23results about How to "Reduce sampling costs" patented technology

The utility model relates to the field of voltage detection, and discloses a sinusoidal voltage detection circuit and a detection system. Comprising a controller, a first voltage division circuit, a second voltage division circuit, an operational amplifier and a biasing circuit, the biasing circuit is connected with the first voltage division circuit or the second voltage division circuit; the controller is connected with the first voltage division circuit and the second voltage division circuit; and the controller is also connected with the output end of the operational amplifier. According to the application, the bias voltage is introduced to only sample the voltage extreme value in each sine period, so that whether the sine function in the period is normal or not is judged by utilizing the characteristics of the sine signal, data in the whole period does not need to be sampled, the sampling efficiency is improved, and the sampling cost is reduced. Furthermore, the controller adjusts the resistance value of each voltage sampling circuit, so that the voltage detection circuit can detect circuits with different output voltages, and the application range is further expanded.

The utility model discloses a sampling device suitable for repeated use of a knapsack drill, which comprises an outer drill pipe, an annular conical drill bit, a semicircular sampling pipe, an upper connecting seat, a lower connecting seat and an anti-falling claw pin mechanism, and the annular conical drill bit is mounted at the lower end of the outer drill pipe in a threaded manner. According to the utility model, the two semicircular stainless steel pipes are utilized and spliced to form the sampling pipe, so that the sampling pipe can be repeatedly used, and the two semicircular sampling pipes can be quickly detached, so that a soil sample can be quickly taken out, the sampling pipe can be conveniently used by a worker, and the situation of waste of the sampling pipe is avoided; meanwhile, waste of the sampling pipe can be avoided through multiple sampling, and the sampling cost is saved.

The invention discloses a semiconductor equipment gas conveying method and system, and relates to the technical field of gas conveying, and the method comprises the following steps: obtaining same-distance purity line groups of all gases conveyed by semiconductor equipment based on a gas pipeline, and setting purity detection points in the gas pipeline based on the same-distance purity line groups, gas conveying is regulated and controlled based on the detection result of the purity detection point; the method is used for solving the problems that in an existing semiconductor equipment gas conveying method, only flow stability or fluid channeling of gas is considered, during actual conveying, the purity of conveyed gas is changed due to the influence of the flow speed of the gas in a gas conveying pipeline, and after stable gas without fluid channeling is introduced into a reaction cavity, the stable gas is not subjected to fluid channeling. And the quality of a semiconductor product is reduced due to non-uniform gas purity.

The present invention belongs to the technical field of coal seam exploration, and discloses a complete coal seam sampling drilling rig, including a mounting frame and a pillar, a movable plate is slidably mounted on the outer surface of the pillar, a motor is mounted on the top of the movable plate, a drill rod is mounted on the output shaft of the motor, and a ball screw is also mounted on the bottom of the mounting frame. The device makes the entity part of the coal seam directly opposite to the sampling slot "enter the sampling slot" through the rotation of the crushing head, and drives the movable gear to rotate through the outer gear ring. The design of the eccentric inner peripheral surface of the movable gear drives the ring cutter to rotate and cut the outer surface of the coal seam to form an outer ring incision. After a circle of cutting of the movable gear, only the middle part of the entity part of the coal seam is retained, and the upward pulling force of the ball screw is used to pull the coal seam upward, so that the middle part that is not cut off is directly broken by the external force, and finally, a relatively complete coal seam sample is formed.

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.

The invention provides a signal sampling system, method and device, sampling test equipment, a medium and a product, the system comprises the sampling test equipment and tested equipment, and the sampling test equipment comprises a controller, a digital-to-analog converter and a comparator; the controller is used for acquiring a target sampling task and determining a trigger signal; the digital-to-analog converter is used for determining triggering times and a level value based on task completion precision of the target sampling task, and feeding back the level value corresponding to the triggering times to the comparator; the tested equipment is used for determining the level of a tested signal based on the trigger signal and feeding back the level of the tested signal to the comparator; the comparator is used for determining a level sampling combination matrix according to all the level values and the level of the tested signal, and feeding back the level sampling combination matrix to the sampling test equipment; the sampling test device is used for determining a signal sampling result based on the level sampling combination matrix. According to the technical scheme, an analog-to-digital converter is replaced by the combination of the digital-to-analog converter and the comparator, so that the sampling cost is reduced.

The invention discloses an automatic sampling mechanism for runoff sediment. The automatic sampling mechanism comprises a supporting device, the sampling assembly is arranged at the top of the supporting device, and a flow monitoring part is arranged in the sampling assembly; the sampling assembly is arranged in the supporting device, is positioned below the sampling assembly and is matched with the sampling assembly; one end of the rotating assembly is connected with the supporting device, the other end of the rotating assembly is connected with the bottom of the sampling assembly, and the rotating assembly is used for driving the sampling assembly to rotate; the control device is electrically connected with the sampling assembly, the flow monitoring part and the rotating assembly; wherein when runoff sediment is sampled, the flow monitoring piece is used for monitoring the flow of the runoff sediment, so that the control device adjusts the state of the sampling assembly. The technical defect that the sampling operation is affected due to the fact that a collection channel is blocked due to the fact that water flow is too large and carried silt is too high is overcome.

