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Legacy Personal Blogs TI Hercules LaunchPad Tipo 2: Electromyography Signal DSP part 3
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Engagement
  • Author Author: martinvalencia
  • Date Created: 17 Mar 2015 4:44 PM Date Created
  • Views 431 views
  • Likes 2 likes
  • Comments 2 comments
  • board
  • Medicine
  • signal
  • amplification
  • dsp
  • electromyography
  • sp:texas_instruments
Related
Recommended

TI Hercules LaunchPad Tipo 2: Electromyography Signal DSP part 3

martinvalencia
martinvalencia
17 Mar 2015

TI Hercules LaunchPad Tipo 2: Electromyography Signal DSP part 2

 

Improvements myoelectric sensor circuit is performed.

 

improvements:

 

- No Bandstop filter 60Hz / 50Hz is used

- The bandpass filter is 300Hz to 3KHz

- Filtering is entirely digitally Fourier

- The MCU digital filtering helps in reducing the circuit

 

image

              General circuit implemented

 

image

Amplifiers - MCP6022 / Microchip, do not use a single integrated circuit as an amplifier for reasons of flexibility in design.

 

Final Schematic Circuit

Boardimage

image

Video of the last application made

                                                                               

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Link Schematic:

http://www.mediafire.com/download/ug2qtre3j4q88ma/Mioelectricidad.rar 

 

 

Before Part

TI Hercules LaunchPad Tipo 2: Electromyography Signal DSP part 1

TI Hercules LaunchPad Tipo 2: Electromyography Signal DSP part 2

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Top Comments

  • DAB
    DAB over 8 years ago +1
    Nice update. It looks like you might be adding too much filtering, or there another reason for the delay in change after you begin to move the arm? DAB
  • martinvalencia
    martinvalencia over 8 years ago in reply to DAB +1
    yes, I add a delay in program for the reason that you can see the change of the numbers on the LCD while I record the video for youtube. the time spent for get the signals with ADC, calculation Fourier…
  • martinvalencia
    martinvalencia over 8 years ago in reply to DAB

    yes, I add a delay in program for the reason that you can see the change of the numbers on the LCD while I record the video for youtube.

     

    the time spent for get the signals with ADC, calculation Fourier and digital filtering signals for the arm right and left is in milliseconds, is very fast,

    couldn't see in the video!

     

    Regards

    Martin

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  • DAB
    DAB over 8 years ago

    Nice update.

     

    It looks like you might be adding too much filtering, or there another reason for the delay in change after you begin to move the arm?

     

    DAB

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