Diffusive Hydrophone for Ultrasonic Measurements
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概要
- 論文の詳細を見る
Experimental performance of a newly developed diffusive hydrophone (DHP) is evaluated with respect to its sensitivity and spatial resolution. Although conventional hydrophones such as a polyvinylidene fluoride (PVDF) needle type hydrophone have been widely used in measurements of sound pressure, they have often failed to show sufficient sensitivity when their active elements are as small as 0.2 mm in diameter or below. The DHP allows precise use in sound field measurements with sufficient sensitivity. The basic operation of the DHP is discussed below, taking into account the spatial averaging effect that inevitably occurs over the hydrophone aperture.
- 2001-05-30
著者
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Shimizu Naomi
The University Of Electro-communications
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OHTA Haruyoshi
The University of Electro-Communications
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Kamakura Tomoo
The Univ. Of Electro-communications
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Shimizu Naomi
The University of Electro-Communications, 1-5-1 Chofugaoka, Choufu-shi, Tokyo 182-8585, Japan
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Kamakura Tomoo
The University of Electro-Communications, 1-5-1 Chofugaoka, Choufu-shi, Tokyo 182-8585, Japan
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