113 results about "Radiation angle" patented technology

The invention relates to a directed radiation refrigeration coating, a coating composition and preparation and application thereof, and the heat radiation path of the directed radiation refrigeration coating is changed by adjusting the refractive index between the coatings, so that the heat radiation angle is changed. Furthermore, the heat radiation angle can be accurately controlled by regulating and controlling the thickness of the coating and the proportion of filler components, so that the heat can be greatly exchanged to the outer space through an atmosphere window by changing the heat radiation angle even if the coating is coated on the surface of a base material in the direction perpendicular to the sky, and the refrigeration effect is remarkably improved.

The invention provides an atmospheric water vapor detection method and system based on a satellite, and relates to the technical field of satellite remote sensing, and the method comprises the steps: obtaining satellite remote sensing data and solar radiation angle data of a target area; performing correction processing according to the satellite remote sensing data and the solar radiation angle data to obtain corrected radiation data; establishing an atmospheric radiation transmission model according to the corrected radiation data, and generating radiation simulation data; performing water vapor inversion processing according to the radiation simulation data, and calculating to obtain vertical distribution data of water vapor in the atmosphere; and performing three-dimensional interpolation processing according to the vertical distribution data to obtain three-dimensional hierarchical water vapor monitoring data. According to the method, the radiation error in the satellite remote sensing data is corrected by using the solar radiation projection model, so that the radiation error problem caused by ground reflection and the sunlight angle is solved; morphological prediction is carried out on the missing area through a topology analysis technology, fitting filling is carried out in combination with neighborhood water vapor data, and the accuracy and reliability of a monitoring result are improved.

The invention provides an ultrahigh dose rate radiation method, which comprises the following steps: controlling a plurality of beam modules to be positioned at a plurality of target positions in a one-to-one correspondence manner so as to form different radiation angles relative to the same target part; and under the condition that a to-be-radiated area of a target object is located at the target part, the beam modules are controlled to alternately emit multiple radiation beams to the target part from the different radiation angles, and each radiation beam in the multiple radiation beams has an ultrahigh dose rate. The invention further provides an ultrahigh dose rate radiation device.

The invention relates to the field of sun tracking sensing devices, and aims to solve the problems that a light radiation detection system is delayed in response and high in analysis complexity due to indirect calculation or image analysis for obtaining a sunlight radiation angle, and accumulative errors exist under a dynamic illumination condition. According to the solar tracking sensing device and method for realizing dynamic scanning of the light radiation quantity, measurement and direct output of the light radiation quantity and the angle are realized through rotation of the two-axis holder, and the maximum value of the light radiation quantity and the angle value corresponding to the light radiation quantity of a to-be-measured site can be obtained by directly using the device disclosed by the invention at the to-be-measured site; the light radiation quantity and the corresponding angle are directly output, dependence on continuous light intensity distribution is reduced, the problems that dynamic response of a sun tracking device in the prior art is delayed, and the light radiation quantity and the corresponding angle cannot be directly output are solved, and the device can be widely applied to the photovoltaic panel fixing and installing process and a dynamic angle adjusting system of a photovoltaic panel.

The invention provides a cell panel extension control method and a light storage integrated mobile bin. The cell panel extension control method comprises the following steps: acquiring current sunlight irradiation angle information of a bin body, and acquiring an irradiation inclination angle according to the sunlight irradiation angle information; and synchronously adjusting a second extension inclination angle of the second cell panel, wherein the second extension inclination angle is matched with the first extension inclination angle so as to balance the weight of the solar cell panel assembly. The first cell panel close to one side of the sun is subjected to extension inclination control according to the current sunlight irradiation angle, so that the solar cell panel can receive sunlight irradiation at an angle closer to the vertical angle, the sunlight reflection of the solar cell panel is reduced, the solar radiation energy is increased, and the conversion efficiency is improved.

