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292 results about "Parallel plate" patented technology

Capacitance of two parallel plates. The most common capacitor consists of two parallel plates. The capacitance of a parallel plate capacitor depends on the area of the plates A and their separation d. According to Gauss's law, the electric field between the two plates is:

Method for quantitative evaluation of gas seal performance of annular blowout preventer

A method for quantitative evaluation of gas seal performance of an annular blowout preventer is provided. The equivalent average contact pressure of the tubing-rubber core sealing surface is acquired based on the principle of equivalent seal contact energy, the tubing-rubber core microscopic contact state is simulated by using elastic-plastic normal flattening contact between the rigid smooth flat plate and the uniformly distributed spherical micro-convex body rough plate, the actual contact area of the single spherical micro-convex body under the equivalent average contact pressure of tubing-rubber core sealing surface is acquired, and then the circumferential width and average height of the microscopic leakage channel at the tubing-rubber core contact interface are acquired, the gas leakage volume rate of gas through the tubing-rubber core interface is acquired by using the parallel plate model in hydrodynamics, and the gas leakage volume rate is compared to the allowable gas leakage volume rate.
Owner:CHONGQING UNIVERSITY OF SCIENCE AND TECHNOLOGY

Glass substrate structure, preparation and packaging method thereof, electronic component and integrated circuit

PendingCN121729099ACapacitanceParallel plate
The invention relates to the technical field of semiconductors, and discloses a glass substrate structure, a preparation method and a packaging method of the glass substrate structure, an electronic component and an integrated circuit. The conductive interconnection channel penetrates through the glass core plate; the parallel plate capacitor and the first rewiring structure are positioned on the first surface of the glass core plate; wherein the parallel plate capacitor is an aluminum-based capacitor; the second re-wiring structure is positioned on the second surface of the glass core plate; wherein the second surface and the first surface are two opposite surfaces on the glass core plate; the second redistribution structure is electrically connected with the first redistribution structure through the conductive interconnection channel. The glass substrate structure has the advantages that the glass core plate is used for providing basic support, the aluminum-based capacitor is used for simplifying the process and reducing the cost, signal distribution and transmission are achieved through the first rewiring structure and the second rewiring structure, and finally based on cooperation of all the components, the glass substrate structure keeps excellent electrical performance, and meanwhile the electrical performance of the glass substrate structure is improved. And the manufacturing process is simpler and the yield is higher.
Owner:RADIO WAVE MICROCOMMUNICATION (NINGBO) COMMUNICATION TECHNOLOGY CO LTD

Three-element leaky antenna array structure and design method based on dielectric ridge parallel plate waveguide

This invention discloses a three-element leaky wave antenna array structure based on a dielectric ridge parallel plate waveguide, comprising: S1, designing a three-element array structure based on the coupling characteristics of the dielectric ridge parallel plate waveguide, wherein the two-port array antenna is fed by probes in parallel; S2, determining the slot design of the three elements according to the pattern product theorem and the relationship between slot size and leakage, thereby designing a scanning beam that meets the requirements of narrow beamwidth and high gain. This invention is a leaky wave antenna array structure with narrow beamwidth and high gain characteristics proposed to meet the requirements of high signal strength and strong anti-interference in long-distance point-to-point communication systems. This antenna can provide better directivity and higher communication quality, while ensuring that the antenna has the advantages of compact structure and small size, thus it can be applied to wireless power transmission systems such as satellite communication systems, radar systems, and the Internet of Things.
Owner:BEIJING JIAOTONG UNIV

