Taylor A, Aksoy Y, Scopes J W, du Mont G, Taylor B A
J Biomed Eng. 1985 Jan;7(1):9-17. doi: 10.1016/0141-5425(85)90003-2.
An infant enclosed in a rigid-walled chamber displaces a volume of air equal to its own volume. The volume of air displaced can be estimated by the change in pressure produced by a standard reduction in the chamber's volume according to Boyle's law. An instrument embodying this principle has been developed in which the differential pressure between two identical chambers is measured during equal sinusoidally imposed volume changes in the two. Problems arising from variable departure of conditions of pressure cycling, from isothermal towards adiabatic, have been dealt with by empirically derived corrections. Data are presented on the use of the method for low birth-weight infants.
置于刚性壁腔室中的婴儿所排出的空气体积与其自身体积相等。根据玻意耳定律，通过腔室体积标准减小所产生的压力变化，可以估算出排出的空气体积。现已开发出一种体现该原理的仪器，该仪器可在两个相同腔室进行相等的正弦体积变化时测量两者之间的压差。压力循环条件从等温向绝热的可变偏差所产生的问题，已通过经验推导的校正方法得到解决。文中给出了该方法用于低体重婴儿的相关数据。
