37results about How to "Small envelope" patented technology

The present disclosure pertains to a rotationally triply symmetric three axis magnetic antenna system having substantial isolation among the three axes, including a three axis skew orthogonal magnetic antenna system and device utilizing the antenna system. The antenna system comprising three substantially identical magnetic antenna elements disposed symmetrically about a reference point such that the magnetic axes from the three antenna elements are orthogonal to one another in direction and do not intersect one another. The three antenna elements are positioned in a substantial cross coupling null from one another to minimize cross coupling. The arrangement yields packaging efficiency for compact electronic devices. A 1, 1, diameter embodiment is disclosed. A location system utilizing the antenna system is disclosed. Methods for producing the antenna are disclosed. A moldable triple coil holder for the antenna system is described.

An adjustable sliding privacy screen for a premium class passenger suite may include a guide rail mounted to a wall partition. The adjustable sliding privacy screen may also include a yaw / roll adjustment bracket slidingly attached to the guide rail and to the screen. The yaw / roll adjustment bracket may include a flanged adjustment screw for adjusting the yaw and roll of the screen and a locking screw for securing the yaw and roll adjustment of the screen. The screen may also include a ball joint adjustment bracket slidingly attached to the guide rail and to the screen. The ball joint adjustment bracket may include a ball joint and adjustment screw for adjusting the pitch of the screen and a locking nut for securing the pitch adjustment of the screen. The device of the present invention thus allows for the adjustment of the yaw, roll, and pitch of the screen.

The invention provides a low-orbit load platform separated remote sensing microsatellite configuration including a platform metal frame plate structure, a load bracket integrated structure, a frame separation mechanism, a plate type solar wing deployment mechanism and various devices. In a frame plate type structure, similar to a conventional base plate, side plate and top plate type structure, all structural plates adopt a thin metal plate + rib + lightening design; the whole structure adopts the base plate as the design and assembly standard, and a main force transferring route is from the base plate, to the side plate, to the top plate and then to the load. The load bracket integrated structure is mounted on a satellite top plate. A bracket can be connected to the top plate, the bracketcan be provided with a partial air-oriented device and can also be connected to a solar wing, the solar wing includes a one-fold fixing and two-folding unfolding type solar wing, and the solar wing is connected to the satellite side plate and the top plate bracket mainly through a fixing type solar wing. The microsatellite configuration has high space utilization, compact structure and small size, the final assembly process is good in openness, the test is convenient, and the configuration is not adjusted under the conditions of replacing the load of the same magnitude.

The invention provides chitosan-modified methazolamide solid lipid nanoparticles and a preparation method thereof. The chitosan-modified methazolamide solid lipid nanoparticles can be used as eye drops. The preparation method is suitable for industrial production. The chitosan-modified methazolamide solid lipid nanoparticles are characterized in that based on 30ml of a nanoparticle-containing solution, the chitosan-modified methazolamide solid lipid nanoparticles comprise 5mg of methazolamide, 25 to 150mg of at least one lipid material, 25 to 150mg of phospholipid, 5 to 100mg of chitosan, 50 to 250mg of at least one non-phospholipid surfactant and 50 to 250mg of at least one assistant surfactant. The chitosan-modified methazolamide solid lipid nanoparticles have small particle sizes and high drug entrapment efficiency. Compared with solid lipid nanoparticles which are not modified by chitosan, the chitosan-modified methazolamide solid lipid nanoparticles have higher stability and better corneal permeability because of positive charges on the surfaces of the chitosan-modified methazolamide solid lipid nanoparticles so that drug bioavailability is improved. Therefore, the chitosan-modified methazolamide solid lipid nanoparticles have a large clinical application potential in glaucoma treatment.

An adjustable sliding privacy screen for a premium class passenger suite may include a guide rail mounted to a wall partition. The adjustable sliding privacy screen may also include a yaw and roll adjustment bracket slidingly attached to the guide rail and to the screen. The yaw and roll adjustment bracket may include a flanged adjustment screw for adjusting the yaw and roll of the screen and a locking screw for securing the yaw and roll adjustment of the screen. The screen may also include a ball joint adjustment bracket slidingly attached to the guide rail and to the screen. The ball joint adjustment bracket may include a ball joint and adjustment screw for adjusting the pitch of the screen and a locking nut for securing the pitch adjustment of the screen. The device of the present invention thus allows for the adjustment of the yaw, roll, and pitch of the screen.

