179 results about "Levitation" patented technology

The embodiment of the invention provides a flywheel direct-driven cogeneration unit dynamic adjusting system and a control method thereof, in the embodiment of the invention, a magnetic suspension technology is adopted to eliminate friction of a traditional mechanical bearing, and quick starting and stopping of the rotating speed of a flywheel are realized; the high-temperature superconducting magnetic clutch achieves instantaneous mechanical coupling / decoupling of the flywheel and the circulating pump through the zero resistance characteristic, and the response time is short. The frequency modulation requirement of a new energy power grid can be matched, and meanwhile hard constraint of thermal load fluctuation on electric energy output is avoided. The mechanical direct-drive path directly utilizes the kinetic energy of the flywheel to drive the circulating pump, so that a multi-stage energy conversion link in a traditional mode is omitted; the electric adjusting path realizes bidirectional power exchange between the flywheel and a power grid through an energy interface device, and the loss of an inverter is reduced; and the high-temperature superconducting magnetic clutch realizes zero-energy-loss transmission in a coupling state. The magnetic suspension flywheel set adopts a non-contact suspension technology, so that mechanical wear is eliminated; the high-temperature superconducting magnetic clutch achieves non-contact transmission through magnetic coupling, and friction loss is avoided.

The invention discloses an anomaly detection method, device and equipment for a maglev train suspension system and a medium, and relates to the technical field of maglev train detection. The method comprises the following steps: acquiring multi-source operation time sequence data of a maglev train suspension system in real time; carrying out automatic feature extraction on the suspension system through a first neural network model to obtain feature vectors used for representing dynamic response behaviors of the suspension system under different working conditions; inputting the feature vector into a trained second neural network model to obtain an anomaly detection score; the second neural network model is a time sequence neural network and is used for outputting a quantitative score value representing the state abnormity possibility of the suspension system according to the input vector; and when the anomaly detection score indicates that the suspension system is in an abnormal state, performing fault mode classification on the abnormal state according to a preset fault classification rule. According to the technical scheme of the invention, the method breaks through the limitation that a conventional method is insufficient in coupling feature extraction, and achieves the precise anomaly detection and fault classification of the suspension system.

The invention discloses non-contact suspension stirring equipment and a stirring method thereof. The non-contact suspension stirring equipment comprises a basic fixing assembly, a main transmission assembly, a suspension supporting system and a suspension stirring mechanism. Equipment is fixed to the bottom of a liquid container through a flange and an isolation sleeve, after a motor adjusts the rotating speed to a proper stirring speed through a speed reducer, a main shaft of the speed reducer drives an input shaft to rotate through a coupler to drive a driving rotor shell and a magnet in the driving rotor shell to generate a rotating magnetic field, and a suspension stirring mechanism is driven to rotate through magnetic coupling of an inner magnet and an outer magnet. The suspension supporting system adopts the homopolar repulsion principle to enable the stirring mechanism to be suspended, a sliding bearing is formed through a silicon carbide wear-resistant shaft sleeve, and frictional wear is reduced. Non-contact power transmission between the main transmission assembly and the stirring mechanism is achieved, mechanical seal leakage and pollution are avoided, and the device has the advantages of being resistant to abrasion, low in shearing, low in energy consumption, stable in operation and the like, is suitable for occasions needing sterile and low-shearing stirring such as biological medicine, dairy products and beverages and has wide industrial application value.

This utility model belongs to the technical field of vertical wind turbines, specifically a vertical wind turbine with a support assembly. It includes a support rod, a generator body fixedly connected to the top of the support rod, a support frame fixedly connected to the top of the generator body, a first magnetic ring fixedly connected to the inner wall of the support frame, a second magnetic ring at the top of the first magnetic ring, and a connecting shaft fixedly connected to the output end of the generator body to the outer wall of the second magnetic ring. This utility model utilizes rollers; wind power drives the connecting frame to rotate via a wind vane, causing the rollers to roll along the top of the connecting seat, facilitating support of the connecting shaft. The rotation of the connecting frame drives the generator body through the connecting shaft, converting wind energy into electrical energy. Simultaneously, the first and second magnetic rings provide levitation support for the connecting shaft, improving its stability and preventing deformation due to excessive force.

