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27results about How to "Simplify the sampling process" patented technology

Vaginal secretion sampling device

The invention provides a vaginal secretion sampling device. The vaginal secretion sampling device comprises a shell, a sealing assembly and a sampling mechanism, the first end of the shell extends into the vagina to enable the through groove to correspond to the sampling position, then the sealing assembly is adjusted to open the through groove, then the second driving assembly is adjusted to drive the sampling block to extend out of the shell for sampling, at the moment, the spring is pressed, then abutting against the sampling block is cancelled, and the counter-acting force of the spring drives the sampling block to reset. And then the shell is moved to enable the through groove to correspond to another sampling position, then the first driving assembly is adjusted to drive the connecting sleeve to drive the sampling block to rotate to enable another sampling block to correspond to the through groove, at the moment, sampling can be carried out again by repeating the steps, and when the shell moves, the sampled sample is always located in the cavity, so that the sampling efficiency is improved. Sampling samples are effectively prevented from being polluted, repeated sampling can be carried out without repeatedly inserting the device into the vagina, the discomfort of a patient is reduced, the vagina of the patient is prevented from being scratched, and the practicability and the use safety of the device are improved.
Owner:中国人民解放军海军青岛特勤疗养中心

Substrate glass safe sampling device and method

The invention relates to the technical field of substrate glass production, and discloses a substrate glass safe sampling device and method.The substrate glass safe sampling device comprises clamping jaws, a clamping jaw frame, a three-hinge mechanism and a locking handle, the two clamping jaws are fixed to the two ends of the clamping jaw frame respectively, the three-hinge mechanism is arranged in the middle of the clamping jaw frame, and the locking handle is arranged on the clamping jaw frame; the design of the three-hinge mechanism allows the clamping jaw frame to have certain flexibility while keeping certain rigidity, the clamping jaw frame can adapt to substrate glass of different shapes and sizes, the sampling safety is further improved, the sampling success rate is further increased, meanwhile, the three-hinge mechanism is connected with the locking handle, and the clamping jaw frame is convenient to use. By arranging the locking handle, an operator can easily adjust the opening and closing degree of the clamping jaw so as to quickly and accurately clamp the substrate glass, the locking handle can also fix the position of the clamping jaw, once the clamping jaw is locked, the clamping jaw can firmly clamp the substrate glass, and the sampling device has the advantages of high sampling efficiency and high safety, and is suitable for popularization and application. And the injury to sampling personnel is avoided.
Owner:IRICO DISPLAY DEVICES CO LTD

Chemical liquid flow calibration sampling device and electroless plating equipment

ActiveCN224731590UCalculate flow deviationfree from pollution
The utility model relates to the technical field of semiconductor manufacturing, provide a kind of chemical liquid flow calibration sampling device and chemical plating equipment.Chemical liquid flow calibration sampling device includes: liquid injection pipe, sampling tube and passage switching device;The liquid injection pipe is used to transport chemical liquid, and the outlet end of the liquid injection pipe is used to communicate with the inner cavity of chemical tank;The inlet end of the sampling tube is communicated with the liquid injection pipe, and the outlet end of the sampling tube is located outside the chemical tank;The passage switching device is used to switch the flow direction of chemical liquid in the liquid injection pipe, so that chemical liquid flows out along the outlet end of the liquid injection pipe or flows out along the outlet end of the sampling tube.The above-mentioned device can simplify the sampling process of chemical liquid, improve the calculation efficiency of flow deviation, and also reduce the risk of operation and the risk of chemical liquid contamination.
Owner:SEMICON MFG ELECTRONICS (SHAOXING) CORP

Low-temperature section water vapor sampling and flow stabilizing device and system

The invention is suitable for the technical field of water vapor sampling and flow stabilizing devices, and provides a low-temperature section water vapor sampling and flow stabilizing device and system. The raw material pipeline is arranged in the sampling support; the top position of the raw material pipeline is communicated with a feeding pipeline; a first pump body is arranged on the feeding pipeline; the blanking pipeline is communicated with the bottom position of the raw material pipeline; a sampling mechanism is arranged on the side, away from the raw material pipeline, of the discharging pipeline. The cooling mechanism is arranged outside the raw material pipeline; according to the invention, the temperature stability of water vapor before sampling is ensured, so that the sampling accuracy is greatly improved; the balance steady flow valve ensures that the water vapor flow is constant, no matter how the flow in the raw material pipeline fluctuates, the sampling mechanism can receive the stable water vapor flow, and the sampling precision is further improved; meanwhile, due to the design of the branch material pipe, the sampling process is simplified, the interference of sampling on the whole operation of the system is reduced, the working efficiency is improved, and the reliability and the accuracy of sampling are ensured.
Owner:QINGTONGXIA ALUMINUM IND POWER GENERATION CO LTD