The invention discloses an angle-adjustable narrow-band heat radiator based on corner hyperbolic phonon polaritons. The heat radiator sequentially comprises a metal layer, a natural biaxial hyperbolic medium, a vacuum / air spacing layer and a one-dimensional medium grating. According to the angle-adjustable heat radiator, the biaxial hyperbolic medium and the gold layer are twisted as a whole, and the included angle between the radiating surface and the plane where the crystal axis of the natural biaxial hyperbolic medium is located is changed, so that the heat radiation direction is changed. The radiator can be produced on a large scale at low cost by utilizing processes such as nano photoetching and deposition. The narrow-band directional thermal radiation device obtained through the nano manufacturing technology is stable and reliable in performance, can generate thermal radiation with narrow bandwidth and small radiation angle, has the characteristics of adjustable direction, flexibility, convenience and the like, and is expected to be applied to the fields of directional heat dissipation, thermal camouflage and the like.

The present invention discloses a design method for a replacement model of a Fresnel zone patch antenna that integrates physical mechanisms, and belongs to the field of antenna design technology in artificial intelligence technology and communication technology. The method includes: calculating the physical parameters of the Fresnel zone patch antenna; calculating the estimated gain data and theoretical gain data of the Fresnel zone patch antenna with different physical parameters within a preset radiation angle range; constructing a deep neural network model, and training the deep neural network model using data in a training set and label data; using the trained deep neural network model as a replacement model for the Fresnel zone patch antenna, and using the replacement model to predict the gain at different radiation angles. The replacement model designed by the present invention can quickly and accurately predict the gain within the main radiation angle of the FZPA. Compared with traditional replacement models, it has high accuracy, fast speed, low training cost, and significantly higher efficiency than traditional FZPA design methods.

The present invention relates to a store service management system, a method for providing a store service of the system, and a sensor device. The store service management system according to an embodiment of the present invention comprises: a sensor device provided in a store such that the provision height thereof relative to a floor surface of the store is adjustable through a height adjustment unit, or a radiation angle of a signal is adjustable through a housing formed to satisfy designated conditions in consideration of signal characteristics, thereby intensively transmitting the signal only to a designated spatial area within the store to perform communication; and a store service management device, which receives, from a user terminal device, store identification information acquired when an application for using the store service is executed in the user terminal device located in the store, and thus provides, on the basis of the (pre)received identification information, a store service that can be used at a store in which the user terminal device is located.

A wind pressure type of haptic firefighting nozzle interface that is interworked with virtual reality (VR) content for virtual firefighting training is provided. The wind pressure type of haptic firefighting nozzle interface includes: a flow controller for adjusting a spraying intensity of water sprayed on the VR content; a stream shaper for adjusting a spray shape according to a radiation angle of the water sprayed on the VR content; and at least one first haptic device for providing haptic feedback corresponding to the spraying intensity and the spraying shape determined according to control through the flow controller and the stream shaper using wind pressure.

The waveguide antenna comprises a waveguide body, the waveguide body is provided with a waveguide cavity, the waveguide body is further provided with a waveguide radiating surface, a waveguide feed surface and a waveguide short-circuit surface, the waveguide feed surface and the waveguide short-circuit surface are oppositely arranged in the first direction, the waveguide radiating surface is located between the waveguide feed surface and the waveguide short-circuit surface, and the waveguide feed surface is located between the waveguide radiating surface and the waveguide short-circuit surface. The waveguide body is provided with a first slot and a second slot on the waveguide radiating surface, the first slot and the second slot are arranged at an interval along a second direction, the waveguide body is provided with a feed port on the waveguide feed surface, the first slot, the second slot and the feed port are all communicated with the waveguide cavity, and the waveguide radiating surface is of a non-planar structure. A preset included angle is formed between the normal direction of the first gap and the normal direction of the second gap. Through the above mode, the embodiment of the invention can expand the radiation angle of the electromagnetic wave of the waveguide radiation surface, so that the beam of the waveguide antenna radiation surface is dispersed and expanded, and the beam width of the radiation surface is increased.