A recursive RISE control method and system for maglev train levitation systems is disclosed. The control method includes: constructing the dynamic equations and voltage balance equations of the electromagnets based on a single-point levitation system, and then constructing a dynamic model of the single-point levitation system accordingly; designing a virtual control law, and then designing a recursive RISE controller based on the backstepping method by combining the dynamic model of the single-point levitation system and the virtual control law; performing stability analysis on the RISE controller to obtain its stability conditions; and, based on satisfying the stability conditions, using the RISE controller to perform real-time control of the levitation gap of the maglev train levitation system. This invention has excellent anti-interference capabilities, reducing the impact of external interference or model uncertainty on levitation accuracy. Furthermore, by handling the nonlinear relationship between voltage and current through the backstepping method, this invention avoids the model mismatch problem caused by linearization.

The invention relates to an airborne laser three-dimensional scanner control method and system and a scanner, and relates to the technical field of scanners, and the method comprises the steps: collecting the environment detection information of a detection range; scanning movement parameters are obtained according to the detection range and the environment detection information; the environment wind speed is called from the environment detection information; obtaining scanning suspension power in combination with the environment wind speed, the scanning movement parameters and the scanning specification; comparing exceeding conditions of the scanning suspension power and the reference suspension power to calculate deviation suspension power; obtaining a escort number and an air curtain parameter based on the deviation suspension power, the scanning movement parameter and the scanning specification; and combining the scanning specification and the scanning movement parameter to obtain a scanning range, acquiring scanning information of the scanning range according to a scanner of the scanning unmanned aerial vehicle to refresh the air curtain parameter, and controlling the escort unmanned aerial vehicle with the escort number to cooperatively fly with the scanning unmanned aerial vehicle according to the air curtain parameter. The method has the effect of improving the scanning accuracy of the airborne laser three-dimensional scanner.

The utility model relates to the technical field of high-altitude platforms, and discloses an arc convolution platform attached to a high-altitude bridge. The keel frame is fixedly connected to the side, provided with the arc-shaped plate, of the horizontal plate, the keel frame comprises a variable-curvature sector ring frame, the variable-curvature sector ring frame comprises an outer arc edge, an inner arc edge and two ring wide edges, the inner arc edge is attached to the outer edge of the arc-shaped plate, and the curvature and the arc length of the outer arc edge are larger than those of the inner arc edge; the tempered glass plate is fixedly installed on the keel frame and comprises an outer arc edge, an inner arc edge and two annular wide edges, the inner arc edge is attached to the inner arc edge, the annular wide edges are longer than the annular wide edges, the curvature of the outer arc edge is the same as that of the outer arc edge, and the arc length of the outer arc edge is larger than that of the outer arc edge; the technical problem that an existing sightseeing platform cannot be used for stage performance and cannot meet the suspension effect is solved.

This invention discloses a fault-tolerant control method for a modular bearingless electrically excited doubly salient pole motor under fault conditions, relating to the field of fault-tolerant control for bearingless electrically excited doubly salient pole motors. This scheme uses a three-phase full-bridge converter to control the switching transistors, enabling the three-phase full-bridge converter to operate alternately as a single-phase bridge inverter circuit under normal and fault conditions of the switching transistors, achieving fault tolerance of the switching transistors in the toroidal DC winding control circuit. Under the condition of open circuit and loss of excitation in the toroidal DC winding, fault-tolerant control of rotor levitation of the modular bearingless electrically excited doubly salient pole motor is achieved through the reuse of the armature winding. The method includes a three-phase full-bridge converter control strategy for fault-tolerant control of the modular bearingless electrically excited doubly salient pole motor and an armature winding reuse control strategy for fault-tolerant control of the modular bearingless electrically excited doubly salient pole motor. This further improves the fault tolerance capability of the modular bearingless electrically excited doubly salient pole motor.

This utility model discloses a packaging mold for a suspended guide coil, relating to the field of mold packaging technology. The device includes a material carrier plate; the material carrier plate has a material-carrying cavity inside, and the top and bottom of the material-carrying cavity are respectively provided with a first mounting limiting groove and a second mounting limiting groove. The first and second mounting limiting grooves are respectively fitted with a first molding component and a second molding component, which support the top and bottom coils. A lead wire support assembly is provided below the bottom coil. The packaging mold for the suspended guide coil of this utility model, through the mutual cooperation of various structures / components in the lead wire support assembly, ensures the parallelism of the three lead wires during the packaging process, effectively avoiding deformation under external force and improving the packaging accuracy of the coil.

