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PPG - photoplethysmography circuit schematics
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leo709



Joined: 18 Oct 2009
Posts: 2
Location: Hong Kong
Post25 Oct 2009 17:28   

PPG circuit schematics
Dear all,

I am doing a project about finding PPG from the finger and I would like to ask if anyone get a PPG circuit design. Thank you for the help.
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KMoffett



Joined: 11 Feb 2008
Posts: 107
Helped: 10
Location: Minneapolis MN USA
Post25 Oct 2009 17:59   

PPG circuit schematics
PPG...photoplethysmograph?

Ken
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Post25 Oct 2009 17:59   

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leo709



Joined: 18 Oct 2009
Posts: 2
Location: Hong Kong
Post26 Oct 2009 5:50   

PPG circuit schematics
yes
Thank you
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KMoffett



Joined: 11 Feb 2008
Posts: 107
Helped: 10
Location: Minneapolis MN USA
Post28 Oct 2009 17:11   

Re: PPG circuit schematics
Google: finger plethysmography circuit schematic
or: IR heart beat circuit schematic

You will find things like this: http://courses.cit.cornell.edu/bionb442/labs/f2007/lab9.html

or this:http://www.8051projects.net/_IR_based_heart_beat_sensor

Ken
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