120results about How to "Fast sampling" patented technology

The invention discloses a terahertz single imaging method and system based on a metasurface structure, and the method comprises the steps: placing the metasurface structure above or in front of an imaging object, the metasurface structure comprises a pixel array composed of a plurality of pixel units, and the pixel units and imaging units of the imaging object are in one-to-one correspondence and have consistent parameters; enabling a terahertz light beam to vertically penetrate through the metasurface structure and the imaging object, and respectively obtaining a metasurface terahertz radio-frequency transmission domain spectrum and an imaging object terahertz radio-frequency transmission domain spectrum; and constructing a resonance intensity detection limit model so as to reconstruct pixel distribution of the imaging object and realize terahertz single imaging of the imaging object. According to the invention, an adaptive correction algorithm and an external complex modulation decoding device are not needed, the image of the measured object is reconstructed by using the resonant frequency, the imaging time is reduced, the sampling speed is improved, and the problems of slow sampling speed, low compatibility and incapability of real-time imaging of a terahertz single imaging technology in the prior art are solved.

The invention discloses an energy storage unit area protection control system and method based on GOOSE communication and differential protection, and aims at different faults of an AC side bus fault, a line fault, a transformer fault, a PCS AC side and the like of an energy storage unit. Multi-section stepped protection of the alternating current side of the energy storage unit is formed by configuring busbar differential protection, unit differential protection, longitudinal differential protection, quick-break overcurrent, frequency, voltage and temperature protection, SV sampling, GOOSE tripping and communication locking are adopted between the protection device and a PCS inverter, and quick removal, timely isolation and shutdown during various inter-phase short circuits, overload faults and PCS body faults are achieved.

The utility model discloses marine sediment zircon ore rapid detection equipment, relates to marine sediment detection technical field, including the bottom plate, on the bottom plate is fixedly connected with two vertical plate, the two vertical plate front and back symmetry sets up, and between the two vertical plate is movably connected with a line roller, the vertical plate on the front side is fixedly connected with a first motor, and the vertical plate on the back side is fixedly connected with a second motor. An output shaft of the first motor is fixedly connected with a wire roller, a rope is wound on the wire roller, and the tail end of the rope is fixedly connected with a sampling mechanism, the sampling mechanism is used for rapidly sampling marine sediments, and spectral analysis is carried out on the sediments through the box body, the collecting tank and the spectrograph, so that rapid detection of zircon ore in the sediments is realized; the structure is simple and the operation is convenient.

The utility model relates to the technical field of water quality sampling equipment, and discloses hydrogeological survey water quality sampling equipment, which comprises a sampling tank, a water quality sampling device and a water quality sampling device, the piston is in sliding connection with the middle of the inner side wall of the tank body, the piston can do reciprocating motion in the axis direction of the tank body, a first through hole and a first cover plate are distributed on the piston, and when the piston moves close to or away from the filtering assembly, the first through hole is opened or closed by the first cover plate. According to the utility model, the process that detection water quickly passes through the filtering assembly and then is collected into the tank body can be realized, and the process of quickly sampling the exploration water quality is realized, so that the water taking efficiency is improved.

The invention discloses a method for rapidly characterizing the rate capability of a carbon negative electrode, and belongs to the technical field of analysis and detection. The method comprises the following steps: carrying out peak-splitting fitting on a first-order Raman spectrum of a carbon negative electrode material to obtain defect structure information; a fast charging standard curve is established by adopting the area ratio (ID4 / IG) of a defect peak (D4 peak) to an ideal graphite peak (G peak) and the rate capability of the carbon negative electrode, and the fast charging standard curve is used as a basis for detecting the unknown rate capability of the carbon negative electrode. According to the method, the standard curve is established on the basis of statistical data, the hard carbon diffusion coefficient is rechecked and verified, the detection result is more accurate, and the problems that an existing method for evaluating the carbon negative electrode material of the fast-charging type alkali metal ion (lithium / sodium / potassium) battery is long in evaluation period and complex in operation process are solved.

