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 and proceedingspeer-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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