The invention belongs to the technical field of micro-nano optics, and discloses a multichannel multiplexing fluorescent display method and device. A metasurface is constructed, a plurality of unit structure arrays with different periods are spatially arranged on the metasurface, and the unidirectional radiation angle of guided wave fluorescence corresponding to each unit structure array is controlled by encoding the period of each unit structure array; by means of numerical aperture limitation of an imaging observation system, analog quantity regulation and control of the super-structure surface on the fluorescence radiation angle is converted into a discrete intensity coding state, a plurality of independently coded target fluorescence images are presented at different observation angles, and multi-channel multiplexing fluorescence display is achieved. According to the invention, multi-channel multiplexing display of fluorescence can be realized, the degree of freedom and flexibility of fluorescence multiplexing are improved, and the requirements of next-generation high-density display and information encryption can be met.

The present invention relates to a frequency steered phased array antenna which adjusts beam radiation angle according to frequency for broadband electromagnetic waves, and radiates beams of uniform intensity over a broad range of angles including directly forward. The frequency steered phased array antenna according to the present invention comprises: a directional coupler including a serial feed line that is stacked in n layers and has a plurality of coupling holes formed in one direction in each of the layers; and a radiating module including n horn antennas respectively connected in correspondence to the n layers of the serial feed line, wherein the plurality of coupling holes are formed in each of the layers of the serial feed line at intervals of ¼ of the wavelength (λ) of electromagnetic waves (radio waves) supplied to the serial feed line, and the horn antennas radiate the electromagnetic waves output through the coupling holes of the serial feed line.

The present application relates to the field of sun tracking sensing device, the acquisition of sunlight radiation angle needs to pass through indirect calculation or image analysis, resulting in the response delay of light radiation detection system, the high complexity of analysis, and there is cumulative error under dynamic light condition, the present application provides a kind of sun tracking sensing device and method for realizing the dynamic scanning of light radiation amount, the measurement and direct output of light radiation amount and angle are realized by two-axis holder rotation, the maximum value of light radiation amount and the angle value of corresponding light radiation amount of the place to be measured can be obtained by directly using the device of the present application at the place to be measured, direct output light radiation amount and corresponding angle reduce the dependence on continuous light intensity distribution, solve the dynamic response lag of the sun tracking device in the prior art, and the problem that light radiation amount and corresponding angle cannot be directly output, can be widely applied in photovoltaic panel fixed installation process and photovoltaic panel dynamic angle adjusting system.

The invention relates to a method for laser projection and a laser device (10) for carrying out the method. According to the invention, a method is provided by means of a laser device (10) comprising: a laser generating unit (12), by means of which a laser beam (14) can be generated; a deflection device (16), by means of which the radiation angle of the laser beam (14) can be adjusted in order to deflect the laser beam (14) along a predetermined trajectory (18); the invention relates to a method for navigating a laser beam (14) along a predetermined trajectory (18), comprising a laser generating unit (12) for generating a laser beam (14), and a control device (20) which is coupled to the laser generating unit (12) and by means of which the power of the laser beam (14) can be adjusted, in a first step, in order to navigate the laser beam (14) along the predetermined trajectory (18), a plurality of navigation angles to be controlled by means of a deflection device (16) are determined, each navigation angle being assigned a starting power, the initial power predefines the power of the laser beam (14) when the laser beam (14) is deflected between two navigation angles, and in a next step, an expected dwell duration of the laser beam (14) in the navigation section (22) is determined as a function of the number of navigation angles to be actuated directly in succession, the laser beam (14) reaches the navigation section (22) of the reference surface (24) at the navigation angle, and the laser beam (14) reaches the navigation section (22) at the navigation angle at least for a part of the number of the navigation angles, and a respective starting power of the laser beam (14) is set to a predeterminable target power in each case as a function of the determined dwell duration.

The invention provides a turbine blade radiation temperature measurement error correction method based on a reflected radiation model, and the method comprises the steps: building a reflected radiation model through considering the reflected radiation of a preceding-stage guide blade, an adjacent moving blade and a combustion chamber wall surface at the same time; calculating a radiation angle coefficient between turbine blades and a radiation angle coefficient between wall surfaces of a combustion chamber by using a surrounding channel integral method; temperature distribution of the surface of the turbine blade and the wall surface of the combustion chamber at different temperatures is obtained through comsol simulation; and designing a multiple reflection radiation formula, accurately calculating the reflection radiation of the hot end part, and obtaining a corrected radiation temperature measurement result through inversion. According to the method, reflection radiation of a front-stage guide vane, adjacent movable vanes and a combustion chamber wall surface is considered, a surrounding channel integral method is adopted, surface element shielding between blade surfaces is considered, and a turbine blade surface radiation angle coefficient is calculated; the wall surface of the combustion chamber is increased, the reflection radiation of the hot end component is considered, a multiple reflection radiation formula is designed, the accurate reflection radiation of the hot end component is obtained, the reflection radiation calculation error is reduced, and the turbine blade radiation temperature measurement precision is improved.

