Array-based acoustic leak location in spacecraft structures

被引：0
|
作者：
Reusser, R. [1 ]
Holland, S. D. [1 ]
Roberts, R. A. [1 ]
Chimenti, D. E. [1 ]
机构：
[1] Iowa State Univ, Ctr NDE, Ames, IA 50014 USA
来源：
REVIEW OF PROGRESS IN QUANTITATIVE NONDESTRUCTIVE EVALUATION, VOLS 26A AND 26B | 2007年 / 894卷
关键词：
ultrasonics; phased arrays; leak location;
D O I：
暂无
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
An array-based leak location sensor is being developed for spacecraft application which uses spatial Fourier transformation of plate wave signals to robustly determine leak location, independent of the effects of dispersive multiple mode signal transport. The underlying principle of operation is outlined. The performance of a prototype array sensor on structural skin containing integrally machined stiffeners is demonstrated. A significant frequency dependence of transmission efficiency on stiffener geometry is observed, indicating the importance of pass-band optimization.
引用
收藏
页码：1540 / +
页数：2
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