Detection cup holder, detection device and detection method of liquid in cup

The invention discloses a detection cup holder, a detection device and a detection method for liquid in a cup. The detection cup holder comprises a frame body, and at least a micro-cup slot for placing a micro-cup and a test tube slot for placing a test tube are provided on the frame body. The opening direction of the micro-cup slot and the opening direction of the test tube slot are in the same direction. The height difference between the bottom wall of the micro-cup slot and the bottom wall of the test tube slot in the vertical direction is a preset distance. In the direction from the bottom wall of the micro-cup slot to the opening of the micro-cup slot, the bottom wall of the micro-cup slot is located above the bottom wall of the test tube slot, so that when the sample is in the micro-cup, it is easier to detect the change of capacitance, thereby improving the detection accuracy of the micro sample. When the stroke of the sampling needle is a fixed value, the detection and extraction of the sample liquid in the micro-cup and the test tube are completed, which simplifies the detection and sampling process of the sample liquid. Moreover, the sampling needle will not contact the bottom wall of the micro-cup slot and the test tube slot, and will not cause damage to the sampling needle.
Owner:SHENZHEN DYMIND BIOTECH

A portable shallow sampling device for hydrogeological information mapping services

The present application relates to the technical field of geographic surveying and mapping equipment, and discloses a portable shallow sampling device for hydrogeological information surveying and mapping services, which comprises a shell, a plurality of collection bottles arranged in an annular array at the bottom of the shell, and a sampling mechanism arranged in the shell; the sampling mechanism comprises a handle arranged at the top of the shell, a vertical rod arranged on the inner wall of the handle, a tension spring sleeved at the top of the vertical rod, the top and bottom of the tension spring being fixedly connected with the handle and the vertical rod respectively, a latch arranged on the inner wall of the top of the shell, an ejection spring arranged on the side of the latch away from the vertical rod, a driving wheel arranged at the bottom of the vertical rod, a pawl arranged on the side of the bottom of the vertical rod close to the driving wheel, a spring piece arranged in the middle of the pawl, the two ends of the spring piece being fixedly connected with the pawl and the vertical rod respectively, a ratchet wheel arranged on the side of the driving wheel close to the pawl, and a bottle plug arranged on the inner wall of the collection bottle. Through the arrangement of the sampling mechanism, rapid switching of multipoint sampling is realized, and the collection amount of the water body can be observed intuitively.
Owner:SHANDONG PROVINCIAL COAL GEOLOGICAL PLANNING EXPLORATION & RES INST

Incremental photovoltaic power generation prediction method, device, equipment, storage medium and product

The invention discloses an incremental photovoltaic power generation prediction method, device and equipment, a storage medium and a product. The method comprises the following steps: acquiring newly added sequence data of photovoltaic power generation in real time; screening out a target sequence subset from the old sequence data based on a first distribution difference with the existing old sequence data and a second distribution difference with the newly added sequence data; generating a target training sample according to the target sequence subset and the newly added sequence data, and training a current original prediction model according to the target training sample to update and obtain an incremental prediction model; and predicting the future photovoltaic power generation power according to the incremental prediction model. According to the method and the system, dependency on task boundaries is avoided, so that time sequence prediction characteristics of photovoltaic power generation are met, the method and the system can adapt to continuously changing data environments, the sampling process of previous data is simplified, representativeness of sampling samples and generalization of a sampling method are improved, computing resources are saved, and prediction accuracy and timeliness are improved.
Owner:GUANGDONG LAB OF ARTIFICIAL INTELLIGENCE & DIGITAL ECONOMY (SZ) +1

