43 results about "Field quality" patented technology

Concentric tilted double-helix magnets, which embody a simplified design and construction method for production of magnets with very pure field content, are disclosed. The disclosed embodiment of the concentric tilted double-helix dipole magnet has the field quality required for use in accelerator beam steering applications, i.e., higher-order multipoles are reduced to a negligibly small level. Magnets with higher multipole fields can be obtained by using a simple modification of the coil winding procedure. The double-helix coil design is well-suited for winding with superconducting cable or cable-in-conduit conductors and thus is useful for applications that require fields in excess of 2 T. The coil configuration has significant advantages over conventional racetrack coils for accelerators, electrical machinery, and magneto-hydrodynamic thrusting devices.

In a method and device for field quality testing of a magnetic resonance antenna arrangement of a magnetic resonance system composed of multiple antenna elements, a test signal is fed into the respective antenna elements by a transmission antenna and the test signal, or a noise signal that occurs with no signal fed to the respective antenna elements, is determined at a receiver unit for each of at least some of the individual antenna elements. The noise received noise signals and/or test signals are analyzed with regard to specific characteristic data and a quality state of the magnetic resonance antenna arrangement is determined based thereon.

A unilateral NMR sensor comprising a ferromagnetic yoke; a permanent magnet arranged on the yoke; a pole piece on the magnet; the pole piece including an air-pole piece interface surface whose shape corresponds to an equipotential contour of magnetic scalar potential. An approach for designing single-sided magnets suitable for unilateral magnetic resonance (UMR) measurements is presented. The method uses metal pole pieces to shape the field from permanent magnets in a target region. The pole pieces are shaped according to solutions to Laplace's equation, and can be designed using a combination of analytical methods and numerical optimization. The design leads to analytical expressions for the pole piece shape and magnetic field. The method is developed in Cartesian, polar, and spherical coordinates, and the merits of each system are discussed. The effects of finite magnet size on the field quality are explored through simulation, and are found to have a substantial effect in many cases. A magnet is designed using our method to produce a static field with a constant gradient over a region 2 cm in diameter and 2 mm thick. This leads to a compact cylindrical magnet just over 11 cm in diameter, topped with a single metal pole piece. The design is validated through simulation. The simulated field is found to agree closely with that specified analytically through the design procedure.

The invention discloses a multi-network-based manufacturing data real-time process management system and management method in a ship manufacturing industry. The manufacturing data real-time process management system is divided into a client access terminal, a manufacturing data real-time process management system platform, server terminals and a data center. The data center is respectively connected with the server terminals through a field operation plan management system, a real object tray tracing management system, a subsection transfer tracing management system, a construction data collecting system, a key equipment operation and maintenance management system, a field security examination management system, a field quality examination management system and a data management system. After the server terminals are optimized, the data center is linked with a PDA (Personal Digital Assistant) handheld terminal or a PC (Personnel Computer) client terminal through a multi-network module or a USB (Universal Serial Bus) port. According to the multi-network-based manufacturing data real-time process management system provided by the invention, the production executing efficiency is further improved, so as to bring about transformational influences on manufacturing management for ship manufacturing enterprises. With the development of the ship manufacturing industry in China, the project has the advantages of strong market demands and very wide industrialization prospect.

The present invention discloses an actual measurement and actual quantity method and system for engineering construction supervision quality acceptance. The key points of the technical scheme comprises: receiving project information input by a user; invoking matched pre-recorded quality regulation information according to the project properties of the project information, wherein there are several kinds of quality control information in the quality regulation information, and each kind of quality control information has a corresponding quality control threshold; inputting actual measurement data according to an uploaded actual measurement image; and comparing the actual measurement data with the quality control threshold in the corresponding quality control information, and generating the corresponding acceptance information according to a comparison result. This application integrates the field inspection and acceptance criteria, acceptance methods, acceptance results, actual measured data of the acceptance process and on-site impact data management in the housing construction and municipal public works to form a field quality establishment work management system with multiple functions of management, analysis, traceability and the like, thereby being efficient, fast and convenient.