The invention relates to the technical field of gas detection, and discloses a gas detection method and device for an infrared gas analyzer, and the method comprises the steps: obtaining the light cutting frequency of a light cutting device, capturing a photoelectric signal according to the light cutting frequency, determining a square wave signal, and if the square wave signal triggers an interrupt signal, judging a sampling mark of the infrared gas analyzer, if the sampling mark is true, a capacitance detector is called in a preset sampling period to convert the light quantity difference between the measuring gas chamber and the reference gas chamber into an electric signal; the sampling mark is changed to be false, the interrupt signal is eliminated, the electric signal is subjected to fast Fourier transform algorithm calculation to obtain a target signal amplitude value, the target gas concentration of the detected gas is obtained through the target signal amplitude value and a preset corresponding relation, and the preset corresponding relation represents the corresponding relation between the signal amplitude value and the gas concentration; the gas detection method for the infrared gas analyzer, which is more practical and more accurate, is provided by the method.

The present invention relates to the field of sampling technology, and discloses a ginger root sampling device for root disease research, comprising a base and a mounting platform arranged above the base, a limiting plate 1 is fixed on a side of the mounting platform away from the base, a limiting plate 2 sliding on the mounting platform is arranged on one side of the limiting plate 1, the limiting plate 1 is provided with an opening, a cutting blade is arranged on the side of the limiting plate 1 close to the limiting plate 2, a clamp for fixing the ginger root is arranged on the mounting platform, and a sampling assembly is arranged on the base. The present invention can quickly sample the ginger root, is easy to use, has high safety performance, can adaptively regulate the sampling device, can sample different positions of the ginger root, thereby facilitating the planting personnel to study the diseases of the ginger root, and has high working performance.

The present invention provides a muscle cell culture tissue sampling device, which belongs to the field of cell culture technology. The technical solution is: comprising a sampling tube, a cutting mechanism and a sampling mechanism arranged on the sampling tube. The beneficial effects of the present invention are: simple structure, easy to use, capable of rapid sampling, and ensuring that the sample will not be contaminated to a great extent, thereby improving the efficiency and quality of scientific research.

This utility model relates to the field of wastewater sampling devices, and more particularly to a wastewater sampling device for environmental monitoring, comprising a U-shaped frame and a wastewater detector fixed to the upper end of the U-shaped frame; a first groove is provided through the upper end of the U-shaped frame, and a clamping mechanism is provided at the lower end of the U-shaped frame. This utility model involves placing a movable plate below the U-shaped frame, activating the clamping mechanism to clamp and fix the movable plate, activating the winding mechanism on the upright block to lower the sampling cylinder, and activating the stirring mechanism to stir the dirt at the bottom of the water. The stirred mixture then enters the interior of the sampling cylinder through the inlet groove for temporary storage, and the threaded cylinder is easily removed from the winding mechanism for convenient rapid wastewater sampling. The sampled liquid is placed in the wastewater detector, which can then be activated to test the wastewater. This solves the problem that when sampling wastewater inside a sewage well, it is difficult to disturb the dirt at the bottom of the water body before sampling, making rapid wastewater sampling and testing inconvenient.

The utility model provides a ruminant living body muscle adipose tissue minimally invasive sampling device, which relates to the technical field of animal tissue sampling, and comprises an outer sleeve and an inner cutting rod, one end of the outer sleeve is provided with a needle, the other end of the outer sleeve is provided with a handle, and the outer sleeve is provided with a sampling groove close to the needle; the inner cutting rod is movably arranged in the outer sleeve, and a sampling knife is correspondingly arranged at the sampling groove. The animal sampling device has the advantages of being high in sampling efficiency, capable of reducing animal injuries, convenient, easy and fast to operate and low in cost.

