113results about "Screening rooms/chambers" patented technology

The invention discloses an EMC filtering electromagnetic shielding structure which comprises a machine shell, a shielding wall, a top cover arranged on the machine shell, a filtering assembly and a main power assembly, the filtering assembly and the main power assembly are arranged in the machine shell, and a filtering cavity and a main power cavity which are separated by the shielding wall are arranged in the machine shell. The filtering assembly is arranged in the filtering cavity, the main power assembly is arranged in the main power cavity, and the shielding wall and the top cover are in metal connection with an electromagnetic shielding effect. The EMC filtering electromagnetic shielding structure has the advantage of being good in electromagnetic shielding effect. The invention further provides a vehicle-mounted charger adopting the EMC filtering electromagnetic shielding structure.

In some implementations, a conductive concrete composition for providing improved shielding against electromagnetic radiation comprises cement, one or more supplementary materials, aggregates, one or more carbon products, and fibers. In some implementations, the composition comprises between about 5% and about 40% by weight of cement, between about 1% and about 20% by weight of one or more supplementary materials, between about 5% and about 80% by weight of aggregates, between about 1% and about 40% by weight of one or more carbon products, and between about 1% and about 10% by weight of fibers. In some embodiments, the one or more supplementary materials comprises ground granulated blast furnace slag (GGBS), the one or more carbon products comprises graphite, and the fibers comprise steel fibers. The aggregates can include normal weight, lightweight, and / or fine aggregates.

A portable shelter with electromagnetic interference (EMI) protection includes a plurality of walls that define an interior space. The walls can be fixed or movable. An EMI protected edge connector joins at least two of the walls together. The EMI protected edge connector assembly can be fixed or hinged. The edge connector can include a metallic outer edge member with two legs and a separate metallic inner edge member with two legs to define an edge channel therebetween with: (i) the first outer leg and the first inner leg are arranged parallel and spaced-apart relative to each other; and (ii) the second outer leg and the second inner leg arranged parallel and spaced-apart relative to each other. The shelter walls can include an inner surface covered by a metallic foil inner layer. A first wall panel is received in a first portion of the edge channel with its metallic foil inner layer contacting the inner edge member and a second wall panel is received in a second portion of the edge channel with it metallic foil inner layer contacting the inner edge member.

GaAs IR window slabs having largest dimensions that are greater than 8 inches, and preferably greater than 12 inches, are grown using the Horizontal Gradient Freeze (HGF) method. Heat extraction is simplified by using a shallow horizontal boat that is only slightly deeper than the desired window thickness, thereby enabling growth of large slabs while also minimizing material waste and fabrication cost as compared to slicing and shaping thick plates from large, melt-grown boules. Single crystal seeds can be used to optimize the final orientation of the slabs and minimize secondary nucleation, thereby maximizing yield. A conductive doped GaAs layer can be applied to the IR window slab to provide EMI shielding. The temperature gradient during HGF can be between 1° C. / cm and 3° C. / cm, and the directional solidification can be at a rate of between 0.25 mm / h and 2.5 mm / h.

A door assembly provides EMC shielding to provide EMI / RFI protection. The door assembly has an EMC door frame, an EMC door, and EMC seals for maintaining a circuit between the door frame, the floor (e.g., threshold, flooring, etc.), and / or the door. The door assembly may also utilize one or more EMC elements (e.g., EMC tape, paint, adhesive, coatings, caulk, etc.) that may be used to create the circuits between the components of the door assembly and / or with other components of the building (e.g., between the door frame and the wall). The EMC shielding is used to reduce (e.g., limit, block, etc.) the levels of electrogenic interference (EMI) / radio frequency interference (RFI) radiation that is able to pass by the shielding. Moreover, the door assembly also provides improve additional door assembly performance (e.g., sound, weather, air flow, heat, cold, or the like abatement, energy harvesting, or other performance benefits).

An enclosure to protect people and instruments from the effects of an electromagnetic pulse (EMP) is provided. The enclosure includes a floor assembly; walls extending upward on a first, second, third, and fourth side of the floor assembly; a roof; and a ceiling. On the interior of the enclosure, a shield layer is provided such that the enclosure forms a six-sided Faraday cage. Fasteners and other conductive securement materials such as copper tape help achieve the conductivity of the shield layer. Extending through the walls of the enclosure may be secure points of entry allowing for people, air, and conductors to securely enter and exit the enclosure. The enclosure contains a grounding system to assist with protecting the contents of the enclosure from the effects of the EMP.

