60 results about "Particle sorting" patented technology

The invention discloses an aggregate random distribution concrete PFC (Power Factor Correction) simulation method, which comprises the following steps: a model selection step: determining a parallel bonding model as a mechanical model for concrete material simulation; a cement mortar matrix generation step of generating a cement mortar matrix by using particles in a set size range in a set space range based on the model, and setting pore density, particle density and contact model parameters; a coarse aggregate random distribution simulation step: randomly covering and grouping original particles in the matrix in a grouping and range mode; a concrete numerical model construction step: determining particle classification so as to distinguish cement mortar and coarse aggregate; and a model reliability verification step: comparing indoor test results through a uniaxial compression test. According to the method, the simulation accuracy is improved, the randomness of aggregate is reduced, the model reliability is ensured, the matrix simulation refinement degree is improved, and a method is provided for concrete modeling and performance research.

The utility model discloses a coral sand particle size and shape double sorting device which comprises a plurality of sorting systems, a sorting system fixing support and a screening machine, and the sorting systems comprise a particle size sorting system, a flaky particle sorting system and a block-shaped and rod-shaped particle sorting system which are sequentially connected from top to bottom. The screening machine is compatible with an existing standard inspection screening machine and is simple in structure, complex mechanical equipment does not need to be introduced on the basis that a traditional particle size sorting function is reserved, the screen is customized according to needs during use, and the equipment transformation cost is remarkably reduced; the device disclosed by the utility model can be used for simultaneously screening various sample particles in different target particle size ranges and respectively screening the sample particles in different target particle size ranges in a sheet shape, a block shape and a rod shape.

The utility model discloses a needle-sheet-shaped railway ballast particle screening device, and relates to the technical field of railway engineering material detection and particle sorting. When the number of the screen assemblies is larger than or equal to 2, the screen assemblies are sequentially stacked in the vertical direction. In the vertical direction, the average particle size of the corresponding size fraction of each screen assembly is gradually reduced from top to bottom in sequence; the screen assembly comprises a needle-shaped screen device, a sheet-shaped screen device and a grading screen device which are sequentially communicated from top to bottom in the vertical direction. A plurality of first screen holes are formed in the bottom of the needle-shaped screen device, and the first screen holes are used for intercepting needle-shaped particles in the size fraction; a plurality of second screen holes are formed in the sheet-shaped screen mesh device, and the second screen holes are used for screening sheet-shaped particles in the size fraction to fall onto the grading screen mesh; a plurality of third screen holes are formed in the grading screen device, and the third screen holes are used for conducting preliminary screening on the size fraction corresponding to the next screen assembly. And efficient separation of needle-sheet-shaped particles is achieved, and the working efficiency is improved.

The invention provides a tailing particle classification method based on multi-dimensional morphological feature compression and clustering, and belongs to the technical field of geotechnical engineering, mineral processing and particle classification, and the method comprises the following steps: S1-S6, obtaining an STL file database of tailing particles; s7, calculating and extracting morphological parameters to form an original parameter data set; s8-S10: obtaining a three-dimensional morphological parameter set which retains the original morphological feature information; s11-S12, determining an optimal clustering number by adopting an elbow rule, a contour coefficient and Gap statistics, and performing particle morphology clustering grouping on the three-dimensional morphology parameters by adopting a K-means algorithm; and S13, carrying out stacking test simulation on the clustered particle categories by using a discrete element method, analyzing the stacking density and the average coordination number of different categories of particles, and verifying the physical significance of a classification result. The tailing particle classification method can systematically and efficiently integrate particle multi-dimensional form information, can directly associate the information with macroscopic physical and mechanical properties, and is data-driven, clear in mechanism and explainable in result.

The invention is directed to a micromechanical device for sorting at least two distinct fractions of target particles and at least one non-target target particle from each other, all suspended in a fluid, comprising: - a source of magnetic flux (1) - a movable member (2) comprising permeable magnetic material (3) wherein the movable member (2) is moved from a first position (4) to a second position (5) and / or one or more third positions (6) by applying a magnetic flux to the movable member (2) - a sample inlet channel (7) through which the fluid flows into the micromechanical device - a first output channel (8) which the movable member (2) diverts the non-target particles while being in the first position (4) - a second output channel (9) into which the movable member (2) diverts one distinct fraction of the target particles while being in the second position (5) - one or more third output channels (10) into which the movable member (2) diverts further distinct fractions of the target particles while being in one of the one or more third position (6) - a spring (11) attached to the movable member (2) providing mechanical resistance to the movable member (2) when moving from the first position (4) to the second position (5) and / or to one or more of the third positions (6) characterized in that the spring (11) has non-linear elastomechanical properties when the movable member (2) is at the second position (5) and / or at one or more of the third positions (6).

