213results about How to "Easy assembly and debugging" patented technology

The present invention discloses an intermittent ampoule transporting device, comprising a feeding mechanism, a first transporting mechanism, a second transporting mechanism and a middle transporting mechanism used to transport the ampoule from the first transporting mechanism to the second transporting mechanism. The feeding mechanism is connected with the first transporting mechanism which is intermittent. The middle transporting mechanism comprises a transporting dental plate on which a containing part used to transport the ampoule is arranged. The intermittent ampoule transporting device can realize the intermittent feeding of the ampoule and avoid the falling, smash and vacant position of the ampoule. The transporting process is more stable.

The invention relates to a quasi-plane wave generator and a quasi-plane wave generating method based on an array antenna. The quasi-plane wave generator comprises a two-dimensional array antenna aperture with electrical sizes of length and width exceeding 10 lowest operating frequency wavelengths, an array antenna unit and an array antenna feeding network. The quasi-plane wave generator utilizes aHuygens principle to form a high-quality quasi-plane wave static zone in the vicinity 1.5 times of the aperture size away from the two-dimensional array antenna aperture through performing control over array antenna unit position, excitation amplitude and phases. The quasi-plane wave generator and the generating method based on the array antenna have wide application range, can be applied to directional diagram measurement of an electrical-large antenna and RF index measurement of a system having the electrical-large antenna, and are particularly suitable for base station antenna measurementof 5G mobile communication and measurement of terminal antennas and systems in millimeter wave bands.

The invention discloses an electronic recording and remote diagnosis digital slit lamp system and a method, relates to the field of optical instruments and remote communication control, and aims to solve the problem about electronic recording, reproduction and remote diagnosis based on an image of a slit lamp. The electronic recording and remote diagnosis digital slit lamp system comprises an eye part of a patient, a digital slit lamp microscope end, a communication unit and a plurality of clients, wherein the digital slit lamp microscope end irradiates the eye part of the patient; the digital slit lamp microscope end, the communication unit and the clients are sequentially connected with one another so as to transmit pathological information of the eye part of the patient; and the clients remotely process and reproduce the pathological information of the eye part of the patient in the form of an image and can remotely control the digital slit lamp microscope end through the communication unit to acquire optical information of the eye part of the patient. The system and the method are mainly used for performing electronic recording, reproduction and remote diagnosis on the image of the slit lamp.

A mechanical decoupling heavy load parallel six-dimension force measuring platform comprises a loading plate, a force measuring plate, an upper cover plate, a bottom frame and more than 12 decoupling force measuring supporting chains. The upper end of the bottom frame is covered with the upper cover plate, a box body is formed, a lower plate of the loading plate is fixed at the plane center of the force measuring plate, an upper plate of the loading plate extends out of an opening in the upper cover plate, the force measuring plate, the upper cover plate and the bottom frame are connected through the decoupling force measuring supporting chains which are distributed on the six faces of the force measuring plate and are fixed on the upper face, the lower face and the four side faces of the force measuring plate respectively, one end of a pressing head A in each decoupling force measuring supporting chain is fixed on the force measuring plate, one end of a pulling pressing force sensor is fixed on the bottom frame and the upper cover plate respectively, the other end of the pulling pressing force sensor and one end of a pressing head B are fixed, the other end of the pressing head A and the other end of the pressing head B are both concave faces, and a steel ball is embedded between the two concave faces. The mechanical decoupling heavy load parallel six-dimension force measuring platform is simple in structure, mechanical decoupling is achieved through the steel ball, dimension-between coupling is small, measuring accuracy is high, and the mechanical decoupling heavy load parallel six-dimension force measuring platform is very suitable for heavy load large-tonnage measuring.

The invention discloses a wavelength division multiplexing and demultiplexing optical structure, which comprises a transmitting end optical structure and a receiving end optical structure, wherein the transmitting end optical structure comprises a wavelength division multiplexing device and a first collimator, and the receiving end optical structure comprises a second collimator and a wavelength division demultiplexing device. The wavelength division multiplexing and demultiplexing optical structure is characterized in that the wavelength division multiplexing device and the wavelength division demultiplexing device are combined to a whole body including a glass block, a transmitting end band-pass filter group and a receiving end band-pass filter group, the transmitting end band-pass filter group is arranged on the lower half part of the glass block, and the wavelength division multiplexing device is formed by the transmitting end band-pass filter group and the lower half part of the glass block; the receiving end band-pass filter group is arranged on the upper half part of the glass block, and the wavelength division demultiplexing device is formed by the receiving end band-pass filter group and the upper half part of the glass block; the receiving end optical structure further comprises a rhombic prism capable of turning a light beam emitted by the second collimator to the wavelength division demultiplexing device. According to the wavelength division multiplexing and demultiplexing optical structure, by adopting micro-optics principle design, the insertion loss of the light beam can be greatly reduced, and the coupling efficiency is improved.