Coupling stiffness disturbance type MEMS modal localization accelerometer

The invention provides a coupling stiffness disturbance type MEMS modal localization accelerometer, which is characterized in that a core sensing unit adopts a double-tuning-fork resonator parallel arrangement configuration, and an offset weak coupling resonance system is designed and constructed through the difference of equivalent support stiffness parameters. The outer tuning fork resonator is directly connected with the sensitive mass block, the inner tuning fork resonator realizes full-constraint fixation through a base anchor point, and the outer tuning fork resonator and the inner tuning fork resonator form a double-tuning-fork electrostatic weak coupling resonant structure through an electrostatic coupling parallel plate, so that energy transfer between resonant units is realized. The mechanism of the accelerometer is different from that of a traditional rigidity or quality disturbance mode localization sensor, when the accelerometer is subjected to the action of external acceleration, the inertial micro displacement of the accelerometer is converted into coupling rigidity change of the weak coupling resonance system, the resonance unit amplitude ratio of the weak coupling resonance system is detected through an external circuit, and the detection accuracy is improved. Therefore, the detection of coupling rigidity disturbance is realized, and finally the high-sensitivity detection of the measured acceleration is realized.
Owner:NANJING UNIV OF INFORMATION SCI & TECH

A broadband multi-stage gysel power divider based on IPD process

The application discloses a broadband multi-stage Gysel power divider based on an IPD process, comprising a microstrip structure layer, and first and second dielectric substrates and a ground metal layer; the microstrip structure layer adopts a multi-layer nested structure, each layer of the nested structure is formed by cascading multi-stage Gysel power division units, and is arranged on the upper surface and the interior of the first dielectric substrate, so that an integrated layout based on the IPD process is formed, and a planar spiral structure, an air bridge, a parallel plate capacitor, a thin film resistor and a layered ground unit structure are integrated; the planar spiral structure is equivalent to a specific characteristic impedance transmission line, the air bridge structure solves cross interference and suppresses a parasitic capacitor, the parallel plate capacitor structure calibrates equivalent reactance parameters, the thin film resistor effectively improves port isolation and heat dissipation, and the layered ground unit structure strengthens heat dissipation and ground reliability. The application can realize stable power distribution in a wide frequency band, and is suitable for the integration requirements of high-frequency, high-power and small-sized radio frequency front ends.
Owner:NANJING UNIV OF SCI & TECH

A dual-mode high-gain millimeter wave beam scanning antenna

The application relates to the technical field of antennas, in particular to a dual-mode high-gain millimeter wave beam scanning antenna, which comprises a bottom dielectric substrate provided with a first excitation port and a second excitation port at two ends; a top dielectric substrate comprising a '+'-shaped dielectric cover layer arranged on the top of the bottom dielectric substrate; parallel plate slot waveguides connected with a first substrate integrated waveguide horn and a second substrate integrated waveguide horn at two ends respectively; a first waveguide transition structure connected with the first excitation port and the first substrate integrated waveguide horn at two ends respectively; and a second waveguide transition structure connected with the second excitation port and the second substrate integrated waveguide horn at two ends respectively. The application can realize wide-range beam scanning including backward end radiation, meanwhile, high-gain single beam scanning is maintained, the application has the characteristics of simple structure, easy integration and processing, high gain and full coverage of the upper half space, and greatly improves the performance of a millimeter wave wireless communication system.
Owner:GUANGDONG OCEAN UNIVERSITY

Systems, articles, and methods for a tunable capacitor

ActiveUS12501840B2Quantum computersCapacitor with electrode distance variationCapacitanceDielectric
In some implementations, a superconducting integrated circuit has a tunable parallel-plate capacitor, and a magnetic field generator operable to apply a magnetic field to the tunable parallel-plate capacitor to tune a capacitance of the tunable parallel-plate capacitor. The tunable parallel-plate capacitor includes a first capacitor plate having a plane, a second capacitor plate having a plane, and a dielectric interposed between the first capacitor plate and the second capacitor plate. The plane of the second capacitor plate is geometrically parallel to the plane of the first capacitor plate. In some implementations, a superconducting integrated circuit has a tunable parallel-plate capacitor, and an electric field generator operable to apply an electric field to the tunable parallel-plate capacitor to tune a capacitance of the tunable parallel-plate capacitor. The tunable parallel-plate capacitor includes a pair of capacitor plates, and a dielectric interposed between the pair of plates.
Owner:D WAVE SYSTEMS INC

