64results about "Material analysis by measuring buoyant forces" patented technology

The utility model relates to the technical field of hydrological monitoring, and discloses an underground water real-time monitoring well which comprises a monitoring well. The monitoring analysis module comprises a processor, and an electronic dynamometer, a range finder and a pressure sensor which are electrically connected with the processor; the movable pulley is connected with the electronic dynamometer, the electronic dynamometer is used for measuring the stress of the movable pulley, a connecting rope is wound around the movable pulley, and one end of the connecting rope is located in the monitoring well and connected with a density ball; the hoisting mechanism is arranged on the ground surface, is electrically connected with the processor and is used for winding the other end of the connecting rope; the supporting frame is fixedly connected to the inner wall of the monitoring well, the supporting frame is located above the NAPL layer, a range finder is installed on the supporting frame and used for measuring the distance between the supporting frame and the upper surface of the NAPL layer, a telescopic rod is arranged on the supporting frame in a penetrating mode, and the lower end of the telescopic rod is connected with a pressure sensor. According to the utility model, the underground water density and the NAPL phase density can be monitored in real time by utilizing a drainage method, so that the calculation precision of the NAPL layer thickness is improved.

The present invention relates to the technical field of liquid density detection, and proposes a liquid density detection device and detection method, including a protective shell having a first through hole; a detection member arranged in the protective shell; an opening and closing member moving or rotating relative to the protective shell, and the opening and closing member is configured to open or close the first through hole after moving or rotating. Through the above technical solution, the problem in the prior art that the pre-stirring treatment of the slurry before detection may still damage the detection member through the through hole of the protective shell is solved.

The utility model discloses equipment for buoyancy measurement, which is applied to the field of buoyancy measurement equipment and comprises a first barrel, the top of the first barrel is communicated with a sleeve, a pressure sensor is mounted in the sleeve through a fixing part, an adjusting screw rod in sliding connection with the sleeve is arranged in the first barrel, and the adjusting screw rod is connected with the pressure sensor through a fixing part. The top of the adjusting lead screw is rotationally connected with a first connecting block through a bearing, the working end of the pressure sensor is fixedly sleeved with a second connecting block, and a supporting spring is installed between the first connecting block and the second connecting block through a fixing piece. The adjusting mechanism is installed in the sleeve, when the rotating rod rotates, the adjusting lead screw can be driven to rotate under the action of the bevel gear, and under the action of the guide rod, the adjusting lead screw rotates to drive the floating ball to conduct height adjustment in the first barrel. Therefore, the buoyancy of liquid with different depths can be measured, and the convenience is improved.

The invention discloses a preparation method of a silicon oxide density standard floater, which comprises the following steps: preparation of silicon dioxide slurry: dissolving silicon dioxide powder in photosensitive resin for preliminary mixing to form a mixture, and grinding the mixture to obtain the silicon dioxide slurry; 3D printing is conducted, specifically, the silicon dioxide slurry is put into photocuring 3D printing equipment to be subjected to 3D printing, and coarse silicon dioxide pellets are obtained; and cleaning and curing: cleaning and secondarily curing the silicon dioxide pellets. According to the photocuring ceramic additive manufacturing technology, through digital design-high-precision forming-gradient material integration, the problems of efficiency, precision and structure bottlenecks in traditional glass floater preparation are thoroughly solved, a hollow thin-wall and porous gradient complex structure can be formed, the structural design limitation is broken through, the forming precision is 25 microns, and the manufacturing cost is low. The machining size precision is greatly improved, the internal stress can be eliminated through an integrated degreasing and sintering mode in the preparation process, and the mechanical stability of the standard floater is improved.

The application discloses a kind of aeolian sand layered density measurement methods, steps are as follows: a top open water tank is arranged in advance, connect multiple connecting pipes at the bottom of water tank, each connecting pipe is vertically provided with pressure measuring tube, water tank has floating plate floating on water surface, and floating plate is fixed with sand container; after floating plate and sand container float up and stabilize, the initial height of water column in pressure measuring tube is recorded; aeolian sand layer with thickness d is added in sand container in batches, the change value of water column height Δh in pressure measuring tube is recorded, and the mass, volume and density of the layer aeolian sand under Δh height change are calculated;Repeat the above steps, assume that aeolian sand is n layers, when the total thickness of aeolian sand layer reaches D, the final mass m of sand layer of total thickness D of aeolian sand layer is calculated total , total density ρ total ; finally, the layered density of each aeolian sand is obtained by recursive calculation.The application aims to provide a kind of layered density measurement method capable of measuring the layered density of each layer of aeolian sand.

