Stoichkov

thanks the electric light(opto-electronics) is a good idea but the thing is i did not want to move the tray in which the glasses would be placed.I wanted the spigot to be the one that move to the empty glasses.Why? because if i am to move the tray, i will have the glasses falling all over the place....

Hie i am doing my final project, and i will be working on an Automatic glass filling system for champagne.This will involve emptying the champagne into 4-5 glasses and having them ready for delivery to the respective tables. I am trying to find out if anyone has an idea of how i can sense the presence of the champagne glass and be able to have the system to tell if the glasses are empty or not?Any ideas??