38results about How to "Good direction" patented technology

The invention discloses a heating structure used in a scanning electron microscope and a use method of the heating structure, and relates to the technical field of scanning electron microscope high-temperature performance tests.The heating structure comprises a laser, a shell module, a laser clamping module and an electron back scattering diffraction scanning fixing module, and the upper surface of the electron back scattering diffraction scanning fixing module is obliquely arranged; the laser clamping module is installed on the electron back scattering diffraction scanning fixing module, the shell module is installed above the laser clamping module, a heating dodging plate used for placing a sample to be tested is arranged in the shell module, and the laser clamping module is used for clamping a laser lens of a laser. Laser beams output by the laser lens are irradiated on the heating dodging plate, the two ends of the to-be-tested sample extend out of the shell module and are connected with the stretching table, and an observation hole for observing the sample is formed in the upper end of the shell module. According to the invention, the imaging definition of the scanning electron microscope can be improved, and the in-situ high-temperature mechanical property test and the EBSD high-temperature analysis experiment in the scanning electron microscope can be smoothly carried out.

The invention relates to an electromagnetic adsorption butting connector for a microgravity environment, which comprises a plug and a socket, the front ends of the plug and the socket are inserted oppositely, a plug shell is provided with a female end transmission module, a socket shell is internally provided with a male end transmission module, the plug shell is provided with an armature component, and the socket shell is provided with an electromagnetic component. The armature part and the electromagnetic part can provide power for the plug and the socket to make the plug and the socket close to each other, and can be demagnetized after the electromagnetic part loses power. A telescopic locking component which can be driven by a power mechanism to move in the axial direction of the plug shell is further arranged in the plug shell, and a locking structure used for being locked with the telescopic locking component in a matched mode is arranged on the socket shell. And the locking structure is locked with the telescopic locking component under the adsorption action of the armature component and the electromagnetic component, and then moves towards the plug end along with the telescopic locking component to provide butt joint power for the transmission module, so that the plug and the socket are completely inserted, and the requirement of large-insertion-force insertion of the connector is met.

The invention discloses an integrated optical fiber ultrasonic endoscope and a preparation method, and belongs to the field of ultrasonic sensors. Comprising a multi-core optical fiber, a dielectric film, a strip-shaped sensing layer, a mixed excitation inclined wedge, a sensibilization column and an endoscopic sheath. Double sensibilization is achieved through the sensibilization columns and the strip-shaped sensing layer, the sensitivity of lateral sensing is greatly improved, and good directivity is achieved on a film layer plane through the strip-shaped structure of the sensing layer. And the mixed excitation inclined wedges respectively realize side sound field excitation which is double and quadruple of that of the traditional single-mode optical fiber in two intensity directions. The problems that an existing optical fiber ultrasonic sensor is large in size, low in excitation power, low in integration level and low in sensitivity are solved.

The invention relates to the technical field of hard rock stratum blasting construction, and discloses a hard rock stratum excavation device based on blasting vibration safety control and a using method of the hard rock stratum excavation device. The technical problems that in the prior art, harmful effects exist in underground engineering drilling and blasting method construction, and control is difficult are solved. The system comprises a blasting structure arranged in a hard rock stratum section and a monitoring module arranged on the earth surface, the blasting structure comprises blast holes and vibration reduction holes, the blast holes comprise slotting holes, auxiliary holes and peripheral holes, eccentric non-coupling vibration isolation charging structures are arranged in the slotting holes and the auxiliary holes, and the vibration reduction holes are arranged in the peripheral holes. Comprising a radial non-coupling charging structure and an axial non-coupling charging structure, an energy gathering cover interval charging structure is arranged in a peripheral hole, a vibration reduction hole is formed between a blast hole in a tunnel and a protection object, and the monitoring module comprises measuring points and vibration meters which are arranged in excavated and non-excavated areas on the two sides of a tunnel face. According to the method, the technical level of hard rock stratum blasting excavation construction is improved, and metro hard rock stratum blasting fine design, meticulous construction and control over harmful effects are achieved.

