Abstract: In an approach for detecting one or more applications in a VM, one or more processors establish a time duration. One or more processors detect two or more files, each file in the two or more files having a time stamp time that differs from a last modified time stamp time of at least one other file in the two or more files by no more than the time duration. One or more processors record an identifier for each file of the two or more files, a location, a name, and a last modified time stamp time of each file of the two or more files. One or more processors map the two or more files to an application installed on the VM.

Abstract: According to an embodiment, an electronic device including a camera lens module having a miniaturization and a lightening function, as well as a hand-trembling correction function mounted thereon, is described. The camera lens module may include a base, a first moving part containing a lens assembly and coupled to the base, and a second moving part. The first moving part may be configured to move on a plane perpendicular to the optical axis of the lens assembly. The second moving part may be disposed under the base and configured to move in the optical axis direction of the lens assembly. A variable gap between the first moving part and the second moving part may have a distance that varies based on a movement of the second moving part forward or backward in the optical axis direction.

Abstract: A hybrid magnetic suspension of a rotor (1) having compressor wheels (2, 3) having permanent magnets (104, 114) integral to shrunk fit rings (8, 18) arranged on the rotor (1) in the vicinity of the compressor wheels (2, 3), permanent magnets (124, 134) integral to stationary rings (23, 33) coaxially arranged with the rotor (1) and associated with a resilient material (5, 15) to define a passive radial magnetic bearing, coils (6, 16) associated with magnetic armatures (10, 20) and facing rotor parts (7, 17) being located perpendicularly to the rotor (1), and axial sensors (60, 160) configured for sensing the axial position of the rotor (1) and control means (200) configured for feeding the coils (6, 16) as a function of the outputs of the axial sensors (60, 160) for generating both axial bearing forces and a motor torque and thereby being adapted for defining an axial bearingless motor.

Abstract: A wind turbine having discrete sets of magnets on the turbine support and the turbine rotor, creating repelling forces and spaces therebetween. The reduction of friction between the turbine rotor and the turbine support allows for an increase in energy production and scale of the wind turbines.

Abstract: An exhaust-gas turbocharger (1) with a housing (2), a shaft (3) mounted in the housing (2), a compressor wheel (5) arranged on the shaft (3) and a turbine wheel (4) arranged on the shaft (3), a control element (7), an actuator (8), and a regulating rod (9) which connects the actuator (8) to the control element (7), including an electromagnetic damping arrangement (10) having a magnetic-field-generating element (14), and a first coil (15) with a closed electrical circuit (17), with either the magnetic-field-generating element (14) or the first coil (15) being fastened on the regulating rod (9).

Abstract: A radial magnetic bearing having an inner rotor including a central shaft having a ferromagnetic armature mounted on the shaft and an outer stator providing a plurality of electromagnets including poles made of ferromagnetic material which project radially inwardly towards the rotor is provided. As such, air-gaps (e) are left between end faces of the poles and the ferromagnetic armature, and coils wound around the poles. The poles are extended through outer portions attached to a supporting member. Each pole and the corresponding outer portion are included in an angularly segmented module providing a stack of laminations made of ferromagnetic material. The outer portion defines shoulders with respect to the corresponding pole, the outer portion contacting outer portions of neighboring segmented modules and the outer portions of all segmented modules being assembled by clamping rings, wherein the coils located in free spaces around the poles are mounted in a string.

Abstract: An electromechanical flywheel machine includes a flywheel mass and a motor-generator having a rotor rotatable about a stationary inner stator having stator windings.

Abstract: The present invention relates to a vacuum pump comprising a vacuum pumping mechanism comprising a rotor supported for rotation by a drive shaft, a first bearing assembly for controlling movement of the rotor during rotation of the drive shaft, a back-up bearing assembly for limiting said movement and a sensor for sensing when said movement is limited by the back-up bearing assembly.

Abstract: A vibration sensor includes a mass block supported with the aid of at least one spring in a manner allowing movement relative to a frame in a measuring direction, a displacement of the mass block in the measuring direction relative to the frame being detectable by a position-measuring device. The position-measuring device includes a measuring standard and a scanning head aligned with the measuring standard. One of these two components is secured on the mass block, and the other is secured on the frame.

