Properties of Hydrophone with Porous Piezoelectric Ceramics

Autor:	Housaku Sato, Arai Toru, Kazutami Kawamura, Tetsuji Miyata, Kazutoshi Ayusawa, Keiichi Kobayashi
Rok vydání:	1991
Předmět:	Materials science Hydrophone Acoustics General Engineering General Physics and Astronomy Piezoelectricity Noise (electronics) Acceleration High pressure visual_art visual_art.visual_art_medium Ceramic Porosity Sensitivity (electronics)
Zdroj:	Japanese Journal of Applied Physics. 30:2253
ISSN:	1347-4065 0021-4922
DOI:	10.1143/jjap.30.2253
Popis:	We constructed a hydrophone using porous piezoelectric ceramics and conducted a detailed investigation into hydrophone sensitivity under higher pressure and its acceleration sensitivity as vibrational noise. At a pressure of 7.85 MPa, the hydrophone sensitivity of the porous piezoelectric ceramic hydrophone was some 20 dB higher than that of the piesoelectric ceramic hydrophones. The difference in acceleration sensitivity between the porous piezoelectric ceramics and the piezoelectric ceramics was extremely minor. The hydrophone sensitivity is sufficiently high to allow us to consider vibrational noise as negligible.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::f78bd944438f353e1c642ac6bcd3ff4c https://doi.org/10.1143/jjap.30.2253 Zobrazit plný text záznamu