The invention provides a Ku-band constant-amplitude phase modulating feed component, and belongs to the field of electronic communication. The component is used for a feed network of an antenna and mainly comprises a partition circular polarizer, an orthogonal mode coupler, a rotary joint, a mode converter and the like, wherein the orthogonal mode coupler (OMT) is connected with the rotary joint and is used for generating linear polarization in a random direction and feeding the linear polarization into a square waveguide port of the partition circular polarizer. When the OMT rotates to different angles, the partition circular polarizer outputs two paths of signals which are the same in amplitude and of which the phase difference changes along with the angle, and has the function similar to that of a phase shifter as a whole. The ku-band constant-amplitude phase modulating feed component can be applied to a dual circularly polarized antenna, so that left-hand circular polarization and right-hand circular polarization are combined into linear polarization at a random angle. An in-band transmission system disclosed by the invention is good in flatness, small in loss, good in amplitude / phase consistency, wide in frequency application range, high in use reliability and suitable for a transmitting and receiving system of an on-the-move communication antenna.

The invention discloses a detection device and method for simultaneous equal-optical-path imaging and equal-illuminance illumination of double sides of a crystal grain based on an image-combining optical element. The device comprises a camera, a telecentric imaging lens, an image-combining optical element and a semiconductor crystal grain which are sequentially arranged in the direction perpendicular to an optical path, trapezoidal image rotation prisms are arranged at two side parts between the image-combining optical element and the semiconductor crystal grain; and two side surfaces of the semiconductor crystal grain are imaged at different area positions on the surface of a camera sensor through the trapezoidal image rotation prisms and the image-combining optical element in a dual-optical-path manner. According to the invention, the single image-combining optical element is used for replacing two independent right-angle image rotation prisms to realize an image combining function of a double-sided imaging optical path, the scheme is simple in assembly structure, the image combining optical path is simpler and more convenient to debug, and the double-sided image combining precision is higher.

A small optical resolution photoacoustic microscope based on a micro-electromechanical scanning galvanometer belongs to the technical fields of automatic control and imaging. The small optical resolution photoacoustic microscope includes a light source assembly, a single-mode fiber coupling assembly, a light beam scanning assembly, a reflective support 4-1, a signal acquisition assembly and a computer, the computer controls pulsed laser emitted from the light source assembly to be collimated by the single-mode fiber coupling assembly and then enter the light beam scanning assembly, the light beam scanning assembly includes the micro-electromechanical scanning galvanometer 3-4 and a function generator 3-5, the computer controls the micro-electromechanical scanning galvanometer 3-4 to rotatethrough the function generator 3-5, the pulsed laser entering the light beam scanning assembly is reflected by the micro-electromechanical scanning galvanometer 3-4, and reacts with a target object through the reflective support 4-1 in order to generate a photoacoustic signal, and the photoacoustic signal is reflected by a light-transmitting and acoustic-reflecting sheet, is acquired by the signal acquisition assembly, is transmitted to the computer, and is stored and processed. The small optical resolution photoacoustic microscope has the advantages of small size, light weight, wide scanningrange and high scanning precision.

The invention provides a small size uncooled dual-field-of-view infrared optical system which comprises a first positive meniscus lens and a detector. A biconcave lens, a second positive meniscus lens, a negative meniscus lens and a third positive meniscus lens are sequentially arranged from the first positive meniscus lens to the detector along the optical axis; the first positive meniscus lens, the second positive meniscus lens and the third positive meniscus lens each have positive diopter, and the biconcave lens and the negative meniscus lens each have negative diopter. Both the curved surface S3 of the biconcave lens and the curved surface S7 of the negative meniscus lens are aspheric surfaces, and the aspheric surface S7 is further provided with a binary diffraction surface. The lenses of different types are reasonably arranged and the positive diopter and the negative diopter of the lenses are selected, so that the whole dual-field-of-view infrared optical system has a smaller size and a larger zooming ratio, has a larger zooming range under the switching conditions of a narrow field of view and a wide field of view, and is suitable for occasions with small size requirements for infrared optical systems.

