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Biosensor Array Respiratory Volume/Frequency (view source)
Revision as of 14:20, 15 April 2011
, 14:20, 15 April 2011no edit summary
====== This page is part of the [[Biosensor Array]] Project ======
= Respiratory Volume =
My current approach to this problem is to mount a small muffin fan in place of one of the filter cartridges on a painting respiration mask. I'll read the voltage produced by the fan being spun by the flow of breath. That voltage will be translated to a volume.
An improvement will be to read the voltage in both directions, to measure flow rates of both inhalation and exhalation. I think this will require some additional circuitry, to deal with the negative voltage in one direction.