The invention relates to the technical field of electromagnetic shielding rooms, and discloses a load-bearing framework and shielding panel integrated electromagnetic shielding room, which comprises a first structural shielding unit and a second structural shielding unit, the first structural shielding unit and the second structural shielding unit are alternately arranged, the first structural shielding unit comprises a first load-bearing framework, and the second structural shielding unit comprises a second load-bearing framework. The first structural shielding unit comprises a first load-bearing frame, the second structural shielding unit comprises a second load-bearing frame, the edges of the adjacent first load-bearing frame and second load-bearing frame are spliced through a multi-dimensional interlocking structure, so that an electromagnetic shielding room load-bearing framework is defined, and the splicing seam of the first load-bearing frame and the second load-bearing frame is provided with at least one zigzag electromagnetic wave attenuation path. The load-bearing frames and the electromagnetic shielding function are deeply integrated, the first load-bearing frame and the second load-bearing frame are mechanical load-bearing components, electromagnetic shielding is achieved through zigzag electromagnetic wave attenuation paths of the splicing seams and the magnetic conductive filling materials, an independent shielding framework does not need to be additionally arranged, and the overall structure is simplified.

The invention discloses an EMC filtering electromagnetic shielding structure which comprises a metal casing, a shielding wall integrally formed with the casing, a cover plate arranged on the casing, a filtering assembly and a main power assembly, the filtering assembly and the main power assembly are arranged in the casing, and a filtering cavity and a main power cavity which are separated by the shielding wall are arranged in the casing. The filtering assembly is arranged in the filtering cavity, the main power assembly is arranged in the main power cavity, and the shielding wall is in interference contact connection with the cover plate. The EMC filtering electromagnetic shielding structure has the advantages of being good in electromagnetic shielding effect and low in cost. The invention further provides a vehicle-mounted charger adopting the EMC filtering electromagnetic shielding structure.

The invention belongs to the technical field of environment detection equipment, and particularly relates to an environment detection vehicle, a leveling method, a terminal and a storage medium, the environment detection vehicle comprises an undercarriage, a vehicle body arranged on the undercarriage and an air suspension arranged between the vehicle body and the undercarriage, a driving cabin and a working cabin are arranged in the vehicle body, and an environment detection platform is arranged in the working cabin; a vehicle body leveling mechanism is mounted at a girder of the undercarriage, and the vehicle body leveling mechanism and the air suspension are both connected with a master controller in the environment detection platform; according to the environment detection vehicle, the vehicle body leveling mechanism is installed at the undercarriage girder and works in cooperation with the air suspension, and the environment detection vehicle can keep the height of the vehicle body stable and horizontal under various complex terrain conditions. By means of the design, vehicle body shaking caused by uneven ground is effectively reduced, it is ensured that the environment detection platform can obtain more accurate data in the operation process, and the accuracy and reliability of environment monitoring are improved.

A Faraday tent apparatus includes a framework and an enclosure with a door. The enclosure includes a doorway panel having a doorway. The door is movable between open and closed configurations. When the door is in the closed configuration, the Faraday tent apparatus shields an internal compartment from RF and EMI communication with an ambient environment external to the enclosure. The doorway panel has a magnetically-engageable jamb portion. The door has door panel with a magnetically-engageable jamb interface portion extending about a periphery of the door panel. The jamb portion and the jamb interface portion are configured to be in mutual magnetic engagement when the door is in the closed configuration. The jamb interface portion may include a series of nested magnetic tracks. The door includes laterally-extending door stiffener panels sequentially arranged between a door lower end and a door upper end. Associated manufacturing methods are also disclosed.

