42results about "Material analysis by observing immersed bodies" patented technology

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.

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 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 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 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.

This invention relates to the field of rock mechanics and intelligent detection technology, specifically a method and system for predicting rock strength and failure modes. The method includes: obtaining a multi-source feature set based on data acquisition from a rock sample; constructing a feature coefficient prediction model, inputting the multi-source feature set into the feature coefficient prediction model to obtain feature coefficients; filtering the multi-source feature set based on the feature coefficients to obtain an optimal feature subset; constructing a rock strength and failure mode prediction model, and optimizing the hyperparameters of the rock strength and failure mode prediction model using an automated hyperparameter optimization framework; inputting the optimal feature subset into the optimized rock strength and failure mode prediction model to obtain the predicted rock strength value and failure mode. This invention solves the problems of insufficient accuracy and inability to predict rock strength and failure modes simultaneously in existing technologies. Through multi-source data collaborative prediction, the accuracy of the prediction is greatly improved.

This invention discloses a testing device and process for electroplating solution treatment of electronic components, relating to the field of electroplating solution testing technology. It includes a testing host with a display screen electrically mounted on its surface, a support base fixedly mounted on the upper surface of the host, a measuring frame fixedly mounted on the surface of the host, a hook rod sleeved on the surface of the measuring frame, and a glass weight hooked on the lower surface of the hook rod. The invention also includes a wiping device disposed on the upper side of the testing host for wiping the glass weight after use. By incorporating the wiping device, this invention facilitates the guidance and rapid wiping and drying of the glass weight, further reducing the possibility of residual electroplating solution adhering to the glass weight during use and potentially affecting subsequent experimental results. While facilitating normal operation of the testing host, it minimizes the error in electroplating solution measurement results and improves the accuracy of experimental results to a certain extent.

The invention discloses a full-automatic measurement method and system for the density of a cable protection pipe, and belongs to the technical field of material physical property detection. The method is executed based on automatic equipment integrated with a weighing system, a carrying system and a control system, and comprises the following steps: after automatic peeling, a robot clamps a sample and places the sample on a dry sample table for dry weight weighing; then, through lifting of the lifting driving mechanism, the dry sample table is linked to break away from weighing, the wet sample table is pulled to break away from the impregnation liquid, and overtravel lifting continues to enable the cover plate to be separated from the wet sample table; after the robot transfers the sample to the wet sample table, the lifting mechanism descends to enable the cover plate to cover and fix the sample, the wet sample table is immersed in the impregnation liquid, and meanwhile, the dry sample table is reset for wet weight weighing; finally, the sample density is automatically calculated according to dry and wet weight data. The full-process automation of density measurement by the impregnation method is realized, and the measurement precision, efficiency and reliability are remarkably improved through precise sequential control and anti-pollution design.

The utility model discloses a detection platform suitable for a densimeter, and particularly relates to the technical field of densimeters, the detection platform comprises a densimeter and a transparent water tank arranged at the top of the densimeter, the bottom of the transparent water tank is provided with a supporting pressing plate, and the periphery of the top of the supporting pressing plate is symmetrically and fixedly connected with fixed cylinders; a fastening bolt is inserted into one side of the top end of the fixing cylinder, and an inserting rod is inserted into the top of the fixing cylinder. According to the utility model, the inserted link is inserted at the top of the fixed cylinder, the height of the support frame can be adjusted as required by rotating the fastening bolt and controlling the inserted link to move up and down, and the adjusted height is fixed, so that objects with different sizes can be conveniently adapted to carry out soaking test; through cooperation of the second connecting rod and the connecting rotating shaft, the two hooks can be operated at the same time by pinching or unfolding the second connecting rod, disassembly or hanging use is convenient, assembly and disassembly are convenient, and operation smoothness is improved.

The invention discloses a composite hydrometer capable of remotely transmitting signals, belongs to the technical field of solution density detection, and solves the problems that a traditional hydrometer needs manual reading and cannot automatically transmit data, and an electrode is easy to corrode and the precision needs to be frequently corrected in a conductivity measurement method. According to the technical scheme, a first floating unit and a second floating unit are sleeved in a sliding mode to form a combined body, and the ratios of the weights to the cross sectional areas are different; a sensing unit is arranged to detect the height difference or variable quantity of the two floating units caused by liquid density change, and converts the height difference or variable quantity into an electric signal or an optical signal; and the signal processing unit receives the signal and calculates the liquid density or the variable quantity according to the ratio, and the hydrometer realizes real-time remote transmission of measured data through a combination body with a specific shape and structure, and is suitable for various liquid density measurement scenes.

