42 results about "Densitometer" patented technology

1. Name of the product in this design: Grouting Density Meter. 2. Purpose of this design: To measure the density of cement slurry. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: the front view.

The heat value allocation device comprises at least two gas source pipelines with different heat values, and each pipeline is provided with an adjusting valve and a flow meter; the efficient dynamic mixer is used for receiving the fuel gas from each gas source pipeline and fully mixing the fuel gas; the real-time monitoring system comprises an on-line calorific value analyzer and a densimeter which are arranged on an outlet pipeline of the mixer; the intelligent control system is used for receiving signals of the flowmeter, the calorific value analyzer and the densitometer and outputting control signals to the regulating valves of the pipelines; the invention discloses a safety interlocking system. The system and the method have the beneficial effects that online, real-time and accurate allocation is realized, the stability of fuel of the gas generator set is ensured, the power generation efficiency and the operation reliability are improved, and the adaptability of the set to different gas sources is enhanced.

The invention relates to an electrode drying apparatus, an electrode manufacturing apparatus, and an electrode drying method. The electrode drying apparatus includes: a dryer configured to form a dried active material layer by applying thermal energy to dry a fluid active material layer of an electrode active material slurry coated on a substrate moving in a first direction; a densimeter configured to measure a density of the fluid active material layer and a density of the dry active material layer; and a controller configured to control the dryer such that a magnitude of the thermal energy is adjusted based on a density change, which is a difference between the density of the fluid active material layer measured by the densitometer and the density of the dried active material layer.

The application discloses a short-focus projection touch geometric optical adaptive accurate calibration method, relates to the technical field of projection touch calibration, and is used for solving the problems of projection and touch geometric coupling, complicated calibration and long-term overall drift correction, and comprises the following steps: a unified geometric optical model and a layered state vector are established; a factory side establishes a model geometric optical priori, a residual base and a drift mode library based on multiple sample mechanisms; when a terminal is installed, a few-point joint calibration is completed by combining attitude and distance observation and a small amount of user clicks; in a running stage, projection side and touch side drift are identified by using multi-source observation data, and a state vector is updated; based on screen area error, uncertainty and interactive density calculation information value, an interface control layout is adjusted, and an explicit calibration trigger area is adjusted, so that the interactive area can maintain high and stable projection alignment accuracy and touch positioning consistency under different installation conditions and long-term operation.

The present invention provides a phase shifter that can be manufactured using a CMOS process, exhibits low optical propagation loss, can maintain refractive index changes without power supply, and allows for the resetting of those refractive index changes. [Solution] The phase shifter 100 of the present invention comprises an optical waveguide 101 composed of a core 105 and a cladding 106 surrounding the core 105, a substrate 102 on which the optical waveguide 101 is mounted, a heating means 103 for heating the core 105, and an ultraviolet irradiation means 104 for irradiating the core 105 with ultraviolet U, wherein the core 105 mainly contains silicon nitride, and the density of silicon dangling bonds of silicon nitride is 10 in terms of spin density 18 cm -3 The above 10 20 cm -3 The following applies:

The utility model belongs to the field of densimeter, specifically is glass densimeter damping device, including mounting seat, the upper end of mounting seat is equipped with the mounting groove, the inside of mounting groove is placed with glass densimeter body, the upper end of mounting seat is connected with protection subassembly, the lower extreme of mounting seat is connected with damping subassembly, the outside of mounting seat is connected with fixed component, through setting protection subassembly, initial state, four protection strips are all as far as possible to the middle close, with the spacing of medium axis line is less than the radius of conventional glass densimeter glass tube, when placing glass densimeter body, then will push and squeeze protection strip no.

The invention discloses a multi-mode monitoring method and system for accumulated dust of a dust removal pipeline, and relates to the technical field of accumulated dust monitoring. The monitoring method comprises the following steps: measuring a microwave characteristic value by using a microwave detection module, obtaining an optical characteristic value by using an optical auxiliary module, estimating an equivalent density rho by using a density estimation method based on the microwave characteristic value and the optical characteristic value, and calculating a deposition equivalent mass M based on the equivalent density rho, and the deposition equivalent mass M is a quantitative index capable of more accurately reflecting the dust deposition working condition, and can provide judgment on special working conditions such as caking, dust deposition loosening and local blockage, so that the method can adapt to the complex dust conveying working condition to accurately quantify dust deposition information, and is beneficial to accurately realizing risk assessment and providing maintenance suggestions. Moreover, a multi-mode monitoring means facilitates self-diagnosis and self-calibration, and is beneficial for avoiding the situation that a single means affects dust retention information feedback due to material characteristics, environmental changes and the like.