A magnetically compatible device capable of remotely switching optical filters comprises an outer box, an inner box and an optical filter clamp movable block which are sequentially nested from outside to inside, and the two-stage nesting relation is airtight and tightly attached and can slide mutually. The inner box divides an inner cavity of the outer box into two X-direction airtight cavities, and the optical filter clamp movable block divides the inner cavity of the inner box into two Y-direction airtight cavities; the two Y-direction airtight cavities are respectively communicated with an external air source of the inner box through second air pipe joints, and the Y-direction side wall of the outer box is provided with an air pipe joint guide groove; the two X-direction airtight cavities are respectively communicated with an air source outside the outer box through first air pipe joints; first light holes are formed in the bottom of the outer box; two second light-transmitting holes distributed in the X direction are formed in the bottom of the inner box, and when the inner box slides, the two second light-transmitting holes are aligned with the first light-transmitting holes respectively; when the optical filter clamp movable block slides to the two sides for limiting in the Y direction, the different optical filter fixing grooves are aligned with the second light holes respectively. According to the invention, the optical filter switching can be remotely operated.

In some implementations, a conductive concrete composition for providing improved shielding against electromagnetic radiation comprises cement, one or more supplementary materials, aggregates, one or more carbon products, and fibers. In some implementations, the composition comprises between about 5% and about 40% by weight of cement, between about 1% and about 20% by weight of one or more supplementary materials, between about 5% and about 80% by weight of aggregates, between about 1% and about 40% by weight of one or more carbon products, and between about 1% and about 10% by weight of fibers. In some embodiments, the one or more supplementary materials comprises ground granulated blast furnace slag (GGBS), the one or more carbon products comprises graphite, and the fibers comprise steel fibers. The aggregates can include normal weight, lightweight, and / or fine aggregates.

The invention relates to the field of electron microscope chamber electromagnetic shielding, and provides a high-precision electron microscope chamber combined shielding method, which comprises the following steps: S1, simulating an electron microscope operation experiment environment to carry out initial state magnetic field measurement, and respectively testing direct current and alternating current magnetic field environment values; s2, adopting a low-carbon steel plate as a shielding shell, and calculating the thickness of the shielding shell based on the tested magnetic field environment value and the target value of the magnetic field environment of the electron microscope equipment; s3, after welding of the shielding shell and installation of the shielding door and the waveguide window are completed, shielding testing is carried out, reinforcing treatment is carried out on weak points and magnetic leakage points, the waveguide window comprises a magnetic waveguide tube and a hexagonal honeycomb vacuum brazing waveguide window, and the magnetic waveguide tube comprises a shell and a grating; and S4, setting an active shielding system, correcting an electron microscope experiment magnetic field environment deviation in an actual operation stage, simultaneously satisfying magnetic field and electromagnetic shielding, optimizing a waveguide window structure, and simultaneously satisfying low-frequency and high-frequency electromagnetic wave shielding.

The invention discloses an electromagnetic shielding shell of an electromagnetic shielding room, which belongs to the technical field of electromagnetic shielding and comprises an electromagnetic shielding room body, a plurality of electromagnetic shielding shells are arranged in the electromagnetic shielding room body, and thermal power generation components and temperature sensors are mounted in the electromagnetic shielding shells. A multi-layer composite shielding structure is formed by the wave-absorbing cone, the phase regulation corrugated plate and the lattice-like lining layer, a broadband absorption system with complementary functions is formed, waste heat can be converted into electric energy by arranging the thermal power generation assembly, the temperature sensor and the ventilation groove, self-sustaining electric power is provided for the temperature sensor, and the temperature sensor is protected from being damaged. The state of the wave-absorbing material is evaluated in real time by analyzing temperature data, health early warning and preventive maintenance are achieved, the lattice-like lining layer can adjust lattice parameters to customize electromagnetic performance, the porous structure gives consideration to mechanical performance and shielding effect, the weight of the shell can be reduced, and the structural adaptability of the shell can be improved.

The invention relates to the technical field of building wall electromagnetic shielding, and particularly discloses an electromagnetic shielding method for a building wall, which comprises the following steps of: S1, determining an axis, and releasing a middle line and a side line of the wall by taking the axis as a datum line; insulating plates are laid on the floor, a keel frame is built according to the paying-off position, and the keel frame is fixedly installed on the wall and the ceiling through insulating parts; the keel frame is electrically isolated from the building main body through the insulating plate and the insulating part; s2, opening holes used for installing a shielding door and a shielding window are formed in the keel frame, and a shielding plate is installed on the ground insulation plate and the keel frame; conductive linings are arranged at connection gaps among the keel frame, the shielding plate, the shielding door and the shielding window, and the conductive linings enable the shielding structures to form a continuous conductive shielding surface.

