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You are here: Home / Topics / Problem In desinging Heart Beat sensor

Problem In desinging Heart Beat sensor

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Electronics › Electronics › Problem In desinging Heart Beat sensor

  • This topic has 2 replies, 2 voices, and was last updated 12 years, 3 months ago by Sunil Kumar.
Viewing 3 posts - 1 through 3 (of 3 total)
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    Posts
  • April 2, 2013 at 6:07 pm #4804
    Sunil Kumar
    Participant

    Sir,

     

    I m trying to work on similar project where i need to measure heart beat of the patient using either IR or LDR methods 

     

    i tried alot using 2-3 stages of amplification and low pass filters still was not able to suceed in this project

    i m attaching a circuit diagram, I have tried with NSK LDR based sensor which is not working,

     

    thanx in advance

    with reagards

    Heart beat sensor

    April 11, 2013 at 10:20 am #9460
    Jason Jordon
    Participant

    Hi,

     

    Let’s assume that the coding of the circuit is perfect. You can try attaching 100nF capacitors in parallel to the 680K resistors at the op-amps. Also, try playing with resistances in some circuit simulator.

    April 11, 2013 at 6:02 pm #9466
    Sunil Kumar
    Participant

     

    thanx for ur valuable reply………

    I am trying on with ur correction,

    I’ll let u know if i find solution

     

    with regards,

    Sunil Kumar S

     

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