The invention discloses a novel ZR shaft assembly of a horizontal multi-joint manipulator. The novel ZR shaft assembly comprises a ball screw, wherein the upper end of the ball screw is connected with a first driving device through a first transmission assembly; a ball screw nut penetrates through the ball screw, the lower end of the ball screw nut is connected with a ball spline shaft, a hollow inner hole allowing the ball screw to sleeve in is formed in the ball spline shaft, and the ball screw and the ball spline shaft are always coaxially arranged; the ball screw nut is further connected with a linear guide rail; the first driving device drives the ball screw to revolve and rotate, the ball screw nut follows the ball screw to revolve and rotate, and the ball spline shaft is carried to move in a vertical direction; and a spline is arranged on the ball spline shaft in a sleeving manner, the ball spline shaft is further connected with a second driving device through a second transmission assembly, the second driving device drives the ball spline shaft to horizontally revolve, and the spline supports the movement and the revolving of the ball spline shaft. The ZR shaft assembly is simple in structure, is small in assembly size, is flexible, is convenient to assemble, and is low in manufacture cost.

The invention relates to an instantaneous parallel transformation structure of an automatic diverter switch. The transformation structure is mainly composed of a support assembly, an A power supply direction electromagnet assembly, a supporting part, a middle connection rod assembly, a shell, a circuit board assembly, a B power supply direction electromagnet assembly, a stressed balance board assembly, a fixed seat and a fixed contact assembly. The transformation structure only has two states, namely the state that an A power supply is switched off and a B power supply is switched on and the state that the B power supply is switched off and the A power supply is switched on. The two electromagnet assemblies are symmetrically arranged, one electromagnet assembly controls one of the states, and a spring and the stressed balance board assembly are used for locking the position state of the structure. An A power supply moving contact and a B power supply moving contact which are installed in the shell are connected through an A power supply square shaft assembly and a B power supply square shaft assembly. The instantaneous parallel transformation structure is simple in structure, the instantaneous parallel time is high in reliability and the instantaneous parallel time is easy to debug.

The invention discloses an optical detection imaging system. The system adopts a multi-angle combined light source to perform high-precision and full-automatic detection on cover plate glass, particularly on cover plate glass of a mobile phone. The multi-angle combined light source is designed for the diversity of appearance defects of the cover plate glass of the mobile phone. An angle, a position and a wavelength of each light source in the combined light source are all optional to adapt to different defect detections; each light source in the combined light source can be subjected to strobing control by a strobing controller. The system realizes a design with a high integration degree through the strobing of the light source, is compact and stable in layout structure and convenient to adjust, and can be used for full-automatic detection for the appearance of the cover plate glass.

The invention aims to provide a multiwire in hand type automatic terminal crimping machine which is rapid in speed, high in efficiency, low in failure rate and convenient to assemble and debug, the multiwire in hand type automatic terminal crimping machine comprises a stepping motor, an air cylinder, a clamping wire chuck, a peeling knife group and a terminal crimping machine, the machine is divided into eight portions of a wire cutting peeling portion, a wire feeding station rotating portion, a clamping wire peeling displacement portion, a clamping wire displacement portion, a wire end length adjusting portion, a clamping wire twisting portion, a terminal crimping forming portion and a wire end soldering tin portion, multiple wires are fed simultaneously, the wires are cut by a medium cutting knife group firstly, a front peeling knife group and a rear peeling knife group are composed of a plurality of blades, thereby multiwire simultaneous peeling can be achieved, and the peeling is simultaneously performed at two ends of a wiring harness.

The invention discloses a microstrip broadband dual-frequency combining method. The method comprises the following steps of: preparing a metal box which comprises a cover plate and a box body; arranging a radio frequency input port A and a radio frequency input port B on one side of the box body; arranging a radio frequency output port on the other side of the box body; fixing a medium substrate in the box body; arranging a band-stop filter A and a band-stop filter B on the medium substrate; accessing a broadband signal A and a broadband signal B to be combined from the radio frequency input ports; making the broadband signal A pass through the radio frequency input port A; making the broadband signal B pass through the radio frequency input port B; performing filtering on the broadband signal A by using a microstrip transmission line A of the band-stop filter A; forming high out-band rejection on the broadband signal B in the range of the broadband signal B by using a 1 / 4 wavelength branch open-circuit line of the band-stop filter A; performing filtering on the broadband signal B by using a microstrip transmission line B of a band-stop filter B; and forming high out-band rejection on the broadband signal A in the range of the broadband signal A by using the 1 / 4 wavelength branch open-circuit line of the band-stop filter B.