A planar vibratory member (300, 400) is provided, being operable for use in a vibrating densitometer (500). The planar vibratory member (300, 400) comprises a body (302) and a vibratable portion (304) emanating from the body (302), wherein the vibratable portion (304) comprises a plurality of vibratable projections, and wherein the plurality of vibratable projections are cantilevered. The vibratable portion is operable to be vibrated by a driver (504).

1. The name of the design product: table type density meter. 2. The use of the design product: for measuring liquid density, alcohol content, sugar content, salinity. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: perspective view 1.

The utility model discloses a water-cooled high-temperature concentration meter, which belongs to the technical field of concentration meters and comprises a measuring probe and a water-cooled component, a protective casing is sleeved outside the measuring probe, the water-cooled component comprises a cooling water tank and a cooling water pipe spirally wound on the surface of the protective casing, a water pump is mounted on one side of the cooling water tank, and a water outlet is mounted on the other side of the cooling water tank. A first guide pipe is fixedly connected between the outlet end of the water pump and one end of the cooling water pipe, a heat dissipation box is installed on the top of the cooling water tank, a second guide pipe is fixedly connected between the other end of the cooling water pipe and the heat dissipation box, and a third guide pipe is fixedly connected to the bottom of the heat dissipation box. Through the arrangement of the water cooling assembly, when the water-cooled high-temperature concentration meter is put into use, the measuring probe is inserted into high-temperature liquid, and meanwhile, the water cooling assembly is started to work to carry out water cooling protection on the measuring probe, so that the influence of temperature on a measurement result is reduced, the precision and reliability of concentration measurement are improved, and the service life of equipment is prolonged.

The application relates to the technical field of leakage gas density detection, in particular to a leakage gas two-dimensional density distribution measurement method based on background schlieren technology, which uses a CCD camera to shoot, and then obtains an experimental image affected by leakage gas and a reference image not affected by leakage gas; the reference image and the experimental image are compared, an inquiry window is selected, and then the total displacement of the inquiry window is obtained; a proper number of thermocouples are arranged at the edges of a gas flow field to measure the temperature, the measured temperature is taken as a boundary condition for gas refractive index calculation, and finally the density distribution of the gas in the gas flow field is obtained; the application can effectively improve the accuracy of leakage gas density calculation.

The present disclosure relates to an electrode drying apparatus, electrode manufacturing equipment, and an electrode drying method. The electrode drying apparatus includes a dryer configured to form a dried active material layer by applying thermal energy to dry a fluid active material layer of an electrode active material slurry coated on a substrate moving in a first direction. The apparatus also includes a densitometer configured to measure a density of the fluid active material layer and the dried active material layer, and a controller configured to control the dryer such that a magnitude of the thermal energy is adjusted based on a density variation that is a difference between a density of the fluid active material layer and a density of the dried active material layer as measured by the densitometer.

The application relates to the technical field of three-coordinate measurement, and discloses an active laser measuring head. The laser measuring head comprises a laser emission module, an ambient light constant module, an acquisition module, a signal processing and control module and an interference suppression unit. The signal processing and control module is used for segmenting a workpiece and a detection table based on texture features, automatically focusing based on definition and resolution, and calculating a curvature variation trend based on pixel density of each detection area. The measurement result is checked in combination with the curvature and brightness of the current area, and the measurement, light supplement and focusing parameters of the next area are adaptively adjusted based on the curvature trend. The interference suppression unit outputs a predefined stabilized image signal to the signal processing and control module to suppress measurement errors caused by ambient light fluctuation. Through dynamic adjustment of ambient light, automatic focusing and parameter adaptation, the application overcomes measurement errors caused by overcutting / undercutting of curved surface edges, high reflectivity or dark materials, and is suitable for high-precision three-dimensional measurement of complex curved surfaces.