A simulated lunar soil inspection method for construction research. The method comprises: determining a particle size distribution parameter of a simulated lunar soil sample, and calculating a particle size distribution parameter similarity between the simulated lunar soil sample and real lunar soil; determining a mineral composition parameter of the simulated lunar soil sample, and calculating a mineral composition parameter similarity between the simulated lunar soil sample and the real lunar soil; determining a particle shape parameter of the simulated lunar soil sample, and calculating a particle shape parameter similarity between the simulated lunar soil sample and the real lunar soil; determining a density parameter of the simulated lunar soil sample, and calculating a density parameter similarity between the simulated lunar soil sample and the real lunar soil; and when the particle size distribution parameter similarity, the mineral composition parameter similarity, the particle shape parameter similarity and the density parameter similarity all exceed corresponding thresholds, the simulated lunar soil sample passing the inspection.

The invention discloses a liquid specific gravity monitor which comprises a detection rod, and a floater is installed on the detection rod in a sliding mode. The detection rod is further provided with two limiting blocks, and the two limiting blocks are arranged above and below the floater respectively. The detection rod is further provided with a reed switch, and the reed switch is arranged above the floater. A permanent magnet is further arranged in the floater, and the weight of the floater is increased by adding a balance weight into the floater. The device has the advantages of being simple in structure and stable in performance, and can be applied to most occasions where continuous detection is not needed.

An apparatus for testing a mechanical property of a buoyancy material in an abyssal environment and a test method are provided. The apparatus includes a split-type high-pressure tank. An independent tester is fixedly mounted inside the high-pressure tank. The tester includes a rack fixed inside the high-pressure tank by using mounting screws. A base is disposed on an upper surface of the rack. A column is vertically mounted to the base. A guide key is mounted to the column. A spherical-cage apparatus is mounted at a top of the column by using a ball holder. A spherical test piece is disposed inside the spherical-cage apparatus. A bottom of the spherical-cage apparatus is connected to a grating assembly by using a hook. A guide mechanism and a support are respectively mounted at a middle part and a lower part of the column. A light sensor and a light source are respectively disposed on two sides of the grating assembly. A bottom of the grating assembly is connected to the base by using a metering tension spring. Therefore, the mechanical property of the buoyancy material can be conveniently tested, to provide a new and effective method for performing technical judgment on the buoyancy material used in the abyssal environment, determining an effect generated in research of the buoyancy material, satisfying a balanced design requirement of a submersible, and the like.

The utility model discloses a quantitative detection device for viscous liquid, which is characterized in that a measuring container integrates stirring, temperature control and weighing and is used for accommodating quantitative viscous liquid in a viscous production process; the stirring assembly is used for stirring in the measuring container; the temperature control assembly is used for adjusting the temperature in the measuring container to be stable; the weighing assembly is connected with the measuring container and is used for measuring the weight of the reaction container; the upper part of the measuring container is used for being connected with an external input pipeline and a cleaning solution inlet; and the material outlet and the reflux circulating pipeline are arranged at the bottom of the measuring container and are used for connecting an external output pipeline. According to the utility model, a heating and stirring combined mode is adopted to ensure uniform temperature distribution of materials in the container and an anti-condensation process of the materials; therefore, the viscosity or the state of the viscous liquid can be accurately measured, the measured liquid can be completely discharged from the discharge port path and the flushing pipeline, the liquid to be measured can be injected again, and the measurement work can be continuously and automatically completed.

The invention discloses a lead-acid battery electrolyte detection system based on sensor layout and light and shade signals, which comprises the following steps: acquiring the voltage of a lead-acid battery by using a voltage sensor, outputting a signal to a first high-low level conversion module, comparing the signal with a lower limit value of the voltage of the lead-acid battery, and outputting a first level signal; a liquid level height-density sensor is used for collecting height information of the liquid level of the lead-acid battery electrolyte, a signal is output to a second high-low level conversion module to judge whether the liquid level height is lower than the standard liquid level height of the electrolyte or not, and a second level signal is output; the density information of the electrolyte is collected, a signal is output to a third high-low level conversion module to judge whether the density of the electrolyte is lower than the standard density of the electrolyte, and a third level signal is output; a light and shade signal logic judgment module is used for receiving the three level signals and outputting light and shade signals to determine the detection result of the lead-acid battery electrolyte; and the electrolyte processing module is used for carrying out corresponding electrolyte processing. The sensor layout is simplified, and light and dark signal detection is simple and effective.