The invention relates to an LED panel lamp which comprises a frame, an LED lamp bar, positioning blocks and a light guide plate assembly, wherein the frame is formed by connection of two first frame profile bars and two second frame profile bars through four corner connection pieces, the two first frame profile bars are arranged oppositely, four corners of the light guide plate assembly are limited in clamping spaces of the four positioning blocks respectively, the four positioning blocks are fixed at the four corners of the frame, first profile bar cover plates are arranged on the first frame profile bars and mounted on the first frame profile bars in a detachable connection manner, the middles of the first profile bar cover plates extend downwards to form positioning bars, and the LED lamp bar is limited among the positioning bars and the positioning blocks; second profile bar cover plates are arranged on the second frame profile bars. The LED lamp bar is easy and convenient to replace, maintain and operate and is time-saving and labor-saving.

The invention provides a tensile force alarm device, which can solve the problems of cost increment and easy occurrence of potential safety hazard caused by easy breakage of cables of construction machines existing in the prior art. The tensile force alarm device is arranged on the construction machine, effectively prevents the cables from being broken, reduces cable damage rate and mechanical maintenance rate, and prolongs the service life of the cables. The invention adopts the technical following scheme that: the tensile force alarm device comprises a shell part, a pull rod part, a deflector rod part, an alarm part and a fixing part, wherein the shell part comprises cover plates and a base which are hermetically connected; the pull rod part comprises a pull rod capable of moving up and down according to external tensile force; the deflector rod part comprises a deflector rod, a compression rod and a rotary support, and the deflector rod receives the tensile force of the pull rod to drive the compression rod and the rotary support to swing; the alarm part comprises a toggle switch, an alarm circuit module and a loudspeaker which are electrically connected, and the toggle switch receives motive power of the rotary support to change state; and the fixing part comprises a drag hook and at least one lengthened screw, and the lengthened screw passes through the base.

The invention relates to a bruise-free fruit transition and conversion device, which belongs to the technical field of fruit processing. The bruise-free fruit transition and conversion device is characterized by comprising transmission shafts, a transmission chain and a mechanical grip, wherein each transmission shaft is provided with a recess, the transmission chain is arranged on the two transmission shafts, the mechanical grip is installed on the transmission chain and comprises a support frame, a roller guide rod, a return spring and T-shaped grip sheets, the roller guide rod is installed on the support frame, the return spring is sheathed on the roller guide rod with a positioning device between an upper limiting rod and a lower limiting rod, both ends of the top cross rods of the two grip sheets are respectively hinged with the support frame and the lower end of the roller guide rod, the top end of the roller guide rod rotates with the transmission chain to correspond to the recess in the transmission shaft, the roller guide rod slide vertically in the support frame to drive the grip sheets to open and close, and the grip sheets are pasted with fruit protection cushions. The bruise-free fruit transition and conversion device has the advantages of reasonable and simple reasonable, easy production and manufacturing, low cost and convenient operation, facilitates the transition and conversion in fruit on-line processing, and is durable in use and maintenance-free.

A parameterization adjustable tail gate rack which comprises a base rack, an adjustable rack, a simulated tail gate rack and a gate closing point supporting assembly. Electric stay bar reciprocating stretchable testing, automobile uphill and downhill and zero slope simulation, electric stay bar installation position simulation, tail gate mass center position adjusting and balance weight, tail gatesuction locking position point adjustment, tail gate motion angle acceleration curve collection, electric stay bar stress collection, real-time current and voltage collection and tail gate suction locking stress collection and the like can be achieved, and whether an automobile body support assembly and a back door support assembly are subjected to fatigue damage or not can be tested.