The invention belongs to the field of nanometer materials, and particularly relates to a bullet-shaped nanometer motor with a hole formed in the tail and a preparation method of the bullet-shaped nanometer motor, the bullet-shaped nanometer motor comprises a bullet-shaped AuNBPs (at) Ag nanometer material and a power source, and the bullet-shaped AuNBPs (at) Ag nanometer material is composed of gold nanometer double-cone AuNBPs and Ag nanometer rods; one end of the gold nano bipyramid AuNBPs is exposed outside to form a tip structure, and the other end of the gold nano bipyramid AuNBPs is wrapped by the Ag nanorod to form a rod-shaped structure; the tail part of the Ag nanorod is provided with an open pore, and the power source is loaded on the open pore. The bullet-shaped nano motor breaks through the limitation of a traditional spherical structure, the top end of the bullet-shaped nano motor is of a pointed cone structure, the tail portion of the bullet-shaped nano motor is provided with holes to load metal oxide to serve as a power source, and the bullet-shaped nano motor has excellent dynamic performance and good guidance quality.

The invention discloses a method for efficiently generating high-brightness gamma radiation, and belongs to the technical field of radiation. A relativistic electron beam is injected into the porous microstructure foam target material, and high-brightness gamma ray radiation is generated. According to the method, the used device is simple, only the single relativistic electron beam and the porous microstructure foam target material are needed to interact, compared with a traditional uniform-density solid material, the energy conversion efficiency in the interaction process of the electron beam and a substance can be remarkably improved, and the energy conversion efficiency can be remarkably improved through the effective constraint effect of a high-intensity magnetic field. And the problems of low energy conversion rate, low light source brightness, poor radiation directivity, complex device or difficulty in experiment implementation and the like of the existing high-energy gamma ray radiation source are solved.

The invention provides an automatic fishing net drawing device for a fishpond, which is suitable for an automatic fishing scene of a rural fishpond and comprises a fishing net, a motor, a gear shifting mechanism, an executing mechanism and a guide mechanism. The motor drives the belt pulley to decelerate and control the start, stop and rotating speed of the motor, so that the net drawing device is driven and controlled. The net drawing device comprises a fishing net, a guide mechanism and an executing mechanism and is used for fishing fishes in a fishpond, the guide mechanism covers the fishpond in all directions by arranging a sectional type straight line, a circular guide rail and a rail sliding block along the periphery of the fishpond, and the executing mechanism achieves rotation of the first-stage winch device and the second-stage winch device in a time-sharing mode through a gear shifting mechanism. And the fishing net drawing process and the fishing net pulling process are achieved respectively. The fish catching efficiency can be improved, manual intervention and time loss are reduced, the influence on fishpond ecology is reduced, and sustainable fishery development is achieved.

The invention relates to the technical field of laser, in particular to a planar waveguide laser using suspended particle fluid as a laser gain medium. The planar waveguide laser comprises a pumping source, and the pumping source comprises a semiconductor laser array. The beam shrinking imaging lens group is arranged on the light emitting side of the pumping source along the optical axis; the slow axis focusing lens is arranged on a light path between the beam shrinking imaging lens groups; the dichroic mirror is arranged on the light emitting side of the beam shrinking imaging lens group; the resonant cavity is arranged on the light emitting side of the dichroic mirror; and the gain module is arranged between the dichroic mirror and the resonant cavity. By compressing the light beam form and improving the order of magnitude of the pump light, the laser generation and output process becomes more efficient; meanwhile, the planar waveguide has good light beam quality, the heat dissipation problem of the solid laser is effectively relieved, and the solid laser is suitable for various application scenes.

