168results about "Material analysis by observing immersed bodies" patented technology

The invention provides a method and a system for evaluating the biological health condition of cultivated land soil based on exploratory factor analysis, and relates to the technical field of evaluation of the biological health condition of soil. The precise analysis of the complex interaction relationship between the soil microorganism function and the environmental factor is realized; through multi-dimensional index fusion and deep mining of a factor model, key biological function factors are effectively discriminated and quantified, and the scientific evaluation capability of soil ecological functions is improved; in combination with causal path analysis, the scheme can reveal the influence of environmental pressure on a microbial regulation and control mechanism, and intelligent attribution and traceability of abnormal health conditions are realized; based on dynamic fusion and grading judgment of function and environment scores, the scheme supports accurate health condition evaluation and hierarchical intervention, the early warning capability and decision scientificity of soil management are enhanced, and the agricultural sustainable development guarantee level is remarkably improved.

Provided is a downhole tool and a well system. The downhole tool, in one aspect, includes a tubular providing one or more production fluid flow paths for a production fluid. The downhole tool, according to this aspect, further includes one or more float chambers located within the tubular, and two or more floats located within the one or more float chambers. In one aspect, a first of the two or more floats has a first density (ρ1) between a density of gas (ρg) and a density of oil (ρo), and a second of the two or more floats has a second density (ρ2) between the density of oil (ρo) and a density of water (ρw). The downhole tool, according to this aspect, further includes two or more non-contact proximity sensors configured to sense a radial location of the two or more floats to determine a gas:oil ratio and oil:water ratio.

The utility model discloses a suspension type viscosity and density on-line measuring device. The device comprises a cavity, a rotating part, a reference rotor, a suspension rotor, a torsional elastic piece and a distance measuring sensor, the rotating part is fixedly connected to the cavity; the reference rotor is fixedly connected to the outer wall of the rotating shaft, synchronously moves along with the rotating shaft and is higher than the liquid level of measured liquid; a suspension detection end is arranged at the upper end of a suspension body of the suspension rotor, the suspension body is connected with the rotating shaft through a torsion elastic piece, the suspension body suspends in detected liquid, the suspension detection end is exposed out of the detected liquid, and the suspension rotor is driven by the rotating shaft to rotate; the distance measuring sensor fixed in the cavity measures the rotating speed of the reference rotor, the axial displacement of the suspension detection end and the phase difference between the reference rotor and the suspension rotor so as to calculate the viscosity and density of the liquid to be measured. The device has the effects of measuring the density and the viscosity of liquid in real time and being high in measurement precision.

The invention relates to the technical field of rock mechanics and intelligent detection, in particular to a rock strength and failure mode prediction method and system. The method comprises the following steps: acquiring data of a rock sample to be detected to obtain a multi-source feature set; constructing a feature coefficient prediction model, and inputting the multi-source feature set into the feature coefficient prediction model to obtain a feature coefficient; screening the multi-source feature set based on the feature coefficient to obtain an optimal feature subset; constructing a rock strength and failure mode prediction model, and optimizing hyper-parameters of the rock strength and failure mode prediction model by adopting an automatic hyper-parameter optimization framework; and inputting the optimal feature subset into the optimized rock strength and failure mode prediction model to obtain a rock strength prediction value and a failure mode. The problem that rock strength and failure mode prediction precision is not accurate enough and cannot be predicted at the same time in the prior art is solved, and the prediction precision is greatly improved through multi-source data collaborative prediction.

A system and method of determining a density of a drilling fluid in a wellbore. The system includes a drill string in the wellbore, the drill string including a downhole rotor. A drilling fluid flowin

A meter electronics (20) for detecting an orientation and compensating a measurement based on the detected orientation is provided. The meter electronics (20) comprises an interface (401) configured to communicatively couple to a sensor assembly (10) and a processing system (402). The processing system (402) is configured to detect an orientation of the sensor assembly (10) based on one or more sensor signals provided by the sensor assembly (10).

According to the portable in-situ slurry specific gravity detection system and the using method thereof, a lower mechanical structure of the detection system can directly measure slurry of a fixed volume at a time, secondary canning is not needed, and personal errors caused by multiple times of operation are avoided. And meanwhile, the mud in the middle and lower parts of the mixing tank can be measured, so that the result is representative. The upper electronic structure not only can calculate the current specific gravity of the mud, but also can calculate the amount of clean water or dry mud or wet mud which is still required for reaching the target specific gravity of the mud under the condition that parameters (the specific gravity of the dry mud and the moisture content of the wet mud) are fully given, so that the mud preparation time is greatly shortened.

