Electromagnetic sensor to signature of the eddy currents. Like the kind in a coin discriminator,
but you can do why more with the data by bring it into a neural network!
Line camera (cheaper, faster, but less DIY)
I’m sure someone will work with:
Coin rolling acceleration (I did a few years ago, it does correlate with coin/metal type.)
A microphone
Other light spectrums
I really hope this project has enough interest to demonstrate adding an XRF module to the system to exactly determine metal elements present. Please contact me if you have one I can borrow or you’re a XRF manufacturer and you wish to demonstrate you products. I know people would love to see this for coins, but I really want to try sorting small zorba metal scrap and shredded e-waste. Zorba is mostly from shredded cards and it too has coins!
The two that make the most sense:
I’m sure someone will work with:
I really hope this project has enough interest to demonstrate adding an XRF module to the system to exactly determine metal elements present. Please contact me if you have one I can borrow or you’re a XRF manufacturer and you wish to demonstrate you products. I know people would love to see this for coins, but I really want to try sorting small zorba metal scrap and shredded e-waste. Zorba is mostly from shredded cards and it too has coins!