The present disclosure pertains to a rotationally triply symmetric three axis magnetic antenna system having substantial isolation among the three axes, including a three axis skew orthogonal magnetic antenna system and device utilizing the antenna system. The antenna system comprising three substantially identical magnetic antenna elements disposed symmetrically about a reference point such that the magnetic axes from the three antenna elements are orthogonal to one another in direction and do not intersect one another. The three antenna elements are positioned in a substantial cross coupling null from one another to minimize cross coupling. The arrangement yields packaging efficiency for compact electronic devices. A 1, 1, diameter embodiment is disclosed. A location system utilizing the antenna system is disclosed. Methods for producing the antenna are disclosed. A moldable triple coil holder for the antenna system is described.

The invention discloses a wheel-leg composite type robot moving device and a wheel-leg composite type robot. The wheel-leg composite type robot moving device comprises an installation part used for being connected with a robot body, a crotch joint driving part, a hip joint driving part, a first rod, a second rod, an ankle joint driving part, a wheel driving part and wheels, wherein the crotch joint driving part, the hip joint driving part, the first rod, the second rod, the ankle joint driving part, the wheel driving part and the wheels are connected successively in series. The second rod andthe ankle joint driving part are in fixed connection and other parts are in rotating connection. The installation part is connected with the crotch joint driving part. The crotch joint driving part isused for driving the hip joint driving part to rotate around the axis of the output end of the crotch joint driving part. The hip joint driving piece is used for driving the first rod to rotate around the axis of the output end of the hip joint driving piece. The ankle joint driving piece is used for driving the ankle joint driving piece to rotate around the axis of the output end of the ankle joint driving piece. The wheel driving piece is used for driving the wheel to rotate around a rotating shaft of the wheel. Compared with a traditional wheel leg type moving device, the wheel-leg composite type robot moving device has advantages that the number of joints is smaller, and control is simpler.

The invention relates to an RF quadrupole (RFQ) accelerator and an acceleration method thereof. The accelerator comprises a radial matching section, a forming section, a low energy receiving section and an acceleration section according to a change rule of basic parameters. The low energy receiving section is used for bunching a beam from the forming section. In the bunching process, a low energy acceptance is achieved by configuring a low modulation factor and slowly increasing the modulation factor, and 2% to 3% of the beam is lost by the low energy acceptance. The accelerator deliberately loses a small portion of the beam (the transmission efficiency is still higher than 95%), so that the lost beam cannot obtain the energy gain and is lost at the low energy, thereby significantly reducing the damage of the lost beam to an RFQ accelerator electrode. The acceleration section of the accelerator further includes an energization section and a conventional acceleration section, and the forming section obtains a lower longitudinal emittance, thereby obtaining a clean high-quality beam at an RFQ accelerator exit.

The invention provides a carbon fiber thin-wall cylinder type main supporting structure of a large-aperture space camera, which comprises a secondary mirror truss assembly and a front cylinder assembly, wherein the secondary mirror truss assembly comprises a secondary mirror connector, three secondary mirror truss rods, a plurality of truss rod left clamping blocks and a plurality of truss rod right clamping blocks, the lower surface of the secondary mirror connector is provided with a secondary mirror assembly interface, the front cylinder assembly comprises a cylinder body, longitudinal bars, a longitudinal bar upper connector and a longitudinal bar lower connector, an upper flange is arranged at the upper end of the cylinder body, and a lower flange is arranged at the lower end of the cylinder body; the three longitudinal bars are evenly arranged on the outer wall of the cylinder body, the side wall of one end of each secondary mirror truss rod is bonded with the corresponding bonding installation face of the side wall of the secondary mirror connector, the other end of each secondary mirror truss rod is connected with the top surface of the upper flange through the truss rod left clamping block and the truss rod right clamping block, and the connecting positions of the three longitudinal bars and the upper flange and the connecting positions of the three secondary mirror truss rods and the upper flange are arranged in an up-down one-to-one correspondence mode. The invention provides a main supporting structure considering shading and force transmission paths. The structure is small in outer envelope, high in specific stiffness and light in weight.

