Acoustic pulse echo measurements at 200 MHz
作者:
B. T. Khuri‐Yakub,
G. S. Kino,
期刊:
Applied Physics Letters
(AIP Available online 1977)
卷期:
Volume 30,
issue 2
页码: 78-80
ISSN:0003-6951
年代: 1977
DOI:10.1063/1.89294
出版商: AIP
数据来源: AIP
摘要:
We have carried out acoustic pulse echo measurement with 2‐nsec‐wide pulses. These are used to excite a zinc oxide layer deposited on a conically shaped sapphire buffer rod 2 mm in diameter at the tip of the cone. We have found that an easy way to make contact between the sapphire rod and a solid material under study is by means of a gold foil. We have measured the thickness of a nickel plating on aluminum of the order of 50 &mgr;m, and that of a 134‐&mgr;m‐thick glass slide to within 2%.
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