Just to add more context. I am putting together a machine that bends tungsten wires into a specific shape. The wire is dispensed from a 5-10m roll. I am looking for a non contact sensor that would let me know when the wire is depleted.
Unfortunately due to safety reasons( and for the end application of the wire) as the machine is half way through with allowances for minor mods, I won't be able to apply any kind of voltage into it.
Would be glad to provide further information if need be. Thanks guys.