The invention relates to a gas turbine combustion chamber's full-ring flame tube outlet temperature field testing piece, and more particularly to a method for evaluating the engine's main combustion chamber flame tube outlet temperature field quality. The method comprises the following steps: dividing the modified full-ring flame tube according to the individual heads; using each head as a sample point; setting a preset number of temperature data measuring points in each sample point area; conducting temperature data measurement in the preset numbers to obtain the sample data of each sample point; averaging all the temperature data at the same position inside the same row position in all sample point areas; and drawing a two-dimensional temperature changing curve for the temperature data measuring points from inwardly to outwardly. According to the method for evaluating the engine's main combustion chamber flame tube outlet temperature field quality, it is possible to eliminate the influence of the combustion instability on data and to evaluate more directly and effectively the combustion chamber flame tube outlet temperature field quality and to determine the direction for improvement.

The method relates to a field quality control method for sensory evaluation data of tobaccos, belonging to the technical field of sensory evaluation of the tobaccos. The field quality control method comprises the following steps: a. sensory evaluation judges evaluate an appointed standard sample and grade the sample in an evaluation table; b. the grading data from the sensory evaluation judges are recorded in a computer, a calculated result is led into an excel file, and a sensory evaluation data counting result is obtained; c. a matlab 5.0 is used for compiling a procedure and a data quality control program, and the general mid-value, general average value, general standard deviation, general coefficient of variation and total point of each evaluation result is worked out; d. when the coefficient of variation is greater than 10% and is less than 15%, a judging panel give a warning and informs indexes with higher coefficients of variation and the judges more greatly affecting the coefficients of variation; when the coefficient of variation is greater than 15%, the judging panel reevaluates the sample; and e. when the coefficient of variation of each evaluation result is less than 15%, the next sample evaluation is carried out. The method has the advantages of simpleness, efficiency and reliable sensory data.

The present invention relates to a method of discretization of the continuous current solution of a gradient coil design that allows satisfaction of the target field quality characteristics as well as other characteristics such as minimization of the energy/inductance, minimization of the residual eddy current effect, minimization of the thrust forces on the coil and cold shields, coil resistance thus the power dissipated by the coil, etc. The method of optimized gradient coil design can be applied to the design of axial or transverse gradient coils. The method of this invention includes the steps of defining at least one, and more commonly numerous performance characteristics of the desired gradient coil, concurrently varying discretization parameters to develop numerous possible hypothetical gradient coil designs, evaluating the designs to determine whether the defined performance characteristics are met by each design and selecting one design.

The invention discloses a machining method for an antenna housing. The machining method comprises the following steps of: 1) drilling holes in a cylinder, turning the internal diameter and external diameter of the cylinder, linearly cutting lateral through grooves, milling filler strips and clamping strips, turning a filling ring and milling through grooves on the filling rings; 2) performing sand-blowing treatment on the internal diameter of the cylinder, the lateral through grooves on the cylinder and the external diameter of the filling ring, polishing the filler strips and the clamping strips, and after the sand-blowing treatment and the polishing treatment are finished, washing the cylinder; and 3) spray-coating a primer on the surfaces of the internal diameter of the cylinder, the lateral through grooves on the cylinder and the external diameter of the filling ring subjected to the sand-blowing treatment, placing the cylinder in a drying oven at the temperature of 80 to 100 DEG C, and baking the cylinder for 2 to 2.5h. Field quality tracking and underground 180 DEG C*(100 to 130)MPa*3h tests show that the machined antenna housing has reliable and stable quality, high production efficiency and the qualified rate of over 90 percent.

The invention discloses a hot line measurement wind tunnel flow field disturbance modal method, and belongs to the technical field of flow field testing. According to a fitting relation curve characteristic between a dimensionless pulsation value theta of a hot wire working voltage and a dimensionless value r of a hot wire sensitivity coefficient, four modes of flow field disturbance, namely an eddy mode, an entropy mode, an acoustic mode and a mixed mode, are judged. According to the hot line measurement wind tunnel flow field disturbance modal method, the probe is simple and easy to install, the measurement method is clear, the disturbance mode of the flow field can be accurately measured, and a basis is provided for flow field disturbance mode evaluation and flow field quality optimization.