The magnetic suspension bracket used after hip replacement comprises an upper structural component, a lower supporting structural component and a supporting body, and the supporting body is placed on the upper structural component. The upper structural component, the supporting body and the lower structural component are combined to form a physical distance, so that the abduction degree of the affected leg is kept, and dislocation of the hip joint caused by adduction of the affected leg is avoided. Magnetic materials are placed on the upper structural component and the lower structural component respectively, the upper structural component and the lower structural component are installed oppositely through homopolar magnetism, suspension force is generated through repulsion of the homopolar magnetism, the two structural components freely rotate in the magnetic suspension state, and the lower limbs of a patient can be placed in a relatively free and relaxed body position when the patient sleeps or has a rest in the side-lying position. The lower structural component is of a hollow structure, and when a user lies on the side, the legs do not bear the gravity of the upper affected legs to affect blood circulation. The magnetic suspension principle is ingeniously utilized, the degree of freedom of movement of the two legs and the sleeping habit of a patient are met to the maximum degree while it is guaranteed that the affected leg keeps a certain abduction degree, experience is improved, and postoperative recovery is facilitated.

The invention relates to a dynamical model construction method of a power generation umbrella ladder, and belongs to the technical field of wind power generation. An umbrella ladder type land-based high-altitude wind power generation technology is adopted, a generator is arranged on the ground, wind energy is captured by an aerial flight assembly to drive a cable to reciprocate and pull a ground generator turntable to rotate, so that electric energy is generated, the three stages are divided into an initial floating stage, an acting stage and a recovery stage, and a kinetic model is constructed for the three stages; and dynamic simulation and analysis are carried out to obtain the generated power and dynamic process of the power generation umbrella ladder for design and stability analysis of a support umbrella ladder power generation system. The device can support the development of umbrella ladder type land-based high-altitude wind power generation.

Angular velocity control device for a spacecraft and corresponding spacecraft. The invention relates to a device (1) for controlling the angular velocity of a decommissioned spacecraft, comprising: - a stator (3) and a rotor (4) movable about an axis (A21) of rotation relative to the stator. The stator (3) comprises an electrically conductive and non-ferromagnetic body (6), while the rotor (4) comprises a magnetized system (7) configured to induce, in the stator (3), braking eddy currents of a relative motion of the rotor (4) with respect to the stator (3); - a levitation magnet (11) intended to cooperate with a magnetic field generated by an external source to induce magnetic levitation of the rotor (4) with respect to the stator (3). The device (1) is made of one or more non-ferromagnetic materials in a zone (11ZI) influenced by the magnetic field generated by the levitation magnet. SAMPLE FIGURE: [Fig.4]

This application discloses a multi-field coupled dynamics calculation method and related products for superconducting maglev trains. The method includes: determining the operating conditions of the superconducting maglev train simulation model based on its operating state information; predicting the aerodynamic forces of the superconducting maglev train simulation model by calling a response surface fitting model corresponding to the operating conditions, and predicting the electromagnetic forces of the superconducting maglev train simulation model by calling an electromagnetic force model corresponding to the operating conditions; superimposing the corresponding components of the aerodynamic forces and electromagnetic forces to obtain the target load, which includes the target magnetic drag, target levitation force, target guiding force, target magnetic drag torque, target levitation torque, and target guiding torque; and inputting the target load as an external load into the multibody dynamics model to obtain the dynamic response results. Thus, the dynamic response results can effectively reflect the actual motion of the superconducting maglev train under complex operating conditions.

This invention discloses a suspended, flexible, deformable, and emotionally interactive robot. A flexible outer shell covers a flexible chassis, and a levitation airbag is installed inside the flexible outer shell. The levitation airbag is filled with buoyancy gas to provide the buoyancy required for the robot's suspension. An interactive control system inside the flexible chassis enables user interaction. A micro-airflow propulsion system is installed at the bottom of the flexible chassis, including multiple airflow generating units. By adjusting the airflow direction and intensity of the airflow generating units, the robot is driven to achieve spatial movement. The charging base station is an external device, and the bottom of the flexible chassis has an energy supply interface corresponding to the charging base station. When docked, the charging base station provides the robot with electrical energy or buoyancy gas. This invention is applicable to fields such as family emotional companionship, health and wellness, creating an intelligent indoor atmosphere, psychological relaxation assistance, and interactive displays in commercial scenarios. Through the organic integration of various systems, the robot achieves aerial suspension, flexible deformation, intelligent emotional interaction, and autonomous refueling.