A paper packaging biodegradation detection device

The utility model relates to packaging degradation detection technical field, especially paper packaging biodegradation detection device, including connecting frame and sampling assembly, sampling assembly includes baffle, limit slot, leakage groove, spring, bottom frame, collection frame, handle, fixed block, rotating plate, knob and press plate, the inside slide coupling of connecting frame has the baffle, the rightmost limit slot is established in the top of baffle, the leakage groove is established in the top left and right sides of baffle, the inside left side of connecting frame is connected with a plurality of springs in equal interval, the utility model discloses setting sampling assembly, makes rotating knob and disconnects limit slot, and the baffle is limited, and then press plate is pressed and makes baffle slide in connecting frame, makes leakage groove and recess groove align, and soil is automatically fallen into collection frame, after unfastening press plate, baffle resets under the action of spring, and blocks the falling channel, and pulls out collection frame and completes sampling, and the design is simple and efficient, and it is convenient for fast access representative soil sample, and the detection accuracy and practicality are improved.
Owner:YUNNAN XIANGHENG PACKAGING CO LTD

Soil gas sampling device for geological mineral exploration

The utility model relates to the technical field of gas sampling devices, in particular to a soil gas sampling device for geological mineral exploration, which comprises an operating handle, a control device, a sampling component and a gas collecting component, the lower end of the operating handle is fixedly connected with the control device, and the inner side of the lower end of the control device is fixedly connected with a driving component. The bottom end of the control equipment is fixedly connected with a sampling assembly, the outer side of the driving assembly is mounted on the outer side of the gas collecting assembly, the driving assembly comprises a limiting telescopic rod, the bottom end of the limiting telescopic rod is fixedly connected with a built-in cylinder, the outer side of the built-in cylinder is fixedly connected with a first rubber sealing ring, and the top end of the built-in cylinder is fixedly connected with a threaded rod; according to the device disclosed by the utility model, a collection mechanism is innovated, vacuumizing is not needed, the sampling process is simplified, the cost is reduced, background gas pollution is avoided, and the detection accuracy and reliability are improved.
Owner:LIAONING NONFERROUS GEOLOGY TEAM 107 CO LTD

Liquid microorganism sampler

ActiveCN222362099Ueliminate dissolved oxygenSolve the activity problem of long-distance transportationBioreactor/fermenter combinationsBiological substance pretreatmentsMicroorganismProcess engineering
The utility model relates to the technical field of microorganism sampling, in particular to a liquid microorganism sampler which comprises a sampling bottle, an external thread is arranged on the outer side of the end part of the sampling bottle, a sealing cover is in threaded connection with the outer side of the external thread, and the liquid microorganism sampler further comprises a sampling mechanism arranged in the sealing cover, the sampling device is used for guiding collected samples into a sampling bottle. By means of the integrated design, sampling can be rapidly completed, the sample exposure time is shortened, the sampling process is very convenient, meanwhile, the situation that liquid microorganisms are splashed or overflowed when being guided into the sampling bottle can be effectively avoided, and the using effect is better.
Owner:BEIJING HENGTAIKANG PHARM TECH CO LTD

Movable drilling and sampling equipment for open pit coal mine

The invention discloses movable drilling and sampling equipment for an open-pit coal mine, relates to the technical field of mine geology, and aims to solve the technical problems of low sample purity and low sampling efficiency of existing drilling and sampling equipment for the open-pit coal mine. A longitudinal moving mechanism is arranged at the front end of a hydraulic platform, a supporting frame is arranged on the longitudinal moving mechanism, a vertical calibration table is arranged on the supporting frame, a drilling and sampling mechanism is hoisted on the longitudinal moving mechanism, and the drilling and sampling mechanism is driven by the longitudinal moving mechanism to drill into a coal mine layer. The mode adjusting mechanism is arranged on the vertical calibration table to adjust the specific use state of the drilling and sampling mechanism, the three functions of drilling, sampling and waste layer removal are integrated, the requirement for equipment replacement in the operation process is reduced, intermediate links are reduced, the sampling operation efficiency is improved, and the purity of coal mine samples is improved.
Owner:INFORMATION RES INST OF EMERGENCY MANAGEMENT DEPT

Soil sample preservation method and device

The invention belongs to the technical field of soil sample preservation, relates to a soil sample preservation method and device, and aims to provide an efficient, reliable and environment-friendly soil sample long-term preservation solution. The method comprises the following steps: preheating a sample container, adding a soil sample, quickly sealing, cooling and storing, keeping out of light in the whole process, and forming 0.7-0.9 atm negative pressure; the device comprises an outer bottle, an inner bottle, a bottle cap, a high-temperature box and a low-temperature box. By accurately controlling the temperature and the negative pressure, the sample storage efficiency and reliability are improved, meanwhile, the environmental pollution and the operation risk are reduced, and the stability and the analysis accuracy of the soil sample are ensured. The method and the device are easy to operate, dependence on professional skills is reduced, material waste and equipment maintenance cost are reduced, and good economical efficiency and practicability are achieved.
Owner:INST OF AGRI RESOURCES & ENVIRONMENT SICHUAN ACAD OF AGRI SCI

