145 results about "Particle flow" patented technology

The invention relates to the technical field of high-pressure precise physical experiments, in particular to an irradiation sample table. A to-be-tested sample is placed on the sample table, and the second gland and the first gland are detachably connected to the sample table in sequence, so that the holes in the first gland and the second gland correspond to the to-be-tested sample. The size of the hole is smaller than the diameter of the to-be-detected sample, so that the radiation area is smaller than the diameter of the to-be-detected sample; moreover, the second gland is a ceramic gland and has good insulation performance, so that the situation that plasma directly bombards a sample table to generate an edge effect during irradiation, and adverse effects on judgment and separation of real particle flow density distribution borne by the surface of the to-be-detected sample are generated can be avoided. When samples of different sizes need to be replaced, only the first gland and the second gland which are provided with the open holes matched with the samples in size need to be replaced, operation is easy and fast, cost is low, and the experiment continuity and efficiency cannot be affected.

The self-adjusting abrasive flow clamp is suitable for machining a tee joint through the abrasive flow technology and is characterized in that the self-adjusting abrasive flow clamp comprises a base, a baffle ring, a surrounding cylinder, a first arc-shaped bent pipe, a second arc-shaped bent pipe and a third arc-shaped bent pipe, opening structures are arranged at the two ends of the surrounding cylinder, a mounting hole is formed in the baffle ring, and an arc-shaped protrusion is arranged on the top face of the base; when abrasive particles enter through the third arc-shaped bent pipe, the abrasive materials flow out only through the first arc-shaped bent pipe; when the grinding materials are input through the groove, the grinding materials enter the tee joint through the second arc-shaped bent pipe and are output through the top end of the third arc-shaped bent pipe, the tee joint grinding efficiency is improved, and time consumption is reduced.

The invention discloses a current deposition calculation method and device in particle grid simulation and a storage medium, and relates to the technical field of particle flow simulation, and the method comprises the steps that a VPU determines the shape function value of each dimension of a particle and the current weight of each dimension based on the particle data of the particle corresponding to a target grid unit; taking two particles with adjacent index positions as a particle pair, and constructing a first operand vector and a second operand vector corresponding to the particle pair by the VPU based on the shape function value and the current weight of each dimension; the MPU executes matrix outer product operation on the first operand vector and the second operand vector, matrix outer product operation results in the target grid unit are accumulated until a total contribution matrix corresponding to the target grid unit is obtained, the VPU merges the total contribution matrix to a global current array, and the global current array is obtained. The technical problem that the performance of the particle grid simulation algorithm is limited due to the multi-thread writing conflict in the global merging stage is solved, and the expandability and the calculation efficiency of the particle grid simulation algorithm are improved.

The present application relates to the technical field of radar detection, and particularly relates to a particle flow multi-parameter detection method based on MIMO-FMCW radar, a medium and equipment, the particle flow multi-parameter detection method based on MIMO-FMCW radar comprises the following steps: S1, arranging a virtual channel array structure of × in a detection area, and obtaining a digital signal matrix of multiple frames of measurement data corresponding to the detection area by using the virtual channel array structure; S2, obtaining multiple parameters of the particle flow in the detection area based on the digital signal matrix.The present application synchronously obtains data in the time, frequency and spatial domain by using the MIMO-FMCW radar system, realizes the joint measurement of the multiple parameters of the particle flow, can extract the speed information by the Doppler effect of the FMCW signal, can form a virtual channel to extract the angle information, and simultaneously combines the signal amplitude to estimate the concentration, so that comprehensive particle flow movement characterization is realized.

The application discloses a kind of abrasive grain flow microchannel polishing quality reliability analysis systems, including abrasive grain flow polishing system, quality detection system and reliability analysis system, the abrasive grain flow polishing system is used in the polishing processing of microchannel in microfluidic chip;The quality detection system is used to carry out quality detection to the microchannel after processing, and obtains detection value R1;The reliability analysis system carries out reliability analysis to processing quality, and the information basis of analysis is processing parameter P and the microchannel processing quality detection value R1 obtained by detection;The reliability analysis system transmits adjusted processing parameter to the abrasive grain flow polishing system, and is used to control microchannel polishing.The application also discloses a kind of abrasive grain flow microchannel polishing quality reliability analysis method.The application utilizes new learning function, and the correlation coefficient introduced by new learning function, improves the accuracy of model in threshold value vicinity, and can avoid the accuracy in low correlation area, ensures the accuracy of reliability analysis.

