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Filtering/Voltage Regulation of Pulse Oximeter

Discussion in 'General Electronics Discussion' started by biomed_dude, Dec 1, 2013.

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  1. biomed_dude

    biomed_dude

    15
    0
    Nov 25, 2013
    I am designing a pulse oximeter. I want to be able to amplify my received signal but also filter out all the unnecessary signals. My research shows that I need to focus on signals between 0.5-5Hz in terms of amplification. I will be testing in different mediums, which will affect the strength of my received signal. How can I amplify the signal using the same configuration with all mediums but still fall below the max DAQ input level (5v)?
     
  2. OLIVE2222

    OLIVE2222

    690
    25
    Oct 2, 2011
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