The application discloses a kind of desulfurization absorption tower measuring instrument intelligent calibration method and device, it is related to industrial measuring instrument calibration technical field, wherein method includes: using industrial camera to collect slurry surface image, after lens distortion correction, gray scale and denoising processing, generate clear and distortionless image to be analyzed;Based on preprocessed image, through edge detection, morphological processing extraction and completion foam boundary profile, calculate foam coverage rate index;According to foam coverage rate grading determination slurry operating state and output grade early warning, monitor its change trend, detect when continuous rise trend early warning;Based on foam coverage rate, build correction model, calibrate the density meter, liquid level gauge measurement value disturbed by foam, output real parameter and prompt data reliability;Calibration data and early warning signal are uploaded to power plant distributed control system, complete whole-process application.The application realizes closed-loop intelligent control from slurry state monitoring to instrument calibration.

The invention discloses a method for correcting a densimeter method by using a nylon filter cloth wet screen analysis method, and relates to the technical field of particle analysis in soil mass engineering properties. And for the fine-particle soil body with the particle size smaller than 0.075 mm, based on the particle size division standard of the wet screen analysis method, synchronous adjustment of the particle size of the densimeter method is achieved by adopting an interpolation method, and verification is conducted. The principle is clear, the calculation process is completely programmed, more accurate gradation is obtained, the repeatability is high, the stability is high, and the reliability is high; the defects of time consumption, labor consumption, high cost and the like caused by comprehensive popularization of a wet screen analysis method are avoided, the advantages of simplicity and convenience in operation and good continuity of a densimeter method are reserved, and meanwhile, the precision of fine-grained soil particle analysis is improved; densimeter method system errors caused by Stokes law hypothesis, temperature influence, reading errors and other factors are effectively optimized, so that the finally obtained grain composition curve is closer to the real distribution of soil samples, and the problem of low data accuracy of the densimeter method, which puzzles engineering practice for a long time, is solved.

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.

A phase shifter (100) according to the present invention is provided with: an optical waveguide (101) formed of a core (105) and a cladding (106) surrounding the core (105); a substrate (102) on which the optical waveguide (101) is mounted; a heating means (103) for heating the core (105); and an ultraviolet irradiation means (104) for irradiating the core (105) with ultraviolet rays U. The core (105) contains silicon nitride as the main component, and the density of silicon dangling bonds of the silicon nitride is 1018-1020 cm-3 as expressed in spin density.<sp / >

A fluid sampling tool may include a fluid characterization device consisting of a densitometer, a viscometer, or a vibrating element, or a combination thereof and a polymer disposed in or around the fluid characterization device, wherein the polymer volume, density, or viscosity changes with an ionic stimulus. The fluid characterization device may be located within a bypass flow line of the sampling tool. A method of measuring pH and a method of monitoring at least two analytes at the same time using the fluid characterization devices are also discussed.

The application provides a high-precision heliostat energy flow density calculation method, and the calculation method specifically comprises the following steps: S1, determining the position, calculating the incident light and reflected light vector, and the normal vector coordinate of the heliostat; S2, meshing the heliostat and the receiving surface to obtain the mesh coordinate; S3, determining the position coordinate of the intersection point of the reflected sunlight center light of all the heliostat mesh points and the receiving surface; S4, calculating the included angle between the reflected light of the heliostat mesh point and the sunlight center light to obtain the energy flow density of the target mesh point of the receiving surface; S5, adding up the energy flow density contribution of all the heliostat mesh points to the receiving surface mesh point to obtain the calculated energy flow density of the receiving surface mesh point; and S6, repeating the step S4 and the step S5 to calculate the energy flow density of all the mesh points of the receiving surface. The application can quickly and accurately calculate the energy flow density distribution of the focused sunlight of the heliostat on the receiving surface and the interception rate, thereby helping the system design optimization and operation control.

