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前言 针对高+Gz加速度飞行时G-LOC的预防的保护性探讨已经为数众多,并未完全成功。因为近红外线很容易穿透皮肤及头盖骨,我们设计了一个近红外线光谱系统。该系统根据Beer-Lambert定律能提供脑氧合作用和脑血容量间的无创性连续性的相对变化。方法 将四种不同波长低能激光二极管和相距5.5cm的光电探测器的近红外分光镜(NIRS)探头安置在固定于前额上的头带中。该探头与在作战部NAWC-飞机部的离心机上牢固安置的NIRS系统相连接。在持续时间可变的脉冲+Gz作用时,志愿者经历了G-LOC的全程记录。数据被在线数字化,并且通
Preface The protective discussion of G-LOC prevention for high + Gz acceleration flights has been numerous and unsuccessful. Because near-infrared rays penetrate the skin and skull easily, we designed a near-infrared spectroscopy system. The system, according to the Beer-Lambert law, provides a relative change in noninvasive continuity between cerebral oxygenation and cerebral blood volume. Methods Near infrared spectroscopy (NIRS) probes of four different wavelength low energy laser diodes and photodetectors 5.5 cm apart were placed in a headgear secured to the forehead. The probe is connected to a NIRS system securely attached to the Centrifuge in the NAWC-Aircraft Division of Operations Department. Volunteers underwent G-LOC full-time recording with variable duration pulse + Gz. Data is digitized online and on