Three-phase single-stage isolation ACDC device and server power supply

The invention relates to a three-phase single-stage isolation ACDC device and a server power supply, a three-phase single-stage isolation ACDC circuit is arranged on a substrate, a quiet potential assembly is arranged between the three-phase single-stage isolation ACDC circuit and a shell, and the quiet potential assembly is connected to the three-phase single-stage isolation ACDC circuit. And the first capacitor, the second capacitor and the third capacitor of the three-phase input circuit are connected to form a common end. Therefore, each moving point and the quiet potential assembly on the three-phase single-stage isolation ACDC circuit can be equivalent to a parallel plate capacitor, and after the three-phase single-stage isolation ACDC circuit operates in any phase and generates common-mode noise, common-mode current flows through the second end of the first capacitor, the second end of the second capacitor and / or the second end of the third capacitor through the equivalent capacitor, so that the common-mode noise is generated. And finally, the noise flows back to the noise source in the three-phase single-stage isolation ACDC circuit. Common-mode noise generated by the three-phase single-stage isolation ACDC circuit and the shell is avoided, and the purpose of improving and solving common-mode noise interference generated by the three-phase single-stage isolation ACDC circuit on adjacent electric equipment is achieved.
Owner:SHENZHEN HUADA NEW ENERGY TECH CO LTD +1

Wide-range dielectric constant standard substance and traceable valuing method thereof

The embodiment of the invention discloses a wide-range dielectric constant standard substance and a traceable valuing method thereof. The standard substance is based on a four-stage material system of high density polyethylene (HDPE), polyvinylidene fluoride (PVDF), aluminum oxide (Al2O3) and barium titanate (BaTiO3), and wide-range coverage of a single-piece dielectric constant epsilon r of 2.3-118 is realized through volume ratio regulation and control. And an annular retaining ring electrode structure (1-3mm unplated area is reserved on the edge) is adopted, so that the edge capacitance is inhibited to be less than 0.03% of the total capacitance, and the traditional edge correction is avoided. According to the constant value method, a sodium chloride solution (0.760 mol.kg <-1 >) is taken as a first-grade standard, and a quantity value is transmitted through a parallel plate clamp constant, so that the calibration requirement of a frequency band of 100Hz-1MHz is met. The uncertainty is less than or equal to 0.6% (k = 2), and the problems of narrow mass range, complex operation and difficult traceability of the existing standard substance are solved.
Owner:BEIJING HAIAN HONGMENG STANDARD SUSNCE TECH

Medical clinical airway patency device for old people

The invention discloses a clinical airway unobstructing device for old-age medicine. The clinical airway unobstructing device comprises a drafting frame, a pop-up auxiliary structure, a rotating replacement disc, a winding roller, a storage assembly and a main body support. The invention belongs to the technical field of airway patents. According to the scheme, only when all the trigger buttons are pressed down by the telescopic moving rod, discharging between the parallel-plate capacitors is ended, electrorheological fluid is made to be in the liquid characteristic, and in the state, the pop-up sleeving shell is separated from the rotating shaft through the pop-up auxiliary spring, so that the winding roller is assisted in being popped up, and therefore the winding effect is improved. Automatic auxiliary popping of the airway hose after the airway hose is wound in place on one winding roller is completed, and automatic experience is achieved; and when the next group of winding rollers are popped out, the falling winding rollers can be clamped by the storage rollers in the other group of overturning accommodating shells below, so that the air passage hose and the air passage intubation tube are convenient to replace, and the use experience is improved.
Owner:JILIN UNIV FIRST HOSPITAL