The invention discloses a pulling and pressing both-way decoupling and parallel connecting three-dimensional force sensor. A loading plate is arranged on an outer frame and provided with three nuts with the center connecting lines forming a regular triangle. The lower ends of supporting studs meshed with the nuts are connected with a force measuring plate. Three horizontal adjusting bolts are arranged on the side face of the force measuring plate, wherein the included angle formed by the corresponding center lines of the horizontal adjusting bolts is 120 degrees. The bolt heads of the bolts are located outside the outer frame. The force measuring plate is further provided with three vertical adjusting bolts with the center connecting lines forming a regular triangle, and the lower ends of the vertical adjusting bolts are located on a bottom plate of the outer frame. Four force measuring branch chains are arranged between the force measuring plate and the outer frame, the structures of the three horizontal force measuring branch chains on the side face of the force measuring plate are the same, the center lines of the three horizontal force measuring branch chains on the side face of the force measuring plate are located on the same horizontal plane and intersect with one another at one point of the force measuring plate, the 120-degree included angle is formed by the corresponding center lines of the three horizontal force measuring branch chains and vertical force measuring branch chains are arranged below the force measuring plate, wherein the center lines of the vertical force measuring branch chains are perpendicular to the center lines of the three horizontal force measuring branch chains and pass through the intersections of the center lines of the three horizontal force measuring branch chains. The pulling and pressing both-way decoupling and parallel connecting three-dimensional force sensor is small in inter-dimensionality coupling, high in measuring precision, simple and compact in structure and convenient to assemble and adjust, and the both-way decoupling measurement on the three-dimensional pulling and pressing force can be achieved easily.

The invention discloses a searching apparatus and method of automatically searching electromagnetic radiation sources, and relates to the radio signal source searching technology field. The searching apparatus comprises an unmanned aerial vehicle, a central processing unit for controlling flight and testing of the unmanned aerial vehicle, an electromagnetic radiation sensor for detecting the intensity of electromagnetic radiation, and a barrier avoiding unit. The central processing unit, the electromagnetic radiation sensor and the barrier avoiding unit are disposed on the unmanned aerial vehicle. The electromagnetic radiation sensor and the barrier avoiding unit are electrically connected to the central processing unit. The automatic searching problem of a tapping device is solved, manpower is replaced by a machine, workers are replaced by automation, the problems that manual work is time-consuming, labor-consuming and low in efficiency are overcome.

The invention relates to an operation mechanism of a miniature circuit breaker. A handle, a first connecting rod, a second connecting rod and a third connecting rod of a main mechanism body are respectively articulated and connected by a first articulated shaft, a second articulated shaft and a third articulated shaft; the handle, a lock buckle, a skipping buckle and the third connecting rod are pivotally arranged on a first fixing plate and a second fixing plate by a first rotating shaft, a second rotating shaft, a third rotating shaft and a fourth rotating shaft; an auxiliary contact support of an auxiliary contact device is pivotally arranged on the fourth rotating shaft; an indicating piece of a display output device is pivotally arranged on the second rotating shaft; a release rod isarranged on the first fixing plate; the fourth rotating shaft is arranged on one side of a contacted surface near the release rod; and the second rotating shaft is arranged on one side near an extending direction of the handle. The operation mechanism not only can optionally access to an input device and an output device, but also has a product compact and reasonable in structure, small in volumeand good in operation performance for the optimization design of a structural layout and is convenient to assemble, debug and produce in large scale.

The invention discloses a calibration device for an FSR pressure sensor. The device comprises a pedestal; a stepping motor sliding table assembly which comprises a stepping motor, a stepping motor supporting seat, a shaft coupler, a sliding table assembly support, a ball nut sliding table, a screw, and a sliding table assembly lower supporting plate, wherein the sliding table assembly support is vertically disposed on the pedestal, the screw is in drive connection with the stepping motor through the shaft coupler, and the ball nut sliding table is disposed on the screw in a manner of moving up and down; an overload protection force-applying probe assembly which comprises a sleeve, a force-applying head, and a telescoping rod, wherein the sleeve is fixed on the ball nut sliding table, the force-applying head is disposed below the sleeve through the telescoping rod, and the stepping motor drives the screw to rotate so as to drive the ball nut sliding table to move downwards; a pressure sensor and an objective table. The device is smaller in size, is convenient for assembly and debugging, and is high in calibration precision and efficiency.

The invention relates to an X-band low-grating-lobe circularly polarized antenna, which is composed of a long horn antenna and a separator plate polarizer. The long horn antenna adopts a multi-inner-cavity design of metal separator plates. The aperture field distribution is improved by filling a radiation aperture surface with a dielectric material, so that the antenna gain and aperture efficiencyare improved, narrower directional diagram zero-point width is ensured, and grating lobe suppression capability is improved. The long horn antenna is connected with the separator plate polarizer through a flange in a waveguide cascade mode. The separator plate polarizer is a square waveguide with a metal separator plate in the middle, and the square waveguide is divided into two rectangular waveguides through the metal separator plate, so that a transmitting channel and a receiving channel are formed; and coaxial waveguide conversion of guide openings of the two rectangular waveguides is achieved through a stepped impedance converter. The X-band low-grating-lobe circularly polarized antenna adopts the waveguide as a main body structure, so that the complexity of structural design is simplified, the link loss is reduced, the utilization efficiency of the aperture of an array surface is improved, and the later-period assembly production and equipment debugging efficiency is improved.

