AUTOMATIC ACOUSTIC MEASUREMENT SYSTEM BY MECHANICAL RESONANCE OF CONTINUOUS SOUND-WAVES

被引：8
|
作者：
FUKAMI, T
机构：
[1] Department of Physics, Kyushu University, Fukuoka
来源：
JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS SHORT NOTES & REVIEW PAPERS | 1990年 / 29卷 / 01期
关键词：
Mechanical resonance; Oxide superconductor; Sound velocity;
D O I：
10.1143/JJAP.29.206
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
Using the mechanical resonance of continuous sound waves with frequency higher than 5 MHz, an automatic measurement system is set up for simultaneous measurements of sound velocity and attenuation coefficient in thin disk samples. It is confirmed that the change of sound velocity Δυs/υ0, can be measured automatically with relative accuracy within 10-5with changing temperatures at rates from 60 k/h to 3 k/h. © 1990 IOP Publishing Ltd.
引用
收藏
页码：206 / 207
页数：2
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