Multilayer electrical component

Multilayer ceramic capacitor, comprising: a dielectric body; first and second conductive terminals, separated from each other by the dielectric body; a multitude of parallel plate-shaped internal electrodes forming a stack of electrode layers embedded in the dielectric body; first and second groups of inner electrodes from the plurality of parallel plate inner electrodes, each group comprising a first inner electrode and a separate, adjacent second inner electrode, wherein a first gap of the first inner electrode is offset relative to a second gap of the separate, adjacent second inner electrode in a first direction between the first and the second conductive terminal, wherein a section of the first inner electrode overlaps a section of the second inner electrode to form capacitance regions in each group of inner electrodes; and a set of at least two third inner electrodes from the plurality of parallel plate inner electrodes arranged between the first and second group of inner electrodes, wherein at least two third inner electrodes are stacked next to each other and form a region with negligible capacitance.
Owner:KNOWLES UK LTD

Support plate for folding portable display device

An example folding device comprising: a first housing; a second housing; a hinge assembly rotatably connected to the first housing and the second housing; a continuous display connected to and across the first housing and the second housing; and a first collapsible support plate connected to the first housing and configured to support the continuous display when the folding device is fully opened, wherein: the first collapsible support plate comprises a single continuous plate folded over itself to form two parallel plates, a first parallel plate of the two parallel plates defines a straight edge that overhangs one or more voids in a second parallel plate of the two parallel plates, and the straight edge defined by the first parallel plate is adjacent to the hinge assembly.
Owner:GOOGLE LLC

Tunnel side wall flatness detection device

The utility model relates to the technical field of flatness detection, and discloses a tunnel side wall flatness detection device, which comprises a parallel plate, the outer surface of the parallel plate is provided with a detection mechanism, the back surface of the parallel plate is fixedly connected with a lug block, the interior of the lug block is slidably connected with an extension rod, one end of the extension rod is fixedly connected with a side wall sliding mechanism, and the other end of the extension rod is fixedly connected with a side wall sliding mechanism. A plurality of screw holes are formed in the outer surface of the extension rod, and the outer surfaces of the lug blocks are in threaded connection with locking rotary knobs. An operator holds the handle to push the device to move, so that the steel ball is attached to the side wall, if the side wall is flat, the displacement amount detected by the displacement sensor is normal, and the alarm lamp is not turned on, and if the side wall is concave-convex, the steel ball drives the measuring rod to stretch out and draw back, and the displacement sensor detects abnormal displacement change, and the alarm lamp is turned on. The flatness of the side wall of the tunnel is rapidly judged in a visual alarm mode, and the detection work efficiency and convenience are improved.
Owner:CHINA CONSTR (BEIJING) ENG TESTING CO LTD

Anti-splashing structure for machining and grinding of automobile parts

The utility model discloses an anti-splashing structure for machining and polishing automobile parts. The anti-splashing structure comprises a fixing frame, a side plate and a polishing wheel. The side plates are of two sets of parallel plate-shaped structures and fixed to the two sides of the fixing frame, a main body of the grinding wheel is a roller shaft rotationally matched between the two sets of side plates, and grinding materials are evenly distributed on the roller shaft. A power motor is fixed on one side plate, and an output shaft of the power motor and a roll shaft of the polishing wheel are concentrically fixed; a chip blocking cover capable of moving up and down is arranged below the side, away from the grinding wheel, of the fixing frame, a chip collecting cover is arranged at the top of the chip blocking cover in a communicating mode, and the chip collecting cover is externally connected with negative-pressure chip collecting equipment. The device has the beneficial effects that the chipping collecting function is achieved; the position of the chip blocking cover can be adaptively adjusted along with the grinding depth, and it is guaranteed that the chip blocking cover is located in the moving direction of flying chip flow all the time.
Owner:WUHAN YIHONG IND TECHNOLOGY CO LTD

Parallel plate ionization chamber on-line self-checking method and system and beam loss monitoring system