The application discloses a micro-fluidic chip and a micro-fluidic system, and relates to the technical field of single-cell analysis. The micro-fluidic chip comprises a first sample inlet module and a second control module. The first sample inlet module has a first detection position and a second detection position. The first sample inlet module is used for providing first particles and second particles. The first detection position is used for detecting the first particles. The second detection position is used for detecting the second particles. The first sample inlet module transports the detected first particles and second particles through a symmetrically arranged flow channel structure. In addition, the first detection position and the second detection position are symmetrically arranged, so as to shorten the time difference of the first particles and the second particles flowing to the pairing flow channel, and to improve the problem of hysteresis of any one of the first particles and the second particles in the pairing process.

The utility model relates to the technical field of plastic particle screening, in particular to a screening mechanism of a plastic granulator, which comprises a bottom plate and a screening box, an inclined socket is clamped on one side of the screening box, a small-hole screen plate, a medium-hole screen plate and a large-hole screen plate are respectively clamped on one side of the inclined socket, and two side plates are fixedly connected with one end of the screening box. According to the plastic particle blanking device, the baffle is moved to the position between the small-hole sieve plate and the middle-hole sieve plate, then plastic particles are intercepted by the blocking plate and roll downwards, the blanking speed of the plastic particles is reduced, the time of the plastic particles staying on the small-hole sieve plate is prolonged, and the plastic particles are prevented from falling off from the middle-hole sieve plate. According to the plastic particle screening mechanism, plastic particles can be better screened through the small-hole screening plate, then the plastic particles can be continuously turned over through the two transverse plates on the driven rotating rod, it is ensured that the plastic particles flow and are fully and comprehensively screened, it is avoided that the plastic particles are accumulated at one position all the time, screening work is accelerated, and the production efficiency of the screening mechanism is improved.

To provide an in-vacuum pipe particle monitoring device and an in-vacuum pipe particle monitoring method for widely monitoring particles contained in gas flowing in a vacuum pipe.SOLUTION: A vacuum piping particle monitoring device (1) and a vacuum piping particle monitoring method, which are characterized by having a first pipe (6), a second pipe (2) through which a gas containing particles flows, an intersection (5) where the first pipe (6) and the second pipe (2) intersect, a light film forming means for forming a planar light film (13) inside the first pipe (6), and an observation means (21) for observing scattered light emitted by the particles, wherein the light film (13) is formed so as to cover at least 10% of the cross-sectional area of the second pipe (2) at the intersection (5), and the scattered light is emitted by the particles coming into contact with the surface of the light film at the intersection (5).SELECTED DRAWING: Figure 2

This invention relates to a coal and rock identification system and method based on spectral detection, comprising a collection chamber and a detection device. The detection device includes a detection chamber, a detection tube, a spectral detection mechanism, and a first suction mechanism. One end of the detection tube is connected to or disconnected from the collection chamber, and the other end extends into the detection chamber. During detection, the collection chamber is first disconnected from the detection tube, and the first suction mechanism suctions the detection chamber to create a pressure difference, resulting in a lower air pressure in the detection chamber than in the collection chamber. After suction, the detection tube is reconnected to the collection chamber, and dust particles in the collection chamber form a particle flow within the detection tube under the pressure difference. The spectral detection mechanism detects the particle flow within the detection tube. This invention utilizes static pressure difference to achieve rapid and stable dust settling to form a particle flow, improving the stability of spectral detection and accelerating the overall detection speed, enabling real-time and accurate identification of coal and rock during coal mining.

The application relates to the technical field of particle flow simulation, in particular to a CAE simulation method for C-type particle flow state based on a double Euler model, which defines model parameters under a secondary agglomeration theoretical model according to the agglomeration mechanism of C-type particles from initial agglomeration to secondary agglomeration, the model parameters including particle phase diameter, particle phase density, particle phase volume fraction and particle phase shear viscosity, thereby establishing a local dynamic agglomeration particle model (LDAP model) for C-type particles based on an Euler multiphase flow model, and performing C-type particle flow state simulation; the method can realize the setting of numerical simulation conditions and the simulation of the flow behavior of C-type particles through simple flow field calibration and parameter setting, can intuitively reflect the real-time state of the particle agglomerate diameter at any local position in the flow field, has higher accuracy in describing the motion state of particles and gas under the condition of particle agglomerate diameter difference, and can balance the calculation efficiency without increasing the number of particle phases for varying particle diameters.

