Awhile back Ro-BOT-X......asked about a 360 degree Potentiometeter. It's been some time since anyone has posted on that
subject so I've made it as a new posting. Hopefully Ro-Bot-X will see it.
Piher North America, makes a Panel Mount Style Sensor that has an accuracy of 0.5% at 360*. The sensor incorporates
technology that is sensitive only to the flux density coplanar with the I.Cs surface. optimizing accuracy for absolute position feeding back from 0 to 360*. The package maintains a true noncontacting air gap between the rotating magnet and the fixed sensing system. PSC-360 / $20 in production Quantities.... notes from EDN June 24th. www.pilher.net I don't know if this would be helpful but it struck me that it might be of interest. Regards, ZEE