The invention relates to the technical field of hazardous article detection, and provides a small-size hazardous article terahertz wave band dielectric constant testing method and system, and the method comprises the steps: placing a to-be-tested material between two convex lenses, controlling a horn antenna of a spread spectrum module to emit an electromagnetic wave, and in any radiation angle, viewing the electromagnetic wave as a plane wave, acquiring an S parameter measured by the vector network analyzer, and performing conversion; obtaining the thickness of the to-be-measured material, and converting the thickness into equivalent thickness; obtaining an inversion dielectric constant through an inversion model; acquiring a radiation angle, an image distance and an object distance, converting an incident angle, and determining a conversion dielectric constant on the basis that the refraction angle and the incident angle meet the Snell law; the refraction angle enabling the difference between the inversion dielectric constant and the conversion dielectric constant to be minimum is searched, the dielectric constant under the corresponding radiation angle is obtained, the average dielectric constant is obtained through integration, and the method adapts to measurement of non-uniform samples and size-limited samples.

The utility model provides a kind of test equipment of radiation angle of ray source, applied to radiation imaging technical field, comprising: detector clamping device, control device and shielding device, detector clamping device is structured as can rotate within preset angle, suitable for clamping detector;Control device is connected with detector clamping device communication;Shielding device is set between detector clamping device and control device. Detector clamping device can rotate within preset angle can drive detector to any position within preset angle, whereby, detector can record the radiation dose of the radiation of to-be-measured ray source to any position within preset angle range, to calculate the radiation angle of the ray source to be tested according to radiation angle algorithm. The efficiency of the detector clamping device driving the detector to collect radiation dose is high, and the accuracy is high. The shielding device is set between the detector clamping device and the control device to shield the radiation damage of the rays to the detection personnel.

The utility model discloses a multi-oscillator directional PCB antenna comprising a reflecting plate, a PCB, at least three groups of oscillators, at least two combiners and at least six radio frequency lines, the PCB is arranged on the reflecting plate, the three groups of oscillators are arranged on the PCB at equal intervals, the combiners are arranged between two adjacent groups of oscillators, and the radio frequency lines are arranged between the combiners. And each group of oscillators are respectively connected with the signal input ends of the two combiners through two radio frequency lines. According to the multi-oscillator directional PCB antenna, the gains of the three groups of oscillators are increased through the combiner, and the radiation angle of the antenna is reduced through the reflecting plate, so that the forward gains are increased, and the high-gain performance can be met.

The present disclosure relates to an antenna rotation adjustment mechanism and an antenna assembly. The adjustment mechanism includes a first connecting assembly and a second connecting assembly respectively connected between the antenna and a fixed base member. The first connecting assembly has a retractable first drive assembly, one end of the first drive assembly is used to connect to the antenna, the other end of the first drive assembly is used to connect to the fixed base member, and the second connecting assembly is used to be rotatably connected to the antenna to rotate the antenna in a vertical plane relative to the fixed base member. The first connecting assembly and / or the second connecting assembly also have a second drive assembly, the second drive assembly is used to connect to the antenna and is rotatably connected to the first connecting assembly and / or the second connecting assembly to rotate the antenna in a horizontal plane relative to the fixed base member. The antenna rotation adjustment mechanism and antenna assembly provided by the present disclosure adjust the antenna radiation angle by forming a four-bar linkage structure with the first drive assembly and the second drive assembly, ensuring reliable connection and reducing structural costs.