The invention provides a multifunctional light beam reverser. According to the multifunctional light beam reverser, a laser beam emitted out by a laser enters a lens III through a reflector I and a reflector II and is converted into parallel light, and a large-diameter light beam in a main magnifier is converted into a medium-diameter light beam so that the light beam can be conveniently transmitted in the multifunctional light beam reverser; parallel beams enter a 90-degree angle turning body formed by a reflector III, a reflector IV and an emitting lens V after passing through an electro-optical switch which is conductive to main laser pulses and isolative to self-oscillation and anti-lasers; the 90-degree angle turning body carries out 90-degree rotation on a near field and the polarization state of the parallel beams; the parallel beams are converged through a lens IV, and then are guided out through a reflector IV and a reflector VII. When the multifunctional light beam reverser is adopted, the energy output characteristic of a system is improved; astigmatism is converted into out-of-focus, and the far-field quality of output light beams of the system can be obviously improved further through lens focusing compensation.

An electric slag pressure welding appearance quality measuring device and a using method thereof comprise a measuring ruler and an iron hammer. The measuring ruler is provided with an electric slag pressure welding package placing hole, a steel bar axis reference line is engraved at the up-down center position of the measuring ruler, the measuring ruler is provided with a welding package height measurement caliper, an up-down steel bar joint bending angle index dial engraved with a welding package and a steel bar axis offset index dial. A protruded electric slag pressure welding package is sleeved inside the electric slag pressure welding package placing hole, a welding package lower steel bar axis aims at a lower reference line of the steel bar axis the measuring ruler, an upper reference line of the steel bar axis of the measuring ruler is used as the comparison reference of an upper steel bar, the welding package height measurement caliper on the upper right corner is moved in a sliding mode to enable the electric slag pressure welding package to be clamped up and down, and the height of the welding package is measured out through the index dial of the welding height measuring caliper. According to the electric slag pressure welding appearance quality measuring device, by manufacturing of a factory, field quality check is convenient, data are accurate, effective control to the quality of electric slag pressure welding in a construction site can be achieved, and the electric slag pressure welding appearance quality measuring device is economic and suitable for being used.

The invention relates to the field of power network dispatching optimization, in particular to a power system optimal dispatching method considering photoelectric access, comprising the following steps: A) making a plan ahead of schedule; B) dividing a day into time periods accord to time T as a unit, establishing and initializing each photoelectric field quality score Kw, updating that day-aheadplan accord to each photoelectric field quality score Kw to form an intra-day plan; C) real-time controlling that conventional unit to execute the intra-day plan within the time period, tracking the output of each photoelectric field and the output level of the conventional unit, calculate the photoelectric absorption income E at the end of the time period, updating the quality score Kw of each photoelectric field according to E, and repeating the step B-C until the day's scheduling is complete. By setting the quality score of the photoelectric field and tracking the actual effect of photoelectric dissipation, and feeding back to the intraday plan, the photoelectric dissipation is more active and the economic benefit of the photoelectric field is brought into full play.

The invention discloses an engine air intake pressure field quality automatic judgment method and device. A test data file to be analyzed is read, wherein the test data file includes the actually measured index value of an engine air intake pressure field measured in the test; the quality index value of each main pressure field and the maximum distortion area range corresponding to the quality index value of each main pressure field are calculated according to read test data file to be analyzed and the preset test parameters; and the standard situation of the quality of the engine air intake pressure field is judged according to the calculated quality index value of each main pressure field and the preset quality design index value of each main pressure field and the rule list. According to the engine air intake pressure field quality automatic judgment method and device, the time consumed for judging the pressure field quality can be greatly reduced, the pressure field analysis efficiency can be greatly enhanced and the optimization design of the substandard pressure field test piece can be greatly facilitated.