The invention belongs to the technical field of compaction method foundation treatment, and particularly relates to a compaction method foundation treatment inter-pile soil sampling device which comprises a cylinder, a conical cylinder, a positioning cylinder, a sampling cylinder and a cutter, a plurality of guide holes are evenly distributed in the circumference of the cylinder, and the positioning cylinder is slidably arranged in the guide holes; a sampling barrel is arranged on the inner wall of the positioning barrel in a sliding manner; a plurality of guide blocks are evenly distributed on the circumference of the conical cylinder, sliding grooves are formed in the guide blocks, and the cutters are arranged in the sliding grooves in a sliding mode. The bottom sides of the cutters are in one-to-one correspondence with the sampling barrels; a plurality of positioning barrels extend out of the cylinder and abut against the inner wall of the exploratory well, a tip slope is arranged at one end of the sampling barrel, and after the sampling barrel is inserted into the inner wall of the exploratory well, the cutter is obliquely and downwards inserted into the soil body and coincides with the tip slope, so that a soil sample in the sampling barrel is cut off from the rear soil body. According to the device, the sampling device can be positioned and fixed, sampling and sample breaking can be rapidly carried out, samples can be conveniently taken out, and the sampling efficiency in an exploratory well is greatly improved.

The utility model discloses a sampling device for food quality detection belongs to food detection technical field, and its technical scheme main points include sampling cylinder, the top of sampling cylinder is provided with the top cover, the bottom of top cover is provided with cutting mechanism, the bottom of sampling cylinder is provided with the bottom cover, the bottom of sampling cylinder is provided with support mechanism, the cutting mechanism includes pressing block, spring, sliding rod and cutting cylinder, the bottom of pressing block is fixedly connected with the top of sliding rod, the sliding rod slidingly inserts inside the top cover, the surface of spring is movably sleeved in the sliding rod, the top of spring is in contact with the bottom of pressing block, the bottom of spring is in contact with the top of top cover, the structure of the food sampling of existing part is solved, especially when the quality of vegetable food is detected, it is more inconvenient, still needs manual cutting sampling with blade, and the efficiency is lower, and the problem that sample pollution is easily caused is solved.

The invention relates to the technical field of soil sampling, and discloses a mining area soil rapid sampler based on coal mining safety monitoring, which comprises a soil sampling tube, a rotating tube arranged on the top of the soil sampling tube, handles arranged on the two sides of the rotating tube, and a soil sampling unit arranged in the soil sampling tube, the soil sampling unit comprises a communicating component arranged at the top of the soil sampling pipe and a soil sampling component arranged at the bottom of the communicating component; the soil sampling part is used for pushing the soil sampling pipe to rotate to sample soil in the downward pressing process of the rotating pipe, and the communicating part is used for communicating the soil sampling pipe with external air in the soil sampling process of the soil sampling part, so that soil can enter the soil sampling pipe conveniently. According to the soil sampling device, the soil sampling pipe can be continuously pushed to rotate in one direction through the arranged soil sampling component, rotary soil sampling of the soil sampling pipe can be achieved without repeatedly rotating the rotating pipe, the labor intensity of soil sampling personnel is reduced, and the soil sampling efficiency is improved.

This utility model discloses a portable soil and rock sampler for exploration, including a sampling cylinder, a push plate, and a stepping mechanism. The push plate is slidably connected inside the sampling cylinder via the pushing mechanism, enabling the soil and rock inside the sampling cylinder to be pushed out. The stepping mechanism is set on the sampling cylinder for the operator to press the sampling cylinder down into the soil and rock. The pushing mechanism includes a push rod and a support assembly. The push rod is fixedly connected to the top of the push plate, and the support assembly is set on the push rod for supporting the push plate. This portable soil and rock sampler allows the operator to step down on the sampling cylinder to insert it into the soil and rock during soil and rock sampling. When the sampling cylinder is pulled out, the operator presses down on the push rod to drive the push plate to push the soil and rock out of the sampling cylinder, thereby achieving rapid soil and rock sampling. No positioning pins are required during use, which saves time and effort and improves the convenience of the sampler.

The utility model relates to the technical field of coal powder sampling, disclose a flat -end coal powder sampling gun powder leakage prevention device, include: elastic sealing body and protective cover, elastic sealing body is equipped with first through -hole for sampling gun to pass through, its aperture corresponds with the outside diameter of sampling gun, makes elastic sealing body when being equipped with in sampling gun pipe outside, can be pasted with sampling gun, protective cover is horn -shaped, has the first opening of sampling mouth direction and the second opening of far from sampling mouth, first opening is greater than the second opening, elastic sealing body is detachably arranged in the protective cover, the axis line extension line of first through -hole is through first opening and second opening, when sampling, sampling gun is through first through -hole, through holding the protective cover and push to sampling mouth to extrude elastic sealing body, make its block the gap between sampling mouth and sampling gun. The device has good universality and sealing property, through extruding elastic sealing body makes it and sampling mouth close adhesion, effectively prevent coal powder leakage.

