14 results about "Field shaping" patented technology

Disclosed herein is a stellarator comprising two sets of coils, namely a set of encircling coils which encircle the plasma axis, and a set of shaping coils which do not encircle any other coil or the plasma. In some embodiments, the encircling coils include a structural element to maintain their shape under magnetic forces. In some embodiments, the shaping coils are mounted onto one or more structural elements which, together with the shaping coils, constitute a field shaping unit. Also disclosed is a controller which may modify the electrical current flowing in one or more subsets of the coils in order to achieve target plasma parameters. Also disclosed is a method of designing a set of shaping coils by discretizing a surface dipole or current potential distribution.

A high-voltage generator device is provided comprising an electric field shaper for shaping an electric field, in particular for a high-voltage generator. The electric field shaper comprising at least one field shaping unit which has a field shaping element. The field shaping element comprises a non-conductive body, in particular a plastic body, and an electrically conductive coating that is arranged on the non-conductive body.

The invention provides a pulse laser-assisted nondestructive transfer method for a fine structure of a flexible substrate. The method comprises the following steps: firstly, preparing the fine structure to be transferred on a hard substrate; then, the binding force between the to-be-transferred structure and the flexible substrate is adjusted through interface modification; then irradiating the hard substrate-to-be-transferred fine structure interface by using pulse laser subjected to spatial light field shaping, and mildly weakening the binding force between the to-be-transferred structure and the hard substrate under the condition that the to-be-transferred structure is not damaged by ablation or decomposition; and finally, the flexible film is uncovered, and the to-be-transferred structure in the irradiated area is transferred to the flexible film without damage. According to the method, a complex technological process in a wet transfer method and a sacrificial layer transfer method is avoided, no obvious thermal, mechanical or chemical damage is caused to the structure, the structures such as a multi-layer composite film and an ultrathin film with a large width-to-thickness ratio can be selectively transferred to a flexible film in one step with high technological flexibility, and the transfer efficiency and the material adaptability are effectively improved.

The application discloses a self-leveling air gap equalization and multi-cavity stable voltage ultra-low disturbance air cavity system and a control method, and belongs to the field of aircraft control and ground simulation. The system comprises an outer shaft air floating sleeve, an inner shaft movement sleeve, a lifting device, a surrounding air gap monitoring device, a distributed air pressure sensor array and an air path control board card; an automatic air gap pressure difference elimination is realized by adopting a surrounding communication air path, and a partitioned air supply and a feedforward pressure field shaping are matched, and a constant air cavity volume is maintained by the synchronous lifting device to weaken the hysteresis effect. The control method relies on a neural network offline training to build a compensation model, and realizes closed loop stable voltage and disturbance suppression by adopting a feedforward neural backstepping control. The application can effectively improve the precision, stability and dynamic response of vertical microgravity simulation, and solves the multi-source disturbance problem caused by air gap loss, air supply and exhaust coupling and hysteresis feedback of a traditional pneumatic compensation system.

The application provides a kind of laser equipment, laser equipment includes first waveguide, second waveguide group and laser, second waveguide group includes third waveguide and fourth waveguide respectively arranged in the two sides of first waveguide;Laser includes: first ridge structure and second ridge structure;First ridge structure is excited to emit laser by applying driving current to first ridge structure, and the excitation mode of laser is single lobe far field base transverse mode;First ridge structure is excited to emit laser by applying excitation to first ridge structure and second ridge structure, and the excitation mode of laser is double lobe far field single high order mode.In this way, the laser can be switched between single lobe far field base transverse mode and double lobe far field single high order mode by changing driving current, so as to control the far field shape of laser, quickly switch single lobe far field and double lobe far field, which can ensure high power output of laser and narrow linewidth characteristics of laser.

A method may include receiving, using a processing unit, a request to calculate an estimated duration of an agricultural job, the request including an agricultural job identifier, issuing, using the processing unit, a data retrieval command using the agricultural job identifier, receiving field characteristics associated with a field, the field characteristics including a field shape value and an area of the field, encoding, using the processing unit, the field characteristics into a data structure configured to be input into a job duration machine learning model, executing, using the processing unit, the job duration machine learning model using the data structure, after executing the job duration machine learning model, accessing an output of the job duration machine learning model, the output associated with the estimated duration of the agricultural job, and transmitting, using the processing unit, the estimated duration and the job identifier to an agricultural job scheduling system.

This invention discloses a self-leveling air gap equalization and multi-cavity pressure-stabilized ultra-low disturbance air cavity system and control method, belonging to the field of aircraft control and ground simulation. The system includes an outer axis air-bearing sleeve, an inner axis moving sleeve, a lifting device, a surrounding air gap monitoring device, a distributed air pressure sensor array, and an air path control board. A surrounding interconnected air path is used to automatically eliminate air gap pressure difference. Combined with zoned air supply and feedforward pressure field shaping, a synchronous lifting device maintains a constant air cavity volume to reduce hysteresis effects. The control method relies on offline training of a neural network to construct a compensation model and uses feedforward neural backstepping control to achieve closed-loop pressure stabilization and disturbance suppression. This invention can effectively improve the accuracy, stability, and dynamic response of vertical microgravity simulation, solving the multi-source disturbance problems caused by air gap imbalance, supply and exhaust coupling, and hysteresis feedback in traditional aerodynamic compensation systems.