The utility model discloses a device for measuring the volume weight of wheat seeds by using a drainage method, which comprises a barrel body and further comprises a water soaking component, a water outlet component and a water outlet component, the water soaking assembly comprises a sliding frame, a sliding rod and clamping plates, the sliding frame is slidably connected to the can body, the sliding rod is slidably connected with the sliding frame, and the clamping plates are symmetrically and slidably connected to the two sides of the sliding rod; the wheat seed volume weight measuring device can effectively reduce wheat seed volume weight measuring errors.

The utility model discloses an integrated measuring instrument for melt viscosity and density. The measuring instrument comprises a vacuum chamber, an oscillation device, a density measuring assembly and a viscosity measuring assembly, wherein the density measuring assembly and the viscosity measuring assembly are arranged in the vacuum chamber; the oscillating device comprises a suspension fiber, a connecting rod and a driving element; two ends of the suspension fiber are respectively connected with the driving element and the density measuring assembly; one end of the connecting rod is hinged with the density measuring assembly, the other end of the connecting rod is fixed with the viscosity measuring assembly, and the density measuring assembly and the viscosity measuring assembly are respectively driven by the suspension wire and the connecting rod to do periodic torsional vibration motion. The density measurement assembly and the viscosity measurement assembly are connected into a whole by arranging the oscillation device, the density of the melt is calculated according to the density measurement assembly, and the viscosity of the melt is calculated according to motion data of the viscosity measurement assembly of the melt. Therefore, the viscosity and density of the melt can be measured at the same time through one device, and the cost and time for measuring the viscosity of the melt are reduced.

The utility model discloses a concrete resistance tester, which relates to the technical field of concrete detection equipment and comprises a workbench, a stand column arranged on the workbench, a supporting arm arranged at the top of the stand column and a concrete resistance tester body arranged on the supporting arm, and a cleaning component is arranged below the supporting arm. The cleaning assembly comprises a support arranged on the stand column, a supporting rod arranged on the support and a driving box arranged on the supporting rod, an outer gear ring is rotationally arranged in the driving box, an annular brush is arranged on the inner wall of the outer gear ring, a connecting shaft is rotationally arranged in the driving box, and a gear meshed with the outer gear ring is arranged on the connecting shaft; according to the concrete resistance tester, rotation of the annular brush is achieved by impacting the baffle through water, stubborn concrete on the concrete resistance tester body is cleaned, the phenomenon that concrete remains on the concrete resistance tester body is avoided, it is further guaranteed that the concrete is cleaned up, and the service life of the concrete resistance tester is prolonged. And later use of the concrete resistance tester body is facilitated.

Measuring probe (4) for determining the density of liquids (3), comprising: 1.1. a probe base body (5) with a liquid inlet opening (8), 1.2. a float (6) arranged in the probe base body (5), 1.3. a drive unit (11) for generating a drive force on the float (6), 1.4. at least one float detection device (12, 13) for determining the float position and 1.5. at least one control unit which is in signal communication with the drive unit (11) and / or the float detection unit (12, 13) and is designed to calculate the liquid density.

The utility model provides a high-temperature melt density measuring device which comprises a base, a high-temperature furnace mounted above the base, a sample bearing assembly, a first lifting sliding table mounted on the base, a furnace door connected to the first lifting sliding table, and a second lifting sliding table connected to the second lifting sliding table and capable of driving the furnace door to move up and down so as to enable the furnace door to be separated from or abut against the lower part of the high-temperature furnace; the lower end of the sample bearing assembly is supported on the furnace door and can move upwards to be separated from the furnace door; the upper clamp is connected to the lower end of the sample bearing assembly; the lower clamp is butted with the upper clamp; the second lifting sliding table enables the lower clamp and the upper clamp to achieve up-down butt joint and further drives the sample bearing assembly to move upwards to be separated from the furnace door or enables the lower clamp to be separated from the upper clamp; the force sensor is arranged below the lower clamp, and the first industrial camera is arranged on one side of the high-temperature furnace and is used for recording the liquid level height change of the molten sample. The device can be used for detecting the density values of various melts in a molten state at different high temperatures on line.

