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[on:]

hi All,

Please check out the punch acceleration sensor i've built to measure a strength of the punch as it lands on the target. ADXL193 250g single axis accelerometer is used to measure acceleration which is then sampled using AD7680 16bit A/D converter. Arduino computes maximum acceleration in G and displays it on a 7 segment LED display:

http://abieneman.wordpress.com/2010/04/04/punch-acceleration-sensor/



[media]http://www.youtube.com/v/aISsu5k85mQ[/media]

Detailed description of results and hardware as well as drawings and Eagle files are available. Software description coming soon.

Regards,

Aleksey Bieneman

[Reply #1 on:]

This is a very cool project, and nicely detailed. I really liked the explanation for the use of the 16bit a/d converter, and the graphs really explain it all.

[Reply #2 on:]

Thank you very much. I am trying to pass on whatever knowledge i acquired so some one would not get stuck on things i got stuck on.

Anyhow, the "Part 3 - Software" has been posted as well:

http://abieneman.wordpress.com/2010/04/06/punch-acceleration-sensor-part-3/

Aleksey

[Reply #3 on:]

Wow. This is awesome! Keep up the good work!

[Reply #4 on:]

I have added a follow up post addressing noise, force vs momentum and other topics:

http://abieneman.wordpress.com/2010/04/26/punch-acceleration-sensor-followup/

Aleksey