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Sci Fi Your Pi
Blog Meditech: HeartBeat (photoplethysmograph) probe prototype
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  • Author Author: balearicdynamics
  • Date Created: 17 Jun 2015 1:50 PM Date Created
  • Views 518 views
  • Likes 1 like
  • Comments 6 comments
  • heartbeat
  • meditech_project
  • raspberry-pi
  • probe
  • heart_rate_monitor
  • sci_fi_your_pi
  • sensor
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Meditech: HeartBeat (photoplethysmograph) probe prototype

balearicdynamics
balearicdynamics
17 Jun 2015

The following images shows the steps of the creation of the Meditech HeartBeat probe  electronics.

 

Schematics and layout

imageimage

Above: schematics and layout of the probe.

The right side block (in the layout image), corresponding to the bottom right part of the schematic is a separate component; it is a small adapter to plug in the BitScope inputs for data acquisition from the various Meditech probes that plan to use analog and logic data prodcessing.

The two images below shows the resulting milled PCB (both sides)

imageimage

 

Circuit assembly and connections

The images below shows the BitScope connector and how it will fit in the device.

imageimage

Below: the HearBeat circuit completed connected to the BitScope via the adaptor connector.

The led and sensor connector will be fices inside the working panel of the Meditech box.

image

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  • balearicdynamics
    balearicdynamics over 10 years ago in reply to amgalbu

    hi Ambrogio, sorry for the delay

    ... a generic explanation of the two main stagrs for filtering and amplifying is in the cir uit preview in the previous post. I got inspiration from diifferent sources trying to get the best from everyone.

     

    enrico

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  • balearicdynamics
    balearicdynamics over 10 years ago in reply to ravi_butani

    Hello Ravi, yes I use the mill machine for all the work, both pcb and boxes etc.

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  • ravi_butani
    ravi_butani over 10 years ago

    Nice work...

    It looks like, you are using cnc router for pcb etching...

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  • amgalbu
    amgalbu over 10 years ago

    Nice work

    You are implementing a two-stages amplifier? What are the gains of each stage?

     

    Cheers

    Ambrogio

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  • balearicdynamics
    balearicdynamics over 10 years ago in reply to DAB

    Thanks DAB image

    Enrico

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