The invention provides a 2SPS+RRPRR robot grabbing mechanism used for plate splicing. The 2SPS+RRPRR robot grabbing mechanism comprises an upper platform, a lower platform and three branched chains, wherein a first branched chain and a second branched chain of the three branched chains are of 2SPS forms; the third branched chain is of a RRPRR form, and namely consists of a first rotary pair, a second rotary pair, a second translation pair, a fourth translation pair and a fifth rotary pair which are sequentially connected; the upper platform and the lower platform are separately positioned at the two ends of the first branched chain and the second branched chain; series-connection mechanical arms which are rotatably connected are separately arranged on the upper platform and the lower platform; and tail end tools for picking plates are separately arranged on the upper rotary pair, the lower rotary pair as well as the tail ends of the series-connection mechanical arms. The RRPRR branched chains are arranged, so that envelope of the mechanism body is reduced, and implementation of space operation is facilitated better. The series-connection mechanical arms are additionally arranged, so that the working space of the mechanism is expanded, and operating and monitoring capability of the mechanism is strengthened.

Provided is a growth process capable of reducing barium boron oxide (BBO) crystal envelope. According to the growth process, barium carbonate and boric acid are adopted as main raw materials, sodium fluoride is a fluxing agent, a self-made molten salt furnace and a platinum crucible are growth devices, the bottom of the platinum crucible is in a recessed arc shape, and low temperature phase BBO crystal growth by a flux method is performed. The bottom of the platinum crucible is in the recessed arc shape, melt convection is reinforced, and the BBO crystal envelope is effectively reduced.

A modular energy storage system within a vehicle, wherein the energy storage system comprises a plurality of discrete energy storage units which are movable within the vehicle and selectively securable in a variety of positions.

Sensing in an elevated-temperature environment is provided using a sensor system having a sensor housing with an exterior wall with a window-support region having an outwardly facing external face, and a window through the window-support region of the exterior wall and affixed to the exterior wall. A sensor unit contained within the sensor housing receives an input signal through the window. A thermal-insulation layer is on the external face of the window-support region of the exterior wall at a location immediately adjacent to the window. The sensor system is operated in an environment wherein the window-support region of the exterior wall is heated to a temperature of greater than about 100° C. in the event that no thermal-insulation layer is present. In a typical application, the sensor system is attached to an aircraft such that the external face is in a forward-facing orientation, and the aircraft is operated such that the external face is heated by aerodynamic heating.

A chair is provided with a seat support frame which may be comprised of at least two tubes spaced apart by a polymer connector. The seat support frame supports a foam cushion and the frame may be embedded in the foam and may include flexible supports across the support frame also embedded in the foam. A rigid panel has a cavity and the rigid panel is arranged adjacent an outer surface of said foam cushion with at least part of said foam cushion positioned within the cavity, wherein said rigid panel is affixed to said support frame and an inner surface of said rigid panel faces the outer surface of said foam cushion.

The present invention is directed toward an apparatus for continuous speed variation of an output member with respect to a primary input member. In particular, the present invention provides a device having an output that rotates at reduced speed and increased torque relative to its prime input through the low friction, rolling engagement of its members, or alternatively, at increased speed and reduced torque for overdrive applications. Furthermore, the speed of the output member may be varied continuously and infinitely between the apparatus's lowest and highest ratio via a secondary input member and its low friction, rolling engagement with the device's members.

A modular energy storage system within a vehicle, wherein the energy storage system comprises a plurality of discrete energy storage units which are movable within the vehicle and selectively securable in a variety of positions.

An air inlet valve including a housing with an opening, a cover plate and a centered rod for connecting the cover plate to the housing, wherein the air inlet valve furthermore includes a check valve plate made from a flexible sheet material and in which is provided at least one slot, extending from an outer perimeter of the check valve plate and towards center, and a central opening suitable for holding the check valve plate firmly on the centered rod, such that the check valve plate can be held firmly on the rod between the opening in the housing and the cover plate when the air inlet valve is assembled.

The invention discloses a method for reducing the BBO crystal intermediate enveloping. A special-shaped crucible with the cone-shaped crucible bottom is used for growth, so that the problem of BBO crystal intermediate enveloping is effectively reduced.

The invention discloses a sliding unfolding system suitable for a large space fixed-surface antenna. The sliding unfolding system comprises a fixed-surface antenna, a drive sliding system, unlocking devices and locking mechanisms, wherein the fixed-surface antenna is a plane or a cylindrical paraboloid after being unfolded and is formed by stacking a plurality of equant panels; the drive sliding system comprises a motor, a steel wire rope, a rope winding drum, fixed pulleys, idler wheels and transition blocks; the unlocking devices include interlayer unlocking devices, the transition blocks and interplate unlocking devices; the locking mechanisms are interplate locking mechanisms; various panels are unfolded and then connected through the interplate locking mechanisms; the rope winding drum is arranged at one end of the lowest panel; the motor drives the rope winding drum to rotate; and the rope winding drum, the steel wire rope and the fixed pulleys form a series drive system. The fixed-surface antenna is sequentially deployed by adopting a series order; a traditional hinged unfolding mode is broken; the closing space is reduced to adapt to carrying enveloping; and the sliding unfolding system has the characteristics of being small in overall envelope, few in drive sources, small in locking impact and high in locking rigidity.