The utility model belongs to the technical field of gas density measurement, and particularly relates to a remote transmission type gas density meter. Comprising a shell, a bourdon tube, a movement, a pointer and a bimetal compensating plate, the angle sensor sleeves the rotating shaft end of the pointer and is used for detecting the deflection angle of the pointer; the remote transmission circuit board is arranged in a remote transmission signal box, and the remote transmission signal box is arranged outside the shell; wherein a signal amplification and filter circuit, a signal acquisition circuit, a main control chip circuit and a wireless communication module are integrated on the remote transmission circuit board; and the input end of the signal amplifying and filtering circuit is connected with the signal output end of the angle sensor. According to the utility model, the deflection angle of the pointer is obtained by designing the angle sensor, and angle data is converted into a density numerical value through the main control chip, and then the density numerical value is remotely transmitted to a remote terminal background, so that the functions of remotely monitoring and reading the density numerical value are realized.

The invention discloses an absolute measurement method and device for the density of molten salt and solution, and belongs to the field of molten salt physical property tests.The measurement method comprises the steps that 1, a cone and cylinder composite heavy hammer is adopted to measure the density of the molten salt or solution; 2) arranging two measuring positions on the cylinder section of the heavy punch, taking the section between the two measuring positions as a middle measuring section, the length of the middle measuring section is equal to the distance between the two measuring positions, the diameter of the middle measuring section is equal to the diameter of the cylinder of the heavy punch, and measuring at the two positions in sequence; (3) the density of the fused salt or the solution is determined by the volume of the middle measuring section of the heavy hammer and the buoyancy borne by the middle measuring section, so that the density of the fused salt and the solution is deduced; according to the method, a long-distance microscope system is adopted to directly measure the thermal expansion of the heavy hammer at high temperature, calibration by a standard substance is not needed any more, when the method is adopted to measure the density of the fused salt and the solution, the volume of the heavy hammer does not need to be calibrated, additional force caused by surface tension is completely removed, the measurement process is greatly simplified, and the measurement precision is improved.

The present invention discloses a high-precision buoyancy densitometer and a method for measuring liquid density, which aims to solve the problem that in the prior art, when measuring liquid, the liquid must be still, so that the liquid is stratified and thus cannot reflect the true density of the liquid. The present invention solves the above technical problems through the following technical solutions: a weighing device; a weighing switching platform; a main container for holding samples is arranged on the weighing switching platform, and a stirring container and an output container connected to the main container are arranged on both sides of the main container; a magnetic stirrer corresponds to the position of the stirring container; a weighing base provided with a weighing sensor, which is arranged on the weighing device, and the weighing switching platform is suspended on the weighing base; the weighing base is connected to a support frame, and the top of the support frame is connected to a buoyancy measurement block through a pull rope.

The measuring sphere is suspended from a lightweight and precisely adjustable device, which can be lowered to the millimeter by means of a gear mechanism.

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 utility model discloses a solid and liquid density detector, which belongs to the technical field of density detectors and comprises a control display host, a weighing component A and a weighing component B. The weighing component A and the weighing component B are mounted in an outer shell, the weighing component A is mounted on the inner bottom surface of the outer shell, and a support is mounted on the weighing component A and extends out of an equipment opening formed in the upper end surface of the outer shell; a glass container is installed on the weighing assembly B. The weighing assembly B is installed on the weighing assembly A and located in the support. According to the utility model, a glass container is installed on a weighing assembly B, a support is installed on a weighing assembly A, and the weighing assembly B is installed on the weighing assembly A; by means of the auxiliary hanging basket and water, the density of solids in any shape can be conveniently measured; by means of the auxiliary square block, liquid density measurement is conveniently achieved, and convenience, high efficiency and accuracy are achieved.

According to the portable rock core data comprehensive test box provided by the invention, the rock core manufacturing module, the test sensor assembly and the electrical processing unit can be integrated into one box body through integrated arrangement, and full-automatic test and storage of data are realized. The portable rock core data comprehensive test box comprises a box body, and a rock core manufacturing module, a test sensor assembly and an electrical processing unit which are arranged in the box body, the interior of the box body is partitioned and is provided with a rock core manufacturing module, a test sensor assembly and an electrical processing unit in multiple layers; the rock core manufacturing module is used for manufacturing a rock core sample with the section flatness meeting the set requirement in a grinding mode. The test sensor assembly comprises a rock core fixing support and a plurality of test sensors for testing different properties of a rock core sample; the rock core fixing support is used for fixing a rock core sample during testing; the plurality of test sensors are respectively connected with the electrical processing unit, and the electrical processing unit is used for receiving test data of the test sensors.