Abstract: The present invention is such that a main body neither drops out nor is destroyed. A plurality of brackets (4), provided on a side surface of a main body (2) in which a superconducting magnet is mounted internally in a state in which each protrudes therefrom, are each supported by a stand (3) from the bottom, and enclosing members (5) are attached to the side surface of the main body (2) with a prescribed space (a) opened from the bottom of the brackets (4). At least part of the inside surface of an enclosing member (5) surrounds a stand (3) in a non-contact state.

Abstract: A high-stiffness stabilizer/bearings for passive magnetic bearing systems is provide where the key to its operation resides in the fact that when the frequency of variation of the repelling forces of the periodic magnet array is large compared to the reciprocal of the growth time of the unstable motion, the rotating system will feel only the time-averaged value of the force. When the time-averaged value of the force is radially repelling by the choice of the geometry of the periodic magnet array, the Earnshaw-related unstable hit motion that would occur at zero rotational speed is suppressed when the system is rotating at operating speeds.

Abstract: The invention is about a permanent total artificial heart device that is developed for the patients who are at the end-stage heart failure and included in the heart transplantation program, and which is placed into the ventricles of the patient's heart completely or placed surgically into the space obtained when a piece of ventricle is removed. The device employs “direct drive technology,” technically using the advantages of brushless electric motors. Special-designed engines require quite little energy for the pulsatile blood flow produced by stopping and starting synchronously with the ECG signals. It is about a permanent total artificial heart device system that will offer high quality of life for many years to the patients as it protects the heart valves and heart conduction system, has wireless charging and longer battery life.

Abstract: One embodiment describes a rotary machine system, which includes a stator with a first tooth, a second tooth, a third tooth, and a fourth tooth; a first electromagnet that includes a first electromagnet wire wrapped around the second tooth and the third tooth and that generates a first magnetic field to attract a drive shaft; a first integrated position sensor, which includes a first sensor wire that carries a first current wrapped around the first tooth and the second tooth; a second integrated sensor, which includes a second sensor wire that carries a second current wrapped around the third tooth and the fourth tooth; and a controller that determines current position of the drive shaft based at least on change of inductance of the first sensor wire and the second sensor wire, and that instructs the first electromagnet to adjust magnitude of the first magnetic field based at least in part on the current position.

Abstract: Electromechanical systems using magnetic fields to induce eddy currents and generate lift are described. Magnet configurations which can be employed in the systems are illustrated. The magnet configuration can be used to generate lift and/or thrust. Arrangements of hover engines, which can employ the magnet configurations, are described. Further, vehicles, which employ the hover engines and associated hover engines are described.

Abstract: A new non-contacting magnetic “snubber” bearing is provided for application to rotating systems such as vehicular electromechanical battery systems subject to frequent accelerations. The design is such that in the equilibrium position the drag force of the snubber is very small (milliwatts). However in a typical case, if the rotor is displaced by as little as 2 millimeters a large restoring force is generated without any physical contact between the stationary and rotating parts of the snubber bearing.

Abstract: Apparatuses, systems and methods are described for a flywheel system incorporating a rotor made from a high-strength material in an open-core flywheel architecture with a high-temperature superconductive (HTS) bearing technology to achieve the desired high energy density in the flywheel energy storage devices, to obtain superior results and performance, and that eliminates the material growth-matching problem and obviates radial growth and bending mode issues that otherwise occur at various high frequencies and speeds.

Abstract: The present invention generally relates to an apparatus and method for axially supporting a shaft. In one aspect, a magnetic suspension system for supporting a shaft in a housing is provided. The magnetic suspension system includes an array of magnet members disposed between the shaft and the housing. The array of magnet members comprising a first magnet member, a second magnet member, and a third magnet member, wherein the first magnet member and the second magnet member generate a first force that is substantially parallel to a longitudinal axis of the shaft and the second magnet member and the third magnet member generate a second force that is substantially parallel with the longitudinal axis of the shaft The first force and the second force are configured to position the shaft axially within the housing. In another aspect, a method of supporting a shaft along a longitudinal axis of a housing is provided. In a further aspect, a suspension system for supporting a shaft in a housing is provided.

Abstract: Electromechanical systems using magnetic fields to induce eddy currents and generate lift are described. Magnet configurations which can be employed in the systems are illustrated. The magnet configuration can be used to generate lift and/or thrust. Arrangements of hover engines, which can employ the magnet configurations, are described. Further, vehicles, which employ the hover engines and associated hover engines are described.