The application provides a cultivated soil biological health condition evaluation method and system based on exploratory factor analysis, relates to the soil biological health condition evaluation technical field, and realizes accurate analysis on the complex interaction relationship between soil microbial functions and environmental factors by constructing a soil biological health evaluation system based on a nitrogen biological regulation coordination network; through multidimensional index fusion and deep mining of a factor model, key biological function factors are effectively identified and quantified, and the scientific evaluation ability of soil ecological functions is improved; combined with causal path analysis, the scheme can reveal the influence of environmental pressure on microbial regulation mechanism, realize intelligent attribution and tracing of abnormal health conditions, based on dynamic fusion and hierarchical determination of function and environment scores, the scheme supports accurate health condition evaluation and layered intervention, enhances the early warning ability and decision-making scientificity of soil management, and significantly improves the guarantee level of agricultural sustainable development.

The present invention describes a fluidic device for measuring at least one of corpuscle mass density and weight. The fluidic device comprises a sedimentation chamber fluidly connected to an inlet channel configured to be immersed in a liquid. The fluidic device further comprises a pumping system connected to the sedimentation chamber. The pumping system is adapted to control the flow of liquid in the sedimentation chamber. A processor of the fluidic device is configured to obtain corpuscle data related to a corpuscle in at least one region of the sedimentation chamber; and calculate at least one of corpuscle mass density and weight based on the data received.

A concentration measuring apparatus of the present invention includes: an acquiring unit that acquires a height position of a float which floats in a liquid and whose floating height changes in accordance with a concentration of the liquid, the height position being measured using a radio wave; and a measuring unit that measures the concentration of the liquid based on the height position.

Fluid property sensors described herein may include a resonator configured to be immersed in a fluid or flowable medium and a vibrator coupled to the resonator, such that vibrations of the vibrator are transmitted to the resonator, e.g., to discourage and / or remove any buildup or deposits on the resonator and / or increase accuracy of the sensors. The frequency of the vibrator is configured to be substantially lower than the frequency of the resonator, such that operation of the resonator is not negatively affected. The vibrator may be located internal to, or external to, a chassis of the device.

The application relates to an artificial intelligence technology and discloses a ceramic product performance detection method, which comprises the following steps: measuring the first weight of a ceramic product, measuring the drainage volume of the ceramic product after being immersed in a water pool to calculate the density of the ceramic product, measuring the second weight of the ceramic product after being immersed in the water pool, calculating the water absorption performance according to the first weight and the drainage volume, calculating the wear resistance of the ceramic product by measuring the weight of the ceramic product after being polished, testing the compressive strength of the ceramic product by using a pressure loading device to obtain the maximum compressive strength, and judging whether the ceramic product meets preset performance indexes according to the measured density, water absorption performance, wear resistance and maximum compressive strength. The application further discloses a ceramic product performance detection system. The application can improve the efficiency of ceramic product performance detection and make the detection more comprehensive.

The utility model relates to the technical field of density measurement of objects, and particularly provides a laser sensing type high-precision irregular solid density measuring instrument, which comprises a container part (1), a laser sensing part (2) and a laser sensing part (3), the second container can be communicated with the first container; (2) a floating portion comprising: a float portion capable of floating in the liquid contained in the first container; the floating container can be located in the liquid contained in the second container in a floating mode, a containing space is formed in the floating container, and an object to be measured can be placed in the containing space; and (3) a distance detection part which can detect the state change of the floater part in the first container. With such a configuration, the density of an object to be measured having an irregular shape can be determined on the basis of a change in the liquid level (the height of the float portion changes with the change in the liquid level) on the basis of the device.

The utility model relates to the technical field of density detection of engineering boards, in particular to a density detection device for a constructional engineering board. Comprising a vertical frame, the bottom surface of the vertical frame is fixedly connected with a double-layer water storage barrel, the lower end of the surface of the double-layer water storage barrel is provided with a water outlet pipe, the top of the vertical frame is provided with a clamping piece, the middle of the vertical frame is fixedly connected with a mounting piece, and the other end of the mounting piece is fixedly connected with a movable rod of a hollow structure; a drying assembly used for drying the surface of the engineering board is movably connected into the engineering board, and scraping assemblies used for scraping and cleaning the surface of the engineering board are installed at the upper end and the lower end of the drying assembly correspondingly. Water on the surface of an engineering board can be scraped into the double-layer water storage barrel through the scraping assembly, water loss is reduced, the density detection accuracy is improved, then the surface of the engineering board is dried in time through the drying assembly, and the situation that the engineering board is damaged due to soaking is reduced.