The invention provides an online self-checking method and system for a parallel plate ionization chamber and a beam loss monitoring system, and relates to the technical field of particle accelerators, the parallel plate ionization chamber comprises a bias pole plate and a signal pole plate, and a composite voltage formed by superposing a DC bias voltage and a preset low-frequency AC oscillation voltage is applied to the bias pole plate; a test current with the same frequency as the low-frequency alternating-current oscillation voltage is induced on the signal pole plate by using the natural capacitance between the bias pole plate and the signal pole plate; the test current is collected and analyzed to obtain at least one preset characteristic parameter, and the characteristic parameter comprises a quantity related to the magnitude or period of the test current; and comparing the characteristic parameters with a preset reference value so as to judge the health states of the parallel plate ionization chamber and the signal measurement link thereof. According to the invention, a radioactive source and a complex mechanical structure do not need to be additionally arranged, and online self-inspection with high reliability and comprehensive diagnosis of the parallel plate ionization chamber can be remotely realized.
Owner:INST OF MODERN PHYSICS CHINESE ACADEMY OF SCI

Modular system for physically manipulating physical media elements, and methods of operation thereof

Systems and methods for mechanically processing physical media elements, e.g., automatically scratching scratch-off lottery tickets, may include receiving a batch of tickets at an input chute of a scratching system. Tickets may be serially fed through the scratching system that includes a series of roller scratching mechanisms. Pressure rollers may be individually adjustable to set a pressure of the scratching mechanisms. One or more scanners may obtain information from the tickets before and / or after scratching. A pair of parallel plates may be used to form a feed path to guide tickets through the system. A vacuum manifold may isolate some elements of the system from debris, and remove the debris from the system via negative pressure. One or more presence sensor may detect presence of a current ticket to control operation of feed motors. Various functions or elements of the system may be distributed over a plurality of removable modules.
Owner:JACKPOCKET LLC

Lcos-optical-engine-based compact single-layer full-color ar optical waveguide

PCT designated stageWO2026027002A3Optical elementsOptical bondingGrating
An LCoS-based compact single-layer full-color AR optical waveguide, comprising an LCoS optical engine (1), a parallel plate (2), a coupling-in graded-period polarization volume lens (3) and a two-dimensional coupling-out polarization volume grating (4), wherein the LCoS optical engine (1) is connected to the parallel plate (2) by means of optical bonding; the coupling-in graded-period polarization volume lens (3) achieves the effects of light collimation and light defection and coupling, and undergoes graded-period processing to extend the wavelength bandwidth thereof to a visible light range; and the two-dimensional coupling-out polarization volume grating (4) is used for expanding light in two directions, thereby achieving a pupil expansion effect. The full-color AR optical waveguide solves the problem of an LCoS optical engine being excessively large due to the reliance on a projection lens, thereby enabling the implementation of a compact single-layer full-color AR optical waveguide.
Owner:SOUTHEAST UNIV +1

Spraying device for corrosion prevention of stepping motor shell

The utility model relates to the technical field of stepping motor machining, in particular to a spraying device for corrosion prevention of a stepping motor shell, which comprises a machining box, a heating plate is fixedly connected to the rear side of the inner wall of the machining box, two conveying shaft rollers are rotatably matched with one side of the inner wall of the machining box, and a conveying belt is arranged on the two conveying shaft rollers. And one side of the conveying belt is fixedly connected with a parallel plate. The conveying belt is arranged, the parallel plate and the arc-shaped sliding plate can be driven to move towards the close direction through rotation of the conveying belt, in the moving process, the arc-shaped sliding plate is guided through the arc-shaped guide groove, the position of the parallel plate and the position of the arc-shaped sliding plate are changed by bypassing the arc-shaped sliding plate from the lower portion, and the moving efficiency is improved. And then the heating plate is started to cool the motor shell sprayed on the arc-shaped sliding plate, so that the next motor shell is machined in the cooling process, and the machining cycle is shortened and the machining efficiency is improved through sequential circulation.
Owner:HUNAN ZHNE MOTOR CO LTD