Abstract: A device for stirring a liquid or a granular material comprising a stirring agitator, a rotating drive shaft for rotating the stirring agitator, a rotating drive shaft for rotating the stirring agitator, a stationary axle extending in an essentially vertical direction about which the stirring agitator is adapted to rotate, and a transfer arrangement for contactless transfer of rotation of the drive shaft to the stirring agitator. The device has a center axis around which the stirring agitator and the drive shaft are adapted to rotate, and means for generating a magnetic force exerting an upwardly directed force component on the stirring agitator. The means for generating a magnetic force comprises a first element arranged in a stirring agitator and a second element associated with the stationary axle. At least one of the first element and the second element comprises a permanent magnet.

Abstract: A compression system may include a compressor having first and second sides separated by a division wall, first and second shafts, and first and second radial bearings. The first and second shafts may be axially connected to each other at respective first ends via a rotor portion of an intermediate radial bearing. The rotor portion may include a plurality of laminations stacked between first and second plates fastened to each other. The first radial bearing may be disposed on a first side of the intermediate radial bearing and may be proximate a second end of the first shaft. The first radial bearing may be configured to support the first shaft. The second radial bearing may be disposed on a second side of the intermediate radial bearing and may be proximate a second end of the second shaft. The second radial bearing may be configured to support the second shaft.

Abstract: A method for synchronously inhibiting subcritical vibrations of magnetic levitation molecular pump rotor, by use of synchronously sampling signals of subcritical vibrations of the rotor generated after the rotor of the magnetic levitation molecular pump touches down so as to obtain the amplitude and the phase of subcritical vibrations of the rotor, based on which a compensation force is output for inhibiting subcritical vibrations of the rotor. Through using the present method, an accurate synchronous for signals of subcritical vibrations and fast inhibition for subcritical vibrations of the rotor is achieved.

Abstract: Embodiments of the invention are directed to bearing assemblies configured to effectively provide heat distribution from and/or heat dissipation for bearing element, bearing apparatuses including such bearing assemblies, and methods of operating such bearing assemblies and apparatuses. In an embodiment, a bearing assembly includes a plurality of superhard bearing elements distributed about an axis. Each superhard bearing element of the plurality of superhard bearing elements has a superhard material including a superhard surface. Additionally, a support ring structure that includes a support ring that supports the plurality of superhard bearing elements and a thermally-conductive structure in thermal communication with the superhard table of each of the plurality of superhard bearing elements. The thermally-conductive structure has a higher thermal conductivity than the support ring of the support ring structure.

Abstract: An axial magnetic bearing comprising a rotor stop disc which is mounted perpendicularly and integral with a rotating shaft and a coaxially stator assembly and comprising at least one stator element of magnetic material having an inner face parallel to a side of the rotor stop disc and separated from it by an air gap, the at least one stator element comprising two annular coils and housed in two annular notches formed continuously in the magnetic material of the at least one stator element and opening to the side of the rotor stop disc, the two annular notches being separated by an annular tooth, rolled in series and are formed by a single continuous wire, a bridging recess being cut in the annular tooth for receiving a massive insert part that extends the annular tooth without locally modifying the air gap with the rotor stop disc.

Abstract: The present disclosure provides, in one embodiment, a unique gas turbine engine. Other embodiments include unique gas turbine engines, and unique active balancing systems; as well as apparatuses, systems, devices, hardware, methods, and combinations for gas turbine engines and active balancing systems. Further embodiments, forms, features, aspects, benefits, and advantages of the present application will become apparent from the description and figures provided herewith.

Abstract: A blood pump having a rotor and a stator, in which the rotor has a filled core channel and a plurality of filled radial channels configured to maximize the communication of magnetic flux.

Abstract: Driver for a turbine generator aided by magnetic levitation to enhance support without increasing friction. In one aspect, an apparatus includes an outer circular structure with a magnetic rail structure, an inner circular structure with a second magnetic rail structure, wherein the circular structures are magnetically levitated and freely rotational with respect to each other. The inner circular structure being mechanically coupled to a generator rotor so when the inner circular structure rotates, it imparts a rotational force on the generator rotor. In another aspect, the inner circular structure is rigidly fixed to an armature of a generator. In another aspect, the mechanical coupling comprises a plurality of turbine blades and/or a plurality of gear surfaces.

Abstract: A method of manufacturing an electrical machine includes selecting a desired threshold control current, selecting dimensions to modify stator teeth of a magnetic bearing based on the desired threshold control current, and modifying the stator teeth using the selected dimensions. A method of producing a rotating machine includes selecting an operating point of a magnetic bearing of the rotating machine, and shaping at least some stator teeth of the magnetic bearing to generate increased force at control currents above the control current at the selected operating point.