A molten iron sampling device for a blast furnace tapping station

ActiveCN224399029UOptimize design featuresFunction is easy to implementWithdrawing sample devicesElectric machineryDrive motor
This utility model discloses a molten iron sampling device for a blast furnace ladle station, belonging to the technical field of metallurgical automation equipment. It includes a base, a column, a horizontal beam frame, a traveling trolley, a vertical sampling frame, a sampling drive motor, a floating frame, a sampler, and a temperature sensor. The column is installed on the base, the horizontal beam frame is installed on the column and extends horizontally, the traveling trolley is installed on the horizontal beam frame and moves horizontally along the beam frame, the vertical sampling frame is installed on the traveling trolley, the sampling drive motor is installed on the traveling trolley and drives the vertical sampling frame to move vertically, the floating frame is installed on the vertical sampling frame, and the sampler and temperature sensor are installed on the floating frame. The vertical sampling frame is equipped with a position sensor. This molten iron sampling device for a blast furnace ladle station has multiple advantages, including high degree of automation, good sample representativeness, high success rate, time saving, reduced labor intensity, and improved operational safety, significantly improving the efficiency and quality of the molten iron sampling process.
Owner:TIANJIN TIANGANG UNITED SPECIAL STEEL CO LTD

A virus inspection apparatus for logistics

ActiveCN121540467BRealize automatic compressionImplement rotational samplingWithdrawing sample devicesCold chainVirologic response
The application belongs to the technical field of cold chain detection sampling, and specifically discloses a virus detection equipment for logistics, which comprises a shell, a baffle is slidably connected to the surface of the shell, an inner wall of the shell is fixedly connected with a placing plate, the bottom of the placing plate is fixedly connected with a partition plate, a collecting area is formed between one side of the partition plate and the shell, and a discharge port in communication with the collecting area is formed in the surface of the shell; through the synergistic effect of the first electric push rod, the rotating disc, the second electric push rod and the driving assembly, automatic compression, frost scraping, rotary sampling and continuous sample discharge are realized. The whole process has high automation degree, and the operator only needs to place and take out samples, thereby getting rid of the tedious manual wiping operation, and the virus detection equipment is especially suitable for rapid screening of a large quantity of cold chain goods, remarkably improves work efficiency, can automatically scrape off the frost on the surface of the sample before sampling, and avoids the problem that the virus is diluted by the frost layer and is difficult to detect in the process of sampling by a swab.
Owner:SICHUAN LIANXIN LOGISTICS CO LTD

A deep sampling device for coal mine geological survey

InactiveCN122171261AEffectively isolate early intrusionavoid cross mixingDrilling rodsWithdrawing sample devicesAnalysis dataLocking mechanism
This invention discloses a deep sampling device for coal mine geological exploration, belonging to the field of geological exploration technology. It includes a base and a column, with a lifting platform slidably connected to the column. A sampling rod is detachably connected to the lower end of a drill rod, and a hollow drill bit is detachably connected to the lower end of the sampling rod. A sample storage tube is detachably connected inside the sampling rod. A sealing element is slidably connected to the lower part of the sample storage tube within the hollow drill bit. A sealing and locking mechanism is provided at the upper part of the sample storage tube. Water is placed inside the sample storage tube between the sealing and locking mechanism and the sealing element. A squeezing and unlocking mechanism is provided between the water and the drill rod. A triggering mechanism is connected to a lifting and driving mechanism, and a fixing mechanism is provided on the lifting platform. This invention achieves the purpose of sampling at a specified depth. Simultaneously, during non-sampling stages, the sealing element seals the lower end of the hollow drill bit, effectively preventing the premature intrusion of non-target layer soil and rock samples, avoiding cross-mixing and dilution contamination of samples from different depths, and improving the fidelity of in-situ samples and the reliability of subsequent analytical data.
Owner:SHANXI PROVINCE 139 COALFIELD GEOLOGY & HYDROGEOLOGY CO LTD +1