The utility model discloses a culture bottle for indoor soil culture, and relates to the technical field of soil sample culture. A 150 cylindrical brown glass wide-mouth bottle is selected as the culture bottle, the brown glass can prevent light pollution, the culture effect and quality can be further guaranteed, the cylindrical culture bottle can be arranged in the culture box in the maximum volume mode, the bottom of each silicone tube extends into the bottom of the culture bottle, and therefore the culture effect and quality are improved. Through the arrangement, gas in the culture bottle can be fully exchanged; by arranging the three-way valve, the installation stability of the silica gel tube can be guaranteed, nitrogen blowing can be carried out on the interior of the silica gel tube to guarantee the CO2 background value of a culture bottle, repeated uncovering is not needed, sample pollution is avoided, and continuous sampling measurement of a soil sample culture experiment is facilitated; the purpose of rapid sampling can be achieved through the injector, and the cultivation effect and quality are guaranteed.

The invention relates to the technical field of drilling soil sampler equipment, and discloses a drilling beam section type open cutting ring soil sampler device which comprises a supporting seat, and the supporting seat is vertically mounted on the ground; the well pipe is installed on the ground and located in the middle area of the supporting base; the soil sampling mechanism is arranged in the middle of the supporting seat; the shielding mechanism is arranged at the top end of the well casing and can block falling soil at the top end of the well casing; the synchronizing mechanism is arranged on one side of the supporting seat and is used for connecting the soil taking mechanism and the shielding mechanism to guarantee the operation linkage of the soil taking mechanism and the shielding mechanism. The driving equipment is matched with the sampling mechanism, so that soil in the well casing can be quickly sampled, the sampled soil can be quickly released under the matching of internal components of the sampling mechanism, the operation is simple, unnecessary operation is reduced, and the sampling efficiency is improved.

The invention provides a rapid detection method for high-altitude chemical clouds, which comprises the following steps: sampling by using a small unmanned aerial vehicle carrying a solid-phase microextraction device, taking back a sample, and detecting by using a surface acoustic wave gas chromatograph. According to the method, rapid detection is carried out through GC-SAW, the separation analysis time of a sample is shorter than 20 s, and the complete analysis time of a single sample is shorter than or equal to 90 s. According to the design of the technical scheme, the particularity and requirements of application scenes are considered, the surface acoustic wave gas chromatograph is fully optimized, the sampling and detection speed is high, multiple substance types can be recognized, and the selected SPME extraction head has hydrophobicity and does not enrich water molecules; the plant smoke is mainly particulate matters and cannot be enriched by the SPME extraction head, so that the influence of water vapor and the plant smoke can be avoided, the single SPME can be selected to be less than 40g, and the requirement on low load of the unmanned aerial vehicle is met. A large number of experiments prove that the target component can be normally detected.

The invention belongs to the technical field of analog signal collection, and discloses a flight control computer telemetering analog quantity collecting and editing circuit which comprises an input signal conditioning circuit, an analog switch circuit, a voltage following circuit, an ADC sampling circuit, an FPGA master control module circuit and a PCM sending circuit. And after passing through the two voltage following circuits, the signal is output to the two analog-to-digital converters for time-sharing ping-pong alternate sampling, and then the signal is output to the FPGA main control module circuit by adopting a serial interface, and is output in an RS485 signal form after being isolated by a digital isolator. The invention has the advantages of bipolar and wide input range, avoids the measurement error caused by signal amplitude scaling, reduces the measurement error caused by the output impedance of a pre-stage circuit to the ADC sampling hold circuit, improves the sampling precision and the sampling speed, and also reduces the I / O resource occupancy rate of an FPGA (Field Programmable Gate Array).

