CONTINUOUS-WAVE METHODS APPLIED IN DETERMINING THE VELOCITY OF FAST ULTRASONIC-WAVES IN SATURATED POROUS-MEDIA

被引：4

作者：

SKUMIEL, A ^{[1
]}

KACZMAREK, M ^{[1
]}

机构：

[1] INST FUNDAMENTAL TECHNOL RES, PL-61725 POZNAN, POLAND

来源：

MEASUREMENT SCIENCE AND TECHNOLOGY | 1993年 / 4卷 / 12期

关键词：

Acoustic wave interference - Attenuation - Dynamics - Porous materials - Ultrasonic dispersion - Ultrasonic propagation - Ultrasonic reflection - Ultrasonic waves;

D O I：

10.1088/0957-0233/4/12/021

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The application of measuring methods with continuous waves for study of the propagation velocity of fast ultrasonic waves in a liquid-saturated porous material is considered. The technique has recourse to (i) detection of the amplitude of interfered waves and (ii) detection of the phase of the transmitted wave, while the frequency varies linearly with time and the thickness of porous samples is constant. The two procedures permit convenient determination of the presence of dispersion and the velocity of the dispersionless waves. Relatively large amplitudes of excited continuous waves and high degree of accuracy of the methods recommend them as useful tools for study of dynamic properties of saturated porous materials.

引用

页码：1440 / 1445

页数：6