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66results about How to "Consistency is easy" patented technology

Optimal site selection method and device for distributed wind power plant based on fuzzy analytic hierarchy process

An optimal site selection device for a distributed wind power plant based on a fuzzy analytic hierarchy process comprises a DSP (Digital Signal Processor) module, a keyboard input module, a liquid crystal display module, a communication module and a host computer. An optimal site selection method for the distributed wind power plant based on the fuzzy analytic hierarchy process comprises the following steps: dividing candidate wind energy resource zones in a region rich in wind energy resources, determining an evaluation index system for the site selection of the wind power plant, determining the hierarchical structure of a scheme for the site selection of the wind power plant, judging the cognition degrees of experts on selected sites for the wind power plant by an expert group judgment and group decision method to obtain the cognition degree parameters of all the experts, and constituting a criterion layer judgment matrix and an index layer judgment matrix for the site selection of the wind power plant; and finally ranking the candidate wind energy resource zones by advantages and disadvantages and determining one site for the wind power plant. Compared with the traditional analytic hierarchy process for site selection, the method has the advantages that factors are fully considered, the examination and the regulation of the consistency of the judgment matrixes are simple, easy, scientific and reasonable, and results are scientifically analyzed. The device has the advantages that through the operation processing process of the DSP, the site selection period can be shortened, and the site selection efficiency can be increased.
Owner:NORTHEASTERN UNIV

Capacitive silicon microphone provided with vibrating membrane with concave-convex structure, and preparation method thereof

InactiveCN103402162AHigh sensitivityProblems with Raising Mechanical ToleranceElectrostatic transducer microphonesVibrating membraneConvex structure
The invention relates to a capacitive silicon microphone which is formed on a circuit area on a semiconductor substrate, and comprises a passivation layer, a dielectric layer, a device group, an air gap, an air cavity, at least one vent hole and a metal layer, wherein the passivation layer is a surface layer of the circuit area; the dielectric layer is arranged between the passivation layer and the substrate; the device group is embedded at the bottom of the passivation layer and comprises a first device and a second device; the air gap is arranged above the passivation layer; the air cavity is formed in the substrate; the at least one vent hole passes through the passivation layer and the dielectric layer downwards from the circuit area where the device group is not laid, and is respectively communicated with the air cavity and the air gap; the metal layer comprises a first part and a second part which are connected with each other, wherein the first part covers the air gap, and the second part passes through the passivation layer and is connected with the second device; the upper surface of the first part comprises at least one release hole and at least one concave part, wherein the position of each concave part corresponds to that of each vent hole. The capacitive silicon microphone can effectively improve the uniformity of the stress in a vibrating membrane of the silicon microphone, and can improve the sensitivity of the silicon microphone.
Owner:SHANGHAI INTEGRATED CIRCUIT RES & DEV CENT

Method and device for measuring gravity gradient of pyramid-like atomic interference based on two-dimensional cross gratings

A method and a device for measuring the gravity gradient of pyramid-like atomic interference based on two-dimensional cross gratings are provided. The method comprises the following steps: S1, preparation of a cold atomic group: a cold atomic group is obtained through pre-stage cooling; S2, velocity selection and state preparation: the temperature of the atomic group further decreases through Raman velocity selection, and a state is prepared on a magnetically insensitive state |F=1, mF=0>; S3, atomic interference: PI/2, PI and PI/2 light pulses are applied to the atomic group through two beamsof Raman light to realize the splitting and combining of the atomic group, and an atomic interferometer is constructed; and S4, internal state detection: after interference, the atomic group falls freely for a period of time, the number of atomic populations at a hyperfine energy level in two ground states is measured through the effect of probe light, pump light and astigmatic light, and the transition probability and the gravity acceleration value are finally obtained. The device is used to implement the method. The method and the device have the advantages of small overall size, strong robustness, low cost, high measuring accuracy, and the like.
Owner:NAT UNIV OF DEFENSE TECH

Arrangement for enriching data stream in a communications network and related method

Electronic arrangement for use in enriching data stream with subscriber information in a communications network preferably comprising a mobile network, the arrangement comprising at least one data interface for transferring data, at least one memory for storing instructions and other data, and at least one controller for processing instructions and other data, said at least one controller being configured, in accordance with the stored instructions, to cause storing same data in a relational database, such as SQL database, preferably including subscriber related profile data, and in a non-relational, preferably in-memory, database; wherein responsive to receipt of a data write request, optionally from a network entity, BSS/OSS system or other external system, triggering data write in a single transaction incorporating data write into the relational database and replication into the non-relational database, wherein in the case of a failure having regard to the replication into the non-relational database, the at least one controller is further configured to execute an exception procedure; and responsive to receipt of a data retrieval query from a requestor, optionally from said network or other entity processing a data stream, and dependent on the type of the query, fetching data from the non-relational database or relational database, and returning it to the requestor or other selected target. Related method is presented.
Owner:COMPTEL CORP

Method for manufacturing heat-pipe-parallel-structure-like foamy copper vapor plate

