System for determining the displacement of a movable member
AssigneeKernow Instrument technology Limited
InventorBarry Alfred Morgan
Life of this patent
Estimating the term…
Abstract
A means for simultaneous determination of the radial and angular vectors of rotary motion of a body relative to a single reference axis, by measurement of the common aid differential states of three position detectors and, together with an axial position detector, thus to allow the measurable modulation of magnetic devices such as to provide measurable vector forces to support that body against the vector effects of any external forces that tend to change its position relative to the reference axis, in the absence of any contact between the rotor and the combined system of sensors and magnetic devices.
Claims11
A system for determining the forces acting on a movable member in which the member is suspended out of contact with any stationary component of the system and entirely surrounded by a sample of material to be tested between which and the movable member forces are exchanged in use of the system, the system comprising:
- an outer housing;
- a cylindrical sleeve for retaining the sample of material, said sleeve disposed within said outer housing;
- a rotor forming the movable member and disposed for concentric rotation within the sleeve;
- means for supplying the sample of material to be tested at a pressure to the interior of the sleeve;
- means for supplying a pressurized fluid to the outer housing to surround the sleeve and balance the pressure of the sample of material to be tested within the sleeve;
- magnetic contactless bearings disposed within the housing outside the sleeve to suspend the rotor within the sleeve;
- a stator disposed within the housing and outside the sleeve to impart a turning moment to the rotor;
- and
- means disposed within the housing and outside the sleeve for sensing the radial and angular position of the rotor.
Dependencies are inferred from the claim text.