The utility model relates to density gauge technical field discloses the density gauge of adjustable counterweight, including density gauge, the density gauge top is provided with the sealing cover, the sealing cover top is provided with the counterweight block, the counterweight block outer wall is fixedly connected with the connecting frame, the sealing cover outer wall is provided with fixed subassembly, the fixed subassembly includes the support plate, support plate one side fixedly connected in the sealing cover outer wall, support plate other side fixedly connected with the connecting column, the connecting column inside slide connection has the sliding plate, the sliding plate one side fixedly connected with the clamping block, the connecting frame inside is provided with the clamping groove. In the utility model, through the connecting frame alignment counterweight on the connecting column, the connecting column extrusion clamping block, makes clamping block compression telescopic column and spring, when the connecting frame cover enters the appropriate position, spring rebound, clamping block slides into the clamping groove and completes the fixed, when disassembling, press the clamping block to make it separate from the clamping groove and can take down the counterweight block, has realized the effect that the counterweight block can be quickly disassembled and installed.

The invention relates to the technical field of thermal hydraulic measurement and state monitoring, and particularly discloses a supercritical carbon dioxide density detection method and system. The method comprises a data acquisition step, a feature extraction step and a density calculation step. In the data acquisition step, an infrared transmission spectrum of supercritical carbon dioxide is acquired; in the feature extraction step, feature parameters of a specified wave band in the spectrum are calculated, wherein the feature parameters comprise a peak area and a peak value; in the density calculation step, the characteristic parameters are input into a pre-established quantitative mapping model, and a density value is obtained through calculation. By establishing the direct mapping relation between the spectral characteristics and the density, rapid, accurate and non-contact in-situ detection of the supercritical carbon dioxide density is realized, and the problems of response lag and critical zone misalignment of a traditional table look-up method are effectively solved.

The present application relates to supercritical carbon dioxide power system technical field, provide a kind of supercritical carbon dioxide cooling compression system, including supercritical carbon dioxide cooler, supercritical carbon dioxide compressor, compressor inlet regulating valve, compressor driving motor, multiple densitometers, multiple pressure sensors, data processing unit.Each densitometer and pressure sensor are inserted in supercritical carbon dioxide cooler hot fluid passage, and are provided with the measuring end directly contacted with supercritical carbon dioxide fluid.Data processing unit receives the signal transmitted by multiple densitometers and pressure sensors through cable, accurately predicts the flow and heat transfer performance of supercritical carbon dioxide cooler according to the preset supercritical carbon dioxide property table, and sends speed control signal to compressor driving motor according to the prediction result, and sends opening control signal to compressor inlet regulating valve, significantly improves the system stability and thermal cycle efficiency of supercritical carbon dioxide cooling compression system.

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 discloses an anti-crystallization tuning fork densimeter self-cleaning probe and a use method thereof. The anti-crystallization tuning fork densimeter self-cleaning probe comprises a top plate, a through pipe is arranged in the middle of the top end of the top plate, an electric telescopic rod is connected in the through pipe, a positioning plate is arranged at the telescopic end of the electric telescopic rod, and heating pieces are installed on the periphery in the positioning plate. The crystal probe has the beneficial effects that through the design of the strengthening layer, the adsorbability of crystals on the probe body can be effectively reduced, the probe body is heated through the heating piece, the crystal forming effect is effectively reduced, and the situation that a large number of crystals are attached when the probe body works for a long time can be effectively avoided; secondly, through the design of a first electric rotating disc and a second electric rotating disc, efficient self-cleaning of the device on the probe body can be achieved; and finally, through the design of an electric telescopic rod, a top plate, a mesh cage and a positioning plate, the electric telescopic rod can be controlled to drive the probe body to move downwards, so that the probe body can detect the density of the media of different levels.

A fluid sampling tool may include a fluid characterization device consisting of a densitometer, a viscometer, or a vibrating element, or a combination thereof and a polymer disposed in or around the fluid characterization device, wherein the polymer volume, density, or viscosity changes with an ionic stimulus. The fluid characterization device may be located within a bypass flow line of the sampling tool. A method of measuring pH and a method of monitoring at least two analytes at the same time using the fluid characterization devices are also discussed.