The utility model relates to engineering test technical field, concretely is a kind of asphalt mixture slab test piece density testing device, including water injection tank, the front and back side wall of water injection tank is equipped with observation port, and observation port is provided with transparent plate;The outer surface of front side transparent plate is equipped with outside scale rule;The inside of rear side transparent plate is equipped with the inside water level ruler of vertical extension;Inside water level ruler is equipped with vertical sliding rail side, and the sliding block of vertical sliding is configured on sliding rail;Sliding block is connected with the suspension piece that can float on water surface, and suspension piece one end is equipped with the pointer of inside water level ruler direction.This utility model's beneficial effect lies in by the transparent plate (observation port) of being set up in front and back, allow direct observation water level change, avoid the cumbersome operation of traditional overflow collection;It is simultaneously provided with double scale rule of inside and outside to provide double reference, reduce visual error, and suspension piece is driven pointer along with water level rise and fall, directly indicate water level height on inside water level ruler, greatly simplify reading process and reduce artificial error.

The present technology relates to a battery cell jig including a spacer laminate, a battery cell volume measuring apparatus including the battery cell jig, and a battery cell volume measuring method performed by using the apparatus. It is possible to easily adjust a space between first and second plates where a battery cell has been interposed therebetween by including a spacer which can be assembled in the spacer laminate. Further, it is possible to preventing stagnation of water at a space between the battery cell jig and the spacer when measuring the volume change of the battery cell by including a slit unit opened along a longitudinal direction in the spacer.

The invention relates to a specific gravity measuring instrument suitable for volatile liquids, which includes: a measuring cylinder; a first end cover and a second end cover, which are respectively covered at both ends of the measuring cylinder; a sheath, which is inserted in the first end cover, and the sheath can selectively allow its top or bottom to be fixed in the first end cover, and a receiving cavity is arranged in the middle of the sheath; a fixed block, which is screwed to the top of the sheath through a thread and can move up and down; a specific gravity meter, the top of which can be stuck in the fixed block; when the top of the sheath is fixed in the first end cover and the specific gravity meter is inserted in the receiving cavity and its top is stuck in the fixed block, the fixed block is at the low point of the moving stroke, and when the fixed block moves upward from the low point, the specific gravity meter will not move under the restriction of the receiving cavity, and the fixed block will be separated from the specific gravity meter. In the present invention, the specific gravity meter is placed in the measuring cylinder in advance, so when measuring the specific gravity value, it is not necessary to open the end cover to put in the specific gravity meter, so the situation that the liquid evaporates and affects the personnel and the environment can be avoided.

Fluid property sensors described herein may include a resonator configured to be immersed in a fluid or flowable medium and a vibrator coupled to the resonator, such that vibrations of the vibrator are transmitted to the resonator, e.g., to discourage and / or remove any buildup or deposits on the resonator and / or increase accuracy of the sensors. The frequency of the vibrator is configured to be substantially lower than the frequency of the resonator, such that operation of the resonator is not negatively affected. The vibrator may be located internal to, or external to, a chassis of the device.

The utility model discloses an underground diaphragm wall mud specific gravity automatic detection device, and belongs to the technical field of mud detection.The underground diaphragm wall mud specific gravity automatic detection device comprises a display module and a detection module, and the detection module comprises a detection mounting rod and a mud specific gravity sensor; the mud specific gravity sensor is mounted on the detection mounting rod and used for detecting the specific gravity of mud in the mud pit, the display module comprises a display screen arranged at the top of the mud pit, and the display screen is electrically connected with the mud specific gravity sensor and used for displaying data detected by the mud specific gravity sensor. The mud pit has the advantages that detected data in the mud pit can be conveniently and visually observed, and then the proportion of mud in the mud pit can be rapidly adjusted in time.

The present invention relates to a method for determining the amount of gas (21) located in a battery cell (1) of a battery pack, wherein the battery cell (1) of the battery pack has an initial volume and the method has at least the following steps: a) immersing the battery cell (1) in a non-conductive liquid (3) having a defined density at a first ambient pressure (19); b) generating a lifting force directed contrary to the sinking force of the battery cell (1); c) changing the ambient pressure to a second ambient pressure (19) and measuring the buoyancy force of the battery cell (1) in the non-conductive liquid (3) depending on the ambient pressure (19); d) determining the amount of gas (21) located in the battery cell (1) taking into account the first ambient pressure and the second ambient pressure, the buoyancy force determined for the ambient pressure, the temperature of the non-conductive liquid (3) and the density of the liquid.

