Pressure Mat Demo (Velostat Matrix)

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Күн бұрын

Пікірлер: 8

@brandontay2053 10 ай бұрын

Hi there, this is really impressive! I am thinking of building something similar, but I have several questions 1. Did you use copper tape stuck to the back of the Velostat mat to create a sensor array? 2. Did you measure the sensor input at each "cell" of the sheet using ADCs and multiplexers? 3. What software did you use to generate this real time colour map? Your help would be greatly appreciated!

@timhanrahan1503 3 ай бұрын

Sorry for the late reply, I dont seem to get notifications. 1. Not quite, we stuck the tape sticky-side down to the backing, so the sheet looked like clean tape with sticky gaps when presented to the velostat. This was to work around the tape's adhesive deforming shown here (MarcoRes pt II 1:20), but thinking about it now I think it needs some depper thought on how forces are distributed. kzbin.info/www/bejne/Zqazi6qDnJp1ac0si=bzrLj9-M49vmv43C&t=79 2. Yes, I think this is described pretty well in the google drive. One improvement would be autocalibration and doing some sort of software ghosting correction (it's in some papers) 3. It wasn't done by me but I'd say easy to do by reading serial data and visualising a heatmap with a python script.

@Jandodev 2 жыл бұрын

This is really cool I need to make something similar for a project!

@timhanrahan1503 Жыл бұрын

Yeah that's the reason I put it up even though it's a rough video. I remember when researching there isn't too much out there so I hope it helps. Good luck!

@ashwin372 Жыл бұрын

how did you use velostat to get such good results? can you please share what is under the black mat that you were sitting? did you use copper tape ? if you stick velostat is the value repeatability?

@timhanrahan1503 3 ай бұрын

Thanks :) Theres a write up in the drive, I can't remember what the clear backing was but shouldn't matter too much. Interesting last question, we assume so but I can't remember coming across any testing.