Designing a position sensor system for Active Magnetic Bearings

In this thesis report, two sensor systems for measuring the position of a levitated spindle are proposed. An off-the-shelf optical sensor is used and the results of the implementation are discussed. Furthermore a capacitive sensor system is designed, consisting of a capacitive ring, sensor plates and signal conditioning. Testing shows both of...

Het ontwerp van elektromagneten, spindel en het frame in een zwevende spindelopstelling

Actieve magnetische lagering (AML) is het in positie houden van een roterende spindel. In deze thesis wordt het ontwerp van enkele onderdelen van een vereenvoudigde AML-opstelling uiteen gezet. Het verschil met een conventionele AML-opstelling is dat de spindel slechts in tweedimensionale richting wordt gestabiliseerd en deze niet roteert. De...

Controller design for a magnetically levtitated spindle system

In this thesis, a complete design strategy is presented for the control of a magnetically levitated spindle. The spindle is levitated by electromagnets located at the spindle ends. Two approaches are used in obtaining a stabilizing control system for this naturally unstable plant. The first approach is to model the spindle as two independently...

Designing a position sensor system for Active Magnetic Bearings

In this thesis report, two sensor systems for measuring the position of a levitated spindle are proposed. An off-the-shelf optical sensor is used and the results of the implementation are discussed. Furthermore a capacitive sensor system is designed, consisting of a capacitive ring, sensor plates and signal conditioning. Testing shows both of...