Electronic device

PendingUS20260197388A1Parallel plateWaveguide
This application discloses an electronic device, including a first metal plate, a second metal plate, and a first circuit board. The first metal plate is configured to support a display screen of the electronic device. The second metal plate and the first metal plate are oppositely arranged in a first direction, and the second metal plate is configured to support a rear cover of the electronic device. At least a portion of the first circuit board is located between the first metal plate and the second metal plate. The first metal plate includes a first opening, and the second metal plate includes a second opening. A projection of the first opening on the second metal plate at least partially overlaps the second opening. The electronic device according to this application can weaken coupling between a parallel plate waveguide and a microstrip line waveguide.
Owner:HONOR DEVICE CO LTD

Multilayer ceramic capacitor

The utility model relates to the technical field of ceramic capacitors, in particular to a multilayer ceramic capacitor. A plurality of layers of stacked suspension electrodes for resisting deformation are arranged between a plurality of adjacent parallel-plate capacitors, and the capability of resisting the inverse piezoelectric effect of the central area of the capacitor is enhanced through the toughness and the strength of the suspension electrodes, so that the failure probability caused by the inverse piezoelectric effect in the use process of the capacitor is greatly reduced; the suspension electrode is arranged in the middle area in the height direction of the capacitor, so that the anti-deformation capability of the area with the maximum deformation degree can be greatly improved, and the stability of the capacitor in the using process is improved; and the phenomenon that the existing high-voltage and high-capacitance multilayer ceramic capacitor is easy to fail due to the inverse piezoelectric effect in the use process is improved.
Owner:YUANLIU HONGYUAN (SUZHOU) ELECTRONIC TECH CO LTD

Coal mine electrical cable erecting device

The utility model belongs to the technical field of cable erection, and particularly relates to a coal mine electrical cable erection device which comprises a base and a hollow shell arranged at the top of the base, a moving assembly is arranged in the hollow shell, two supporting plates are arranged on the moving assembly, and a cable fixing assembly is arranged on each supporting plate. The cable fixing assembly comprises a plate body arranged on the supporting plate, multiple sets of through grooves are formed in the plate body, a cable fixing plate is arranged in each set of through grooves, each cable fixing plate is composed of two parallel plates moving in the corresponding through groove and arc-shaped plates arranged on the two sides of the two parallel plates, a cable cavity is formed by one arc-shaped plate and the outer side of the plate body, and the cable fixing assembly is arranged in the cable cavity. The other arc-shaped plate and the outer side of the plate body form a driving cavity, a connecting plate connected with the arc-shaped plates is arranged in the driving cavity, a semicircular plate is installed at the end, away from the arc-shaped plates, of the connecting plate, and two fixing blocks are arranged on one side of the plate body. According to the device, different cables can be quickly fixed, the working efficiency is improved, meanwhile, shaking is avoided, and the safety is improved.
Owner:谢进

Wideband wide-angle scanning matching structure based on microstrip antenna

The utility model belongs to the technical field of phased array radar antennas, and relates to a broadband wide-angle scanning matching structure based on a microstrip antenna, which comprises a metal floor, a feed layer dielectric substrate, a copper layer and a radiation layer dielectric substrate, the lower surface of the feed layer dielectric substrate is fixedly connected with the metal floor, copper layers are etched on the upper surface and the lower surface of the feed layer dielectric substrate, metal isolation electric walls are arranged on the edge and the interior of the feed layer dielectric substrate, and the metal isolation electric walls are connected with the copper layers; the radiation layer dielectric substrate is adhered to the upper surface of the feed layer dielectric substrate; a metal isolation electric wall is introduced into a feed medium substrate, and the metal isolation electric wall surrounding the edge of the feed medium substrate forms an integrated back cavity structure, so that high-Q-value resonance excited by a parallel plate mode is suppressed; therefore, in-band resonance of the microstrip antenna is effectively suppressed, and broadband wide-angle scanning of the microstrip antenna is realized.
Owner:LEIHUA ELECTRONICS TECH RES INST AVIATION IND OF CHINA

Fabry-Perot interferometer measuring system based on cascade connection of three polar plates and double cavities