The invention discloses a method for manufacturing a heat-pipe-parallel-structure-like vapor plate by using stepped foamy copper as wicks. The vapor plate is characterized in that an upper copper covering plate, a lower copper covering plate and a stepped or flat foamy copper are sintered, a heat-pipe-structure-like vapor chambers are formed according a geometrical shape, and a liquid phase working medium is injected to the heat-pipe-structure-like vapor chambers; foamy copper steps are rectangle-shaped or trapezoid-shaped, and the foamy copper steps and the flat or stepped foamy copper are sintered on the upper copper covering plate and the lower copper covering plate according to a geometrical structure; a boss portion of the stepped foamy copper has a support effect; after the upper copper covering plate and the lower copper covering plate are combined through copper silver brazing or diffusion welding, vacuum pumping and liquid phase working medium injection are performed. The stepped foamy copper has high porosity and a good capillary character, the vapor chambers mutually communicates, rapid and high-efficient liquid-vapor conversion and gas phase rapid diffusion of in the liquid phase working medium in the vapor end can be ensured, and rapid backflow resistance of a condensation end can be reduced after the liquid-vapor conversion. The manufactured heat-pipe-parallel-structure-like vapor plate can meet the demands of semiconductor electronic devices for rapid and high-efficient heat conduction and heat dissipation.
Owner:JIANGSU GREEN NEW MATERIALS TECH CO LTD

Miniaturized medium-wave infrared refrigeration continuous zoom lens and optical system

The invention relates to a miniaturized medium-wave infrared refrigeration continuous zoom lens and an optical system. The invention provides a miniaturized medium-wave infrared refrigeration continuous zoom lens and an optical system, aiming at solving the technical problems of low zoom ratio, low overall transmittance of the system, heavy weight, complex structure and higher control precision requirement of the existing infrared continuous zoom system and providing the miniaturized medium-wave infrared refrigeration continuous zoom lens and the optical system. The lens comprises a lens unit, a detector protection window G and an optical filter H which are sequentially arranged along an optical path from an object side to an image side, the lens unit comprises four groups of lenses which are sequentially arranged along an optical path, and the four groups of lenses are respectively a front fixed group with positive focal power, a zoom group with negative focal power, a compensation group with positive focal power and a relay group with positive focal power. The optical system adopts the lens. The lens is a miniaturized infrared continuous zoom lens with the advantages of total length, few lenses, simple structure, convenient assembly and high zoom ratio, and the contradiction between the structural assembly difficulty and miniaturization in the existing infrared continuous zoom lens is solved.
Owner:西安中科立德红外科技有限公司

Centrifugal type compressor shaft system structure and centrifugal type compressor

The invention discloses a centrifugal type compressor shaft system structure. A main shaft, a first impeller, a second half shaft, a second impeller, a first locking part, a sleeve and a motor rotor are included; the main shaft comprises a first half shaft and a shaft core; the shaft core is connected with the first half shaft, and extends in the axial direction; the first impeller is connected with the first half shaft; the second half shaft is provided with a first shaft hole; the second impeller is provided with a second shaft hole, and the shaft core is sleeved with the second half shaft and the second impeller in sequence in the axial direction; the first locking part is arranged on the outer side of the second impeller in the axial direction, and the first locking part is connected with the shaft core to provide a locking force; the sleeve is arranged between the first half shaft and the second half shaft, and arranged on the shaft core in a sleeving manner, and an installing space is formed between the sleeve and the shaft core; and the motor rotor is arranged in the installing space. A centrifugal type compressor comprises the centrifugal type compressor shaft system structure. The locking part on the end portion is used for providing the axial locking force, so that the main shaft, the sleeve, the second half shaft and the second impeller are connected into a whole, the end face locking force can be used for remarkably improving the rigidity of a shaft system, and then the critical rotating speed of the shaft system is increased.
Owner:GUANGZHOU HAOZHI ELECTROMECHANICAL

Inter-well electromagnetic detection system and method

The invention discloses an inter-well electromagnetic detection system and method, and belongs to the technical field of resource drilling. The method comprises the following steps: constructing a transmitting galvanic couple source by using a metal sleeve of a cased well in a plurality of wells; applying excitation signals to the transmitting galvanic dipole source to enable the transmitting galvanic dipole to transmit transmitting signals, then receiving the transmitting signals transmitted by the transmitting galvanic dipole source through the receiving electrodes distributed on the measuring lines, finally, detecting the response characteristics of the received transmitting signals, and obtaining resistivity distribution of the cross-well oil and gas reservoir. According to the method,magnetic dipole detection adopted in a conventional cross-well electromagnetic method is changed into electric dipole detection, the transmitting power of transmitting signals can be improved, and therefore the detection range is enlarged. The shielding effect of the sleeve on electromagnetic signals in a conventional cross-well electromagnetic method can be eliminated, the characteristic that the metal sleeve has good electrical conductivity is further utilized, emission current is directly applied to the metal sleeve to serve as a long dipole emission line source, and cross-well long-distance detection can be achieved.
Owner:BC P INC CHINA NAT PETROLEUM CORP +1