The invention relates to a particle micro-explosion combustion event detection and particle classification method based on multi-factor scoring, which takes a trajectory splitting event as a core, combines and analyzes a'termination trajectory 'and a'new trajectory' as a candidate condition of a primary micro-explosion combustion event, and converts a tracking problem from position tracking into identification and judgment of a physical process. Tracking errors caused by accidental factors in the particle tracking process can be reduced; through a two-step screening strategy of'deterministic screening 'and'probabilistic screening', the inherent'velocity attribute 'of the sub-particles can be effectively combined, a group determined as the sub-particles is firstly screened out, and the calculated amount of subsequent'probabilistic screening' is reduced; furthermore, a comprehensive scoring model is established, the micro-explosion characteristics of the mother particles are associated with the group characteristics of the child particles, a'probabilities screening 'strategy based on multi-dimensional associated information analysis is formed, the accuracy of particle classification is effectively improved, and high-precision and high-robustness recognition of the metal particle micro-explosion combustion event in the motion state is achieved.

The invention relates to the technical field of particle sorting, and discloses calf concentrate raw material mildewed particle sorting equipment which comprises a mounting shell, a plurality of rectangular mounting parts distributed at equal intervals are arranged outside the mounting shell in a sleeving mode, a feeding port is formed in the upper portion of the mounting shell, and a triangular discharging block is arranged in an inner cavity of the feeding port; discharging ports are further formed in the two opposite side walls of the mounting shell, discharging port sealing plates are arranged on the discharging ports, and the two discharging port sealing plates are symmetrical to each other. According to the device, through cooperation of the special-shaped sliding groove openings and the sliding balls, the fixing plate is driven to press downwards to promote the placement plate to incline, air nozzles of the air exhaust shell are matched for auxiliary discharging, an inclined discharging plate is matched for guiding, mildew detection and sorting are completed synchronously, and sorting is efficient; the whole structure is stably installed through a rectangular installation part, the raw material storage and detection accuracy is guaranteed through a discharging port sealing plate and a placing plate sealing plate, the sorting reliability is greatly improved, and the calf breeding safety is guaranteed in an assisting mode.

The utility model relates to the technical field of modified plastic particle sorting, in particular to a modified plastic particle vibration sorting device which comprises a sorting box, the upper surface of the sorting box is communicated with one end of a connecting pipe, a material distributing assembly is arranged in the connecting pipe, and the other end of the connecting pipe is communicated with one end of a discharging pipe. The other end of the discharging pipe communicates with the lower surface of a storage barrel, the upper surface of the storage barrel communicates with one end of a feeding pipe, a vibration motor vibrates to drive a mounting plate and a rubber column to vibrate, the rubber column transmits vibration to three sieve plates, modified plastic particles are sieved through the three sieve plates, and the modified plastic particles are screened through the three sieve plates. And the air cylinder drives the sliding block b and the brush to move rightwards, the brush moves rightwards to clean the modified plastic particles on the upper surface of the screen plate, and the problem that the particle sorting efficiency is obviously reduced along with the increase of blockage of meshes due to the fact that the meshes of a screen of an existing device often clamp some particles is solved.

Aspects of the present disclosure include methods for adjusting a particle classification index in response to one or more saturated data signals based on detected light from particles in a fluid stream. Methods according to certain embodiments include detecting light from particles in a fluid stream, generating a plurality of data signals based on the detected light, identifying one or more saturated data signals, generating a saturation signal index corresponding to the identified saturated data signals, and applying the saturation signal index to a particle classification index to generate an adjusted particle classification index. In some embodiments, the methods include determining one or more parameters of a particle (e.g., for a particle sorting decision) by calculating an adjusted spectral unmixing matrix for fluorescence of the particle that excludes the one or more saturated data signals. Systems and integrated circuit devices (e.g., field programmable gate arrays) for implementing the subject methods are also provided. Non-transitory computer readable storage media are also described.