The utility model discloses a spandex waste stock solution recycling device, and relates to the technical field related to spandex production. The device comprises a recovery cavity, a dissolver, driving motors and a sampling assembly, the dissolver is arranged on one side of the recovery cavity, the driving motors are fixed in the centers of the top ends of the recovery cavity and the dissolver, a movable sleeve is fixed on one side of the driving motor on the top of the recovery cavity, and the sampling assembly is movably connected in the movable sleeve. The sampling assembly comprises a sampling tube and a hollow rubber head, the top end of the sampling tube is fixedly communicated with the hollow rubber head, and the sampling tube is inserted into the top end of the recovery cavity. By arranging the recycling cavity, the dissolver, the driving motor and the sampling assembly, the problems that waste liquid in spandex production is not recycled, material waste is easily caused, and sampling is not convenient enough when the state of the waste liquid is determined are solved, and the device has the advantages that the waste liquid in spandex production can be well recycled, the material waste is reduced, and sampling is more convenient when the state of the waste liquid is determined.

The present application relates to sampling detection technical field, specifically, a kind of sampling device of particulate matter, including vertical cuboid cylinder and the discharge valve of being located in cuboid cylinder lower end opening;Rectangular discharge hole that is communicated with cuboid cylinder interior is opened in the front side outer wall of cuboid cylinder, further include the feed valve for closing cuboid cylinder upper end opening and with rectangular discharge hole each other cooperation;Feed valve includes fixed semicylinder that is transversely fixed in the rear side inner wall of cuboid cylinder and dynamic semicylinder that is transversely and rotatably connected in rectangular discharge hole and is parallel to fixed semicylinder and is arranged;The radius of fixed semicylinder and the radius of dynamic semicylinder each other cooperation, when the lower edge of dynamic semicylinder and the arc surface outer wall of fixed semicylinder tangent, the plane outer wall of dynamic semicylinder is set up and is inclined distribution with low front high up;The present application simplifies the operation process to reach the effect of time-saving and labor-saving, to improve work efficiency and greatly facilitate use.

The application provides a high-voltage cross double sampling circuit, an analog-to-digital converter and a battery management system, wherein the high-voltage cross double sampling circuit comprises a switched capacitor module, an enable control module and a capacitor initial setting module; after the switched capacitor module is turned on, the high-voltage signal and the low-voltage signal are cross double sampled through switch switching; the enable control module is connected with the switched capacitor module and is used for turning on the switched capacitor module when an enable signal is valid; and the capacitor initial setting module is connected with the switched capacitor module and is used for setting the initial state of each capacitor in the switched capacitor module when the enable signal is invalid. The application solves the problem of low battery voltage detection speed of the existing high-voltage sampling circuit.

The utility model relates to the technical field of strain activation, rejuvenation and screening equipment, in particular to a strain activation, rejuvenation and screening device, and aims to solve the technical problems that when the strain activation, rejuvenation and screening device is used, strains are sampled, transferred and transferred, cultured and activated generally through a plurality of isolation bins, and the strains are not easy to separate during transfer. According to the technical scheme, the strain activating, rejuvenating and screening device comprises a screening device body, a moving assembly, a sampling assembly, a limiting assembly, a sealing assembly, a cleaning assembly, a discharging assembly, a storage bin, a cleaning bin and a culture bin. Compared with a traditional strain activating, rejuvenating and screening device, the bottom end of the sampling head may be contaminated with soil in the extraction culture dish, the culture result is affected, and the strain activating, rejuvenating and screening device can effectively prevent the soil at the sampling position from being contaminated with the culture position, and the culture result is affected.

The present invention is directed to the field of throat swabs, and specifically relates to an unattended automatic sampling device for throat swabs. The sampling and transporting mechanism drives the conveyor belt body to transport along the length direction of the conveyor belt body, and the conveyor belt body is isolated and pre-installed with multiple throat swab sampling bodies along the length direction; the sampling mechanism, the sampling mechanism includes a sampling table with a sampling port, and the sampling and transporting mechanism drives the conveyor belt body to pass the throat swab sampling bodies through the sampling port in sequence. The beneficial effect of the present invention is that compared with the prior art, the present invention can automatically, gently, quickly and accurately complete the sampling task of pharyngeal tissue in a pollution-free, fully isolated, identifiable, standardized and modular manner for the sampled samples through human-machine collaboration, thereby improving the sampling accuracy and the comfort of the sampled personnel.