This invention discloses a method for testing the density of corrugated pipes, with the following specific steps: First, cut the corrugated pipe specimen; second, select a density testing instrument for testing; third, weigh the corrugated pipe specimen in air; fourth, remove air bubbles from the corrugated pipe specimen and immerse it in water; fifth, automatically determine the weight increase; sixth, calculate the weight of the corrugated pipe specimen in its submerged state. The lifting and lowering mechanism of this invention can lower the corrugated pipe specimen, after it has been weighed in air, into distilled water. During the immersion process, the first and second elastic cleaning wires can handle the air bubbles in the grooves of the corrugated pipe specimen, eliminating the need for manual handling. Furthermore, because the lifting and lowering mechanism lowers the corrugated pipe specimen, it ensures that the specimen effectively sinks to the positions of the first and second elastic cleaning wires for treatment.

The invention relates to the technical field of samplers, and provides a sampler with a density sensor, the sampler comprises a mounting groove frame, a bucket-shaped sampling barrel and the density sensor, the density sensor is longitudinally and slidably arranged in the bucket-shaped sampling barrel, the sampler also comprises a hoisting mechanism, the hoisting mechanism is arranged between the mounting groove frame and the bucket-shaped sampling barrel, and the density sensor is arranged in the mounting groove frame. The hoisting mechanism is used for driving the bucket-shaped sampling barrel to ascend and descend, the hoisting mechanism comprises a middle hoisting assembly and two side hoisting assemblies, the middle hoisting assembly can further drive the density sensor to longitudinally move in the bucket-shaped sampling barrel, the two side hoisting assemblies can drive the bucket-shaped sampling barrel to incline, and an entering and discharging mechanism is arranged in the bucket-shaped sampling barrel. By means of the technical scheme, the problem that in the petroleum density detection process in the prior art, density detection cannot be conveniently conducted in a sampler through a density sensor is solved.

The invention relates to an automatic measuring machine (10) for automatically determining a respective density of a plurality of solid test pieces (1), comprising a measuring device (2) with a dry weighing device (3) and a wet weighing device (4), a test piece magazine (5) for accommodating a plurality of solid test pieces (1), and a conveying unit (6) for conveying the solid test pieces (1) from the test piece magazine (5) to the measuring device (2), wherein the automatic measuring machine (10) is designed to sequentially convey the solid test pieces (1) to the measuring device (2) using the conveying unit (6), to weigh the solid test pieces (1) using the dry weighing device (3) and the wet weighing device (4) in order to obtain a respective weighing measurement for each solid test piece (1) and to determine a respective density value for each solid test piece (1) on the basis of the respective weighing measurement.

This invention discloses a method for simultaneously measuring multiple thermophysical properties of a refrigerant / lubricating oil mixture. The method involves evacuating a vibrating string device, controlling the pressure and temperature to a set value to achieve a constant temperature and pressure state; calibrating the volume of the cavity and pipelines of the vibrating string device; filling the vibrating string device with lubricating oil and refrigerant; measuring the density and viscosity of the mixture at the test temperature and pressure using the vibrating string method; measuring the pressure under the current state, which is the saturated vapor pressure of the refrigerant and lubricating oil mixture; and calculating the solubility of the refrigerant in the lubricating oil at the test temperature and pressure based on the obtained data. This invention provides a simple method for simultaneously measuring multiple physical properties such as density, viscosity, saturated vapor pressure, and solubility without repeated sample filling, simplifying past measurement steps, saving sample usage, facilitating rapid acquisition of experimental data for desired physical properties, and improving measurement efficiency.

The invention discloses a method for simultaneously measuring various thermophysical properties of a refrigerant / lubricating oil mixture, which comprises the following steps of: vacuumizing a vibrating wire device, controlling the pressure and the temperature to be a set value, and achieving a constant-temperature and constant-pressure state; calibrating the volume of the cavity and the volume of the pipeline of the vibrating wire device to obtain the volume of the cavity and the volume of the pipeline; lubricating oil and a refrigerant are filled into the vibrating wire device; measuring the density and viscosity of the mixture under the test temperature and pressure by using a vibrating string method; measuring the pressure in the current state, wherein the pressure is the saturated vapor pressure of the refrigerant and lubricating oil mixture; and calculating the solubility of the refrigerant in the lubricating oil under the test temperature and pressure according to the obtained data. The invention provides a simple method for simultaneously measuring various physical properties such as density, viscosity, saturated vapor pressure, solubility and the like without repeatedly filling a sample, so that the previous measurement steps are simplified, the application amount of the sample is saved, the experimental data of the required physical properties can be quickly obtained, and the measurement efficiency is improved.

