The modal projector

被引：21

作者：

Butler, John L. ^{[1
]}

Butler, Alexander L. ^{[1
]}

Butler, Stephen C. ^{[2
]}

机构：

[1] Image Acoust Inc, Cohasset, MA 02025 USA

[2] USN, Undersea Warfare Ctr, Newport, RI 02841 USA

来源：

JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA | 2011年 / 129卷 / 04期

关键词：

TRANSDUCER;

D O I：

10.1121/1.3559684

中图分类号：

O42 [声学];

学科分类号：

070206 ; 082403 ;

摘要：

The superposition of acoustical modes radiated from a transducer can provide directionality from a compact projector. This paper presents the foundation, as well as examples, of piezoelectric ceramic, piezoelectric single crystal, and magnetostrictive versions of this "modal projector." Measured and analytical, as well as finite element analysis modeled, results show good agreement and establish this transducer as a viable source of intensity with the advantages of an improved directivity index, reducing the power needed from a compact source. (C) 2011 Acoustical Society of America. [DOI: 10.1121/1.3559684]

引用

页码：1881 / 1889

页数：9

共 15 条

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[4] Butler J.L., 1988, U.S. Patent, Patent No. [4,754,441, 4754441]
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[8] A low-frequency directional flextensional transducer and line array
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[9] Ehrlich S.L.L., 1966, U.S. Patent, Patent No. [3,290,646, 3290646]
[10] MAXIMUM DIRECTIVITY INDEX OF A LINEAR POINT ARRAY
PRITCHARD, RL
[J]. JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA, 1954, 26 (06) : 1034 - 1039

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