Far-field target marker and application of optical fiber panel

The invention provides a far-field target marker and application of an optical fiber panel. The structural design of the marker used at present cannot guarantee single peaks, smoothness and symmetry of a radiation beam, and is difficult to guarantee a given radiation angle; in the absence of reinforcing designs of elimination of the sunshine effect, high and low temperature resistance and radiation resistance, the conventional marker cannot meet the requirements of a far distance and a large range, and cannot normally work in strong interference environments with sunshine and other stray lights, environments of large variation of high and low temperature, and environments with intense radiation. The far-field target marker comprises a cylindrical shell (1); the front section of the cylindrical shell is provided with a high-uniformity optical fiber panel (2), and the rear section of the cylindrical shell is provided with a light-emitting combination; and the light-emitting combination comprises a circuit board (3) which is connected with a thermistor (4) and a group of near infrared light-emitting diodes (5). The far-field target marker is used as an active optical cooperative target or an active light source mark in a large distance range, and can be widely applied to fields of aviation, spaceflight, airports, docks, traffic hinges and the like.
Owner:李金宗

Transducer array for high-intersity focusing ultrasonic tumor treatment

InactiveCN1281286CHigh output sound powerHigh Array Focused Sound Intensity RatioUltrasound therapyArray elementHigh-intensity focused ultrasound
A transducer array for high-intensity focused ultrasound tumor treatment belongs to the field of medical equipment. The present invention is composed of a matching layer and a piezoelectric ceramic sheet. The matching layer is a concave spherical thin-shell bowl-shaped acoustic radiation layer with uniform thickness. All piezoelectric ceramic sheets are glued on the outer surface of the same matching layer. Multiple identical Piezoelectric ceramic sheets constitute a large-aperture co-concave spherical compact mosaic transducer array. The invention has a high array focused sound intensity ratio and symmetrical focused sound field characteristics; the piezoelectric ceramic sheet area of ​​each array element is small, and the manufacturing cost is low; the number of array elements and the number of power amplifier channels are small, and the power amplifier, phase shifting The consistency of the transducer and the matching network is easier to realize, manufacture, and adjust, and the stability and reliability are greatly improved; the common matching layer provides a firm support for the transducer array element, and resonant reinforcement occurs together with the array element The consistency of the resonance of each array element is ensured, and the output sound power of the array is maximized.
Owner:SHANGHAI JIAOTONG UNIV +1

Hydrostatic guide rail based on precision improvement and temperature maintaining system

PendingCN112846825AAchieve high-precision linear motionGood load carrying characteristicsLarge fixed membersMaintainance and safety accessoriesThermodynamicsHeat stability
The invention discloses a hydrostatic guide rail based on precision improvement and a temperature maintaining system. The hydrostatic guide rail comprises a supporting assembly, a driving assembly, a position measuring assembly, a cooling assembly and a protection assembly; after hydrostatic lubricating oil is introduced into the hydrostatic guide rail, hydrostatic oil films are formed on the upper and lower surfaces of a main sliding block and an auxiliary sliding block; and the vertical up-and-down movement of a guide rail sliding part is limited, hydrostatic oil films are formed on the left side face and the right side face of the main sliding block, the lateral left-and-right movement of the guide rail sliding part is limited, two throttlers which are installed in a workbench in series and lead to oil cavity paths can adjust the pressure of the oil films in a self-adaptive mode in real time according to changes of external loads, and therefore, high-precision linear motion and high dynamic characteristics of the hydrostatic guide rail are realized. A controller maintains the internal environment temperature of the hydrostatic guide rail by controlling the fluid temperature and the supply flow in an air cooler, a first oil cooler, a second oil cooler and a lubricating oil supply device, and then the high heat stability of the hydrostatic guide rail is achieved.
Owner:INST OF MACHINERY MFG TECH CHINA ACAD OF ENG PHYSICS

Multi-purpose roller system quick opening and roller exchange device of straightening machine

A multi-purpose roller system quick opening and roller exchange device of a straightening machine relates to the technical field of steel and nonferrous metals. An oil cylinder fixing support is connected with a roller support, a frame inner guide rail is fixed on a memorial gateway of the frame, an idler wheel is connected with the roller support, a lower roller system is installed in the roller support, a quick-opening oil cylinder is connected with the roller support through a connection block by using a bolt, and a movable pad block is installed between the roller support and the oil cylinder fixing support, so that when the roller system works, the idler wheel on the roller system is not contacted with the frame inner guide rail; when a roller is changed, the quick-opening oil cylinder drives the roller system to move towards the guide rail to enable the idler wheel on the roller system to be contacted with the frame inner guide rail; a gap is left between a lower surface of the roller support and the quick-opening oil cylinder in both the roller exchange state and roller un-exchange state; an approach switch is installed on the frame through an approach switch support, and the approach switch is provided with an approach switch information transmitting plate. The multi-purpose roller system quick opening and roller exchange device is simple in structure, only uses the quick-opening oil cylinder to achieve the quick opening and roller exchange of the roller system, greatly reduces manufacture and using cost of equipment, is long in service life, and is smooth and rapid in a roller exchange process compared with an original structure.
Owner:XIANGYANG BOYA PRECISION IND EQUIP
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