The invention belongs to the technical field of construction waste sorting and recycling, and particularly discloses a construction waste particle sorting device which comprises a mounting box, one side of the mounting box is fixedly connected with a first discharging shell, and the other side of the mounting box is fixedly connected with a second discharging shell communicating with the first discharging shell. And the top of the mounting box is fixedly connected with a third discharge shell. By arranging the separation mechanism, the three functions of particle size screening, wind power sorting and magnetic separation impurity removal are organically combined in the same device, and the technical problems that traditional sorting equipment is single in function and needs multi-machine linkage are solved; according to the technical scheme, adsorption separation of metal substances, wind separation of light materials and screening classification of aggregates with different particle sizes are sequentially completed, finally, metal materials, light sundries and heavy aggregates are output through three independent discharging channels correspondingly, efficient fine separation of construction waste is achieved, and the purity and the additional value of recycling products are remarkably improved.

This invention provides a tailings particle classification method based on multi-dimensional morphological feature compression and clustering, belonging to the fields of geotechnical engineering, mineral processing, and particle classification technology. The method includes: S1-S6: acquiring an STL file database of tailings particles; S7: calculating and extracting morphological parameters to form an original parameter dataset; S8-S10: obtaining a three-dimensional morphological parameter set retaining the original morphological feature information; S11-S12: determining the optimal number of clusters using the elbow rule, silhouette coefficient, and Gap statistic, and using the K-means algorithm to cluster the three-dimensional morphological parameters into particle morphology groups; S13: using the discrete element method to conduct a stacking test simulation on the clustered particle categories, analyzing the stacking density and average coordination number of different particle categories, and verifying the physical meaning of the classification results. This tailings particle classification method can systematically and efficiently integrate multi-dimensional particle morphological information and directly correlate this information with macroscopic physical and mechanical properties. It is data-driven, has a clear mechanism, and the results are interpretable.

The invention belongs to the related technical field of phase segmentation, and discloses a decoupling type phase segmentation method and system for a composite gel system microstructure, and the method comprises the steps: (1) forming a reusable particle database through particle images corresponding to each kind of target gel particles; (2) taking an artificially marked pure cement paste BSE image as a background image, inserting particles in a reusable particle database into a cement matrix area to obtain a stage 1 model training data set, and training a stage 1 universal segmentation model; (3) training the stage 2 particle classification model by adopting particles in the reusable particle database; (4) inputting the BSE image to be subjected to phase splitting into the stage 1 universal segmentation model to obtain a matrix, a pore and a particle mask; and stage 2, the classification model performs joint classification based on the particle masks and all particles in the BSE image to be subjected to phase splitting so as to obtain the specific phase category of each particle. According to the invention, the universality is improved.

The invention discloses a particle sorting micro-fluidic chip integrated with a piezoelectric actuator and a use method of the particle sorting micro-fluidic chip, and relates to the technical field of micro-fluidic sorting. The device comprises a particle inlet, a jet liquid inlet, two sorting outlets, a sorting area and a piezoelectric actuator. The jet flow cavity is in fluid communication with the sorting area, and a jet flow outlet of the jet flow cavity is located at the highest gravity position, so that gas in the jet flow cavity can be discharged through the jet flow outlet under the action of gravity. According to the invention, the chip is vertically or obliquely placed, so that the jet flow outlet is located at a functional position which is beneficial to natural gathering and discharging of gas under the action of gravity, and bubbles in the cavity are naturally discharged by utilizing the gravity. The jet flow actuating efficiency is improved, the sorting process has higher tolerance to the initial transverse position, the arrival time sequence and the size fluctuation of the particles, and stable and high-purity particle sorting can be achieved without depending on the high-precision pre-alignment condition.

The invention discloses a particle detection device, a particle sorting system, a particle pairing system and a detection module, the particle detection device comprises a first detection module used for forming irradiation first detection light and second detection light, and a detection assembly used for receiving excitation light after the detection light irradiates first particles; the valve control module is used for controlling the first flow channel to be opened or closed; the valve control module controls the first flow channel to be in a closed state after the detection assembly receives the exciting light excited by the first detection light so that the first particles can stop in the imaging area, and the detection assembly receives the exciting light excited by the second detection light and conducts imaging after the first flow channel is in the closed state. Compared with a scheme based on microscope static imaging, the embodiment of the invention has the advantages that the flux can be obviously improved, and compared with a scheme of imaging in flow, the embodiment of the invention can ensure the imaging quality, i.e., the embodiment of the invention can consider both the detection flux and the imaging quality.