The invention relates to a field transplanting cultivation method of seedlings of roots of red-rooted salvia. During transplanting, strong seedlings and weak seedlings are graded to eliminate infected seedlings and seedlings with inferior qualities so as to guarantee the field quality regularity. When seedling planting is carried out, seedlings needs to stand straightly and the roots are placed vertically and downwardly, wherein the seedling planting depth requirement is met when the cultivation soil is close to the cotyledon; and the soil around the seedlings is compacted to prevent seedling falling during watering. When the root of red-rooted salvia is transplanted and planted, planting is carried out while watering is carried out; when seedlings are planted at one piece of rectangular land in the field, watering needs to be carried out on the planted seedlings at the one piece of rectangular land; seedling recovering water solutions are watered once after three or four days to guarantee rapid seedling recovering; and hole planting needs to be carried out during ridging. According to the method, the survivability is high; the soil quality requirement is low; the adaptability is high; large-scale transplanting cultivation can be realized well; and the later-stage medicinal value is high. After testing, when the provided method is used for the root of red-rooted salvia, the soil investment cost of each mu is reduced by two fifths at the later period and the survival rate reaches over 88%; and occurrence of the plant diseases and insect pests is reduced and the service life is long. And the medicinal value is great.

The invention provides a wind speed sensor quality detection method and device, which are applied to control equipment included in a wind speed sensor field calibration system. The method comprises steps: type recognition is carried out on a to-be-detected wind speed sensor, and based on the recognition result, a target traceability corresponding relationship is acquired; according to the target traceability corresponding relationship, a wind speed regulating device is controlled for wind speed regulating, and a wind speed measuring value of the to-be-detected wind speed sensor measured when the current measured wind speed value by a secondary speed measuring equipment is the same as a target secondary wind speed value is obtained; according to all wind speed measuring values of the to-be-detected wind speed sensor and all target standard wind speed values, the measurement error of the to-be-detected wind speed sensor is calculated; and according to all calculated measurement errors, whether the to-be-detected wind speed sensor is qualified is judged. The method can trace the field quality detection standard of the to-be-detected wind speed sensor, and based on the traceability relationship, quality detection processing with high detection accuracy and high detection accuracy is carried out on the to-be-detected wind speed sensor.

The invention discloses a flow state display comb tube for an automobile wind tunnel belonging to the technical field of automobile wind tunnel tests, which is composed of a base, a tension line II, a tension line I and an upper assembly, wherein the upper assembly is fixedly connected with the base through a lower reinforcing rib thereon; the lower ends of the tension line I and the tension line II are respectively fixedly connected to two sides of the base; the upper end of the tension line I is fixedly connected with the upper end at one side of a symmetrical wing-type ladle lid of the upper assembly; the upper end of the tension line II is fixedly connected with the upper end at the other side of the symmetrical wing-type ladle lid of the upper assembly; and the base is provided with a through hole. The drag coefficient of the invention is nearly zero; the comb tube has little obstruction on flow, can effectively reduce interference thereof on the flow field of the automobile wind tunnel, prevent separation and reduce influence on flow field quality of a test section; and the operation is convenient, and multi-point smoke flow state visualization can be realized from a model to the whole automobile aiming at automobiles with different proportions.

A ring magnet assembly has a generally cylindrical magnet body defining an air gap having an upper end and a lower end. Upper and lower face plates dispose respectively at an upper portion of the ring magnet and lower portion of the ring magnet. The face plates preferably have a high magnetic permeability. A mass analyzer may be disposed within the air gap. An ion generator may be disposed within an air gap of a ring magnetic assembly of the present invention. A pair of vertically-stacked magnetic ring assemblies may be provided. In that embodiment, a mass analyzer may be disposed within one air gap and an ion generator within another.

The invention relates to an air flow high-temperature sensor calibration device for a gas-liquid spray nozzle, which is applicable to steady and dynamic calibration of air flow high-temperature sensors below 2300K, and belongs to the technical field of high temperature sensor calibration. According to the invention, the air flow high-temperature sensor calibration device is formed by adopting a gas generator, a kerosene supply system, an air supply system, an oxygen gas supply system, a water cooling system, a measurement and control system, and the like. In order to guarantee the temperature field quality during high temperature sensor calibration, a manner of combining the gas-liquid spray nozzle type gas generator with a converged straight section is adopted. The air flow high-temperature sensor calibration device has the advantages of good temperature field quality, high combustion efficiency, relative simple structure, and the like, and can solve the problem of steady and dynamic calibration of the air flow high-temperature sensors below 2300K.