The invention provides a Fabry-Perot interferometer measurement system based on three-pole-plate double-cavity cascade, and relates to the technical field of optical precision measurement, the system comprises an optical fiber coupling laser light source with an optical path protection device, an optical fiber collimator, an F-P interferometer and an optical fiber coupling optical detector, and adopts a double-interference-cavity cascade structure of three parallel pole plates; wherein the three parallel polar plates consist of a first fixed plate, a middle movable plate and a second fixed plate; a first interference cavity is formed between the first fixed plate and the middle movable plate, and a second interference cavity is formed between the middle movable plate and the second fixed plate. The limitation of a traditional single cavity is broken through, a double-interference-cavity cascade system is constructed by introducing the middle movable polar plate, the introduction of the middle polar plate not only expands a single cavity into two interference cavities which work cooperatively, but also realizes dynamic coupling modulation of the optical path difference through the mechanical mobility of the polar plate.
Owner:HARBIN UNIV OF SCI & TECH

Multifunctional superconductive heterogeneous film composite structure, device and preparation method thereof

PendingCN121001556AParallel plateThin membrane
The invention provides a multifunctional superconducting heterogeneous thin film composite structure, a device and a preparation method thereof. The multifunctional superconducting heterogeneous thin film composite structure is formed by sequentially growing and preparing a first layer of superconducting thin film, a dielectric layer thin film, a second layer of superconducting thin film, a barrier layer thin film and a third layer of superconducting thin film on a substrate in situ. Wherein the first-layer superconducting film-dielectric layer film-second-layer superconducting film structure can be applied to preparation of a parallel-plate capacitor, and the second-layer superconducting film-barrier layer film-third-layer superconducting film structure can be applied to preparation of a Josephson junction. On the basis, the superconducting electronic device with multiple functions can be realized. The preparation of the multifunctional superconducting heterogeneous film composite structure is realized through the magnetron sputtering method and the chemical vapor deposition method, the equipment cost is reduced, the process stability is high, the film uniformity is high, the machinability is strong, and the application scene is wide.
Owner:SHANGHAI INST OF MICROSYSTEM & INFORMATION TECH CHINESE ACAD OF SCI

Multi-type iron core mixed film-coated copper foil parallel plate type water-cooled reactor

The utility model provides a multi-type iron core mixed film-coated copper foil parallel plate type water-cooled reactor. The parallel plate type water-cooled reactor is provided with iron cores, the iron core consists of two iron-silicon iron yokes which are arranged up and down and three groups of amorphous magnetic core columns which are positioned between the two iron-silicon iron yokes; each group of amorphous magnetic core columns is sleeved with a coil made of coil-coated film-coated copper foil; gaps I for inserting the water cooling plate are formed between the two ends of the inner coil in the length direction and the amorphous magnetic core column; gaps II for inserting water cooling plates are formed between the two ends of the outer ring coil in the length direction and the two ends of the inner ring coil in the length direction; the water cooling plate is tightly attached to the coil coated copper foil and the amorphous magnetic core column; a water inlet channel and a water outlet channel are arranged in the middle of the water-cooling plate; and a water segregator for simultaneously providing cooling liquid for the water cooling plates in the three coils by adopting a parallel water path mode is also arranged. The utility model solves the problem of heat dissipation of the traditional foil coil and the problem that the plate-type water-cooled reactor cannot work normally due to water leakage.
Owner:TEFUTE ELECTROMAGNETIC TECH (LUOYANG) CO LTD

Field alignment distance measuring tool

The utility model discloses a field alignment distance measuring tool, and belongs to the technical field of agricultural tools. A field alignment distance measuring tool comprises a telescopic pipe provided with a flexible rule and further comprises an adjusting ring which is connected to the telescopic pipe in a sliding mode, supports are rotationally connected to the periphery of the adjusting ring, a supporting piece is arranged on the telescopic pipe, when the adjusting ring slides on the telescopic pipe, the supporting piece is used for driving the supports to be unfolded and folded, and when the adjusting ring slides on the telescopic pipe, the supporting piece is used for driving the supports to be unfolded and folded. A positioning piece for controlling the sliding direction of the adjusting ring is arranged on the adjusting ring; through cooperation of the telescopic pipe, the support, the parallel plate, the scale marks and the rectangular through opening, the flexible ruler can be supported and guided, the input of manpower and material resources is reduced, the distance measurement accuracy of field alignment is improved, and then a worker can rapidly achieve multi-directional distance measurement in a field conveniently.
Owner:XINJIANG AGRI UNIV