The invention relates to an architectural assembly comprising: - at least one concrete panel reinforced with conductive fibers, and lacking a conductive mesh for electromagnetic shielding, - at least one conductive mesh arranged on at least one face of the at least one concrete panel, forming a shield against electromagnetic radiation, characterized in that the concrete panel comprises concrete comprising at least a portion of conductive fibers having a length between 30 and 80 millimeters and a slenderness ratio between 80 and 200. Figure to be published with the abstract: Fig. 5

This electromagnetic wave absorption device (2) is internally provided with: - a first compartment (4) and a second compartment (6) juxtaposed and electrically insulated from one another, - a plurality of solid bodies (14) housed in the first compartment (4), each solid body (14) being formed of an electrically insulating material (16) coated with an electrically conductive material (18), and - at least one layer of electromagnetically compatible fabric (20) housed in the second compartment (6). Figure for the abstract: Fig 1

The present invention relates to a subsea substation system (100) comprising: an oil-filled water impermeable enclosure (102); an AC-transformer (104), and at least one overcurrent device (106a-d) electrically connected to the AC- transformer (104), the at least one overcurrent device, the AC-transformer, and the electrical connections (108, 136, 138) between them are accommodated in the oil-filled water impermeable enclosure, wherein the enclosure comprises thermal zones (110, 112) within the enclosure, wherein the AC-transformer is arranged in a first thermal zone and the overcurrent devices are arranged in a second thermal zone of the enclosure, a thermal layer (111) separate the first thermal zone and the second thermal zone, the at least one thermal layer is configured to allow oil flow between the thermal zones while reducing heat flow between the zones.

An exemplary semiconductor processing chamber can include a chamber body. The chamber can include a substrate support assembly disposed within the chamber body. The chamber can include a substrate support assembly having a support plate seated atop a support column. The chamber can include a radio frequency (RF) shield seated atop the chamber body and extending around a peripheral edge of the support plate. The RF shield can include a lower annular member. The RF shield can include an upper annular member seated atop the lower annular member. The upper annular member can define a lip projecting radially outward from an outer surface of the upper annular member. Each of the lower annular member and the upper annular member can include a dielectric material.

The present invention discloses a high-density polyethylene shielding cabin and an installation method, which relates to the technical field of shielding cabins, including a high-density polyethylene shielding cabin body and an actively adjustable shielding sandwich assembly, wherein the high-density polyethylene shielding cabin body includes six stacked layer plate assemblies and a plurality of layer plate joint shielding assemblies. The present invention first determines the production accuracy requirements of each high-density polyethylene board through basic theories such as heat transfer and finite element analysis. The use of a stacking method without through-seams can avoid the cross-sectional through-seam from reducing the shielding effect. The layer plate joint shielding assembly is installed at the joint of two adjacent stacked layer plate assemblies, which greatly enhances the shielding effect at the joint and greatly strengthens the strength of the high-density polyethylene shielding cabin body; the use of an actively adjustable shielding sandwich assembly is used to deal with different strong interference sources that may appear in the later stage, and a replaceable liquid shielding layer is used to achieve active directional shielding of strong interference sources, which is easy to disassemble and has an outstanding shielding effect.

A semiconductor element according to embodiment of the inventive concept may include a first glass plate having a first surface and a second surface opposing the first surface, a metal frame surrounding an edge of the first glass plate, the metal frame being electrically connected to a ground line, a first transparent conductive layer provided on the first surface of the first glass plate, and a circuit block provided on the first surface of the first glass plate and spaced apart from the first transparent conductive layer. The first transparent conductive layer may have a lattice structure in which first unit lattices are arranged along one line, and an entire length of the one line may be about 0.25 times to about 0.50 times a wavelength λ of an electromagnetic wave to be blocked.

