MEASUREMENT OF THE LONGITUDINAL AND TRANSVERSE VIBRATION FREQUENCIES OF A ROD BY SPECKLE INTERFEROMETRY

被引：9

作者：

BAYON, A

GASCON, F

VARADE, A

机构：

[1] Departamento de Fisica Aplicada a los Recursos Naturales, Universidad Politecnica de Madrid, 28003, Madrid, Rios Rosas

来源：

IEEE TRANSACTIONS ON ULTRASONICS FERROELECTRICS AND FREQUENCY CONTROL | 1993年 / 40卷 / 03期

关键词：

D O I：

10.1109/58.216840

中图分类号：

O42 [声学];

学科分类号：

070206 ; 082403 ;

摘要：

A heterodyne interferometric system was used to detect the normal and tangential components of the displacement at one point of a sample when it is vibrating freely in its natural modes, arising from transient excitation. A cylindrical aluminium rod was the test sample. An analysis of the spectrum associated with the in-plane and out-of-plane displacements allowed us to determine the values or the longitudinal and transverse natural frequencies.

引用

页码：265 / 269

页数：5