Nova Corporation of Alberta

Tim Harris

Theodor Bardas

Cal Oleksuk

Vaclav Kulle

Gordon Brailean

Jules Eisenbart

Michal Urednicek

A displacement transducer suitable for use in a magnetic bearing measures the flux density between a pair of components and divides a signal indicative of the magnetomotive force between the components by the flux density signal to obtain a signal indicative of displacement.

Magnetic displacement transducer with saturation compensation

An axial magnetic bearing includes a rotor overlying a coil in a stator. A second coil is disposed at a location where it does not exert a significant force on the rotor. The second coil generates a magnetic field to oppose and substantially cancel the stray magnetic field generated by the first coil.

Control of magnetization of a machine with axial magnetic bearings

A magnetic bearing has a number of pole pieces disposed about the circumference of the shaft supported by the bearing. To inhibit magnetic flux migration within the bearing, magnetic barriers of non-magnetic material are interposed between pole pieces at selected locations. Magnetic guides prevent magnetic saturation of the bridging portion of the pole pieces prior to the poles' saturating.

Growing community of inventors

Calgary, Canada

Tim Harris