A sliding door system having one or more sliding doors, door frames (e.g., static frames of different sizes for different wall thicknesses or adjustable frames that can be used to fit different wall thicknesses), sliding door hardware (e.g., tracks, wheels, soft closers, stops, or the like), header, door receiver, a plurality of seals, or the like. The sliding door system utilizes improvements to the components in order to provide security features, such as electromagnetic (EMC—EMI / RFI) shielding, sound resistance, blast resistance, forced entry and / or ballistic resistance, privacy features, light reduction, fire and / or smoke resistance, or the like to the sliding door system. In particular, the sliding door system allows for the use of the security features with the static or adjustable door frames described herein.

The invention relates to a curtain (31) for shielding an electromagnetic field, comprising a plurality of strip elements (33), wherein a first strip element and a second strip element of the plurality of strip elements (33) have an electrically conductive layer (38), and wherein the electrically conductive layer (38) of the first strip element is electrically connected in a shielding configuration of the curtain (31) to the electrically conductive layer (38) of the second strip element and / or to an electrical connection for a reference potential, wherein the plurality of strip elements (33) are variably positionable relative to one another. The invention further relates to a shielded enclosure with a curtain (31) according to the invention and to a magnetic resonance system with a shielded enclosure according to the invention.

An EMI shielding and acoustic attenuation door frame and door system, including: a door connected to a door frame with a hinge, the door including a bottom portion having a plate, a door gasket, a door sponge, and conductive tape for grounding the door; the door frame including: a jamb section including: a jamb main frame; a jamb back frame; wherein the jamb main frame and back frame being adjustable along the wall; a layered jamb gasket at least partially in between the door frame and the jamb main frame; a flanged magnetic jamb gasket fixed to an acoustical retainer with a fastener; wherein the door is grounded when the door is in a closed position against the door frame; a sill section including: a spreader bar having at least one sill gasket covered by a threshold, the spreader bar and at least one sill gasket contacting a floor shielding.

The present application relates to a kind of anti-fragment penetration assembled electronic signal shielding room, construction method, the shielding room includes: multiple wallboard modules, each is sequentially fixedly connected with ceramic composite impact layer, ribbed steel plate bearing layer, honeycomb buffer layer and first electromagnetic shielding layer from outside to inside, multiple wallboard modules head-to-tail butt joint;Top plate module is at least provided with second electromagnetic shielding layer, and top plate module is adaptively butted with the top of multiple wallboard modules;Bottom plate module is at least provided with third electromagnetic shielding layer, and bottom plate module is adaptively butted with the bottom of multiple wallboard modules;Hydraulic locking mechanism is arranged at the butt joint of adjacent wallboard module, wallboard module and top plate module and wallboard module and bottom plate module;Multiple wallboard modules and top plate module and bottom plate module cooperatively form closed shielding room.The present application realizes the coordination of anti-fragment penetration protection, electromagnetic shielding integrity and quick assembly construction, improves the structural reliability and shielding stability in high-risk environment.

A frame may comprise three or more portions comprising an upper portion disposed adjacent an upper end of an opening and two side portions disposed along either edge of the opening, and in some cases a lower portion adjacent a lower end of an opening. A first frame segment and the second frame segment are adjustable with respect to each other in order to extend around the thickness of the opening. A third segment, such as a soffit segment may be utilized to cover at least a portion of the segments. The first frame segment, the second frame segment, and / or the soffit segment may have one or more barriers located between portions of the segments. The first frame segment may be adjusted with respect to the second frame segment, and the adjustment may be made before or after activation of the one or more barriers.

The present invention improves radio wave propagation of mobile communication in production facilities such as factories and workshops. An electromagnetic wave reflecting device is provided with: a panel having a reflecting surface that reflects an electromagnetic wave of a desired frequency band selected from the frequency bands of 1-170 GHz; and a support body that supports the panel, the support body having a connection portion that is electrically connected to the reflection surface, and the connection portion transmitting a reference potential of a reflection phenomenon in the reflection surface.

Magnetic field shielding mat with at least one wire-shaped conductor having a conductor core made of an electrically conductive material and electrical insulation made of an electrically insulating material surrounding the conductor core at least in part, and at least two planar conductor loops formed from the conductor, wherein the at least two conductor loops are at least mechanically connected to each other in the manner of an endless tape.