The utility model discloses a temperature-resistant drifting component of a densimeter, which relates to the technical field of densimeters and comprises a measuring base, a measuring platform is mounted at the top of the measuring base, a sample beaker is placed on the measuring platform, sample liquid is contained in the sample beaker, one side of the measuring base is fixedly connected with a fixed vertical rod, and the other side of the measuring base is fixedly connected with the fixed vertical rod. And a threaded rod is fixedly mounted on the other side of the measuring base. In the use process, the movable threaded sleeve is shifted to rotate, so that the movable threaded sleeve which is in threaded connection with the threaded rod moves up and down in the rotating process; further, a movable transverse rod rotationally connected with a first annular groove in a movable threaded sleeve is driven to move up and down synchronously with the movable threaded sleeve under the limiting action of a first vertical limiting groove in a fixed vertical rod, and a glass weight ball sleeving the outer ring of the movable transverse rod is driven to descend into a sample beaker to measure the density of a sample solution; therefore, the adjustment of the movable cross rod is more convenient and quicker.

The invention relates to a method and a control system (3) for an irrigation installation (1) on a farm (13), comprising a control computer (33) configured to interact with measuring devices (5) and actuators (9) of said irrigation installation (1) through a refined and aligned conversational AI, referred to as current conversational AI (35), to control the irrigation of said farm (13) based on data transmitted by the measuring devices (5) and taking into account information relating to the farm and the irrigation installation. Figure for the abstract: Fig. 1

The invention discloses a detection method of simulated lunar soil for construction research, which comprises the following steps: measuring the particle size distribution parameter of a simulated lunar soil sample, and calculating the similarity between the particle size distribution parameter of the simulated lunar soil sample and the particle size distribution parameter of real lunar soil; measuring mineral composition parameters of the simulated lunar soil sample, and calculating the similarity of the mineral composition parameters of the simulated lunar soil sample and the real lunar soil; measuring the grain shape parameters of the simulated lunar soil sample, and calculating the grain shape parameter similarity of the simulated lunar soil sample and the real lunar soil; measuring the density parameter of the simulated lunar soil sample, and calculating the density parameter similarity of the simulated lunar soil sample and the real lunar soil; when the particle size distribution parameter similarity, the mineral composition parameter similarity, the particle shape parameter similarity and the density parameter similarity all exceed corresponding threshold values, the simulated lunar soil sample passes the detection.

The invention discloses a seismic physical model material ratio parameter modeling method based on artificial intelligence. The method comprises the steps of S1, experimental design and data acquisition; s2, performing SVR forward modeling based on a kernel method, and constructing a nonlinear mapping model between a matching matrix of the epoxy resin, the silicone rubber and the talcum powder and physical parameters of the test block based on support vector regression of the kernel method; s3, a data enhancement strategy is carried out, Latin hypercube sampling is carried out in the design space of the material ratio to generate K groups, and K is larger than or equal to 100 new ratio parameters; and S4, performing reverse modeling based on a machine learning method, and constructing an inverse problem solving model for reversely deducing the material ratio parameter X from the target physical parameter Y. The method supports multi-target joint prediction, automatically meets the proportion constraint, has accuracy, robustness and engineering practicability, and provides an efficient and reliable solution for intelligent design of seismic physical simulation materials.

A liquid level sensing module, a non-transitory computer readable medium, and an equipment enclosure are provided. The liquid level sensing module has an equipment enclosure that houses an electronic equipment. The liquid level sensing module includes a liquid level sensor and a controller coupled to the liquid level sensor and configured to: receive a signal from the liquid level sensor indicative of a height of a dielectric liquid in the equipment enclosure; receive a signal from a pump controller indicative of a volume of dielectric liquid provided to the equipment enclosure; and generate a dielectric liquid volume map within the equipment enclosure from the signal from the liquid level sensor and the signal of the pump controller. The present invention is capable of overcoming at least one drawback of the prior art.

The utility model discloses an automatic liquid suction device for detecting the concentration of a battery electrolyte, and relates to the technical field of the concentration detection of the battery electrolyte, in particular to the automatic liquid suction device for detecting the concentration of the battery electrolyte, which comprises a battery main body, a mounting frame capable of being limited on the battery main body is arranged on the outer side of the battery main body, the mounting frame is movably connected with a lower pressing frame, a horizontal sliding groove is formed in the middle of the lower pressing frame, a mounting transverse plate is detachably mounted in the sliding groove, an electrolyte hydrometer can be mounted on the mounting transverse plate, and the lower pressing frame is movably connected with the lower pressing frame. And the top of the lower pressing frame is movably connected with an extrusion mechanism. By moving down the mounting frame, the electrolyte hydrometer can extend into the battery main body together with the mounting frame, and the electrolyte hydrometer can absorb liquid through extrusion of the extrusion plate, namely, the absorption of a plurality of electrolytic solutions is completed through one-time pushing and one-time pinching, so that the detection of the electrolyte hydrometer is more convenient.