The utility model discloses a coupler which comprises a coaxial line and a multilayer circuit board arranged on the coaxial line, and the coaxial line comprises an inner conductor and an outer conductor. The multilayer circuit board comprises a dielectric substrate, a first ground layer, a first microstrip line, a second ground layer, a third ground layer, a second microstrip line, a third microstrip line and a first via hole, wherein the first ground layer and the first microstrip line are arranged on one side surface of the dielectric substrate; the second ground layer is arranged in the dielectric substrate; the third ground layer, the second microstrip line and the third microstrip line are arranged on the other side surface of the dielectric substrate; and second and third vias through the second formation. The first ground layer is connected with the outer conductor, the first microstrip line is located in a through hole of the first ground layer, the line width of one end of the first microstrip line is smaller than 50 ohm, the line width of the other end of the first microstrip line is larger than 50 ohm, and the first microstrip line is coupled with the inner conductor through the slot of the outer conductor; the second microstrip line and the third microstrip line are located in the two gaps of the third ground layer; the second and third microstrip lines are connected with two ends of the first microstrip line through the second and third via holes.

The invention relates to a half-wave oscillator antenna device based on a reflection cavity structure and an adjusting method thereof, the device comprises a copper-clad plate reflection cavity, a half-wave oscillator antenna, a microstrip feeder line, a copper-clad plate, an SMA interface and a reflection cavity bottom surface, the copper-clad plate reflection cavity is connected with the peripheral edge of the reflection cavity bottom surface to form a semi-closed cavity with an opening facing one side; the bottom surface of the reflection cavity is provided with a through hole matched with the SMA interface, one side of the copper-clad plate is connected with the bottom surface of the reflection cavity, the half-wave oscillator antenna and the microstrip feeder line are both arranged on the surface of the copper-clad plate, and one end of the half-wave oscillator antenna is connected with the SMA interface through the microstrip feeder line. Compared with the prior art, the antenna has the advantages that the structure is simple, wave beams can be more concentrated under the condition that the bandwidth of the antenna is not affected, and therefore the high-gain effect of the antenna is achieved.

The application provides a broadband symmetrical amplitude equalization directional coupler and a coupling method, relates to the technical field of microwave radio frequency passive devices, and comprises the following parts: a single-section coupling line located in an input through branch, the single-section coupling line being a double-layer metal biased wide-side coupling line; a symmetrical amplitude equalizer connected to a coupling port and an isolation port respectively; and an LC matching network connected to an input port and an output port respectively, so that the directional coupler suitable for 18-50GHz can be constructed, and strong coupling of the directional coupler is realized.

The utility model discloses a repelling robot which comprises a robot walking platform, a functional platform is installed on the robot walking platform, a human body recognition system and a strong sound repelling device are installed on the functional platform, and the robot walking platform is a six-wheel non-independent suspension robot walking platform. The human body recognition system comprises an image acquisition unit and an image processing unit, the image acquisition unit comprises a holder, a visible light camera and an infrared camera which act synchronously are arranged on the holder in parallel, and the focal length and the view field of the visible light camera are the same as those of the infrared camera; and the image processing unit comprises an artificial intelligence processor with graphic processing capability and deep learning capability. The repelling robot can overcome camouflage and interference, quickly judge whether people needing to be repelled exist in the current environment or not and give out strong sound to the people needing to be repelled, and has the advantages of being high in patrol speed, high in recognition rate and the like.

The utility model provides an adjustable antenna, which relates to an antenna structure and comprises a plurality of antenna sections, and the adjacent antenna sections are connected through connecting assemblies. The connecting assembly is used for adjusting the included angle between the adjacent antenna sections; a first electromagnetic shielding layer is arranged on the outer surface of the connecting assembly; the connecting assembly comprises a locking part and two connecting parts; a locking hole is formed in one end of each connecting part, and the locking part is used for locking the two connecting parts after penetrating through the locking holes of the two connecting parts; and the other end of the connecting part is connected with the antenna section. The included angle between the adjacent antenna sections is adjusted through the connecting assembly, the antenna can be flexibly adjusted according to different communication requirements and environmental conditions, and the sensitivity to interference sources such as metal conductors is effectively avoided or reduced; an electromagnetic shielding layer is arranged on the outer surface of the connecting assembly, and interference of an external electromagnetic field on antenna communication is isolated and reduced.

