Portable instrument for in-vivo infrared oxymetry using spread-spectrum modulation

Trevisan, Stefano and Bavera, Matteo and Giardini, Mario Ettore (2007) Portable instrument for in-vivo infrared oxymetry using spread-spectrum modulation. Journal of Instrumentation, 2. P04005. ISSN 1748-0221

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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. A portable NIRS research-grade acquisition system, dedicated to measurements during muscular exercise, is presented. The instrument is able to control up to eight LED sources and two detectors. A digital correlation technique, implemented on a single-chip RISC microcontroller, performs source-to-detector multiplexing. Such algorithm is highly optimized for computational efficiency and ambient noise rejection. Software-configurable input stages allow for flexibility in instrument setup. As a result of the specific correlation technique employed, the instrument is compact, lightweight and efficient. Clinical tests on oxygen consumption show excellent performance.

    Creators(s): Trevisan, Stefano, Bavera, Matteo and Giardini, Mario Ettore ORCID logoORCID: https://orcid.org/0000-0003-4849-9683;
    Item type:Article
    ID code:44982
    Keywords:front-end electronics for detector readout, photon detectors for UV, optical detector readout concepts, digital signal processing (DSP), solid-photocathodes, gas-photocathodes, visible and IR photons, Bioengineering, Biomedical Engineering
    Subjects:Technology > Engineering (General). Civil engineering (General) > Bioengineering
    Department:Faculty of Engineering > Biomedical Engineering
    Depositing user: Pure Administrator
    Date deposited:25 Sep 2013 10:58
    Last modified:23 Feb 2021 10:28
    URI:https://strathprints.strath.ac.uk/id/eprint/44982
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