SPECTROSCOPIC HOLOGRAPHY - A NEW METHOD FOR MODE ANALYSIS OF RANDOMLY EXCITED STRUCTURES

被引：2

作者：

POLITCH, J

机构：

[1] Department of Aerospace Engineering, Technion-Israel Institute, Technion

来源：

JOURNAL OF THE OPTICAL SOCIETY OF AMERICA A-OPTICS IMAGE SCIENCE AND VISION | 1990年 / 7卷 / 08期

关键词：

D O I：

10.1364/JOSAA.7.001355

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

A method as developed for analyzing modes and amplitudes of vibration of a randomly excited object. Timeaverage holography, in which the reference beam was mechanically excited at any given frequency in the spectral range of the random excitation, was applied. The phase of the exciting vibration of the reference beam was locked to the phase of the specific frequency in the random band. This method was applied as successfully as for objects excited with swept sinusoidal vibration. © 1990 Optical Society of America.

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页码：1355 / 1361

页数：7

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