The invention belongs to the field of memristors, and discloses a memristor with a high on-off ratio and low off-state current density and a preparation method thereof.The preparation method comprises the following steps that an ITO substrate with the hydroxylated surface is soaked in an ethanol solution of 3-aminopropyltriethoxysilane; 3-aminopropyltriethoxysilane molecules are modified on the surface of the ITO substrate, and the ITO substrate with positive electricity on the surface is obtained; the method comprises the following steps: soaking an ITO substrate with a positively charged surface in a gold nanoparticle colloidal solution to obtain a substrate assembled with gold nanoparticles, spin-coating polymethyl methacrylate on the surface of the substrate assembled with the gold nanoparticles, baking until the substrate is dry, and then plating an aluminum film to obtain the memristor with high on-off ratio and low off-state current density. The memristor disclosed by the invention has an ultrahigh switch ratio and ultralow off-state current density at the same time, can be stably converted between a high-resistance state and a low-resistance state, and has a long-time retention characteristic and good process repeatability.

The invention relates to the technical field of odometers, and discloses a millimeter wave odometer, which comprises a loading box body, the upper end of the loading box body is connected with a loading box body cover plate, the lower end of the loading box body is embedded with a bottom plate, the upper end of the bottom plate is provided with a PCB microstrip-to-waveguide, and four corners of the lower end of the bottom plate are connected with 45-degree waveguide antennas. The bottom ends of the four 45-degree waveguide antennas are all connected with horn antennas, ports of the horn antennas are arranged in a rectangular shape, a T-shaped frame is connected between every two adjacent horn antennas, and the upper end of each T-shaped frame is connected with a fixing plate. Modular design is adopted, system maintenance is facilitated, and system reliability is improved; according to the invention, the two-channel millimeter wave radar scheme is adopted, the precision and reliability of the odometer system are improved, the two radars can provide more accurate and comprehensive target information, and errors and uncertainty are reduced; the two-channel radar system can realize omnibearing detection, is not influenced by vehicle attitude and speed change, and effectively improves the accuracy of the odometer.

The present invention discloses a coal mine comprehensive mining support alignment detection system, including a detection unit, which includes at least two hydraulic supports arranged in sequence along a preset straight line direction, the first hydraulic support is a positioning support for setting a laser head, and the other hydraulic supports are matching supports with a built-in shading structure. The light of the laser head enters the matching support and is projected onto the shading structure to measure the distance, and the hydraulic support and the laser head are communicatively connected to a control device. In the preset frame moving direction, the front end face of the positioning support is the positioning surface, and the front end face of the matching support is the matching surface. In the process of the matching support moving forward so that the matching surface is coplanar with the positioning surface, the control device receives the detection signal of the laser head, and when it is determined that the distance measurement value reaches the set distance requirement, the matching support is controlled to stop moving, and the matching surface is coplanar with the positioning surface. By using the laser head to measure the distance, the relative position relationship between the matching support and the positioning support is judged according to the distance change, so as to improve the efficiency and accuracy of the hydraulic support alignment operation.

The invention belongs to the technical field of antennas, and relates to a cavity-backed butterfly antenna, which comprises a cavity-backed structure and a butterfly structure, the back cavity structure comprises a supporting layer and a matching layer connected with the supporting layer; the supporting layer comprises a bottom plate and four side plates connected with the bottom plate to form a box-shaped structure; the matching layer and the bottom plate are arranged at an interval, and the matching layer is connected with more than one side plate; through holes are formed in the bottom plate and the matching layer to form a matching opening; the butterfly-shaped structure comprises a main board and a balun connected with the main board; the butterfly-shaped structure and the back cavity structure are arranged at intervals, the mainboard is arranged on one side of the matching layer, and the Balun penetrates through the matching port and then is connected with the input end, so that the back cavity type butterfly antenna is formed. By adopting the antenna, the performance characteristics of high gain, ultra wide band and miniaturization can be realized.