The present application relates to a kind of for collecting dead pig inguinal lymph node tissue sampling device, including at least one first distraction unit, first gripping unit, at least one second distraction unit, second gripping unit, first locking unit, operating unit, sampling unit and at least one second locking unit, its advantages are, using first distraction unit, second distraction unit cooperate first gripping unit, second gripping unit, the hind leg of dead pig is opened sufficiently to expose the position of groin, provide stable clear puncture field for lymph node sampling;Sampling unit is rotated in lymph node tissue inside by operating unit, the purity of sample collected is high, and larger volume tissue sample can be collected without multiple puncture;Operating unit is movably connected with second gripping unit, can be supported by the second gripping unit, need not to tightly hold operating unit, only pressurization can be completed puncture, save puncture strength;And only need to replace sampling unit, one person can easily complete sampling to dead pig.

The invention provides a composite material structure impact positioning method and device based on variational mode decomposition, and belongs to the technical field of composite material structure health monitoring, and the method comprises the steps: obtaining a to-be-detected composite material structure, determining the modal parameters of the to-be-detected composite material structure through an experimental modal analysis method, and determining the modal parameters of the to-be-detected composite material structure according to the modal parameters of the to-be-detected composite material structure; establishing a modal shape database based on the modal parameters, acquiring a strain response signal corresponding to an impact force applied by a single FBG sensor to the composite material structure to be measured, performing variational mode decomposition on the strain response signal to obtain a modal response component, performing exponential fitting on the modal response component to obtain a modal constant vector, and performing modal shape analysis on the modal constant vector to obtain a modal shape database; and performing cosine similarity measurement on the modal shape database and the modal constant vector to obtain impact positioning information of the composite material structure. The technical problems of high sampling cost and complex calculation in the prior art are solved.

The invention provides a material taking device and method for drying equipment, and the material taking device comprises a conveying mechanism which is arranged along the axis of a drying roller, and the two sides of the conveying mechanism are respectively provided with a material receiving position located at the center of the inner side of the roller and a material discharging position located at the outer side of the roller; a material guide channel communicated with the nearby area of the inner wall of the roller and the material receiving position is formed in the material guide pipe; the sampling box is configured to move between a material receiving position and a discharging position in the length direction of the conveying mechanism, and when the sampling box is located at the material receiving position, an inlet of the sampling box is in butt joint with an outlet of the material guide pipe. According to the material taking device of the drying equipment, the sampling box can move to the center of the rear top end of the roller for sampling, the sampling box freely enters and exits from the roller, and the sampling box withdraws from the roller after completing material receiving, so that the problem of special requirements on the structure, power supply and space of the sampling device due to rotation of the roller is solved; the sampling action can be completed without other power assistance, so that the energy-saving and environment-friendly effects are achieved.

The present application relates to a sample transport device, and relates to the technical field of transport devices. The transport device includes a sampling component, a transport frame, a moving component, a sample storage component, a motion component, and a lifting component; the moving component is used to drive the transport frame to move; the motion component is used to drive the lifting component to move; the lifting component is used to drive the sampling component to move; the sampling component includes a sampling outer cylinder, a sampling inner cylinder, and a rotating member; the sampling outer cylinder is connected to the lifting member, and the sampling inner cylinder is rotatably connected to the sampling outer cylinder, the sampling outer cylinder has a first feed port, and the sampling inner cylinder has a second feed port. When the sampling component is in a sampling state, the first feed port is connected to the second feed port, and when the sampling component is in a storage state, the first feed port is staggered with the second feed port; the rotating member is used to drive the sampling outer cylinder to rotate; and the sample storage component is used to store samples. The present application has the effect of improving the transportation efficiency of solid waste detection samples.

The utility model provides a water quality sampling bottle self-replacing device, which relates to the technical field of water quality sampling and comprises an unmanned aerial vehicle, a sampling device main body fixed at the bottom of the unmanned aerial vehicle, a sampling bottle body arranged on the inner wall of the sampling device main body, a sampling pump fixed on the surface of the sampling device main body, and a water sampling pipe fixed at one end of the sampling pump, one end of the water inlet pipe is provided with an electromagnetic valve body, the inner wall of the sampling device main body is rotatably connected with a bottom rotating disc, the bottom rotating disc is driven by a driving motor, and the top of the bottom rotating disc is provided with a plurality of sampling bottle bodies. According to the utility model, the plurality of sampling bottle bodies connected with the water inlet pipe through the electromagnetic valve bodies are arranged in the sampling device main body, and the positions of the sampling bottle bodies in the sampling device main body can be changed through rotation of the bottom rotating disc, so that the unmanned aerial vehicle can carry out sampling for multiple times during single flight, continuous water quality sampling is realized, and the sampling efficiency is improved. The sampling cost is reduced, and the sampling application range of the unmanned aerial vehicle is widened.