Method for obtaining the dielectric constant of a dielectric sheet

ActiveUS20250341555A1Dielectric property measurementsCapacitance measurementsCapacitanceScanning capacitance microscopy
In a method for obtaining the dielectric constant of a dielectric sheet, a modulation voltage is applied to a semiconductor capacitor and a first parallel plate capacitor to measure a first scanning capacitance microscopy signal. Then, the first parallel plate capacitor is replaced with a second parallel plate capacitor to measure a second scanning capacitance microscopy signal corresponding to the semiconductor capacitor and the second parallel plate capacitor. Finally, the second parallel plate capacitor is replaced with a third parallel plate capacitor to measure a third scanning capacitance microscopy signal corresponding to the semiconductor capacitor and the third parallel plate capacitor. Based on the scanning capacitance microscopy signals and dielectric constants and the equivalent physical thicknesses of the dielectric sheets of the first parallel plate capacitor and second parallel plate capacitor, the dielectric constant of the dielectric sheet of the third parallel plate capacitor is obtained.
Owner:MSSCORPS CO LTD

Electrostatic stiffness-damping regulation and control method for MEMS (Micro Electro Mechanical System)

The invention discloses an MEMS electrostatic stiffness-damping regulation and control method, and belongs to the technical field of MEMS. The MEMS parallel plate capacitor structure and the RC element are connected in series to form an electrostatic rigidity-damping regulation and control element, and a pair of direct current driving voltage, alternating current driving voltage and carrier wave voltage with opposite symbols is applied to two groups of fixed polar plates of the differential parallel plate capacitor structure, so that displacement detection and resonance driving of an MEMS device can be realized at the same time; and the equivalent static stiffness and the equivalent static damping of the MEMS device can be regulated and controlled by adjusting the parameters of the MEMS parallel plate capacitor structure, the parameters of the RC element, the direct current driving voltage or the alternating current driving voltage. The MEMS static stiffness-damping regulation and control method is simple, driving voltage signal leakage can be restrained when the MEMS is used as a resonance driver, and meanwhile the MEMS static stiffness-damping regulation and control method can be compatible with MEMS device structural design.
Owner:ZHEJIANG UNIV

Device for assembling male hinge and female hinge between weak-rigidity large cabins and using method

The invention provides a device for assembling male and female hinges between weak-rigidity large cabins and a using method, the device comprises an upper disc and a lower disc, the upper disc and the lower disc are correspondingly provided with butt joint hole making structures with consistent structures, and the upper disc and the lower disc are respectively provided with a male hinge positioning structure and a female hinge positioning structure; the male hinge positioning structure comprises a male hinge positioning block, the female hinge positioning structure comprises a female hinge positioning block, the male hinge positioning block comprises two parallel plates, and when the female hinge positioning block is inserted into the male hinge positioning block, the male hinge positioning block and the female hinge positioning block are fastened through the stop shaft simulation piece and the self-made bolt simulation piece and can be attached to each other. Parallel independent assembly of a fairing male hinge and a two-sublevel cabin female hinge and drilling of butt joint holes of a satellite fairing and a two-sublevel cabin can be achieved, the absolute position precision of the male hinge and the female hinge can be guaranteed, the influence that the production cycle of the two-sublevel cabin is limited by the production cycle of the fairing is solved, and the production efficiency of the two-sublevel cabin is improved. And respective batch production of the satellite fairing and the two-sublevel cabin is realized.
Owner:SHANGHAI AEROSPACE EQUIPMENTS MANUFACTURER CO LTD