使用扩频调制的便携式高端体内红外光谱仪器

Proceedings of the 21st IEEE Instrumentation and Measurement Technology Conference (IEEE Cat. No.04CH37510) Pub Date : 2004-05-18 DOI:10.1109/IMTC.2004.1351197

M. Giardini, S. Trevisan

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引用次数: 5

摘要

近红外光谱(NIRS)可用于无创、连续监测人体组织血流动力学和氧合的局部变化。特别是，这项技术对于无人看管的体力活动期间的肌肉功能监测特别有用。介绍了一种便携式近红外研究级采集系统，用于肌肉运动过程中的低噪声测量。扩频复用方案显著提高了系统性能。由此产生的仪器结构紧凑，重量轻，效率高。对运动和静脉阻塞期间的耗氧量的初步测试显示出良好的检出率和时间反应。

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Portable high-end instrument for in-vivo infrared spectroscopy using spread spectrum modulation

Near infrared spectroscopy (NIRS) can be employed to monitor noninvasively and continuously local changes in hemodynamics and oxygenation of human tissues. In particular, the technique can be particularly useful for muscular functional monitoring during unattended physical activity. A portable NIRS research-grade acquisition system, dedicated to low-noise measurements during muscular exercise, is presented. A spread-spectrum multiplexing scheme significantly enhances system performance. The resulting instrument is compact, lightweight and efficient. Preliminary tests on oxygen consumption during exercise and venous occlusion show excellent detectivity and time response.

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Proceedings of the 21st IEEE Instrumentation and Measurement Technology Conference (IEEE Cat. No.04CH37510)

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