The present application belongs to the field of sewage treatment, and provides a chemical industry park groundwater pollution tracing method based on geophysical exploration cooperation, which uses geophysical methods to detect target areas in the chemical industry park, and obtains underground electrical parameter data; based on the spatial form characteristics and physical parameter gradient change law of the resistivity anomaly area, a layout scheme of groundwater chemical sampling target points is determined; groundwater samples are collected according to the layout scheme, and chemical detection analysis is performed; the pollutant data obtained by the chemical detection analysis is subjected to spatial position corresponding and correlation analysis with the resistivity three-dimensional model; the pollutant concentration spatial distribution map, the park enterprise layout and the regional hydrogeological conditions are comprehensively considered to identify the pollutant migration path, lock the pollution source and output the pollution tracing result. The method improves the accuracy of pollution tracing.

The utility model relates to the technical field of civil engineering, in particular to an equivalent sampling mechanism for a geotechnical cutting ring, which comprises a positioning seat, the bottom of the positioning seat is fixedly connected with a conical anchor rod, the surface of the conical anchor rod is fixedly connected with a limit ring, the surface of the limit ring is slidably connected with a sleeve, and the sleeve is fixedly connected with the conical anchor rod. A civil cutting ring body is connected to the bottom of the sleeve in a clamped mode, a connecting rod is fixedly connected to the upper surface of the sleeve, a hammering block is fixedly connected to the surface of the connecting rod, and a fixing disc is fixedly connected to the surface of the connecting rod. According to the civil cutting ring, the horizontal height of the conical head entering the soil is lower than the bottom of the civil cutting ring body, the limiting rod can detect whether rock exists in the soil in advance around the civil cutting ring body through the conical head, and when hammering is blocked, the civil cutting ring body is pulled out in time, so that the civil cutting ring body is prevented from being damaged, and the sampling cost is reduced.

This disclosure provides an adaptive interpolation method and electronic device for carbon emission power density at the city block level, relating to the field of data processing technology. The implementation scheme is as follows: Based on the differences in the gradient vectors of building development volume at various sampling points of a first urban plot, the location of a first interpolation sampling point in the sampling network of the first urban plot is determined, where the building development volume of the sampling point is the ratio of the building area to the base area of ​​the sampling point; based on the carbon emission power density of multiple first neighboring sampling points and the slope of the change in carbon emission power density of the multiple first neighboring sampling points, the carbon emission power density of the first interpolation sampling point is determined; based on the location and carbon emission power density of the first interpolation sampling point, interpolation is performed on the sampling network of the first urban plot. Using the scheme of this disclosure, the accuracy of carbon emission data interpolation can be improved, and the sampling cost of carbon emission data can be reduced.

The utility model discloses a hand -control press formula water sample quick collection and storage integration device, including water sample storage bag, the top of water sample storage bag one end is provided with the water inlet pipe, and the water inlet pipe is seted up with the water inlet, the bottom of water sample storage bag is provided with the drain, and the outside of drain is provided with control valve, install the cone -shaped cylinder in the water inlet pipe, and the bottom end of cone -shaped cylinder stretches into water sample storage bag inside, the outside of cone -shaped cylinder is provided with screen, and the bottom of cone -shaped cylinder is provided with sterile filter membrane layer, the top of inside water inlet pipe is installed with check valve, and check valve is located below water inlet, the utility model has the beneficial effects: the utility model can complete the filtration work in the sampling site instantaneously, can greatly shorten the time of sample processing simultaneously, can reduce the risk of microbial change, reduce the operation difficulty, improve the work efficiency, realize water quality analysis in the precision and timely development of sampling point, guarantee the real -time nature and reliability of data.

The invention provides a portable water chlorophyll on-site suction filtration sampling device and method. The sampling device comprises a sampling box body, a water suction pump, a sampling filter cup and an air suction pump, a water storage cavity is formed in the sampling box body, a water sampling pipe is connected to the sampling box body, the sampling filter cup is connected with the water storage cavity, and a filter membrane is adhered to the inner wall of the sampling filter cup. The sampling device has the beneficial effects that the water suction pump of the sampling device can quantitatively pump a water body at a specified depth into the water storage cavity, and the air suction pump can pump out air in the water drainage pipe connected with the lower end of the sampling filter cup, so that water in the water body in the sampling filter cup and the water storage cavity is promoted to penetrate through the filter membrane; the chlorophyll in the water sample is blocked and adsorbed on the filter membrane in the sampling filter cup, so that the volume of the chlorophyll sample in the water body can be greatly reduced, and the field sampling difficulty and sampling cost of the chlorophyll sample in the water body are reduced; and the chlorophyll sample is adsorbed on the filter membrane, so that the chlorophyll sample is convenient to store and transport.