The invention provides a particle control device and method based on a special sound wave sound beam, and the device comprises a micro-channel which comprises a first channel; the particle focusing unit is used for arranging particles in the fluid in the first flow channel in a queue and enabling the particles to pass through the following detection units one by one; the detection unit is used for detecting the particles in the queue so as to identify the first particles included in the queue; and the first special ultrasonic device is tightly attached to the micro-channel and is used for generating a special sound wave beam current with expected intensity when the first special ultrasonic device is started, and the first particles flowing through the first special ultrasonic device are driven to flow to other laminar flow in the first channel or flow to a target channel through the special sound wave beam current. According to the invention, deviation of the moving direction of the target particles can be accurately controlled.

This invention relates to multiphase numerical simulation and discloses a multi-scale particle flow calculation method based on Fibonacci volume partitioning. The steps include: obtaining the particle (velocity, coordinates, particle size, expansion coefficient) and fluid mesh (volume, velocity, coordinates) parameters for the current time step; filtering the particle background mesh and extracting its parameters; generating uniformly distributed discrete points based on particle information and mesh size, and allocating the volume of each point to the corresponding element to calculate the fluid mesh porosity; calculating the particle background porosity and background velocity based on the mesh parameters within the expansion domain; determining the relative velocity and calculating the particle drag force based on the particle velocity, background velocity, background porosity, and particle size; substituting the drag force into the momentum equation to obtain the state parameters of the particle and fluid mesh for the next time step, thus realizing multi-scale particle flow.

The invention relates to a microfluidic chip for cell sample enrichment and detection by a Dean flow method based on impedance feedback, in particular to a Dean flow microfluidic chip for realizing flow velocity adjustment through impedance detection. The device comprises a Dean flow micro-fluidic chip, an off-chip fluid driving module, a detection module and a control module, the fluid driving module is used for driving fluid in the Dean flow micro-fluidic chip so as to control the flow velocity; the detection module is used for detecting impedance data on a Dean flow channel, amplifying the impedance data, collecting the impedance data and then calculating the impedance data; and the control module is used for analyzing and calculating the calculation result of the detection module to obtain the flow speed required by the Dean flow channel and feeding back the flow speed to the fluid driving module. Impedance detection can be carried out on the enrichment effect of the micro-fluidic chip under various Deen flow systems in real time, impedance detection contains particle size, particle concentration and particle flow channel position information, and the characteristics of easy arrangement, real time and high efficiency are achieved.

The application discloses a high-pressure gas and particle contact type heat exchange device and a solar light and heat power station, wherein the heat exchange device comprises a high-temperature particle storage tank, a low-temperature particle storage tank, a heat exchanger and a plurality of high-temperature particle flow channels and a plurality of low-temperature particle flow channels; the high-temperature particle storage tank is communicated with a particle inlet of the heat exchanger through the high-temperature particle flow channels; the low-temperature particle storage tank is communicated with a particle outlet of the heat exchanger through the low-temperature particle flow channels; a plurality of first gas flow resistance members are arranged on the high-temperature particle flow channels; a plurality of second gas flow resistance members are arranged on the low-temperature particle flow channels; the gas flow resistance members change the gas flow direction and make the high-pressure gas be restrained in the particle flow channels. The particles and the high-pressure gas are directly exchanged in the heat exchanger, the high-pressure gas can be restrained in the particle flow channels, the high-pressure gas cannot enter the high-temperature and low-temperature particle storage tanks, the particle storage tanks are always operated under normal pressure, and the cost of the particle storage tanks and the heat exchanger is reduced.

The present application relates to intelligent manufacturing and production scheduling technical field, specifically for turning and milling machining center production scheduling management system;Contain data acquisition, particle mapping, potential field construction, evolution calculation and scheduling generation module;System obtains order and resource state, maps the order into virtual particle flow with spin attribute, and converts the resource into gravitational potential well;Its core is based on the principle of free energy minimization, driving particles in multidimensional space-time potential field to carry out gradient evolution;When the total energy of the system converges, the particle steady-state coordinates are locked to generate the schedule;The present application converts discrete scheduling into physical field energy minimization problem, uses gradient guidance instead of blind search, and solves the problem that static algorithm is difficult to balance calculation depth and response speed.