The invention relates to a plane wave generator measuring system based on a movable array antenna and applied to a base station antenna production line. The system comprises a plane wave generator based on a movable array antenna, a shielding camera obscura, a complete wave absorbing material in the camera obscura, a shielding design, an open-close type tested equipment bracket, an amplitude modulation and phase modulation network, an industrial personal computer and a vector network analyzer. A high-quality virtual plane wave dead zone is formed in an area close to the double aperture size ofthe aperture surface of the two-dimensional array antenna by controlling the position of an array antenna unit, the excitation amplitude and phase, adjusting the position of the array antenna for N (N is greater than or equal to 1) times and processing through a signal synthesis algorithm. The plane wave generator is wide in application range, can be used for directional diagram measurement of anelectrically large-size antenna and system radio frequency index measurement with the electrically large-size antenna, and is especially suitable for production line rapid measurement of a base station antenna of 5G mobile communication and measurement of a millimeter wave band terminal antenna and system.

The invention discloses an optical repeater used for a long distance seabed optical cable communication system, relating to the seabed optical cable communication field. The optical repeater is integrated in an optimized seabed optical cable joint; the outside of the optimized seabed optical cable joint is prepared by an overall molding process; a whole optical repeater is wrapped in a PE insulating layer, and is isolated from seawater. The optical repeater comprises a first continuous feedthrough unit, a photoelectric unit and a second continuous feedthrough unit, wherein one end of the first continuous feedthrough unit is in connection with the seabed optical cable on one side of the optical repeater, and the other end is in connection with the photoelectric unit; one end of the second continuous feedthrough unit is in connection with the photoelectric unit, and the other end is in conenciton with the optical cable on the other side of the optical repeater. According to the invention, the mechanical design difficulty of the optical repeater is reduced, integration processes and required integration matching resources are simplified, the cost is reduced, the size and weight of the optical repeater are reduced, the sea construction and burying difficulty is decreased, and the reliability is improve.

The invention relates to a hydrogen peroxide denitration process and a corresponding denitration system. According to the denitration process, hydrogen peroxide is taken as an oxidant; .OH is generated through high-temperature and high-pressure catalysis of hydrogen peroxide; .OH is mixed with flue gas, so that nitrogen oxides in the flue gas can be oxidized and recovered; finally, the obtained mixture is subjected to gas-liquid separation, denitration by-products, namely nitric acid and a nitrous acid liquid, are recovered, and the flue gas subjected to denitration is discharged to the outside. The denitration process and the denitration system have the advantages that hydrogen peroxide is taken as the denitration oxidant; through the mixing of hydrogen peroxide and high-temperature steam, hydrogen peroxide tends to be decomposed into hydroxy radical.OH and HO2., so that the nitrogen oxides oxidation and recovery effects are improved, the denitration rate is increased, and the temperature limitation is avoided.

The invention discloses an RFID movement testing system and a corresponding method. The RFID movement testing system comprises a movement carrier, a guide rail, a speed measuring radar, a card reader and a computing device. The movement carrier is configured to carry an RFID tag to move. The guide rail is configured to guide movement of the movement carrier. The speed measuring radar is configured to sample the speed of the movement carrier. The card reader is configured to recognize the RFID tag when the RFID tag passes through an effective recognition area of the RFID tag. The computing device is connected with the speed measuring radar and is configured to receive the speed sampling data from the speed measuring radar, and the movement speed of the RFID tag passing through the work range of the card reader is determined according to the speed sampling data, so that whether the movement speed meets the RFID movement testing requirement or not is judged. According to the technical scheme, it can be guaranteed that the movement speed of the RFID tag is effectively and reliably measured, and the movement recognition performance of the RFID tag and the card reader is met. In addition, the system is portable, movable and convenient to assemble and debug, does not depend on a local power source, and adapts to the testing requirements of indoor and outdoor environments, field environments and other environments.

A micro-gyroscope of permanent magnet rotor stably suspended by high temperature superconductor is prepared by setting gyroscope bottom shell on piqued nitrogen Dewar through support column; forming top and bottom stators of gyroscope by high temperature superconductor, silicon nitride insulation material and stator driving detection moment layer; forming gyroscope rotor by two layers of rotor driving detection moment layer, two layers of cylindrical silicon nitride insulation material and cylindrical permanent magnet material .