The invention belongs to the technical field of density screening, and discloses solid sample density screening equipment, which comprises a test liquid and a container for accommodating the test liquid, and the density of the test liquid determines the floating and sinking states of a solid sample in the test liquid; the wall of the container is provided with a temperature sensor and a sensor used for measuring the liquid level of the container in the depth direction, and the temperature sensor is used for measuring the temperature of the test liquid. According to the method, density screening can be rapidly carried out on the solid samples, the detection efficiency is greatly improved, the requirement for real-time rapid detection on a large-scale production line can be met, compared with a traditional detection method, the detection time can be shortened by several times or even dozens of times, specifically, the solid samples are rapidly and accurately screened through the buoyancy law, and the detection efficiency is greatly improved. The solid sample with the density smaller than that of the testing liquid floats upwards, and the solid sample with the density larger than that of the testing liquid sinks.

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 invention relates to the technical field of density measurement, and discloses a target material density measuring device and method.The measuring device comprises a water pump, a rack, a water tank, a lifting mechanism and a weighing mechanism, the water tank, the lifting mechanism and the weighing mechanism are arranged on the rack, a conveying mechanism is arranged on one side of the rack, and the water tank is arranged at the bottom of the rack; the water pump is communicated with the water tank in a circulating mode, a water baffle is arranged on the inner side wall of the water tank, the weighing mechanism comprises a scale body and a first bracket arranged in the water tank, the first bracket is connected with the scale body, a second bracket is supported on the scale body, and the second bracket is connected with the water tank. A first supporting mechanism is arranged on the portion, located between the first bracket and the second bracket, of the rack and corresponds to the conveying mechanism in an opening and closing mode, and the lifting mechanism is used for conveying the target material from the first supporting mechanism to the first bracket. Operation difficulty and labor intensity can be effectively reduced, the safety coefficient is improved, manpower waste is reduced, and loss caused by falling of the target material is avoided.

The invention discloses a method for efficiently detecting the sugar content of sugarcane juice in batches, which comprises the following steps: step 1, data acquisition: acquiring the observed light conversion degree, the observed temperature and the observed brix value of the to-be-detected sugarcane juice; step 2, sugar calculation: substituting the data in the step 1 into a sugar calculation formula to obtain the sugar of the cane juice; step 3, analyzing and screening results, arranging the sugar values of the cane juice obtained in the step 2 according to a descending order to screen high-sugar strains, marking and re-detecting abnormal samples, and recording detection time, environment and operator information; step 4, data management: synchronizing detection data to a cloud database through an Internet of Things terminal, and generating a field sugar distribution thermodynamic diagram by associating GPS positioning; by integrating a multi-parameter optical detection technology, a dynamic mathematical model and Internet of Things data management, efficient and accurate screening of batch samples is realized, and temperature compensation and three-time brix mean value calibration are combined by adopting joint detection of an Abbe refractometer and a polarimeter.

The utility model belongs to the technical field of gas density measurement, and particularly relates to a reference type mechanical gas density meter. Comprising a shell, a bourdon tube, a movement and a bimetal compensating plate, the air bag chamber is communicated with the inner cavity of the shell, a reference air bag is suspended in the air bag chamber, and reference gas is filled in the reference air bag and is used as a density reference substance; the reference air bag is in transmission connection with the spring tube through the elastic element. According to the reference type mechanical gas density meter, temperature compensation is carried out by utilizing the air pressure and temperature change of the reference air bag on the basis of double-metal-sheet compensation. Compared with a single bimetallic strip, the characteristic is more stable, and the measurement precision and sensitivity are higher.

This invention discloses a method for determining the quality of a steel product coating, specifically: the mass of the coating in water is determined using a hydrostatic balance, and then the coating mass is calculated as: Coating mass = Mass of coating in water ÷ (1 - ρ) 水 / ρ 镀层 ) is calculated to obtain; where ρ 水 and ρ 镀层 The densities of water and the coating solution are given in g / cm³, respectively. This invention eliminates the need for sample drying before and after weighing, reducing operational steps and improving experimental efficiency. Furthermore, it minimizes sample contact with air, preventing data accuracy issues caused by product oxidation.