A levitation and propulsion system for a medium-low-speed maglev vehicle, and a maglev vehicle. The levitation and propulsion system comprises an M-shaped rail, a U-shaped levitation electromagnet, and a traction electric motor stator (500), wherein the M-shaped rail comprises a body (411) and a traction electric motor secondary induction plate (412) fixed to the middle of a lower surface of the body (411), and an upper surface of the body (411) is fixedly connected to a lower surface of a T-shaped track beam (100). The U-shaped levitation electromagnet is located below the M-shaped rail and mounted to the lower part of a levitation frame support arm (220) of a vehicle body. The U-shaped levitation electromagnet comprises a first core (741) and a second core (742) arranged opposite each other, and a magnetic yoke (710) for connecting the first core (741) and the second core (742). The first core (741) and the second core (742) are each wound with an excitation coil (720), a water cooling plate (730) is laid on an inner wall of a U-shaped accommodating cavity formed by the excitation coil (720) and the magnetic yoke (710), and the traction electric motor stator (500) is fixed to the side of the water cooling plate (730) facing away from the magnetic yoke (710) and corresponds in terms of position to the traction electric motor secondary induction plate (412).

The invention provides a high-temperature superconducting maglev vehicle system, and relates to the technical field of maglev vehicles, the high-temperature superconducting maglev vehicle system comprises a track, and the track is provided with a permanent magnet plate; mounting parts are respectively arranged at two ends of the frame in the length direction; the multiple suspension device assemblies are connected with the mounting parts in a one-to-one correspondence mode, and the suspension device assemblies are suitable for rotating in the horizontal direction and / or the vertical direction relative to the mounting parts. According to the high-temperature superconducting magnetic levitation vehicle system, the suspension device assembly is suitable for rotating in the horizontal direction and / or the vertical direction relative to the mounting part, so that the vehicle body has stable suspension force when passing through a horizontal curve, the influence of lateral force is reduced, the safety and comfort of vehicle body driving are improved, and the service life of the vehicle body is prolonged. Meanwhile, when the vehicle body passes through a climbing or downhill road section with a small vertical curve radius, the suspension device assembly can be stably matched with the permanent magnet plate on the track, so that the suspension capacity of the vehicle body passing through the vertical curve radius is improved, and collision between the suspension device assembly and the permanent magnet plate is avoided.

This application relates to the field of vacuum levitation melting technology, specifically, to a vacuum levitation melting casting system and equipment. The system includes a crucible assembly, a mounting cylinder assembly, a coil assembly, and a coil assembly. The mounting cylinder assembly includes a fixed cylinder and a rotating cylinder. The coil assembly includes an induction coil and a coaxial electrode. The coaxial electrode includes an inner conductive cylinder and an outer conductive cylinder. The coil assembly includes a first coil unit and a second coil unit. The first coil unit includes a first conductive disc, a first wire, and a first conductive base. The first wire is curved to apply auxiliary power to the first conductive disc to assist its rotation. The second coil unit includes a second conductive disc, a second wire, and a second conductive base. The second wire is curved to apply auxiliary power to the second conductive disc to assist its rotation. This solves the problem that the starting torque for the tilting action of the crucible assembly in a vacuum environment is large, leading to wear and tear or high cost of the drive assembly.

This invention discloses a magnetically decoupled permanent magnet motor with axial active and radial passive levitation, belonging to the field of magnetic levitation motor technology. The magnetic levitation motor includes an axial stator disk assembly, an axial stator sleeve, and a motor unit. The motor unit has a radial air gap, and an axial air gap exists between the motor unit and the axial stator sleeve. The axial air gap contains axial bias flux and axial control flux, while the radial air gap contains torque flux. The rotor's axial translational degree of freedom is actively controlled, while the four radial degrees of freedom are passively stabilized. The axial levitation force and torque are naturally decoupled and independently controlled. The rotor in the motor unit of this invention adopts a "V"-shaped alternating pole structure with built-in permanent magnets, and the rotor core has air magnetic barriers, which improves the utilization rate of permanent magnet materials and the motor's torque output capability, while reducing costs.