This cutting edge has a convex curved edge that is a curve convex toward the outer circumference of the tip of a cutting insert. A rake angle (α) in a normal direction of a rake face of the convex curved edge is a negative angle over an entire length of the convex curved edge, and gradually increases to the negative angle side as an end point on a rear end side of the convex curved edge is approached at a radiation angle (θ) of 15°-90°. Where a change amount of the rake angle (α) in the normal direction per 15° of an angle range of the radiation angle (θ) is σ1, σ1 ≤ 3.0°. Where a change amount of the rake angle in an axial direction per 15° of the angle range of the radiation angle (θ) is σ2, σ2 ≤ 6.0° when the radiation angle (θ) is 60°-90°.

The present invention relates to an apparatus and a method for generating a virtual environment having a simulated artificial sky, the present invention comprising: a transparent display unit for displaying one or more sky images; a light source unit comprising a directional light source having a predetermined radiation angle; a reflective mirror disposed on the rear surface of the transparent display unit and formed so as to reflect light radiated from the light source; and a control unit for controlling the transparent display unit so as to display a sky image selected among the one or more sky images by a user, and controlling the light source unit so as to change the intensity and color temperature of the light source in accordance with the selected sky image.

The invention discloses a symmetrical angle broadband antenna, comprising a radio frequency connector and a radiation plate, wherein the radio frequency connector is fixedly connected to the radiation plate; a broadband impedance matching hole and a broadband radiation angle curve slot are provided on the radiation plate, wherein the broadband radiation angle curve slot comprises a contraction slot bottom, an opening slot, and a first angle curve slot wall and a second angle curve slot wall opposite to each other, wherein the contraction slot bottom passes through the hole wall of the broadband impedance matching hole, and the opening slot passes through one side of the radiation plate, and the area of ​​the opening slot is larger than the area of ​​the contraction slot bottom. The radio frequency signal of the symmetrical angle broadband antenna is transmitted to the radiation plate by the radio frequency connector, and through the tuning of the broadband impedance matching hole, approximately non-reflection radio frequency transmission within a broadband can be achieved; then, the radio frequency signal is successively converted into a spatial electromagnetic wave along the broadband radiation angle curve slot and radiated outward, thereby achieving a broadband and high-gain radiation effect. In addition, the structure and manufacturing process are simple, the cost is low, and the application prospect is broad.

The application relates to the technical field of sonar measurement cavity, and particularly provides a phased array measurement cavity sonar device and a detection method, which comprises an instrument body, a data acquisition short section used for emitting and receiving sound wave data, a rotating motor installed between the instrument body and the data acquisition short section and used for driving the data acquisition short section to rotate for measurement, and N acoustic transducers, wherein N is a positive integer, the N acoustic transducers are distributed in an array mode along the axial direction of the data acquisition short section, the N acoustic transducers emit directional sound waves in a phased array mode and receive reflected sound wave signals from the cavity interface, the distance between the acoustic transducers and the cavity section is measured, and a three-dimensional cavity diagram is synthesized according to the distance, the direction and the phased angle information measured by the acoustic transducers. The sonar device adopts phase control to control the radiation angle, thereby saving the device stable balance time, simplifying the mechanical structure and improving the measurement efficiency.

A light detection and ranging (LiDAR) device for a vehicle according to an embodiment of the present disclosure may include a heater supplying heat to a radiator, and a processor that controls the heater to control a radiation angle of a first direction of the radiator by transmitting a command for supplying power to the heater, in an FPA system including a pixel array of 1×N arrays for the first direction and a second direction, in which each pixel of the pixel array includes the radiator radiating light.

The utility model relates to the technical field of sound reinforcement, in particular to a linear array micro loudspeaker capable of expanding directivity, which can independently control the waveguide of the radiation angle of each high-pitch loudspeaker, and the high-pitch loudspeakers radiate towards different directions, so that the sound coverage range is wider; comprising a supporting part, the height of the supporting part is continuously and gently decreased from the middle to the two ends, a first loudspeaker is arranged in the central area of the supporting part, the supporting part is further provided with two second loudspeakers, and the two second loudspeakers are located on the two sides of the first loudspeaker respectively.