The present disclosure generally relates to particle manipulation and separation technologies, and more particularly relates to a method and a system for sorting particles Further, the method may include receiving, by a particle sorting system (100), a quantity of fluid includes particles with motility. Further, the method may include generating, by a rotating magnetic field using coils. Furthermore, the method may include disposing a cuvette. The cuvette may include suspension of the particles in deionized water vertically within the region of the decreasing rotating magnetic field strength, with a highest field strength at the bottom of the cuvette. Further, the method may include applying the rotating magnetic field at a fixed frequency to actuate the particles. Further, method may include maintaining the actuation until the particles reach respective equilibrium positions. Further, the method may include sorting the suspension into samples by extracting portions at heights within the cuvette.

The invention belongs to the technical field of sand making and processing equipment, and particularly relates to an interval particle sorting machine with a rotary scattering disc and a sorting system. The sorting machine comprises a barrel, a material dispersing device, an air ring and a sorting device, wherein the material dispersing device is arranged in the barrel and used for dispersing materials falling on the barrel, the air ring is used for accelerating and stabilizing airflow entering the barrel, and the sorting device is used for sorting fine sand meeting the particle size requirement (within the range of 20-150 meshes). The sorting system comprises a raw material bin, a feeding machine, a bucket elevator, a sorting machine, a grinding machine, a dust remover, a fan and a finished product bin; after the materials are sorted by the sorting machine, fine sand meeting the particle size requirement is collected by the dust remover, the materials which do not meet the particle size requirement enter the grinding machine to be ground and then enter the sorting machine again to be sorted, and sorting, grinding and collecting of all the materials are achieved in a circulating mode. According to the winnowing machine, the winnowing principle is adopted, and high-precision and high-efficiency sorting of particle materials in the interval of 20-150 meshes can be achieved.

This application discloses a two-stage virtual impactor for sorting submicron particles, belonging to the field of aerosol separation. The virtual impactor includes a housing and a first-stage and a second-stage virtual impactor disposed within the housing. Both the first-stage and second-stage virtual impactors are arranged parallel to each other along the length of the housing. A deflection channel is also provided within the housing. One outlet of the first-stage virtual impactor is connected to the inlet of the second-stage virtual impactor through the deflection channel. This virtual impactor, through staged processing, optimizes design parameters for each stage within a specific particle size range, resulting in a more uniform particle group and reducing the probability of non-target impacts on the wall due to mixing. This design systematically reduces particle losses caused by inertial impaction, turbulent entrainment, and other mechanisms, enabling it to better adapt to low-concentration, high-precision particle separation, significantly improving separation efficiency and data reliability.

An object of the present invention is to provide a technique that can form stable droplets. A particle sorting apparatus is provided, which includes a microchip including: a main channel through which a liquid including particles flows; a sheath liquid channel that communicates with the main channel and through which a sheath liquid flows; and a sheath liquid introduction portion that introduces the sheath liquid. The particle sorting apparatus vibrates the sheath liquid flowing through the sheath liquid introduction portion. Further, a particle sorting method is provided, in which, in the method, in a microchip including: at least one main channel through which a liquid including particles flows; a sheath liquid channel that communicates with the main channel and supplies a sheath liquid; and a sheath liquid introduction portion that introduces the sheath liquid, the sheath liquid flowing through the sheath liquid introduction portion is vibrated.

The invention provides abnormal metal powder particle sorting equipment based on multi-modal imaging, which relates to the technical field of metal powder material processing and comprises a feeding system, a vacuum conveying system, a metallographic imaging system, a scanning electron microscope imaging system, a sorting execution system, a collecting system, an equipment control system, a vacuum and environment control system and a vacuum chamber, the vacuum system comprises a vacuum chamber, a conveying belt, a driving device, a vacuum maintaining system and a cleaning device, and an intelligent analysis unit is installed in the middle of the front face of the vacuum chamber. The comprehensive deep analysis of the metal powder from macroscopic to microscopic and from morphology to components is realized, and the recognition precision and coverage rate of the abnormal particles are greatly improved. In order to solve the problems of powder layer and positioning grabbing, a solution of quasi-single-layer powder laying and multi-sensor fusion positioning is provided, and the engineering feasibility is enhanced.