The present disclosure relates to a star imitator or an assembly comprising a star imitator that includes a removable and / or replaceable component, such as a removable field shaping unit and / or a removable shaping coil. In some embodiments, the star imitator of the present disclosure includes a toroidal sector, the toroidal sector including one or more removable field shaping units.

This utility model relates to an antenna ring for a microwave plasma deposition apparatus, comprising a ring body located between a resonant waveguide cavity and a reaction chamber, and an annular mounting bracket and a pressure ring that mate with an aluminum ring. The ring body is a conductive and corrosion-resistant metal structure, with its circumferentially continuous mesh satisfying the following: mesh diameter 0.5–6 mm (preferably 1–5 mm), aperture ratio 40%–80%, wire diameter 0.05–1.0 mm (preferably 0.1–0.8 mm), and mesh shape circular or polygonal. The ring body is held between the annular mounting bracket and the aluminum ring by the pressure ring and electrically connected to the cavity; a solid metal reflective strip (a hole-free area, 3–20 mm wide) is provided on the outer edge of the ring to enhance microwave reflection and field shaping; the axial distance between the ring and the quartz isolation plate is 2–20 mm. This structure achieves multi-point microwave radiation, uniform reflection, and Faraday shielding, and is easy to disassemble, maintain, and reliably grounded, making it suitable for large-area thin-film deposition equipment with substrates ≥8 inches.

Disclosed herein is a stellarator comprising two sets of coils, namely a set of encircling coils which encircle the plasma axis, and a set of shaping coils which do not encircle any other coil or the plasma. In some embodiments, the encircling coils include a structural element to maintain their shape under magnetic forces. In some embodiments, the shaping coils are mounted onto one or more structural elements which, together with the shaping coils, constitute a field shaping unit. Also disclosed is a controller which may modify the electrical current flowing in one or more subsets of the coils in order to achieve target plasma parameters. Also disclosed is a method of designing a set of shaping coils by discretizing a surface dipole or current potential distribution.

High-voltage connectors and cathode assemblies for x-ray tubes are disclosed. A cathode assembly for an x-ray tube can include a high-voltage shield surrounding a cathode structure and a ceramic plate. The ceramic plate can include a central recess to receive the cathode structure and a vacuum side defining a V-shaped profile radially extending from the central recess, the central recess being defined by a first ridge of the V-shaped profile. The cathode assembly can be configured to limit an electric field at a shortest distance between the vacuum side and the high-voltage shield to 13 MV / m.

The present application relates to the technical field of power electronic and energy storage system control, especially to a WIPI wireless power dynamic balancing method for energy storage system grid connection, comprising the following steps: constructing a fractional order digital twin model to predict the state of charge and temperature rise of the module; based on the prediction results, using a three-layer GraphSAGE and a twenty-qubit variational quantum optimizer to obtain a demand matrix and a loss matrix respectively, and fusing them into a power coupling target according to a preset weight; thresholding the target to generate a 32x32 magneto-acoustic super-pixel image, completing magnetic field shaping at the microsecond level, and simultaneously driving a GaN inverter to output matching phase and frequency; collecting power flow and temperature data through a high-precision analog-to-digital converter, and using an entropy regularization Sinkhorn algorithm to iteratively correct the power transport matrix and update the pixels in real time; finally, writing the feedback hash into a consortium chain storage to complete the millisecond-level trusted traceability. The present application realizes fast, accurate and traceable balancing of wireless energy of the energy storage module.

The present disclosure is directed to stellarators or assemblies including a stellarator including removable and / or replaceable components, such as removable field shaping units and / or removable shaping coils. In some embodiments, the stellarators of the present disclosure include a toroidal sector, which includes one or more removable field shaping units.

To provide a field working machine capable of traveling so as not to damage a field as much as possible, capable of easily specifying a place for supplying a working material, and capable of easily moving a traveling vehicle body to a ridge.SOLUTION: A work travel control unit configured to control an automatic work travel for performing an automatic back-and-forth travel while performing a ground work in a field work machine configured to supply an agricultural material to a field as the ground work by repeating the automatic back-and-forth travel along a target travel route including a work travel route and a turning route, A satellite positioning unit capable of detecting a position of a traveling vehicle body using a navigation satellite, and a work device capable of performing work on a field, wherein a field shape can be calculated based on a traveling trajectory of the traveling vehicle body acquired by detecting the position of the traveling vehicle body over time while the traveling vehicle body is traveling along a part or all of an outer periphery of the field.SELECTED DRAWING: Figure 4