Water source sampling device with stratified sampling function

The invention provides a water source sampling device with a stratified sampling function, and relates to the technical field of water source sampling devices.The water source sampling device is characterized in that a water inlet groove is formed in the circumferential side wall of a sampling cup in a penetrating mode, an arc-shaped sealing plate capable of sliding straightly is installed on the water inlet groove, and a rubber pad matched with the arc-shaped sealing plate in shape is fixed to the inner side of the arc-shaped sealing plate in an adhering mode; a vertical driving shaft is rotatably mounted in the space of the periphery of the row of sampling cups, the tail ends of the row of connecting pieces are in sliding connection with the vertical driving shaft, a protruding key strip is integrally formed on the vertical driving shaft, and the upper end and the lower end of the key strip extend to the upper end and the lower end of the vertical driving shaft; and the vertical driving shaft is in transmission with a row of connecting pieces through a key bar. The row of connecting rods, the connecting pieces and the vertical driving shaft are jointly connected to form a mechanism for synchronously driving the row of arc-shaped sealing plates to be opened and closed, compared with the prior art, the trouble that the row of arc-shaped sealing plates need to be opened and closed step by step in sequence during sampling is omitted through the mechanism, and operation and use are convenient and fast.
Owner:HUATING COAL GRP CO LTD

Multi-range gynecological cell sampler and sample box

The utility model discloses a multi-range gynecological cell sampler and a sample box, and belongs to the field of cervix sampling. The bottom plate is arranged at the head end of the holding rod; the insertion rod is arranged on the bottom plate; two inserting shafts are arranged on the outer wall of the top end of the inserting rod; the side sampling piece and the upper sampling piece are detachably arranged on the insertion rod respectively; the upper sampling piece comprises an upper brush head which is crown-shaped, two wings of the upper brush head protrude towards two sides, and bristles in the middle of the upper brush head are longer than the two wings. According to the multi-range gynecological cell sampler and the sample box, through the arrangement of the side sampling piece and the upper brush head, the cervical orifice, the fornix beside the cervical orifice and the vagina can be sampled at the same time, and compared with the prior art, the material consumption is reduced, the sampling process is greatly simplified, and the sampling efficiency is improved. Meanwhile, as the two wings of the upper brush head protrude towards the two sides and the middle bristles are longer than the two wings, the two protruding wings can reduce the contact probability of the middle bristles (cervical orifice samples) and the vagina wall, and therefore the positive rate of certain TCT can be increased.
Owner:BEIJING OBSTETRICS & GYNECOLOGY HOSPITAL CAPITAL MEDICAL UNIV

Sampling device for bridge concrete detection

ActiveCN119618721AFast sampling speedSimplify the sampling processWithdrawing sample devicesArchitectural engineeringStructural engineering
The invention relates to the technical field of concrete detection, and discloses a sampling device for bridge concrete detection, the sampling device comprises a supporting seat, a driving part and a sampling barrel, the supporting seat is provided with two stand columns, the sampling device also comprises a carrier plate horizontally arranged between the two stand columns, and the carrier plate is in sliding connection with the two stand columns; the driving part is arranged on the carrier plate; the sampling barrel is rotationally connected to the bottom end of the carrier plate; each clamping piece comprises a push rod and an arc-shaped clamping plate, the push rod is arranged on the arc-shaped clamping plate, the push rod is slidably connected to the sampling barrel, and a first elastic piece is arranged on the push rod; the arc-shaped clamping plate is positioned in the sampling barrel; the lantern ring is arranged between the two stand columns on the supporting base, and the top face of the lantern ring is provided with an inclined face. The sampling barrel penetrates through an inner hole of the lantern ring; the rotary cutting ring is connected with the sampling barrel through a second elastic piece; according to the sampling device for bridge concrete detection, when a concrete sample block with a large diameter is sampled, the concrete sample block can be directly and completely taken out along with the sampling barrel, a special clamping tool does not need to be adopted, and the operation is simple.
Owner:商洛市公路局 +1

A classification sampling tool and method suitable for low visibility environments on the sea floor