The application discloses a kind of based on sparse time delay's metasurface array signal frequency and direction of arrival estimation method, mainly solve the problem of high cost and low precision in the condition of ultra-wideband signal, frequency and direction of arrival angle simultaneous estimation.It is as follows: the implementation scheme is: constructing metasurface array, and the received signal is space-time coded;The coded signal is time-delayed to meet the nested sequence, and the time delay is increased by Q times of nested time delay, and the output signal of a total of QN times of time delay is obtained after sampling;Frequency solving matrix is obtained according to the output signal, and the eigenvalue is obtained by decomposition, to calculate the frequency of received signal;Direction vector matrix is constructed according to the coded signal, angle solving matrix is obtained using frequency and direction vector matrix, and the eigenvalue is solved by eigenvalue decomposition, to calculate signal direction of arrival angle.The application increases the time delay of undersampling model, improves the precision of simultaneous estimation of signal frequency and direction of arrival angle, and can be used for ultra-wideband signal reconnaissance processing.

The application discloses a rock resonance frequency determination method, device and system, wherein the method comprises the following steps: placing a rock to be tested in a rock resonance frequency determination system, and performing a quality measurement operation on the rock to be tested; in response to the result of the quality measurement operation being that quality information of the rock to be tested is stable, performing a non-contact acoustic wave generation operation on the rock to be tested to obtain quality information of the rock to be tested under the action of different acoustic wave frequencies; when the obtained quality information of the rock to be tested meets a predetermined condition, determining quality change information corresponding to each acoustic wave frequency according to the quality information of the rock to be tested under the action of different acoustic wave frequencies; and determining a resonance frequency of the rock to be tested according to the quality change information corresponding to each acoustic wave frequency. Through the application, the reutilization rate of the rock can be improved, and the overall sampling cost of the sample can be reduced.

The invention provides a sampling frequency interlaced broadband sampling circuit and method and communication equipment, and relates to the technical field of communication equipment, the circuit comprises a first analog-to-digital converter ADC0, a second analog-to-digital converter ADC1, a clock driving circuit clkdrv, a dual multiplexer MUX and a multiplexing logic circuit MUXLogic; the output end of the clock driving circuit clkdrv is connected with the input end of the first analog-to-digital converter ADC0 and the input end of the second analog-to-digital converter ADC1, the output end of the first analog-to-digital converter ADC0 and the output end of the second analog-to-digital converter ADC1 are connected with the first input end and the second input end of the double-channel multiplexer MUX respectively, and the output end of the multiplexing logic circuit MUXLogic is connected with the third input end of the double-channel multiplexer. And the dual multiplexer outputs a digital analog signal covering the complete frequency band of the radio frequency signal. The device sampling cost, power consumption and design difficulty are effectively reduced, and the sampling capability is improved.

The invention relates to the technical field of sampling equipment, in particular to a sampling device and a fast-loading bulk cargo system. The sampling device comprises a crushing unit, a sample intercepting and returning unit, a sample storing unit and a material taking unit, the material taking unit is arranged on a funnel of the fast-loading bulk material system to take materials, the material taking unit is connected with the crushing unit to crush and sort the materials, the sample intercepting and returning unit is connected with the crushing unit to sample the sorted materials, and the sample storing unit is connected with the sampling unit. The sample intercepting and returning unit enables sampled materials to flow back to the fast-loading bulk material system, and the sample storage unit is suitable for receiving the materials sampled by the sampling unit and storing the sampled materials. The sampling device disclosed by the invention is convenient for sampling the fast-loading bulk material system, and the sampling cost is reduced.

The utility model discloses a natural gas wellhead filtering and sampling device which comprises a cylinder body, the lower end of the cylinder body is sealed, the upper end of the cylinder body is provided with an opening, a flange cover is detachably arranged at the upper end of the cylinder body, and an inlet pipe, an output pipe and a sampling pipe are arranged on the side wall of the cylinder body; a filter screen is arranged on the inner side of the cylinder body and divides the cylinder body 1 into a dirt collection chamber and a liquid sample storage chamber, the sampling pipe is communicated with the liquid sample storage chamber, and the dirt collection chamber is adjacent to the inlet pipe; the device can be installed at a wellhead where a gas-liquid separator cannot be installed, liquid sampling is achieved on the premise that gas circulation is not affected, the mode of collecting liquid samples through loss of natural gas is changed, sampling cost is reduced, and meanwhile pollution of hydrogen sulfide natural gas to the environment is avoided.