MICROWAVE INTERFEROMETER FOR NON-DESTRUCTIVE TESTING

被引:4
|
作者
Choi, J. [1 ]
Breugnot, S. [2 ]
Itoh, T. [1 ]
机构
[1] Univ Calif Los Angeles, Dept Elect Engn, Los Angeles, CA 90095 USA
[2] Bossa Nova Technol, Venice, CA 90291 USA
来源
REVIEW OF PROGRESS IN QUANTITATIVE NONDESTRUCTIVE EVALUATION, VOLS 29A AND 29B | 2010年 / 1211卷
关键词
Microwave Interferometer; Laser Generated Ultrasonic; Noncontact; Nondestructive; Lamb Wave;
D O I
10.1063/1.3362388
中图分类号
V [航空、航天];
学科分类号
08 ; 0825 ;
摘要
A K-band microwave interferometer for non-destructive sensing of high frequency low amplitude (nm) vibration is demonstrated. This sensor uses direct-conversion receiver architecture with a phase shifter to adjust its sensitivity while varying the target distance. Detection of nanoscale vibration and laser-generated ultrasound waves through thin aluminum plate are measured and then compared with the theoretical results.
引用
收藏
页码:2092 / +
页数:2
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