Biosensor Array Respiratory Volume/Frequency - Revision history

Mct: add category

2018-04-11T19:21:50Z

add category

← Older revision		Revision as of 19:21, 11 April 2018
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			[[Category:Biosensor Array]]

	= Respiratory Volume =		= Respiratory Volume =

Billmania: details on respiration rates and volumes

2011-04-21T17:23:26Z

details on respiration rates and volumes

← Older revision	Revision as of 17:23, 21 April 2011
(No difference)

Billmania: details on respiration rates and volumes

2011-04-21T17:23:26Z

details on respiration rates and volumes

← Older revision		Revision as of 17:23, 21 April 2011
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	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.		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.		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.

			== Background information ==

			According to [http://en.wikipedia.org/wiki/Lung_volumes wikipedia] the maximum typical total lung capacity is about six liters of air and the typical range of respiration rates is between 12 and 20 breaths per minute. Minimal, at rest or tidal volume per breath is about one half liter of air. Maximum inspiratory capacity appears to be about 4 liters of air.

			So, the sampling rate must be at least once every second, in order to hope to capture the maximum rate of one breath every three seconds. The sensor used to capture this data must be sufficiently sensitive to record a minimal flow of 0.1 liters per second and a maximum flow of 1.4 liters per second. There's also a need for identifying any pauses in between breaths where the subject is neither inhaling nor exhaling.

Billmania at 14:20, 15 April 2011

2011-04-15T14:20:22Z

← Older revision		Revision as of 14:20, 15 April 2011
(No difference)

Billmania at 14:20, 15 April 2011

2011-04-15T14:20:22Z

← Older revision		Revision as of 14:20, 15 April 2011
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			= Respiratory Volume =
	====== This page is part of the [[Biosensor Array]] Project ======

			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.
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			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.

Ehanley: Created page with '====== This page is part of the Biosensor Array Project ====== ----'

2011-04-01T19:50:23Z

Created page with '====== This page is part of the Biosensor Array Project ====== ----'

← Older revision		Revision as of 19:50, 1 April 2011
(No difference)

Ehanley: Created page with '====== This page is part of the Biosensor Array Project ====== ----'

2011-04-01T19:50:23Z

Created page with '====== This page is part of the Biosensor Array Project ====== ----'

New page

====== This page is part of the [[Biosensor Array]] Project ======

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