The application discloses an unmanned ship underwater target intelligent identification method based on an imaging sonar, and relates to the fields of unmanned operation platforms and target identification. The application is aimed at the requirements of unmanned ship navigation and tasks, considers the task characteristics of the unmanned ship, and specifically adopts a forward-looking sonar to perform target ranging positioning and accurate identification, and based on machine learning and, realizes thorough water area perception, target detection and accurate identification for underwater targets. The application can improve the underwater target identification performance of the unmanned ship.

The utility model provides a high system directivity signal distribution circuit suitable for a multi-port vector network analyzer. External test ports are matched with independent single bi-directional couplers. Compared with the prior art, no additional matrix radio frequency switch is arranged between the coupler and the to-be-tested piece, the directivity of the system is greatly improved due to the reduction of insertion loss, the upper limit of working frequency is improved, and the stability and performance indexes of the whole test system are also remarkably improved. Meanwhile, an isolation end, which is terminated with a matched load, in the single directional coupler is defined as an additional coupling port to form the dual directional coupler, so that the single dual directional coupler can meet the functional requirements of two single directional couplers of a signal distribution circuit in a traditional vector network analyzer, and the cost and the size can be reduced to a certain extent. In addition, the receiver amplification matrix can keep the signal-to-noise ratio of the receiver relatively stable, and also can improve the system dynamic range of the whole multi-port vector network analyzer.

The invention belongs to the technical field of paper boxes, and particularly relates to an easy-to-open paper box which is characterized in that a paper box body is made of white cardboard and comprises a front panel, one side of the front panel is connected with a left side plate, one side, away from the front panel, of the left side plate is connected with a rear panel, and one side, away from the left side plate, of the rear panel is connected with a right side plate; according to the paper box, the opening mode of the paper box body is the mode of sticking and tearing the adhesive tape, compared with a traditional zipper mode, when the paper box body is opened, the easy-to-tear effect is greatly improved, and meanwhile the problem that the paper box body is difficult to tear or poor in quality due to the traditional zipper mode is solved. According to the carton body opening mode, the adhesive tape is used at the opening position, the adhesive tape is attached to the inner face of the carton body, die cutting is not conducted on the carton body, the carton body cannot be damaged, and the appearance experience of the carton body is not affected.

The utility model discloses a sofa capable of automatically adjusting hardness, and relates to an improvement of household furniture products, in particular to an improvement of a sofa. The sofa comprises a sofa seat, a plurality of frame cross bars are arranged in the sofa seat, a plurality of connecting seats are uniformly arranged on the frame cross bars, and an elastic seat is inserted into each connecting seat; the elastic seat is composed of an upper panel, two sleeving pieces and a bayonet socket, the two sleeving pieces are fixed to the bottom face of the upper panel after being arranged in a crossed mode, and the bayonet socket is arranged between the two sleeving pieces and inserted into hole grooves of the sleeving pieces. The mobile phone has the advantages of being long in service life and good in elasticity and directivity, and good user experience can be brought to a user; the risks of spring fatigue, breakage and damage of spring type sofas are avoided, and the risks of loosening and breakage of bandage type sofas are also avoided; and the risk of poor-quality filler does not exist.

