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Investigating the Effects of Sensor Mass, Applied Heat, and Applied Pressure on Motion Artifact in Photoplethysmography within a Military Transport Environment

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Despite the wide use of pulse oximetry as a clinical monitoring device for non-invasive measurement of hemoglobin oxygen saturation and heart rate, reports have shown its high sensitivity to motion artifact, rendering the device less accurate and reliable during field applications such as in military environments or ambulatory transport. This paper investigates the effects of sensor weight, localized heating and locally applied pressure on measurement accuracy of a prototype forehead pulse oximeter during a simulated military transport environment. The results yielded that increased sensor weight led to measurement errors and more severe signal corruption, while increased heat (up to 42oC) and pressure (up to 60mmHg) decreased errors and improved signal fidelity.

  • This report represents the work of one or more WPI undergraduate students submitted to the faculty as evidence of completion of a degree requirement. WPI routinely publishes these reports on its website without editorial or peer review.
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  • E-project-050114-123307
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  • 2014
Date created
  • 2014-05-01
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