A particle sorting apparatus includes a determination unit that performs sorting determination of a particle, the determination unit performing the determination using rule data that defines relationships between particles in terms of particle populations to which the particles belong and particle populations to which different particles within a predetermined range around the particle belong, the particle population to which the particle that is a target of the sorting determination and the different particle within the predetermined range can belong including (a) a particle population of particles to be sorted, (b) a particle population of particles that are not sorted but are ignorable in the determination, and (c) a particle population of particles that are neither the particles to be sorted nor the ignorable particles, the ignorable particles including red blood cells.

A particle sorter that sorts particles carried by a fluid flow. The particle sorter comprises a particle detection system for detecting particles in a fluid flow, a particle deflection system for selectively deflecting particles from the fluid flow to sort them, an optical imaging system positioned to acquire images of particles in the fluid flow to identify particles at different locations in the fluid flow, an illumination source for selectively illuminating the fluid flow when acquiring images of particles, and an electronic control system. The particle sorter is configured such that, when the particle detection system outputs a signal for a detection event, the electronic control system controls the imaging system and the illumination source to acquire one or more images of particles in the fluid flow within one or more time delays from the detection event, and the electronic control system processes one or more images and the time delays of one or more time delays to determine one or more parameters for the sorting process.

The application relates to a plastic particle sorting method and system, and relates to the field of plastic particle sorting, which comprises the following steps: collecting spectrum information; determining impurity positions from the spectrum information; collecting impurity images based on the impurity positions; determining impurity contours from the impurity images and determining impurity materials from the spectrum information based on the impurity positions; determining an ejection position according to the impurity materials, determining an impurity volume according to the impurity contours; determining an ejection distance by comparing the ejection position and the impurity positions, and determining an impurity weight by combining the impurity volume and the impurity materials; determining a sorting wind force by combining the ejection distance and the impurity weight, and determining a sorting angle according to the impurity positions; and generating and sending impurity sorting instructions in response to the sorting wind force and the sorting angle. The application has the advantages of improving the accuracy of plastic particle sorting and accurately controlling the effect of a nozzle according to the shapes of different particles.

Systems, devices and methods for sorting particles utilizing focus stacking of two-dimensional images are described. Such systems, devices and methods may further provide for particle processing and may encompass, on a microfluidic scale, sample enrichment, sample mixing, sample / particle sorting, verification of sorting and feedback-based optical sorting.

The utility model discloses a nut processing particle sorting device, which belongs to the technical field of nut sorting, and can be used for carrying out auxiliary blocking and scattering treatment on stacked nut piles, avoiding the situation that the whole nut piles are piled up to influence sorting and the like as much as possible, and ensuring that the nut piles can be scattered and unfolded during sorting. And it is guaranteed that nuts of various specifications can be sorted into the corresponding storage boxes in the subsequent sorting work. The nut processing particle sorting device comprises a screening frame, a bottom frame is fixed to the bottom of the screening frame, a sorting cavity is formed in the screening frame, a bearing plate is obliquely arranged in the sorting cavity, a sorting plate is installed on the bearing plate through positioning bolts, sorting holes are formed in the sorting plate, and first fixing blocks are arranged at the middle sections of the two side edges of the bearing plate in a protruding mode; a guide groove allowing the first fixing block to slide is formed in the screening frame, a transmission assembly is installed on the outer side edge of the screening frame, evenly-distributing grooves are symmetrically formed in the inner side edge of the sorting cavity of the screening frame, and evenly-distributing assemblies are installed in the evenly-distributing grooves.

The utility model relates to a kind of broken particle sorting devices for aluminium scrap recycling, including shell and sorting assembly being installed in the inside of shell, the sorting assembly includes magnetic cylinder, distributing plate and screw rod, the fixed plate of two is fixedly installed in the side inner wall of shell, the magnetic cylinder is rotatably installed between two fixed plates, the fixed plate is fixedly installed in the side edge of fixed plate, the outer wall of magnetic cylinder is equipped with multiple annular grooves, the outer wall of distributing plate is penetrated with notch, the notch of distributing plate is fixedly installed with multiple embedded rods, the embedded rod is embedded in annular groove inside, the bottom surface of shell is equipped with discharge chute, the screw rod is rotatably installed above discharge chute, the iron filings adsorbed on magnetic cylinder can be scraped by the notch edge of distributing plate, but due to the existence of magnetic force, iron filings is still adsorbed on distributing plate, magnetic cylinder can always keep surface flat, and constantly quickly adsorb iron filings.