This invention discloses a general construction method for a bearingless magnetic gear double-sided motor with global fundamental harmonic cancellation. The method consists of three levels: preliminary optimization, constraint 1 for the cancellation of armature magnetic field harmonics and permanent magnet harmonics before modulation, and constraint 2 for the cancellation of armature magnetic field harmonics and permanent magnet harmonics after modulation. Preliminary optimization can only reduce the pulsation generated by the fundamental wave of the levitation magnetic field and the stationary wave of the permanent magnet. Based on this, constraint 1 is proposed to reduce the levitation force pulsation generated by the armature magnetic field harmonics and permanent magnet harmonics before modulation, and constraint 2 is proposed to reduce the levitation force pulsation generated by the armature magnetic field harmonics and permanent magnet harmonics after modulation. Through the principle of global fundamental harmonic cancellation, this invention effectively reduces the levitation force pulsation of the bearingless magnetic gear double-sided motor, overcoming the shortcomings of traditional and existing levitation motor construction methods.

This invention discloses an improved integrated winding structure for a bearingless electrically excited doubly salient pole motor, relating to the field of bearingless motor technology. It integrates the levitation winding and excitation winding of a traditional bearingless electrically excited doubly salient pole motor into an integrated levitation winding. A control method is provided to enable the integrated winding configuration of the bearingless electrically excited doubly salient pole motor for power generation and stable levitation. This control method includes a displacement control module, a levitation current calculation module, and a levitation current control module. Stable rotor levitation can be achieved by controlling the levitation winding current. This scheme optimizes the winding arrangement and achieves mutual scheduling of power generation and levitation capabilities through equivalent control. Compared to traditional bearingless doubly salient pole motors, the integrated winding configuration bearingless electrically excited doubly salient pole motor designed in this invention improves the utilization rate of slot space, expands the working range of the bearingless doubly salient pole motor, and its overall operating state is more flexible.

This product is a speaker equipped with wireless communication functions such as Bluetooth®. It can also be used as a decorative item that floats in the air through the magnetic force of a levitation device placed on a desk or other surface.

A linear electrical machine includes: a frame; an array of electromagnets arranged in more than one sets; a reaction platen where excitation of the electromagnets generates levitation and propulsion forces against the at least one reaction platen; and a controller system that has a distributed control configuration to sequentially excite the electromagnets so that each reaction platen is levitated and propelled with at least four degrees of freedom. Each respective coil controller is selectably coupled to electromagnets of multiple sets from the more than one set of electromagnets, each of the multiple sets being at different corresponding predetermined locations in the array of electromagnets from each other set of the multiple sets, the respective coil controller being variably coupled to one set at a time and switched from the one set, at a predetermined location corresponding to the one set, to a different set at a different predetermined location.

A multi-field assisted solidification levitation melting and pulling ingot device includes a melting vessel configured to contain metal so that the metal is heated in the melting vessel, a first electromagnetic generating device configured to surround the melting vessel to heat the metal and levitate the metal within the melting vessel by generating a magnetic field, and an ultrasonic vibration pulling ingot device configured to contact the liquid metal and provide guidance to solid metal solidified from the liquid metal. The ultrasonic vibration pulling ingot device is configured to generate and transmit ultrasonic vibrations to a solidification interface of the metal while guiding the solid metal. A method is also provided.

This invention discloses a feeding device for an electron beam levitation zone furnace, comprising a guide rail and a transmission assembly disposed inside the guide rail. The transmission assembly includes a clamping component with a centering function. The clamping component includes a housing and several sliders disposed on the inner side of the bottom wall of the housing. The sliders are arranged in a circumferential array. A first contact surface is provided on the side of the slider closest to the housing. A pressure cap is provided above the slider for pushing the slider to slide radially. A second contact surface is provided on the inner side of the bottom of the pressure cap. The second contact surface simultaneously contacts the first contact surface of all sliders during the pressing of the pressure cap. Both the first and second contact surfaces are inclined downwards from the inside out. A through hole is provided at the bottom end of the housing for the raw material rod to extend into the clamping component. The feeding device of this invention achieves precise centering by setting a clamping component with a centering function, ensuring that the geometric center of the raw material rod coincides precisely with the feed axis, and is suitable for metal purification and crystal growth in the metallurgical field.

