An alternative light based signal apparatus for generating biological patterns: Oximetry

Roxana P. Perez, Jairo J. Perez, M. J. Betancur, J. Bustamante

    Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review


    In spite of the lack of low cost biosignal specific purpose generators, there have been processing strategies to simulate control signals and dynamic states of different pathological diseases. Commercial simulators are not able to reproduce all signal behavior; thereby, we developed a light based emulator able to provide different signal patterns using colorimetry and spectrophotometry. Several parameters are configurable according to customer requirements. Amplitude and frequency are controlled by the usage of a DC motor, a coloured band, a mechanical structure, and, particularly, an oximetry probe. The prototype emulator provides basic signals such as sine, square, triangle, or complex physiological signals, as photoplethysmograms (PPG) and Electrocardiograms (ECG). Other complex patterns include sources of error and chaotic characteristics such as noise or motion artifact, can be simulated. The device may be used to analyze, determine and verify data acquisition platforms, medical instrumentation, training tool interfaces, among others. Preliminary results have contributed to the construction and validation of complex patterns; corroborating practicality, operability and reliability of the proposed product and reducing developing time on representations.

    Original languageEnglish
    Title of host publication2013 Pan American Health Care Exchanges, PAHCE 2013 - Conference, Workshops, and Exhibits. Cooperation / Linkages
    Subtitle of host publicationAn Independent Forum for Patient Care and Technology Support
    StatePublished - 2013
    Event8th Pan American Health Care Exchanges Conference, PAHCE 2013 - Medellin, Colombia
    Duration: 29 Apr 20134 May 2013

    Publication series

    NamePan American Health Care Exchanges, PAHCE
    ISSN (Print)2327-8161
    ISSN (Electronic)2327-817X


    Conference8th Pan American Health Care Exchanges Conference, PAHCE 2013


    • Colorimetry
    • biosignal pattern
    • signal emulator


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