The application discloses a system and a method for accelerating the degradation of solid nuclear waste, aiming at eliminating radioactive hazards from the root. The system comprises an inner barrier, an intermediate filling layer and an outer barrier. The inner barrier is made of functional parallel nanotube material, the outer barrier is a titanium alloy container, and the intermediate filling layer is nanotube grade graphene powder. The method is to wrap the solid nuclear waste in the inner barrier, assemble it through the intermediate filling layer and the outer barrier, and then store it in a deep geological environment. Through the strong parallel force field created by the inner barrier and the parallel wave particle flow in the environment, the energy is gathered to deconstruct the cross superposition operation state of the basic particles of the nuclear radiation source. The scheme combines advanced material science, photon physics and philosophical thought, realizes the complete elimination of radioactive hazards, provides the possibility for the transformation and reuse of solid nuclear waste, and has environmental protection and innovation.

To accurately detect fine particles without complicating a device configuration.SOLUTION: The condensation particle counter includes a supply unit configured to supply a working fluid to a periphery of an inlet of a condensation tube through which an aerosol containing sample particles flows, a saturation unit configured to saturate the aerosol with vapor of the working fluid, and a control unit configured to condense and grow the aerosol into droplets using the sample particles as nuclei and extract the aerosol containing the droplets from a center axis of a condensation-growth tube connected to the condensation tube. A condensation and growth section that and exhausts excess working fluid that has flowed down an inner wall of a condensation and growth tube, vapor of the working fluid that has condensed on the inner wall, and water vapor together with excess aerosol, a flow rate control section that controls a flow rate of the aerosol flowing through a capillary tube that the aerosol containing droplets after condensation and growth at a minute flow rate, a double cylindrical sheath flow that positions the aerosol that has passed through the capillary tube on an extension line of a central axis of the capillary tube, and a droplet counting section that counts the droplets contained in the aerosol based on the droplets flowing through the capillary tube, wherein the working fluid contains an alkane having a carbon number of 14 or less.SELECTED DRAWING: Figure 1

The utility model relates to the technical field of deburring devices, in particular to an abrasive flow deburring clamp which comprises a panel, a bottom plate and a plurality of middle sleeves, the middle sleeves are all arranged between the panel and the bottom plate, the middle sleeves are provided with containing spaces, the upper ends and the lower ends of the containing spaces penetrate through the upper ends and the lower ends of the middle sleeves respectively, the panel is provided with first through holes, and the bottom plate is provided with second through holes. A second through hole is formed in the bottom plate, a plurality of flow channels are formed in the edge of the containing space, and the tops of the flow channels penetrate through the top of the containing space. A plurality of products are placed in the middle sleeves at the same time and processed through the abrasive flow liquid polishing machine, batch deburring operation is achieved, due to the fact that each product is independently placed in the containing space of the middle sleeves, and the flow channels are formed between the middle sleeves, it is guaranteed that abrasive flow is evenly distributed, and the product quality is improved. And mutual contact and friction between products are avoided, so that surface scratching and bumping are effectively prevented, and burrs and burrs on complex parts such as cross holes can be more effectively removed.

The application discloses a method, system, device and medium for simulating aerodynamic force data of a near space vehicle, comprising: obtaining particles not participating in collision in a physical grid through a competition weight mechanism, and counting the number of particles not participating in collision flowing into adjacent physical grids to obtain flux of a particle solver; obtaining total flux between adjacent physical grids based on macro flux between the adjacent physical grids and the flux of the particle solver; updating physical quantities in the physical grid, obtaining flow field density based on the physical quantities in the physical grid; judging whether the flow field density obtained at an adjacent time step is less than a set threshold; and if yes, outputting a simulated flow field and a flow characteristic parameter. The application accurately simulates cross-flow problems existing in a flow field of a near space vehicle, simulates an aerodynamic shape of the near space vehicle and obtains aerodynamic force data of the near space vehicle, and solves the problem that existing simulation methods cannot consider both calculation efficiency and calculation accuracy.

A method for simulating dissolution within a reservoir over a determined time period includes receiving a graph model of the reservoir comprising nodes and connections between the nodes, wherein each node is associated with at least one geological parameter, and simulating dissolution induced by a plurality of particles flowing through the reservoir during the time period. Each particle corresponds to both a volume of fluid and a volume of rock that the particle is able to dissolve. Simulating dissolution comprises, for each particle: determining a path of the particle through the graph model, determining a volume of rock dissolved by the particle at each node belonging to the path of the particle from the total volume of rock dissolved by the particle within the reservoir, and modifying the geological parameters associated with the nodes of the path according to the dissolved volume of rock at each node.