The invention provides a carbon fiber thin-walled cylindrical main support structure for a large-caliber space camera, which includes a secondary mirror truss assembly and a front barrel assembly. The secondary mirror truss assembly includes a secondary mirror joint, three secondary mirror truss rods, and a plurality of truss rod left clamping blocks and a number of truss rod right clamps, a secondary mirror assembly interface is arranged on the lower surface of the secondary mirror joint, the front barrel assembly includes a barrel body, a longitudinal rib, a longitudinal rib upper joint and a longitudinal rib lower joint, and the upper end of the barrel body is arranged with upper flanges , the lower end of the barrel body is arranged with a lower flange; three longitudinal ribs are arranged, which are evenly arranged on the outer wall of the barrel body, and the side wall of one end of each secondary mirror truss rod is bonded to the corresponding bonding mounting surface of the side wall of the secondary mirror joint, and the other One end is connected to the top surface of the upper flanging through the left clamping block of the truss rod and the right clamping block of the truss rod. The present invention is a main support structure that takes into account both light shading and force transmission paths. The structure has a small outer envelope, high specific stiffness and light weight.

The invention relates to a crystal growth method for reducing absorption of an LBO crystal body and a crystal prepared by the crystal growth method. According to the method, boric acid and lithium carbonate are used as raw materials, a kidney-shaped platinum crucible and a platinum seed crystal rod are used as growth devices, the platinum seed crystal rod is provided with a plurality of parallel and obliquely upward platinum sheets, and the kidney-shaped platinum crucible is of an up-down and left-right axisymmetric structure with a small middle part and two large ends According to the invention, the plurality of parallel platinum sheets are arranged on the platinum seed crystal rod to dissipate heat of the platinum rod, so that the absorption value is reduced; the platinum sheets are designed in an upward inclined manner, so that seeding of the seed crystal and observation of the crystal growth process are not influenced, and volatile matters are prevented from falling into the platinum sheets; and a special temperature field formed by the large two ends and the small middle part of the specially-designed kidney-shaped platinum crucible is utilized, so that the influence of a specific platinum seed crystal rod on the temperature field is avoided, meanwhile, melt flowing is accelerated, the viscosity of a boric acid system is reduced, crystal enveloping is reduced, and the crystal quality is improved.

The invention discloses a miniaturized space laser communication terminal optical system and a using method. The optical system cleverly arranges the telescope unit and the relay optical path unit in the space where the coordinate system is XYZ, and utilizes the functions of the telescope folding mirror in the telescope unit, the turntable folding mirror, and the relay folding mirror of the relay optical path unit. The three reflections constitute the two-dimensionally rotating pitch axis and azimuth axis, and the telescope unit realizes the pointing and aiming of the optical system by rotating around the pitch axis and the azimuth axis. In terms of spatial layout, the telescope unit is arranged above or below the relay optical path unit. By arranging the reflectors and beam splitters of the relay optical path unit, the optical devices in the relay optical path unit are distributed on both sides of the beam entrance, thereby compressing The size of the relay optical path is reduced, so that the projection envelope of the relay optical path on the XY plane is equivalent to that of the telephoto system, reducing the envelope size of the entire system and realizing a miniaturized design.

The invention relates to a method for transferring a non-positioning identification train between area controllers, which comprises the following steps of: checking train information and safety positioning information of a positioning identification train, a non-positioning identification train and a non-communication train in an overlapping area of the area controllers on the basis of communication between the area controllers; all train information is transferred among the area controllers, and meanwhile the relation between the train sequence and the related information of the positioning recognition train, the non-positioning recognition train and the non-communication train is transmitted and reserved. Compared with the prior art, the system has the advantages of high safety, high driving efficiency and the like.