The invention discloses a high-strength and high-conductivity Cu-Zr-Cr alloy and a preparation method thereof, and belongs to the technical field of copper alloy materials. The alloy comprises the following components in percentage by weight: 0.4%-0.6% of Zr, 0.3%-0.5% of Cr and the balance of Cu and inevitable impurities. The preparation method comprises the steps of burdening, vacuum induction electromagnetic suspension smelting and solidification, annealing treatment, cold rolling deformation, aging treatment, ultrasonic vibration synergistic alternating magnetic field treatment under the ultralow temperature condition and low-temperature annealing treatment. According to the invention, by optimizing component design and cooperating with a multi-step process, especially by introducing ultrasonic vibration to cooperate with alternating magnetic field treatment under an ultralow temperature condition, a composite reinforced structure of high-density nano twin crystals and dispersively distributed nano-scale precipitated phases is successfully constructed in the alloy, and cooperative improvement of strength and conductivity is realized. The process route is clear, parameters are controllable, repeatability is good, the problem that strength and conductivity of traditional Cu-Zr alloy are difficult to consider at the same time is solved, and the method is suitable for large-scale preparation and application of high-performance copper alloy.

The application discloses a water collecting frame, a suspension assembly, a membrane assembly and a mold. The water collecting frame mold comprises a first cover plate and a second cover plate. The first cover plate and the second cover plate are mutually covered to form a first cavity. The first cavity is used for injecting a molding material to be roll molded into the water collecting frame. The roll molded water collecting frame has an internal hollow structure, which can form a fluid channel for collecting and transporting filtered water. Thus, the water collecting frame can not only provide a filtering water collection function for a purifying element, but also provide a supporting and fixing function for the purifying element, thereby simplifying the overall setting of the membrane assembly. The membrane assembly is manufactured by using the membrane assembly mold. On one hand, the manufacturing of the above-mentioned membrane assembly can be realized, and the manufacturing process is simplified. On the other hand, the membrane assembly formed by using the roll molding method can not only guarantee the connecting strength, but also avoid the rusting problem of the membrane assembly made of metal.

The invention relates to a fisheye terminal crystal slag prevention precision stamping machining control method. The method comprises the steps that a friction volt potential standard response is established based on a mold of a pre-machined micro-nano structure; a transient friction volt potential is collected in real time by using a suspension ground potential technology; a dynamic differential capacitance spectrum of the lubricating oil film is collected, and the molecular orientation order degree is analyzed; performing time sequence correlation analysis on the potential variation characteristic and the dispersion characteristic, and judging that the phase is a microscopic nucleation stage of the crystal slag when the polarity is detected to be overturned and the order degree is dropped; and the electrostatic minimal quantity lubrication system is triggered, and the charged oil mist is driven by a high-gradient electrostatic field induced by the micro-nano structure to be adsorbed to the friction hot spots in a targeted mode. The method has the advantages that the microcosmic early warning of crystal slag nucleation is realized, and self-aligned targeted lubrication is achieved.

The present application relates to a kind of vacuum tube maglev traffic line alignment design optimization method.The existing design system cannot meet the design requirements of superhigh-speed vacuum tube maglev traffic line.This method establishes vehicle motion force analysis model, obtains the calculation formula of guiding force and levitation force of any alignment;According to the alignment characteristic parameters of vehicle parameters and different alignment, the guiding force and levitation force of different alignment are calculated;Select the alignment combination that changes relatively gently, optimize the alignment characteristic parameters of different alignment;Establish the dynamic interaction model of vehicle and guide rail beam, calculate the dynamic response index of each alignment combination;Compare the dynamic response index and statistical distribution characteristics of each alignment combination, obtain the optimal alignment combination.This method can accurately consider the comfort and safety variation law under superhigh-speed running condition, realize the parameter determination and design scheme optimization of vacuum tube maglev traffic line, and provide protection for the engineering application of superhigh-speed vacuum tube maglev traffic.

An apparatus (1) and a corresponding method for inspecting a web-like or plate-like object (7) having an upper and lower surface are disclosed. To avoid contamination and mechanical damage to the object, while enabling precise optical inspection of the object, the apparatus comprises a vibration generator (30), an optical sensor (11), and, if necessary, corresponding illumination devices (21, 22, 23). The vibration generator forms a planar levitation surface (33) on the side facing the object, and the object is movable over it from a first end (35) to a second end (36) by a transport device (41, 42). The vibration frequency and amplitude of the vibration generator are adjustable so that the object can move while floating substantially parallel to the levitation surface. The vibration generator is formed as a single unit and has one or more penetrating vibration generators. The levitation surface is cut out in such a manner that the object can be directly inspected by an optical sensor located on the side of the vibration generator opposite to the object (34), or by an illumination device (23) located on the side of the vibration generator opposite to the object (34).