The present invention provides a quality determining system capable of acquiring temperature information of an environment in which an object is placed, and the quality of the object, with high accuracy. The quality determining system of the present invention is provided with a quality indicator (100) and a determining device (200). The quality indicator (100) is provided with a time-temperature indicator (110) and a unique ID unit (120) from which unique ID information of the object is read. The unique ID information includes information identifying the object and data acquired from the time-temperature indicator (110) of the object. The determining device (200) comprises: an information acquiring unit (420) that acquires the color density of the time-temperature indicator (110) associated with acquired unique ID information; a time-color density calculating unit (510) that calculates an amount of change in the color density of the time-temperature indicator (110) and the elapsed time from a date and time serving as a starting point; and a temperature calculating unit (520) that uses a rate of change in the color density, the amount of change in the color density, and the elapsed time to obtain a plurality of combinations of the time and temperature of the environment in which it can be considered that the object has been placed during the elapsed time.

The invention discloses a resonant sensor inherent frequency detection method based on adaptive convergence discrimination, and belongs to the technical field of digital signal processing and sensors. The technical problem to be solved is to overcome the problem of difficulty in amplitude extraction in a low signal-to-noise ratio environment in a traditional orthogonal phase-locking amplitude extraction method. The core of the technical scheme is as follows: after orthogonal phase locking and narrow-band filtering are carried out on a resonance sensor vibration pickup signal, an output sequence is input to a digital characteristic processing module; self-adaptive amplitude extraction is carried out according to the designed convergence discrimination scheme; and the resonant frequency of the system is determined by comparing historical amplitude data. The accuracy and the reliability of amplitude extraction in a strong noise environment are remarkably improved, and the algorithm is friendly in hardware and easy to efficiently implement in an FPGA (Field Programmable Gate Array). The method is especially suitable for occasions with high requirements on frequency detection precision and real-time performance, such as a resonance tube densitometer.

The invention provides a smoke volume calibration method for a performance test of an aircraft cargo hold visual fire detection system, and belongs to the technical field of aircraft fire prevention systems, and the method comprises the steps: 1, arranging combustibles and an optical density meter in an aircraft simulation cargo hold, and enabling the optical density meter to be arranged at the top of an upper cabin of the aircraft simulation cargo hold; 2, combusting combustible materials, obtaining the smoke transmittance generated by the combustible materials by using an optical density meter, and drawing a smoke transmittance numerical value curve; and step 3, replacing the combustible with a smoke generator, and continuously adjusting the smoke generator to enable a numerical curve of the transmittance of smoke emitted by the smoke generator to be the same as or similar to a numerical curve of the transmittance of the smoke generated by combusting the combustible, thereby obtaining the smoke amount during the performance test of the visual fire detection system of the aircraft cargo hold.

The invention discloses a cloud body visualization method based on weather radar data, a medium, equipment and a product. The method comprises the following steps: calculating a cloud particle diameter and a cloud particle distribution density according to the weather radar data; calculating the cloud thickness, the cloud aggregation degree and the edge index according to the cloud particle distribution density; constructing a first cloud visual density model according to the cloud particle diameter, the cloud thickness and the cloud aggregation degree; generating normalized three-dimensional noise distribution according to the cloud gathering center, and adding the normalized three-dimensional noise distribution to the first cloud vision density model to obtain a second cloud vision density model; calculating a Berlin noise weight according to the cloud aggregation degree and the cloud edge index, and adding the Berlin noise to the second cloud vision density model according to the weight to obtain a third cloud vision density model; light stepping is carried out in the pixel observation direction, the light transmittance and brightness values of pixels are calculated, and cloud body visual image expression is carried out by using a volume rendering technology. The obtained cloud distribution has the three-dimensional body structure information of the cloud, and the morphological structure characteristics of the cloud are highlighted.

The present application relates to a leaked gas analysis device for analyzing a leaked gas in a field. The leaked gas analysis device acquires image data obtained by using an imaging device to image a field and extracts, from the image data, both first luminance information corresponding to a gas non-leakage region and second luminance information corresponding to a gas leakage region. Column density information relating to the column density of the leaked gas in the gas leakage region is calculated on the basis of the first luminance information, the second luminance information, and the gas non-leakage region column density of a gas component corresponding to the leaked gas in the gas non-leakage region.