The application relates to an acceleration measuring device based on a particle image velocimetry, which comprises at least two CCD cameras, the center points of the mirrors of the two CCD cameras are located on a straight line through a limiting device; a tracer particle generator is used for emitting tracer particles along the direction vertical to the normal of the mirror of the CCD camera; a four-pulse laser is used for sequentially emitting four pulse laser beams along the direction vertical to the direction of the particle flow to illuminate the tracer particles; a control device is connected with the CCD camera and the four-pulse laser respectively, and is used for synchronously controlling the CCD camera and the four-pulse laser, so that the CCD camera acquires the tracer particle images under the irradiation of different pulse lasers in a double-exposure mode, and the speed and acceleration of the particles are acquired based on the tracer particle images. Since the four-pulse laser capable of sending four high-energy pulse lasers at a time is adopted, at least four particle images with a very short time interval are acquired by using two CCD cameras, and then the particle acceleration can be acquired.

The invention provides a maneuvering target correlation and tracking method under sparse observation based on a bimodal particle flow, and the method comprises the steps: constructing a core layer and exploration layer bimodal particle swarm with differentiated process noise, and employing a particle individual nearest neighbor normalization distance based on measurement noise as a soft gate correlation criterion. And the overall particle distribution is corrected by using a particle flow algorithm after exploration of particle capture observation. According to the method, the problem of deadlock caused by excessive confidence can be solved, accurate tracking of the sudden maneuvering target is always kept, the robustness under sparse observation can be remarkably improved, and breakpoint-free tracking can be realized. Moreover, the method does not need to maintain a plurality of filter models like an IMM algorithm, can achieve the coverage of a plurality of motion modes only through the adjustment of the particle noise distribution, is suitable for the real-time implementation of an engineering, and is more suitable for GPU parallelism.

The application relates to a magnetic abrasive flow polishing system and method, and belongs to the polishing technical field.The magnetic abrasive flow polishing system comprises a liquid storage pool, an inlet pipeline, an outlet pipeline, a pump body, a backflow pipeline and a magnetic attraction device.The inlet pipeline is connected with the liquid storage pool and the inlet end of a polishing channel.The outlet pipeline is connected with the liquid storage pool and the outlet end of the polishing channel.The backflow pipeline is connected with the inlet pipeline and the liquid storage pool.The magnetic attraction device is installed outside the backflow pipeline.The magnetic attraction device is used for adsorbing the magnetic abrasive particles in the abrasive particle fluid in the backflow pipeline on the inner wall surface of the backflow pipeline, so as to adjust the number of the magnetic abrasive particles in the abrasive particle fluid in the inlet pipeline.The magnetic abrasive flow polishing system and method can adsorb the magnetic abrasive particles on the backflow pipeline, adjust the number of the magnetic abrasive particles in the abrasive particle fluid in the inlet pipeline, reduce the possibility of blocking the whole system channel by the abrasive particle fluid, and change the polishing effect.

A particle generator (1) for testing or calibrating particle measuring devices (5) is proposed, which has a reaction chamber (2), a drying chamber (3) downstream of the reaction chamber (2), wherein air is supplied to the reaction chamber (2) via a supply line (11) and the output of the drying chamber (3) can be connected to a particle measuring device (5) via a connecting line (12).In order to provide a particle stream or aerosol for testing or calibrating a particle measuring device (5) in a cost-effective manner, it is proposed that the reaction chamber (2) has a porous layer (21) on which a salt solution (22) is arranged, and that the supply of air into the reaction chamber (21) is made below the porous layer, so that rising bubbles are generated in the salt solution which, when they burst, release salt particles which are dried in the drying chamber (3) before the particles flow to the connecting line (12) in the form of an aerosol.

The invention relates to the technical field of abrasive flow machining equipment auxiliary devices, in particular to an abrasive flow equipment single-outlet-to-multi-outlet universal flow dividing tool which comprises a base, an adapter, a sealing plug and a hydraulic oil pipe. The foundation seat is a foundation of the whole tool structure, all the accessories are connected to the foundation seat, the outer side face of the foundation seat is provided with a plurality of sets of flow dividing holes in the radial direction and communicated with a plurality of flow channels, the adapters and internal threads of the flow dividing holes are installed in a matched mode, the two ends of the hydraulic oil pipe are provided with nuts, and the foundation seat and a matched tool are connected to convey abrasive particles. The flow dividing tool overcomes the defects that an existing flow dividing tool of abrasive flow equipment is poor in adaptability, uneven in flow dividing and unreliable in sealing, is used for the abrasive flow equipment, can achieve conversion from a single outlet to multiple outlets of the abrasive flow equipment, achieves flexible adaptation to parts of different sizes and different shapes, guarantees that the pressure and flow of abrasive media of all the outlets are uniform, and improves the flow dividing efficiency of the abrasive flow equipment. And meanwhile, the sealing performance in a high-pressure state is ensured, and the abrasive flow machining efficiency and machining quality are remarkably improved.