The invention discloses a method for detecting chloride ions in waste incineration fly ash. The detection method comprises the following steps: step 1, weighing 2-4g of waste incineration fly ash and putting the waste incineration fly ash into a beaker; 2, 50-100 mL of deionized water is added into the beaker and fully stirred, and the fly ash and the water are fully and evenly stirred; 3, filtering the mixed solution in the step 2 to obtain a filtrate; step 4, filling the filtered mixed solution into a pycnometer; and 5, calculating the content of chloride ions. The detection method disclosed by the invention is simple in operation steps and accurate in detection data, and has a very important reference value for researching the physicochemical properties of the waste incineration fly ash.

The invention discloses a melt viscosity and density integrated measuring instrument and a measuring method thereof. The measuring instrument comprises a vacuum chamber, an oscillation device, a density measuring assembly and a viscosity measuring assembly, wherein the density measuring assembly and the viscosity measuring assembly are arranged in the vacuum chamber; the oscillating device comprises a suspension fiber, a connecting rod and a driving element; two ends of the suspension fiber are respectively connected with the driving element and the density measuring assembly; one end of the connecting rod is hinged with the density measuring assembly, the other end of the connecting rod is fixed with the viscosity measuring assembly, and the density measuring assembly and the viscosity measuring assembly are respectively driven by the suspension wire and the connecting rod to do periodic torsional vibration motion. The measurement method comprises the steps of sample loading, density measurement and viscosity measurement. The density measurement assembly and the viscosity measurement assembly are connected into a whole by arranging the oscillation device, the density of the melt is calculated according to the density measurement assembly, and the viscosity of the melt is calculated according to motion data of the viscosity measurement assembly of the melt. Therefore, the viscosity and density of the melt can be measured at the same time through one device, and the cost and time for measuring the viscosity of the melt are reduced.

The utility model relates to the technical field of density meters, and specifically refers to a density meter for measuring oil. It includes a density meter body, a bracket, a storage table, a hook and a weight. The bracket is arranged on the density meter body, the storage table is movably placed on the top of the density meter body, the hook is movably placed on the top of the bracket, the weight is movably placed at one end of the hook, and a clamping assembly is arranged on the storage table. The clamping assembly includes a plurality of clamps slidably arranged on the storage table, a sponge pad fixedly arranged on one side of the clamp, and a spring fixedly arranged at the bottom of the clamp. A fixing assembly is arranged on the bracket, and the fixing assembly includes a pair of fixed rings arranged at the top of the bracket, a pair of first knobs respectively threaded and rotatably connected to the pair of rings, a pressing sheet movably arranged on the pair of first knobs, and a pair of second knobs slidably arranged at the bottom of the bracket. Compared with the prior art, the utility model has the advantages that the liquid in the beaker is not easy to spill out, and the weight is more stable during measurement.

The present invention relates to a method for preparing a density gradient column, comprising the following steps: determining the number and density of the required floats according to the bulk density range of the product to be measured; selecting a first drug and a second drug according to the product to be measured; first determining the density values of the highest liquid level and the lowest liquid level of the mixed liquid in the density gradient tube; wherein the mixed liquid is formed by mixing a first liquid and a second liquid, and the density of the first liquid is lower than that of the second liquid; thereby further determining the density preparation value of the first liquid and the density preparation value of the second liquid in the mixed liquid at the target control temperature; preparing the first liquid and the second liquid by mixing the first drug and the second drug according to the density preparation values; filling the prepared floats, the first liquid and the second liquid into the density gradient tube to prepare a density gradient column. According to the method for preparing a density gradient column provided by the present invention, a linear density gradient column within the target density gradient range can be quickly prepared at one time.

The present invention belongs to the technical field of seawater salt making industry, and discloses a method for automatically measuring the Baume degree of seawater brine making, including: obtaining environmental information, including real-time wind speed and wind direction; obtaining relevant information of the brine making pool, including the length, width, height and basic water level of the brine making pool; establishing coordinates along the length, width and height of the brine making pool, and dividing the brine making pool into a number of virtual points according to the preset division accuracy of each coordinate; determining the lowest water level point of the brine making pool under the current environment according to the wind speed, wind direction and basic water level, and selecting a number of virtual points with different coordinate values ​​and located below the lowest water level point as measurement points under each coordinate; controlling an underwater mobile robot equipped with a Baume meter to automatically measure the Baume degree value at each measurement point; and obtaining the final Baume degree value by a regression fitting method according to the measured Baume degree value. The present method proposes an effective measurement scheme and solves the problems of low efficiency and low safety of traditional methods.