Abstract: The device for pivoting an arbor of a rotating member, on a determined pivot axis, inside a timepiece movement includes at least one magnetic bearing including a magnet which exerts a force of attraction on a pivot made of magnetic material, of the arbor, and an endstone arranged between the magnet and the pivot, the endstone being formed of a material having a hardness greater than 500 HV and a friction coefficient less than or substantially equal to 0.1 with the material of which the pivot is made. The material forming the endstone has a high magnetic permeability and the endstone has, in cross-section to the pivot axis, smaller dimensions than those of the magnet, said endstone being arranged in the timepiece movement to be centred on the determined pivot axis.

Abstract: The present invention relates to a rim driven propeller unit for a vessel, where a number of permanent magnets (4) are arranged round the propeller unit's rotatable rotor housing (1), comprising a number of propeller blades (3), and a number of permanent magnets round the propeller unit's external, stationary casing (2) housing the rotatable rotor housing, where the permanent magnets round parts of the rotatable rotor housing and the external, stationary casing's circumference are provided located above one another with like polarity, while other parts of the rotatable rotor housing and the external, stationary casing are provided located facing one another with opposite polarity, whereby the rotor housing and the stationary casing are repelled by and attracted to one another respectively, thereby being prevented from coming into contact with one another.

Abstract: A system comprising a first wind turbine structure and a second wind turbine structure, wherein the first wind turbine structure and the second wind turbine structure are rotatable with respect to each other is provided. A safety bearing element is mounted to the first wind turbine structure such that the second wind turbine structure is in slideable contact with a contact surface of the safety bearing element if a distance between the first wind turbine structure and the second wind turbine structure is reduced below a predetermined reference value. The safety bearing element comprises an electrical indicating circuitry with an indicating conductor, wherein the indicating circuitry is connectable to a wear controller system such that a signal is generatable by the indicating circuitry and transmitted to the wear controller system until the indicating conductor is damaged due to the slideable contact of the second wind turbine structure with the safety bearing element.

Abstract: Aspects of the disclosure are directed to interference cancellation and wireless communication. A method of performing analog interference cancellation in a wireless communications device having a transmitter and a receiver includes receiving a reference signal representative of an interfering signal transmitted by the transmitter, selecting a first target interference type from one of a plurality of interference types affecting a an RF signal received by the receiver, configuring a first filter of an interference cancellation circuit using a coefficient computed based on the first target interference type, and cancelling interference in the RF signal using an output of the first filter. Coefficient computation may be performed in a switched manner between analog and digital domain, simultaneously in multiple domains, or in a cascaded manner that provides digital interference cancellation.

Abstract: The invention provides a way re-center a rotor's central longitudinal rotational axis with a desired system longitudinal axis. A pair of planar semicircular permanent magnets are pieced together to form a circle. The flux from each magnet is pointed in in opposite directions that are both parallel with the rotational axis. A stationary shorted circular winding the plane of which is perpendicular to the system longitudinal axis and the center of curvature of the circular winding is positioned on the system longitudinal axis. Upon rotation of the rotor, when a transverse displacement of the rotational axis occurs relative to the system longitudinal axis, the winding will experience a time-varying magnetic flux such that an alternating current that is proportional to the displacement will flow in the winding. Such time-varying magnetic flux will provide a force that will bring the rotor back to its centered position about the desired axis.

Abstract: A command procedure for an active magnetic bearing, the magnetic bearing comprising a series of electromagnetic actuators forming a stator, each actuator being suitable for exerting radial force on the rotor, a ferromagnetic body forming a rotor, kept free of contact between the electromagnetic actuators and suitable for being set in rotation around an axis of rotation, the rotor being suitable to undergo precession movements in particular. Sensors suitable for detecting radial displacements of the rotor and issuing position signals representative of the radial position of the rotor in relation to the actuators. Calculation of at least one actuator command signal the calculation of the command signal consisting of the application of at least one transfer function to the position signals, the transfer function containing a number of correction coefficients.

Abstract: A machine is provided including magnetic radial bearings to magnetically levitate a rotating shaft. Each of the magnetic radial bearings includes stator magnet groups. Each of the stator magnet groups includes stator magnets. Each of the stator magnet groups is operatively configured to fully support the rotating shaft independently of each other stator magnet group of the stator magnet groups so that the machine continues to operate with the failure of one or more components of the machine.