The utility model belongs to the technical field of antennas, and relates to an antenna device with adjustable arbitrary polarization, which comprises a radio frequency module and an antenna module, the radio frequency module comprises two numerical control phase shifters and two numerical control attenuators; the antenna module comprises more than two antennas, the number of the antennas is an even number, and the antennas are averagely divided into two groups; one numerical control phase shifter is connected with one group of antennas through one numerical control attenuator, and the other numerical control phase shifter is connected with the other group of antennas through the other numerical control attenuator; after the phases of the two paths of radio frequency signals are regulated and controlled by the numerical control phase shifter and the amplitudes of the two paths of radio frequency signals are regulated and controlled by the numerical control attenuator, the two groups of antennas radiate orthogonally polarized electromagnetic waves so as to realize arbitrary polarization adjustability of the antennas. According to the invention, any polarization of the antenna can be adjusted, the polarization form is flexible, and the polarization switching speed is improved.

The invention provides a sparse array antenna with a tilted normal beam, which comprises waveguide antenna units, a plurality of waveguide antenna units adopt the same open waveguide antenna structure, each waveguide antenna unit comprises a first metal cavity and a second metal cavity which are communicated, one end of the first metal cavity is arranged on a working plane and receives a radio frequency signal, and the other end of the first metal cavity is arranged on the working plane. The first metal cavity and the second metal cavity which are communicated form a radio frequency signal propagation path; a radiation port of the waveguide antenna unit is arranged at one end, far away from the first metal cavity, of the second metal cavity; a first inclined included angle is formed between the plane where the radiation port is located and the working plane, so that the antenna pattern of the waveguide antenna unit performs normal offset at the first inclined included angle; wherein the plurality of waveguide antenna units are arranged according to a sparse array. The normal beam inclined phased array sparse array open waveguide antenna provided by the invention has the advantages of low profile, low cost, high integration and phase scanning, and has high application value.

The invention discloses a cable terminal liquid level monitoring system which at least comprises a processor, an ultrasonic ranging module, a wireless power supply module and an energy storage module. The wireless power supply module is electrically connected with the energy storage module, and the energy storage module is electrically connected with the ultrasonic ranging module; the ultrasonic ranging module comprises an ultrasonic transmitting unit and an ultrasonic receiving unit which are in signal connection with the processor, and when the processor judges that two ultrasonic signals received by the ultrasonic receiving unit are larger than or equal to the pulse width of the ultrasonic transmitting unit, the pulse width of the ultrasonic transmitting unit is reduced. Ultrasonic waves are used for detecting the oil sealing height, the wireless power supply module is used for taking electricity for equipment, the wireless signal transmission technology is used for data transmission, and signal collection and transmission are completed under the condition that any construction environment does not need to be changed.

The utility model relates to a synchronous docking device and an automatic docking system. The synchronous docking device comprises a base; the driving mechanism comprises a driving part, a movable part and a sliding pair assembly, the driving part is arranged on one side of the base, the movable part is connected to the output end of the driving part, the movable part is movably connected to the base through the sliding pair assembly in the first direction, and the movable part is provided with a guide channel; the distance between the guide channel and the base is gradually increased in the direction close to the driving piece. The butt joint mechanism comprises a supporting piece, a support and a limiting piece. Through the above arrangement, the butt joint direction of the connector is ensured to be accurately aligned and plugged with the external target interface, a plurality of connectors can be plugged synchronously and the plugging force is consistent, the plugging efficiency is improved, the directionality is better, and the service life of the connector can be ensured.

This utility model provides a traction device, including: a frame, a traction seat, and a locking rod. The frame is movably arranged along a preset trajectory. The traction seat is installed on the top of the frame and is located on the side of the frame closer to the drying oven. The traction seat has an insertion slot that extends along the length of the frame. The insertion slot is for the insertion and engagement of traction fittings on the placement frame. The locking rod extends along the width of the frame and is movably inserted into the traction seat along the width of the frame. The side wall of the insertion end of the locking rod has a guide slope, and the locking rod has an initial state, a clearance state, and a locked state. When the traction seat is away from the placement frame, the insertion end of the locking rod is located in the insertion slot, and the locking rod is in the initial state. This traction device effectively solves the technical problem in the prior art where, after the profile has been dried, the operator needs to enter the high-temperature drying space to manually push out the placement frame.