The invention provides a 2SPS+RRPRR robot grabbing mechanism used for plate splicing. The 2SPS+RRPRR robot grabbing mechanism comprises an upper platform, a lower platform and three branched chains, wherein a first branched chain and a second branched chain of the three branched chains are of 2SPS forms; the third branched chain is of a RRPRR form, and namely consists of a first rotary pair, a second rotary pair, a second translation pair, a fourth translation pair and a fifth rotary pair which are sequentially connected; the upper platform and the lower platform are separately positioned at the two ends of the first branched chain and the second branched chain; series-connection mechanical arms which are rotatably connected are separately arranged on the upper platform and the lower platform; and tail end tools for picking plates are separately arranged on the upper rotary pair, the lower rotary pair as well as the tail ends of the series-connection mechanical arms. The RRPRR branched chains are arranged, so that envelope of the mechanism body is reduced, and implementation of space operation is facilitated better. The series-connection mechanical arms are additionally arranged, so that the working space of the mechanism is expanded, and operating and monitoring capability of the mechanism is strengthened.

The invention provides a rear steering height limiting device and a vehicle, the rear steering height limiting device comprises a height sensor and a rear steering controller, the height sensor is installed on a main reduction frame, a rocker arm is arranged on the height sensor, and the rocker arm is connected with a rear wheel upper control arm; the rear steering controller is used for receiving suspension stroke information transmitted by the height sensor; when the suspension stroke information monitored by the height sensor is within a preset interval, the rear steering controller controls the power element to start, the power element pushes the steering rod system to drive the rear wheels to rotate, and then steering of the whole vehicle is achieved. The use condition of the rear steering system is limited, so that the rear wheel envelope of the vehicle is small, the avoidance design of the vehicle body structure for the rear wheel envelope is reduced, the wheelbase is minimized, the passenger space of the vehicle is enlarged, and the weight of the whole vehicle is reduced.

The invention discloses a sliding unfolding system suitable for a large space fixed-surface antenna. The sliding unfolding system comprises a fixed-surface antenna, a drive sliding system, unlocking devices and locking mechanisms, wherein the fixed-surface antenna is a plane or a cylindrical paraboloid after being unfolded and is formed by stacking a plurality of equant panels; the drive sliding system comprises a motor, a steel wire rope, a rope winding drum, fixed pulleys, idler wheels and transition blocks; the unlocking devices include interlayer unlocking devices, the transition blocks and interplate unlocking devices; the locking mechanisms are interplate locking mechanisms; various panels are unfolded and then connected through the interplate locking mechanisms; the rope winding drum is arranged at one end of the lowest panel; the motor drives the rope winding drum to rotate; and the rope winding drum, the steel wire rope and the fixed pulleys form a series drive system. The fixed-surface antenna is sequentially deployed by adopting a series order; a traditional hinged unfolding mode is broken; the closing space is reduced to adapt to carrying enveloping; and the sliding unfolding system has the characteristics of being small in overall envelope, few in drive sources, small in locking impact and high in locking rigidity.

A crystal growth method for reducing the absorption of LBO crystals and the crystal prepared therefrom. The method is to use boric acid and lithium carbonate as raw materials, and use a waist-shaped platinum crucible and a platinum seed rod as a growth device. The platinum seed rod has multiple pieces Parallel and slanted upward platinum sheets, the waist-shaped platinum crucible is small in the middle and large at both ends, with an axisymmetric structure up and down, left and right. In the present invention, a plurality of parallel platinum sheets are arranged on the platinum seed rod to dissipate heat for the platinum rod, thereby reducing the absorption value; the platinum sheet is designed in an upwardly inclined manner, which does not affect the seeding of the seed crystal and the observation of crystal growth The process prevents volatiles from falling in; the specially designed waist-shaped platinum crucible utilizes the special temperature field formed by the large ends and the small middle to avoid the influence of the specific platinum seed rod on the temperature field while maintaining accelerated melting. body flow, reduce the viscosity of the boric acid system, reduce the crystal envelope, and improve the crystal quality.

The invention provides a remote sensing microsatellite configuration with a low-orbit load platform separated, including a metal frame-plate structure of the platform, an integrated load support structure, a frame-type separation mechanism, a plate-type solar wing deployment mechanism and various equipment. In the frame-plate structure, it is similar to the traditional bottom plate, side plate and roof plate. All structural plates adopt thin metal plate + rib + lightening design; the whole structure is designed and assembled based on the bottom plate. The main force transmission path is from the bottom plate to the side plate to The roof to the load; the integrated structure of the load bracket is installed on the satellite roof; the roof can be connected to the bracket, which can be installed with part of the sky-facing equipment and can also be connected to the solar wing; It is mainly connected to the satellite side panels and roof brackets through fixed solar fins. The satellite configuration space utilization of the invention is high, the structure is compact, the volume is small, the assembly process is open, the test is convenient, and the configuration can not be adjusted under the load replacement situation of the same magnitude.