Abstract: Disclosed is a magnet in a high vacuum tube levitated by at least one magnet outside the tube and stabilized by at least one diamagnet inside or outside the tube. The magnet may have a rotational symmetry axis aligned with the magnetization axis and the diamagnet may be laminated to minimize eddy-current damping. The magnet or magnets outside the tube are used to control the levitation position and to temporarily bring the magnet into contact with a part of the tube structure. Contact is used in combination with a rotor to initiate the spinning motion of the magnet. The passively spinning and levitating magnet will continue to spin for an unusually long period of time due to the lack of contact and extremely low air drag and eddy-current friction.

Abstract: Radial poles are placed around a radial actuator target mounted on a body. The poles are separated from a cylindrical surface of the target by radial gaps and adapted to communicate a magnetic flux with it. The radial poles are equipped with electrical control windings and magnetically coupled to form magnetic control circuits. A flux return pole is adjacent to the body, separated from it by an air gap and adapted to communicate a magnetic flux with the radial actuator target. A permanent magnet generates a magnetic bias flux in the magnetic bias circuit formed by the radial actuator target, the radial poles and the magnetic flux return pole. A radial force is exerted on the actuator when the control windings are energized with a current. A Hall effect sensor measures bias magnetic field in the air gap between the magnetic flux return pole and the body.

Abstract: A method and a system for acquiring a vibratory signal for troubleshooting a rotary motor, including: an input receiving a temporal vibratory signal of the motor and at least one current rotational speed of at least one shaft of the motor, and a sampling mechanism sampling the temporal vibratory signal in real time with at least one sampling signal synchronised with the at least one current rotational speed thus generating a corresponding synchronous vibratory signal.

Abstract: A diagnostic scanning apparatus includes a hollow rotor sized to receive a patient. First and second flanges are connected to and extend radially outward from the rotor in a spaced-apart relationship, each of the first and second flanges including, at least in part, a magnetically-permeable material. A radiation source is affixed to the first flange and/or the rotor. A first axial actuator generates a variable magnetic field, is fixedly disposed adjacent to the first flange and can magnetically pull the first flange in a first axial direction of the rotor. A second axial actuator generates a variable magnetic field, is fixedly disposed adjacent to the second flange and can magnetically pull the second flange in a second axial direction of the rotor that is opposite of the first axial direction. The first and second axial actuators are both at least substantially disposed between the first and second flanges.

Abstract: An axial bearing device includes an annular electrical sheet arrangement having individual sheets which protrude radially outward. In addition, an electrical coil is provided in the axial bearing device and is inserted into the electrical sheet arrangement to generate a magnetic field in the electrical sheet arrangement. The electric sheet arrangement includes at least two concentric electrical sheet rings. All adjacent electrical sheets of each electrical sheet ring substantially abut at the inner circumference of the respective electrical sheet ring.

Abstract: A vacuum pump including a pump main unit and a control unit is disclosed. The control unit includes a substrate having electronic elements mounted thereon and terminal pins soldered to the substrate at a first end edge of the substrate. The substrate is mounted to a plate via an attachment near a second end edge opposing the first end edge and the plate is mounted to the pump main unit. The terminal pins extend through the plate. Upon linear thermal expansion of the terminal pins, by reason of the location of the terminal pins near the first end edge and the attachment near the second end edge, stresses in the soldered pin connections are reduced. A molding material having a Shore hardness of less than 50, is molded around the electronic elements on the substrate in one embodiment.

Abstract: At least one embodiment of the invention relates to an energy storage device comprising a housing, at least one flywheel disposed in the housing, and at least one stabilizing element disposed in the housing configured to stabilize the flywheel. There can be at least one cooling element for cooling a region interior of the housing to a preset temperature. In at least one embodiment, the stabilizing element comprises a magnet. In at least one embodiment the stabilizing element can be orientated at a position offset from a horizontal axis. In at least one embodiment the stabilizing element is orientated at a position offset from a vertical axis In at least one embodiment the stabilizing element is orientated at a position between a horizontal axis and a vertical axis.

Abstract: A motor bearing for an electric submersible motor is described. An electric submersible motor includes a rotatable motor shaft extending longitudinally through a submersible motor, a bearing sleeve secured to the rotatable motor shaft in between two adjacent rotor sections, a motor bearing radially outward from the bearing sleeve and pressed against a stator bore, wherein the motor bearing comprises a series of magnets dispersed around an outer diameter of the motor bearing, and an insulation layer covering a surface of each magnet of the series of magnets, wherein the insulation layer faces the stator bore. A motor bearing includes a series of recessions dispersed around an outer axial surface of a motor bearing, a magnet inset in each recession of the series of recessions, and an insulation layer coating a surface of each of the magnets.