The present technology relates to a battery cell jig including a spacer laminate, a battery cell volume measuring device including the battery cell jig, and a battery cell volume measuring method performed by using the device. By including spacers that can be assembled into a spacer laminate, the space between a first plate and a second plate between which a battery cell is interposed can be easily adjusted. In addition, by including a slit unit that is open along a longitudinal direction in the spacer, water can be prevented from staying in the space between the battery cell jig and the spacer when measuring a volume change of the battery cell.

A rock block density detection device based on slime crystal mud comprises a straight barrel without a cover; a T-shaped sealing cover and an observation tube are arranged on the straight barrel without a cover in sequence; the observation tube is vertically connected to the T-shaped sealing cover and communicated with the straight barrel without a cover through the T-shaped sealing cover; the longitudinal axes of the straight barrel without a cover, the T-shaped sealing cover and the observation tube are coaxial; the straight barrel without a cover and the observation tube are filled with slime crystal mud; the slime crystal mud is made by mixing leguminous plant extract, borax and white glue, has no obvious bubbles and does not stick to the inner wall. The present invention uses a detection device and utilizes the characteristics of slime crystal mud, such as high fluidity, large deformability and good particle encapsulation, to directly measure the volume of rocks that disintegrate, dissolve and shrink when exposed to water, and then calculate the density of the rock block, which is simple to operate and scientifically designed.

To provide a method for determining density of a sample which is at least viscous and is specifically liquid by using a rotary rheometer.SOLUTION: A rheometer 100 includes: a first measurement unit 7 for containing a sample 12 which is at least viscous and is specifically liquid; and a second measurement unit 8 immersed in the sample 12. The first measurement unit 7 and the second measurement unit 8 are capable of making a relative motion to each other and a second measurement unit 8 has a known volume V. A method includes the steps of: measuring perpendicular resistance between measurement units 7 and 8 after the second measurement unit 8 is immersed in the sample 12, the measured perpendicular resistance corresponding to buoyance between the sample 12 and the second measurement unit 8; and calculating density of the sample 12, using the known volume of the second measurement unit 8 and the measured resistance, on the basis of the principle of Archimedes.SELECTED DRAWING: Figure 1

The utility model discloses a glass floating meter detection device, which relates to the technical field of glass floating meters and comprises a detection component, the detection component comprises an electric telescopic rod, the electric telescopic rod is mounted on a water tank, a connecting plate is mounted at the other end of the electric telescopic rod, and a miniature electric telescopic rod is arranged at the bottom of the connecting plate. A moving rod is mounted at the output end of the micro electric telescopic rod, a first moving block and a positioning assembly are mounted on the moving rod, the positioning assembly comprises a connecting strip, the connecting strip is mounted at the bottom of the first moving block, a limiting strip is mounted on the connecting strip, a positioning rod is slidably mounted in the connecting strip, a positioning block is mounted on the positioning rod, and a spring is mounted on the connecting strip; according to the utility model, through the arrangement of the detection assembly and the positioning assembly, water surface fluctuation can be prevented, so that a worker can observe the glass floating meter body more accurately, the glass floating meter body can be prevented from shaking along with buoyancy, and a measured value can be read quickly.

The invention belongs to the technical field of standard glass floater calibration, and discloses a static weighing method glass floater calibration system which comprises a topless rack, a marble vibration isolation platform is arranged at the top of the topless rack, a weighing device is arranged at the top of the marble vibration isolation platform, the weighing device comprises a microgram scale balance and a temperature measurement bridge, and the microgram scale balance is connected with the temperature measurement bridge. The bottom connecting end of the microgram-level balance penetrates through the marble shock insulation platform and extends into the topless rack to be connected with a platinum hanging spring, and the bottom end of the platinum hanging spring is connected with a hanging appliance. Compared with the prior art, the static weighing method glass float calibration system has the following beneficial effects that a static weighing method is taken as a basic principle, and a set of new static weighing method glass float calibration system consisting of a constant temperature device, a weighing device and a motion control device is developed aiming at the main problems of the existing device; any scale point in the full measuring range of the glass floater (0.8-2.2) g / cm < 3 > can be calibrated by using only one environment-friendly calibration solution.

The utility model relates to the technical field of liquid density detection, and provides a submerged liquid density detection device, which is used for being arranged in liquid for detection and comprises a main body with a detection area, a communication port is arranged on the main body, and a pressure sensor and a buoy body are both arranged in the detection area and connected with each other. And the cross sectional area of the buoy body is gradually increased from top to bottom. By means of the technical scheme, the problem that in the prior art, suspended particles in ore pulp cannot be prevented from falling on a buoy, the detected buoyancy value can be affected, and the obtained ore pulp density is not accurate enough is solved.