The application relates to a classification sampling tool and method suitable for a low-visibility seabed environment, which comprises a sampler for collecting samples, the structure of the sampler comprising a sampling cylinder, one end of the sampling cylinder being closed by a sealing plate, and a matching rod being connected to the sealing plate; a sample barrel provided with a barrel body for containing the collecting sampler; a cover capable of moving along the axial direction of the sample barrel and controllably closing the barrel body; a limiting structure arranged on the sample barrel and capable of controllably limiting the axial movement of the cover on the sample barrel; and a matching hole corresponding to the matching rod being arranged on the cover. Through the above operation, in-situ classification sampling in a low-visibility environment can be completed, the sound and light pollution of the sampling process to the seabed environment is effectively reduced, the cross contamination between different types of sampling samples is effectively reduced, the classification sampling of samples with different requirements for sample treatment is facilitated, the structure is simple, the sampling operation process is simplified, intelligent sampling operation is facilitated, and the application has strong practicability.
Owner:CHINA SHIP SCIENTIFIC RESEARCH CENTER +1

Sampling device for environment detection

The invention discloses a sampling device for environment detection, and belongs to the technical field of water body sample collection. Comprising a sampling unit and an auxiliary unit, water flow around the device is disordered due to simultaneous swinging of four groups of swinging frames, deposited impurities and microorganisms at the bottom of a water body are comprehensively disturbed, and the limitation that sampling is only limited to a surface water body is avoided, so that the sampling range is more uniform, and the representativeness of a collected sample is ensured; the whole device can roil a water body in an area with a small water flow velocity, impurities and microorganisms deposited at the bottom of the water body for a long time are filled in a collection range of the water body under stirring, and the roiled water flow enables the impurities and microorganisms deposited at the bottom to be effectively suspended into the water body, so that a water sample in the sampling range is more comprehensive, and the sampling efficiency is improved. And the real condition of the underlying ecological environment can be reflected. The design is particularly suitable for still water or slow flow areas with low flow speed, and the problem that bottom sediments are difficult to obtain by a traditional sampling device under the condition of low flow speed is solved.
Owner:SHANXI PROVINCIAL SCI & TECH RESOURCES & LARGE INSTR OPEN SHARING CENT +1

Virtual direct current motor control method and device, computer equipment, readable storage medium and program product

PendingCN119401320ASimplify the control problemSimplify the sampling processOverhead installationElectric generator controlMathematical modelSimulation
The invention relates to a novel virtual direct current motor control method and device, computer equipment, a computer readable storage medium and a computer program product. The method comprises the following steps: constructing a mathematical model of a virtual direct current motor; analyzing the mathematical model of the virtual direct current motor, introducing virtual inertia, and determining a novel virtual direct current motor; and controlling the line based on the novel virtual direct current motor. By adopting the method, a control structure with an inverse droop characteristic and an output voltage compensator can be obtained, stable operation of the device is ensured, and meanwhile, indifference control of the output voltage and certain inertia support can be realized.
Owner:QUJING BUREAU OF SUPERVOLTAGE POWER TRANSMISSION CHINA SOUTHERN POWER GRID

Sampling equipment for greenhouse gas monitoring

The utility model relates to the technical field of gas detection equipment, in particular to sampling equipment for greenhouse gas monitoring, which comprises a movable base, a hydraulic support rod is fixedly connected to the upper surface of the movable base, a mounting plate is fixedly connected to the upper surface of the hydraulic support rod, and a sampling mechanism is arranged on the mounting plate; the sampling mechanism comprises a sampling box, sampling grooves are formed in the front surface of the sampling box in a linear array shape, sampling cylinders are fixedly connected to the inner surfaces of the sampling grooves, electromagnetic valves are fixedly connected to the inner surfaces of the sampling cylinders, pistons are hydraulically connected to the inner surfaces of the sampling cylinders, and hydraulic rods are fixedly connected to the rear surfaces of the pistons; through the arrangement of the sampling box, the piston, the hydraulic rod, the connecting plate and the first threaded rod, when gas needs to be collected, the motor is started to drive the connecting plate to move backwards, operation can be achieved, operation is convenient, and sampling is simple.
Owner:JIANGSU ENVIRONMENTAL PROTECTION GRP YANCHENG CO LTD

Inductor current sharing method and device of module parallel current source type converter