Abstract: The present invention provides a rotary blood pump with both an attractive magnetic axial bearing and a hydrodynamic bearing. In one embodiment according to the present invention, a rotary pump includes an impeller assembly supported within a pump housing assembly by a magnetic axial bearing and a hydrodynamic bearing. The magnetic axial bearing includes at least two magnets oriented to attract each other. One magnet is positioned in the spindle of the pump housing while the other is disposed within the rotor assembly, proximate to the spindle. In this respect, the two magnets create an attractive axial force that at least partially maintains the relative axial position of the rotor assembly. The hydrodynamic bearing is formed between sloping surfaces that form tight clearances below the rotor assembly.

Abstract: Flywheel systems are disclosed that provide increased energy density and operational effectiveness. A first bearingless motor and a second bearingless motor may be configured to simultaneously suspend the central rotor in a radial direction and to rotate the central rotor. However, certain implementations may have one motor or more than two motors, depending on the design. A plurality of the flywheel systems may be collectively controlled to perform community energy storage with higher storage capacities than individual flywheel systems.

Abstract: An exposure apparatus including a projection system configured to project a plurality of radiation beams onto a target; a movable frame that is at least rotatable around an axis; and an actuator system configured to displace the movable frame to an axis away from an axis corresponding to the geometric center of the movable frame and to cause the frame to rotate around an axis through the center of mass of the frame.

Abstract: An image decoding apparatus includes a unit configured to set an unreferenced region depending on whether information concerning a horizontal direction is defined, out of information indicating the unreferenced region. The image decoding apparatus further includes a unit configured to decode a flag that is to be set depending on whether a loop filter is related as information indicating the unreferenced region.

Abstract: A thrust system for a watercraft including a propeller shaft, a propeller shaft housing and a hydraulic thrust bearing assembly. The propeller shaft has an enlarged diameter shoulder, and the housing is positioned around and allows axial movement of the propeller shaft. The hydraulic thrust bearing assembly is axially constrained between the propeller shaft shoulder and the housing. The hydraulic thrust bearing assembly includes an annular cylinder, an annular piston, at least one oil feed passage and at least one oil bleed port. The annular cylinder surrounds the propeller shaft and has a circular groove. The annular piston surrounds the propeller shaft and is movably positioned within the circular groove of the annular cylinder forming a pressurized chamber. Each oil feed passage and oil bleed port allows oil to be communicated relative to the pressurized chamber. The hydraulic pressure developed in the pressurized chamber is proportional to thrust.

Abstract: A bearing includes at least an inner ring, an outer ring, and rolling bodies arranged between the inner and outer rings, one of the rings being designed to turn and the fixed, and one of the rings including an inducing element is designed to generate an inducing electromagnetic field, the other of the rings including an electrical circuit in which an induced current is generated when one of the rings turns in relation to the other of the rings, and when the inducing element generates an inducing electromagnetic field, wherein the inducing element designed to generate an inducing electromagnetic field includes a module having a piezoelectric effect and/or a module having a thermoelectric effect.

Abstract: Electrostatic stabilizers are provided for passive bearing systems composed of annular magnets having a net positive stiffness against radial displacements and that have a negative stiffness for vertical displacements, resulting in a vertical instability. Further embodiments are shown of a radial electrostatic stabilizer geometry (using circuitry similar to that employed in the vertical stabilizer). This version is suitable for stabilizing radial (lateral) displacements of a rotor that is levitated by annular permanent magnets that are stable against vertical displacements but are unstable against radial displacements.

Abstract: A bearing monitoring system is provided including one or more bearings within a flow passage and a working fluid passing over at least one surface of the bearings. A first thermocouple is located in the flow passage upstream relative to the one or more bearings and configured to measure a first temperature of the working fluid and a second thermocouple is located in the flow passage downstream relative to the one or more bearings and configured to measure a second temperature of the working fluid. The system further includes a control device in communication with the first thermocouple and the second thermocouple, and configured to compute a temperature gradient across the one or more bearings from the first temperature and the second temperature, compare the temperature gradient against a known value, and if the temperature gradient exceeds the known value, the control device is configured to provide an alert.