Patent ID: 9024493
Filing Date: 2015-05-05
Classification: F16C,G01M,G01R,H02K

Abstract:
1. A magnetic bearing, comprising: a stator having a plurality of protrusions extending radially-inward therefrom and electrical windings wound about each protrusion to form a corresponding plurality of bearing coils, the plurality of bearing coils being disposed within an insulative coating adapted to protect against the ingress of liquids; a controller communicable with the electrical windings and configured to control an electrical current in each bearing coil to maintain a rotor centered within the stator; a sensing wire coupled to at least one of the plurality of bearing coils and also disposed within the insulative coating; and a sensing device communicably coupled to the sensing wire and configured monitor a resistance to ground of the sensing wire, wherein the resistance to ground of the sensing wire is indicative of a resistance to ground of the at least one the plurality of bearing coils.