The invention relates to a space station heating furnace temperature field calculation method, device and equipment and a medium, and relates to the technical field of thermal calculation, and the method comprises the steps: obtaining geometric models, thermophysical parameters and movement displacement conditions of a heating furnace and materials in the furnace, generating an initial calculation grid, determining a target calculation grid at the current time based on the movement displacement conditions, and calculating the temperature field of the heating furnace. The heating power of the heating furnace is determined through a PID control algorithm, the surface radiation angle coefficient is calculated through a semi-cube method according to the target calculation grid and the simulation temperature of the previous moment, so that the surface heat radiation flux is obtained, and finally new temperature field distribution is determined by combining a transient heat conduction equation. The method achieves the technical effects of accurately calculating the temperature field distribution of the heating furnace and the materials in the furnace, considering factors such as material movement and radiation heat exchange, and being more suitable for actual working conditions.

The utility model belongs to the technical field of antenna supports, and particularly relates to a mounting support of an angle steel tower antenna, which comprises an angle steel tower, and a pair of first angle steel is arranged on the left side wall of the angle steel tower. The first angle steel and the second angle steel are attached to the two sides of the angle steel tower, the installation screws are screwed into the first angle steel and the second angle steel and connected with the angle steel tower, the adjusting plate is inserted into the adjusting base and rotated according to needs, and therefore the proper installation direction is selected; the adjusting strip is rotated to drive the inserting rods; the proper adjusting holes are selected according to the direction of the adjusting plate; according to actual conditions, the extension length of a sliding plate in an adjusting plate is adjusted, locking is performed by screwing a second screw into a proper length hole, so that the extension distance of the antenna equipment is changed, the second hoop and the first hoop are connected through a fixing screw, the holding pole is fixed, and the antenna equipment is installed on the holding pole. The radiation direction of the antenna support can be adjusted according to actual use requirements, the radiation angle is changed, the strength of received signals is improved, and the practicability is good.

The invention provides a three-dimensional quartz lamp temperature control heating virtual test method, and the method comprises the steps: building the three-dimensional heat flow distribution of a quartz lamp heater for the radiation heating of the surface of a test piece based on a radiation angle coefficient, and obtaining the nominal heat flow of the quartz lamp heater through a control feedback method; and a quartz lamp heater temperature control heating process in a ground test is simulated, so that efficient virtual thermal test simulation is realized.

The present invention provides a method for correcting the radiation temperature measurement error of turbine blades based on a reflection radiation model, including: simultaneously considering the reflected radiation of the front-stage guide vane, adjacent moving blades, and the combustion chamber wall surface, establishing a reflection radiation model; using the contour integral method to calculate the radiation view factors between turbine blades and between the combustion chamber wall surfaces; obtaining the temperature distributions of the turbine blade surfaces and the combustion chamber wall surfaces at different temperatures by means of Comsol simulation; designing a multiple-reflection radiation formula to accurately calculate the reflected radiation of the hot-end components, and obtaining the corrected radiation temperature measurement result through inversion. The present invention considers the reflected radiation of the front-stage guide vane, adjacent moving blades, and the combustion chamber wall surface, adopts the contour integral method, considers the element occlusion between blade surfaces, and calculates the radiation view factors of the turbine blade surfaces; adds the combustion chamber wall surface, considers the reflected radiation of the hot-end components, designs a multiple-reflection radiation formula, obtains the accurate reflected radiation of the hot-end components, reduces the calculation error of the reflected radiation, and improves the accuracy of the radiation temperature measurement of turbine blades.

The invention discloses a high-rise tower temperature field calculation method and device, electronic equipment and a computer readable storage medium, and relates to the technical field of building structure health monitoring, and the high-rise tower temperature field calculation method comprises the steps: building a radiation model of a tower and radiation heat exchange data of the tower according to structural parameters of the tower; acquiring real-time meteorological data and historical meteorological data; determining wind field distribution data of the structural surface of the tower drum according to the real-time meteorological data; according to the wind field distribution data, convective heat transfer data of the tower drum are determined; determining radiation intensity data and radiation angle data of the sun according to the real-time meteorological data and the historical meteorological tree; and according to the radiation model, the radiation heat exchange data, the convective heat exchange data, the radiation intensity data and the radiation angle data, determining temperature distribution data of the tower. According to the invention, the accuracy of thermal analysis of the tower drum is improved.