NEAR AND FARFIELD OF STRIP-SHAPED ACOUSTIC RADIATORS

被引:8
作者
DROST, CJ
机构
[1] New York State College of Veterinary Medicine, Deoartment of Phvsioloev. Biochemistry, and Pharmacology, Cornell University, Ithaca, New York
关键词
D O I
10.1121/1.382493
中图分类号
O42 [声学];
学科分类号
070206 ; 082403 ;
摘要
The acoustic radiation produced by baffled flat strip-shaped sources of infinite length is treated in detail. The nearfield intensity distribution, nearfield to farfield transition, and cylindrical farfield radiation is calculated for homogeneous radiator surface excitation; such beams are shown to partially focus at their last maximum of intensity. Farfield radiation is calculated for radiators with a Gaussian surface velocity distribution, for shaded transducers, and for arrays of strip-shaped sources. The use of such radiators in Doppler flow measuring systems is discussed. © 1979, Acoustical Society of America. All rights reserved.
引用
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页码:565 / 572
页数:8
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