An acoustic plethysmograph to measure total infant body volume.
An acoustic plethysmograph to measure total infant body volume.
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用于测量婴儿身体总体积的声学体积描记器。
DOI：
10.1115/1.3138560
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发表时间：
1985
期刊：
影响因子：
--
通讯作者：
Garza,C
中科院分区：
文献类型：
--
作者：
Deskins,WG;Winter,DC;Sheng,HP;Garza,C
已经使用亥姆霍兹共振器的原理开发了旨在测量早产儿的身体体积的声学体积描记器，其中共振频率取决于共振腔的体积。建立了一个原型系统，并用于测量无生命物体和新生小型猪的体积。无生命物体的结果与水位移的可比测量结果在1%以内一致。动物体体积测量结果与使用流体静力称重获得的结果相比（平均值在1.1%以内）。
An acoustic plethysmograph intended to measure the body volume of premature infants has been developed using the principle of the Helmholtz resonator, in which the resonance frequency is dependent on the volume of the resonating cavity. A prototype system was built and used to measure the volume of inanimate objects and newborn miniature pigs. Results for inanimate objects agree within 1 percent with comparable measurements by water displacement. Results of the animal body volume measurements compare favorably (within an average of 1.1 percent) with those obtained using hydrostatic weighing.