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

Giardini, M.E. and Trevisan, S.; (2004) Portable high-end instrument for in-vivo infrared spectroscopy using spread spectrum modulation. In: Proceedings of the 21st IEEE Instrumentation and Measurement Technology Conference. IEEE Instrumentation/Measurement Technology Conference, 2 . IEEE, ITA, pp. 860-863. ISBN 078038248X

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    Abstract

    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.

    ORCID iDs

    Giardini, M.E. ORCID logoORCID: https://orcid.org/0000-0003-4849-9683 and Trevisan, S.;