Measurement of the scattering and absorption cross sections of the human body

被引：14
|
作者：
Conti, SG
Roux, P
Demer, DA
de Rosny, J
机构：
[1] SW Fisheries Sci Ctr, La Jolla, CA 92037 USA
[2] Univ Calif San Diego, Scripps Inst Oceanog, Marine Phys Lab, La Jolla, CA 92093 USA
[3] Univ Paris 07, ESPCI, Lab Ondes & Acoust, F-75005 Paris, France
来源：
APPLIED PHYSICS LETTERS | 2004年 / 84卷 / 05期
关键词：
D O I：
10.1063/1.1644626
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
Presented here are absolute measurements of the acoustic intensity scattered and absorbed by humans. The total scattering and absorption cross sections, sigma(T) and sigma(a), were obtained for individual humans walking randomly in a room, using long-duration acoustic reverberation. Within the audible range, the sound scattering spectra of the human body is similar to that of a hard ellipsoid with same volume (dimensions proportional to the mass to the one-third power). Moreover, increasing amounts of clothing have little effect on scattering while absorption is greatly increased. (C) 2004 American Institute of Physics.
引用
收藏
页码：819 / 821
页数：3
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