The application provides a stepped particle heat absorber, comprising: a heat absorber body, which is arranged in a stepped manner; a particle inlet is arranged above the top of the heat absorber body; and a particle collector is arranged below the heat absorber body and used for collecting particles falling from the heat absorber body. The stepped rotating particle heat absorber provided by the application adopts an external heat absorption structure, can absorb heat in the whole circumferential direction, and increases the layout area of the mirror field. The application adopts a disc type stepped falling structure, delays the falling speed of the particles, controls the particle heat absorption process, improves the temperature rise of the particles per unit stroke, and the disc structure can realize automatic distribution of the particles; the adjustment of the particle flow can be realized through a conventional adjusting valve installed on a conveying pipeline. The whole disc structure is in a rotating state, and the temperature difference of the particles caused by the difference of the solar energy reflected by the mirror fields in different directions is eliminated.

Disclosed is an electric propulsion system (110, 210) utilizing particles collected from atmosphere, the electric propulsion system having a first end (112) facing, when in use, incoming flow of particles (102, 202) and an exit aperture (252) at a second end (114) to eject accelerated particles to generate thrust, the electric propulsion system comprising an active intake module (220, 320A, 320B, 320N) having an opening (222, 322A, 322B, 322N), an active compression mechanism (224) and a first output (226); a guiding channel (230, 330) comprising a splitter (332, 432); the ion thruster; and the cathode.

The invention discloses abrasive particle flow finishing machining equipment for metal machining machinery manufacturing, and relates to the technical field of metal machining, the abrasive particle flow finishing machining equipment comprises a support, a lower cylinder with an upper opening is fixed to the support, an upper cylinder with a lower opening is arranged on the lower cylinder, and a closed cavity can be formed when the lower cylinder and the upper cylinder are attached; a lower piston is arranged in the lower cylinder in a sliding mode, and an upper piston is arranged in the upper cylinder. An inner ring is fixed to the upper portion in the lower cylinder, a connecting ring is arranged in the inner ring, and clamping blocks are arranged on the two sides of the connecting ring. A connecting pipe penetrating into the lower cylinder is arranged on the side wall of the lower cylinder; compared with the prior art, burrs and microcosmic peaks and valleys can be effectively removed, the surface roughness is reduced, meanwhile, through the matched design of the sliding shaft and the rotating shaft, the radial clamping force provided by the clamping hydraulic cylinder is kept in the angle adjusting process of a workpiece, and stability and safety in the machining process are guaranteed.

The invention relates to the technical field of intelligent manufacturing and production scheduling, in particular to a turn-milling machining center production scheduling management system. The system comprises a data acquisition module, a particle mapping module, a potential energy field construction module, an evolution calculation module and a schedule generation module. The system obtains an order and a resource state, the order is mapped into a virtual particle flow with a spin attribute, and the resource is converted into a gravitational potential energy well; the core of the method is to drive particles to perform gradient evolution in a multi-dimensional space-time potential energy field based on a free energy minimization principle; when the total energy of the system converges, locking the steady-state coordinates of the particles to generate a schedule; according to the method, discrete scheduling is converted into physical field energy minimization, gradient guidance is used for replacing blind search, and the problem that it is difficult for a static algorithm to balance calculation depth and response speed is solved.

The application discloses a kind of single particle aerosol monitoring device and method based on multi-angle laser scattering, it is related to single particle aerosol monitoring field, the device includes the sampling module, optical module and analysis module connected in turn, sampling module is used to separate stable airflow from ambient air, and the stable airflow is focused, forms single particle particle stream, optical module is used to irradiate single particle particle stream and obtain the multi-angle scattering light information of particle in single particle particle stream, analysis module is used to process the multi-angle scattering light information, identify effective particle, and output effective particle characteristic and concentration data, the application can realize to single particle aerosol particle high precision, high reliability Real-time monitoring and analysis.