分辨率。
Bibliography:According to the structure characteristics of grain, the ultrasonic impact-echo method of immersion was adopted to detect the cladding/propellant flaws accurately in this paper. By extracting various echo signals of defect characteristics, and then adopting the ultrasonic C-scan imaging technique, the flaw＇s image of specimen was obtained. Finally information on defect location and size is achieved by image denoising, binarization. Specimens of the known debonding are selectd for comparing with the results of this system, and the result shows that the method can detect the precise location of defects and have a good resolution.
image processing; defect detection; the cladding/propellant; the ultrasonic impact-echo method
Zhao Peng, Wang Zhaoba, Chen Youxing i National Key Lab for Electronic Measurement Technology, North University of China ,Taiyuan 030051, China
11-2305/TN
ISSN:0258-7998
DOI:10.3969/j.issn.0258-7998.2012.03.043