Discrete money testing device
David VanHorn email (remove spam text)
At 11:25 PM 11/16/00 +0200, you wrote:
>Need to do a discrete implementation of a money-testing device (bank notes
>and possibly coins), anyone with some experience, for a starting point?
US paper money dosen't flouresce under UV, and has weakly magnetic ink.
Copier toner is much more magnetic.
UV light can be had from a simple spark, add a filter and you have a UV
A photodiode can look for the flourescence.
Coins might not be worth the trouble (unless it's a vending machine or some
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