System for Measuring Sound Velocity in Liquid Using Leaky Lamb Wave Modes on 128゜ Rot. Y-X Cut LiNbO_3 Substrate : Fundamentals
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概要
- 論文の詳細を見る
A system for measuring sound velocity in liquid is constructed using an interdigital transducer for leaky Lamb waves on a 128℃ rot. Y-X cut LiNbO_3 substrate. The leaky Lamb wave device is composed of a 1-mm-periodicity interdigital transducer and a counter electrode on each surface of the 0.5-mm-thick piezoelectric substrate. The device is operable for 8 modes in the frequency range of 2〜25 MHz at a water-solid interface. The measurement principle of this system uses the interference between a rf pulse signal and a reflected signal. The system successfully measures the absolute sound velocity in some liquid samples. The measurement resolution of the system is within 0.1%.
- 社団法人応用物理学会の論文
- 1991-09-30
著者
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Toda Kohji
Departmemt Of Electronic Engineering National Defense Academy
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Sawaguchi Akihiro
Department Of Electronic Engineering National Defense Academy
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