The invention discloses a radiation unit based on movable radiation arms, a base station antenna and a base station, and relates to the technical field of mobile communication, the radiation unit comprises two pairs of radiation structures which are oppositely arranged, and each pair of radiation structures comprises two radiation arms; the connecting structure comprises a transmission structure and a pushing structure, the pushing structure comprises two sets of pushing units, the transmission structure slides on the first track to push the two sets of pushing units to move in the second track in an opposite direction or a back-to-back direction so as to drive the two radiation arms to be combined or separated, and the combined radiation arms are two pairs of radiation structures which are oppositely arranged; when the two radiation arms are separated, the two radiation arms are located at the two end points of the two second tracks respectively to form a radiation unit distributed in a rectangular mode, and by adjusting the positions of the radiation arms, the antenna performance can be optimized in different working modes, different communication requirements can be met, and the gain and directivity of the antenna are improved.

The invention relates to the technical field of sensors, in particular to a closed transceiving split-type half-module ultrasonic sensor, which comprises a shell, an ultrasonic sensor and a middle structure made of a vibration absorption material, the shell is composed of a base plate and two barrel structures arranged on the base plate side by side, and a cavity is formed in each barrel structure. The ultrasonic sensor comprises a transmitting sensor, a receiving sensor and a lead, the transmitting sensor and the receiving sensor are respectively arranged in the two cavities, and the middle structure part is arranged in the cavities; the transmitting sensor and the receiving sensor are arranged in a split mode, signal separation is achieved, interference of transmitting signals on receiving signals is effectively reduced, and the guiding effect of the two cavities enhances signal directivity, reduces energy dispersion and improves echo signal strength and measurement precision. The middle structure made of the vibration absorption material effectively absorbs residual vibration, reduces signal interference, enables signals to be purer and more stable, and further improves directivity and energy concentration ratio, thereby improving measurement precision and stability.

The present invention discloses a method for simulating infrared radiation of a far-field target, and the simulation method comprises the following steps: S1, determining the target to be simulated; S2, calculating the emission power of an infrared laser according to the infrared radiation characteristics of the target to be simulated; S3, aiming the infrared laser at the device to be tested, and controlling the infrared laser to emit an infrared laser for simulating the radiation of the target. The present invention simulates the infrared radiation of a far-field target by emitting an infrared laser, and stimulates various infrared detection devices including infrared alarms and infrared thermal imagers, so as to provide an infrared signal source for testing the equipment. The infrared radiation of different far-field targets can be simulated by adjusting the emission power of the infrared laser, and the passing or approaching process of the target can also be simulated by controlling the change of the emission power of the infrared laser. The present method has high radiation efficiency and good adjustability, and is suitable for simulating infrared targets under far-field conditions.

The utility model provides a radial electric clutch electric capstan which comprises a support (1), a winding drum (2), a planetary gear reducer (3) and an electric motor (4), a labor-saving lever structure (5) is arranged in the circumferential direction of the planetary gear reducer (3), one side of a power arm (7) of the labor-saving lever structure (5) is connected with an electric driving unit (6), one side of a resistance arm (8) of the labor-saving lever structure (5) is hinged to a radial movement straight pin (11), and the resistance arm (8) of the labor-saving lever structure (5) is connected with the electric driving unit (6). The electric drive unit (6) is provided with a straight pin (11), the straight pin (11) is matched with a radial limiting hole (13) of an inner gear ring (12) of the planetary gear reducer (3), the electric drive unit (6) is provided with a telescopic output end (14), an abutting structure (15) is arranged between one side of the power arm (7) and the output end (14), the straight pin (11) is connected with an elastic piece (16), and the elastic piece (16) is used for driving the straight pin (11) to be inserted into the radial limiting hole; the electric capstan has high reliability.