The present application relates to a kind of for lunar soil particle screening Particle Intelligent Recognition Method, comprising the following steps: obtaining the optical signal, image data and surface electric signal of the same lunar soil sample particle, constitute the multimodal feature set of each lunar soil sample particle;The multimodal feature set is standardized;Based on CNN+MLP+splicing fusion module structure, construct multimodal deep learning neural network model;Multimodal deep learning neural network model is supervised learning training, and the trained multimodal deep learning neural network model is obtained;The data after standardization processing are input into the trained multimodal deep learning neural network model, and particle classification is realized.The present application adopts intelligent recognition integrated deep learning model, utilizes intelligent algorithm to carry out the shape distinction, component identification, particle size sorting and other functions of particle, can realize automatic classification, clustering and attribute prediction, without artificial marking one by one, effectively improve work efficiency.

The application relates to a particle sorting device and method, which comprises a microfluidic channel, a bulk acoustic wave device, two first surface acoustic wave resonators located outside the microfluidic channel for generating a standing wave with two nodes in the microfluidic channel, the two nodes being located at the same positions as the acoustic fluid tunnels of the two side edges of the bulk acoustic wave device to enhance the effect of the acoustic fluid tunnels of the two side edges on capturing particles; two second surface acoustic wave resonators located outside the microfluidic channel downstream of the bulk acoustic wave device for generating a standing wave with one node in the microfluidic channel to move part of the particles released at the end of the bulk acoustic wave device to the node position; the particles released at the end of the bulk acoustic wave device and not moved to the node position generated by the two second surface acoustic wave resonators flow to a first sub-channel, and the particles released at the end of the bulk acoustic wave device and moved to the node position generated by the two second surface acoustic wave resonators flow to a second sub-channel. The application can improve the sorting performance of particles.

Provided is an apparatus for efficiently priming a microchip for particle separation. In a microchip for particle sorting, the microchip includes a sample liquid flow path, a sheath liquid flow path that merges with the sample liquid flow path at a merging unit, a merged flow path having the aforementioned merging unit at one end, a particle recovery flow path connected to the merged flow path at the other end of the merged flow path via a connection flow path, a branch flow path connected to the merged flow path at the other end of the merged flow path, and an introduction flow path for introducing a liquid into the connection flow path, and a priming method for the microchip for particle sorting includes: a first priming step of supplying a first liquid from the introduction flow path to the connection flow path, thereby priming the particle recovery flow path with the first liquid; and a second priming step of causing a second liquid to flow from the sheath liquid flow path to the merged flow path, thereby priming the branch flow path with the second liquid.

The utility model discloses a flame-retardant nylon particle sorting device, which relates to the field of nylon particles, and comprises a base, a plurality of groups of cleaning columns are fixed at the top of a fixed plate, a sliding block is connected to the bottom of the fixed plate, a driving rod is arranged at one end of the sliding block, a rotating block is fixed at one end of the driving rod, and a plurality of groups of cleaning columns are fixed at the other end of the rotating block. And rotating columns are installed on the two sides of the rotating block, and the outer wall of the rotating block is sleeved with a moving block. The problem that the efficiency of cleaning nylon particles clamped in screening holes by personnel is low is solved, when the screening holes in a screening plate need to be cleaned, a moving block is pushed towards one side of a moving groove, when the moving block is moved to one side of a rotating groove, a rotating block is rotationally pushed towards the interior of the rotating groove, and the screening holes in the screening plate are cleaned. The rotating block drives the driving rod to rotate synchronously, the driving rod jacks up the fixing plate through the sliding block, the cleaning column is inserted into the screening holes in the screening plate, and therefore the cleaning column pounds out the nylon particles clamped in the screening holes.

Systems and methods for particle sorting are presented including a monitoring system downstream of a particle separator or sorter. The system can utilize the monitoring system to adjust or calibrate operational parameters of the system in real time. When a particle of interest is mis-sorted, the probability is high that the particle of interest has been sorted into a non-targeted sortable unit that was adjacent in sequence to the sortable unit that was expected to include the particle of interest. The monitoring system monitors non-targeted sortable units in the system that were adjacent in sequence to targeted sortable units that are predicted to contain particles of interest. Signals from the monitoring system enable automated adjustment or calibration of operational parameters of the system such as sort delay or purity mask parameters.