The invention discloses a lead-acid battery electrolyte detection method based on sensor layout and light and shade signals, which comprises the following steps: acquiring the voltage of a lead-acid battery by using a voltage sensor, outputting a corresponding signal to a first high-low level conversion module, comparing the corresponding signal with a lower limit value of the voltage of the lead-acid battery, and outputting a first level signal; a liquid level height-density sensor is used for collecting height information of the liquid level of the lead-acid battery electrolyte, outputting a corresponding signal to a second high-low level conversion module to judge whether the liquid level height of the electrolyte is lower than the standard liquid level height of the electrolyte or not, and outputting a second level signal; collecting the density information of the electrolyte by using a liquid level height-density sensor, outputting a corresponding signal to a third high-low level conversion module to judge whether the density of the electrolyte is lower than the standard density of the electrolyte, and outputting a third level signal; and the light and shade signal logic judgment module is used for receiving the three level signals and outputting light and shade signals to determine the detection result of the lead-acid battery electrolyte. The sensor layout is simplified, and light and dark signal detection is simple and effective.

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 invention relates to the technical field of powder characteristic measurement, in particular to a 3D printer powder bed density calibration and measurement device which comprises a rack, a mounting plate is fixedly connected to the inner wall of a mounting sleeve, and a first laser distance measuring sensor and a second laser distance measuring sensor which are located at the same height are fixedly connected to the bottom of the mounting plate; the first laser distance measuring sensor transmitting point is located on the axis of the mounting sleeve, the horizontal distance between the second laser distance measuring sensor transmitting point and the first laser distance measuring sensor transmitting point is L. The first laser distance measuring sensor and the second laser distance measuring sensor are used for compensating the steel ball offset error by measuring the height of two points on the spherical surface of the steel ball. The first laser distance measuring sensor and the second laser distance measuring sensor are used for measuring the heights of two points on the spherical surface of the steel ball respectively, the actual circle center height is calculated through the horizontal distance L between the two points and the diameter D of the steel ball, errors caused by steel ball offset are offset, rapid and accurate measurement is achieved, and depth measurement errors are avoided.

A fluidic device for measuring at least one of a mass density and a weight of a particle is described. The fluidic device includes a sedimentation chamber fluidically connected to an inlet channel configured to be submerged in a liquid. The fluidic device also includes a pumping system connected to the sedimentation chamber. The pumping system is adapted to control a flow of the liquid in the sedimentation chamber. A processor of the fluidic device is configured to obtain particle data related to the particle in at least one region of the sedimentation chamber; and calculate at least one of a mass density and a weight of the particle based on the received data.

The invention relates to the technical field of bridge construction equipment, in particular to a slurry detection device, a slurry detection method and a slurry treatment device. The mud detection device comprises a detection groove, a floater and a sensing part; a liquid inlet is formed in the bottom of the detection groove; a liquid collecting tank is arranged outside the top of the detection tank in a surrounding manner, so that liquid in the detection tank flows into the liquid collecting tank after overflowing from the top opening; the liquid collecting tank is provided with a liquid outlet for discharging liquid; an ejector rod is arranged at the top of the floater; and a magnetic block matched with the induction part is arranged at the top of the ejector rod, so that the induction part induces the position of the magnetic block. The floater, the ejector rod and the magnetic block are arranged in a combined mode, the position of the magnetic block is sensed through the sensing component, the mud density is derived on the basis of the Archimedes buoyancy law, the problems that a traditional hydrometer is poor in manual placement stability and insufficient in precision are solved, and accurate detection of the mud density without manual intervention is achieved.

The invention discloses a method for measuring liquid density, and relates to the technical field of physical property measurement, and the method comprises the following steps: collecting mass data and volume data of a plurality of floaters for density measurement, and carrying out unified checking and benchmark association processing to generate a floater basic parameter set; based on the floater basic parameter set, a magnetic suspension effect is applied to a plurality of floaters in a closed container in a magnetic isolation suspension mode, a unified buoyancy measurement controlled condition is established by controlling the magnetic suspension effect, and a controlled suspension state is formed; based on the buoyancy difference result of the multiple floaters and the volume data of the floaters, the buoyancy differences corresponding to the different floaters are converted into liquid densities, consistency judgment is conducted, and the density measurement result of the liquid to be measured is determined. Through the formation of the controlled suspension state, the internal consistency among the measurement data of multiple floaters is effectively guaranteed, so that the liquid density measurement result has higher stability and repeatability.