PendingCN119298683ASimplify the sampling processEasy to judgeAc-dc conversion without reversalInductorTotal current
The invention provides an inductor current sharing method and device for a module parallel current source type converter, and belongs to the technical field of power supply control. 2N + 1 multi-level modulation waves, a quadrature axis modulation ratio and a direct axis modulation ratio in the module parallel current source type converter are obtained; according to a given quadrature-axis modulation ratio and a given direct-axis modulation ratio, determining a sector of a given current and a switching state distributed to each module in the module parallel current source type converter; determining a total current modulation wave and a current sector corresponding to the current modulation wave according to the switching vector of the switching state; the number of switching states of each module is calculated, distribution of switching vectors of N modules is obtained after a calculation sector is given through the number of the switching states, and currents corresponding to the switching vectors are distributed to the N modules; and voltage and current of the switching vector in each module are sorted, and combined distribution is performed according to the sorting of the voltage and the current, so that current sharing of 2N inductors of the positive and negative electrodes of the direct current is realized in any modulation mode.
Owner:XIDIAN POWER RECTIFIER XIAN +1

Whole section soil column field collection frame and sampling set

The utility model discloses a whole section soil column field collection frame and sampling set which comprises a whole section profile modification frame and a whole section profile cutting tool, the whole section profile modification frame is a cuboid, and the whole section profile modification frame comprises an upper steel plate, a right steel plate, a lower steel plate and a left steel plate which are connected in sequence; an inner cavity formed by the section of section shaping frame is matched with an inner cavity of the wooden specimen box; a plurality of steel cross braces are arranged between the left steel plate and the right steel plate in parallel; the upper steel plate, the lower steel plate, the left steel plate, the right steel plate and the steel cross braces are edged inwards, and the outer sides are covered by steel; the whole section cutting tool comprises a handle, a steel main body, a steel pedal and a cutting tool bit, the handle, the steel pedal and the cutting tool bit are sequentially installed on the steel body in the length direction of the steel body, and the cutting tool bit is edged. According to the utility model, the soil column can be completely and integrally cut, and the injury risk of operators adopting various complicated tools such as cutters, dogs and chain saws is reduced.
Owner:INST OF SOIL SCI CHINESE ACAD OF SCI

Batten part layout base material selection method and system

The invention provides a method for selecting batten part stock layout base metal, which comprises the following steps: matching batten parts with base metal according to material and thickness, selecting stock layout lengths to perform stock layout on the batten parts, and performing arrangement according to stock layout line lengths to obtain a corresponding stock layout width under each stock layout length. According to the stock layout method, the utilization of materials is optimized, the stock layout process is simplified, the adjustment time in the stock layout process is shortened through ordered arrangement of the batten parts, and the generation efficiency is improved. The length and the width of the base metal are determined according to the arrangement, and selection of the base metal is determined according to the material utilization rate. And iterating the layout length to obtain the optimal base material size. According to the selection method, it can be guaranteed that the layout of the parts on the base metal is economical and efficient, and material waste can be reduced.
Owner:JIANGNAN SHIPYARD (GRP) CO LTD

A method, storage medium, device and system for sampling key data of a point-reading machine

The present invention discloses a sampling method, storage medium, device and system for the key data of a point-reading machine, which relates to the field of touch detection technology, and solves the technical problems that the existing collection of touch data of a point-reading machine is complicated in actual use, and the touch data obtained by sampling is not accurate enough. The method includes: when the point-reading machine enters the data debugging mode, if an interrupt wake-up instruction sent by the touch chip of the point-reading machine is received, the instant touch data in each data register is called: the instant touch data is converted into an audio signal and output to the speaker of the point-reading machine, so that the speaker of the point-reading machine plays the instant touch data in the form of audio. The present invention does not need to disassemble the machine to add other equipment, and can ensure the accuracy of the sampling data while reducing costs.
Owner:SHENZHEN BETTERLIFE ELECTRONICS SCI & TECH

Environment-friendly sampling box for water body

The utility model discloses and provides a water environment-friendly sampling box which comprises a sampling box main body, a water tank is arranged in the sampling box main body, one end of the water tank is connected with a water pump, the other end of the water pump is connected with a connecting pipe, a top cover is arranged at the top end of the sampling box main body, and a plurality of groups of connecting rods are fixedly arranged at the bottom end of the top cover. One end of each connecting rod is provided with a water quality sensor, a temperature sensor and a PH sensor, and the water quality sensors, the temperature sensors and the PH sensors are respectively arranged on the connecting rods, so that the sampling box can monitor key parameters such as water quality, temperature and acid-base property of a water body in real time; the multi-sensor configuration is beneficial to providing comprehensive and accurate water quality information, and provides high-quality data for environment monitoring and water quality research.
Owner:NINGXIA YANCHIZHENXING WATER CONSERVANCY DEV ENG C