The utility model discloses a new pollutant biological toxicology analysis and examination processing device relates to biological toxicology examination technical field, and this new pollutant biological toxicology analysis and examination processing device, including organism, is symmetrically installed with multiple groups of slideway at the both sides inner wall of organism, and each group slideway is assembled with the slide that can slide, and is fixed with the matched circular platform on the slide, and the center position of each circular platform is provided with a rotatable rotating lever, and the bottom of rotating lever is connected with the turntable, and the turntable is annularly distributed with a plurality of container grooves, and the top of rotating lever is assembled with sealing assembly, is used for the sealed processing of the sample container that is placed in the container groove. The utility model discloses through setting up the slide that can slide, rotating turntable and corresponding sealing door, has realized the convenient placement, taking out and positioning of sample container, has promoted the operation efficiency, security and the stability of experimental environment.

The utility model discloses a waste residue screening device, which belongs to the technical field of waste residue detection, and comprises a main body frame, one side of the main body frame is fixedly connected with a manual shovel, the other side of the main body frame is fixedly connected with a shell, the lower end of the shell is fixedly connected with a motor, and the output end of the motor is fixedly connected with a connecting disc. The upper end of the connecting disc is fixedly connected with a shaft column I, the outer circumferential surface of the shaft column I is rotatably connected with a connecting rod, one side of the shell is fixedly connected with a grab handle, and the lower end of the main body frame is fixedly connected with a funnel. And if redundant waste residues exist on the screen after sampling is completed, the waste residues can be directly poured out, then screening and sampling are continuously conducted on the next point position, personnel operation is very convenient, and the working efficiency can be greatly improved.

The application provides an animal tissue sampling device and belongs to the technical field of cell culture. The technical scheme is as follows: a base and a sampling mechanism arranged on the base, the base is provided with an operation sleeve through a pair of inverted L-shaped supporting rods, the sampling mechanism is movably arranged in the operation sleeve, the sampling mechanism comprises a fixing frame movably arranged in the operation sleeve, the fixing frame is provided with an outer sampling sleeve, the fixing frame comprises a U-shaped handle, the U-shaped handle is respectively provided with a first fixing cylinder and a second fixing cylinder at both ends, and the outer sampling sleeve is arranged between the first fixing cylinder and the second fixing cylinder. The application has the advantages of simple structure, convenient use, fast sampling, great guarantee of sample pollution, and improved efficiency and quality of scientific research.

A double-end sampling swab with an inner sleeve layer and an outer sleeve layer comprises a handle and a sampling swab head at the front end, the sampling swab head is made of a water absorbing material, the handle is of a double-layer structure and comprises an inner core handle and an outer sleeve layer, the front end of the core handle is a main sampling swab head, and the front end of the sleeve layer is an auxiliary sampling swab head. The auxiliary sampling swab head is of an annular structure and is attached to the rear portion of the main sampling swab head, two samples can be obtained through one-time sampling of the sampling swab, the trouble of an operator and a sampled person is reduced, and the sampling speed is increased.

The present invention discloses a point cloud classification and segmentation method based on fast sampling and attention mechanism, comprising the steps of: loading a point cloud classification data set D c And point cloud segmentation dataset D s ; Construct a point cloud classification and segmentation network based on the PointNet++ network, and construct a downsampling layer to replace its original sampling layer, and construct a segmentation network based on the attention mechanism N St Replace the original segmentation network, in N St Improve the interpolation operation in , and add a self-attention encoder in the skip connection; use D c and D s The point cloud classification and segmentation network is trained to obtain a point cloud classification and segmentation model, which is used in the classification or segmentation tasks of point cloud data. The present invention can reduce the complexity of the downsampling process, focus on and extract the space and related information in the point cloud, and overcome the problem of inaccurate interpolation caused by the selected neighborhood size and point distribution during interpolation. Therefore, the present invention can improve sampling efficiency, feature extraction accuracy and segmentation accuracy.