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69 results about "Grade measurement" patented technology

Grade measurement is the geodetic determination of the local radius of curvature of the figure of the Earth by determining the difference in astronomical latitude between two locations on the same meridian, the metric distance between which is known.

Sea cucumber pretreatment technology for mechanically processing and corresponding equipment thereof

The invention relates to a sea cucumber pretreatment technology for mechanically processing and equipment thereof. The sea cucumber pretreatment technology for mechanically processing comprises the working procedures of pre-inspection impurity removal, flexible cleaning, dirty removal classification, grading measurement, high-temperature stewing, extrusion molding and low-temperature cooling; in the working procedure of the pre-inspection impurity removal, a sea cucumber is sprayed, wetted and washed by purified water and screened by taking a hole and a seam with a certain geometric dimension as boundaries; in the cleaning working procedure, the sea cucumber is placed into a water storage container of which the bottom is input with pressure gas from bottom to top and transported by pressure water flow; in the working procedure of the high-temperature stewing, the sea cucumber is advanced at a certain speed in the boiling water of a stewing groove, and after being gathered, the scum of the water surface is dispelled out of the stewing groove in a guide gathering and/or draining way; and in the working procedure of the extrusion molding, the sea cucumber is sprayed and cooled by low-temperature water and extruded by elastic flexible force during drainage. A pre-inspection device, a cleaning device, a stewing device and a molding device are manufactured and provided according to the sea cucumber pretreatment technology for mechanically processing, thereby the high working efficiency is achieved and the high quality of a finished product is ensured.
Owner:FISHERY MACHINERY & INSTR RES INST CHINESE ACADEMY OF FISHERY SCI

Seabed sand wave geomorphology movement detection method based on MBES (multi-beam echo sounding)

The invention discloses a method of hydrographic surveying and charting and submarine topography geomorphologic survey research, and particularly discloses a seabed sand wave geomorphology movement detection method based on MBES (multi-beam echo sounding). The method provided by the invention adopts a decimeter grade measurement accuracy multi-beam sounding technology and a sub-meter grade positional accuracy navigational positioning system, the movement rate and direction of the seabed sand wave geomorphology are obtained through preparation before seabed sand wave detection based on the MBES, the detection of the seabed sand wave geomorphology based on the MBES, a DDM (difference of depth of modulation) construction based on the MBES measured data, secondary detection and treatment as well as sand wave movement rate calculation. The invention provides an exquisite detection scheme of a seabed sand wave movement and a rapid construction method of seabed grids and further provides an exact calculating method of the movement rate of the seabed sand wave, the methods have the important application values for hydrographic surveying and charting, oceanographic survey and seabed scientific research in a seabed high active region.
Owner:SECOND INST OF OCEANOGRAPHY MNR

Method and system for graded measurement of voice

The invention relates to a method and a system for graded measurement of voice. The method comprises the following steps: carrying out voice recognition for a received voice signal, and acquiring a voice feature sequence of state alignment according to a reference text and a reference model; correcting a distribution parameter of the reference model according to the voice feature sequence of state alignment, and generating a voice template vector based on the reference model for the voice signal; using a support vector machine classification decision tree to carry out classification decision for the voice template vector, and then, obtaining the classification grade mapped by the voice template vector. A support vector machine is provided by the invention to build a model for a language classification boundary, and the model is applied to language learning with the following steps: fetching the voice feature of the received voice signal, and carrying out state alignment between the received voice signal and the reference model; correcting the distribution parameter of the reference model and generating a corresponding voice template vector; and using the support vector machine classification decision tree to decide the voice template vector, thus, the complexity of the classification decision of voice is effectively reduced, and the accuracy of the graded measurement of voice is improved.
Owner:创而新(北京)教育科技有限公司

Coaxial image system applied to LED laser cutting device

The invention relates to a coaxial image system applied to an LED laser cutting device, comprising a coaxial LED point light source module, a 45-degree total reflection mirror, a wide-angle CCD module, a first 45-degree spectroscope, a small-vision field high-magnification upper CCD module, a second 45-degree spectroscope, a wavelength selection mirror, an LED ring light source, a focusing lens and a small-vision field high-magnification lower CCD module; the coaxial LED point light source module, the wide-angle CCD module and the small-vision field high-magnification upper CCD module are arrayed in parallel from top to bottom, the wavelength selection mirror is mounted between the CCD module and the focusing lens, the LED ring light source clings to the focusing lens which faces directly towards a workpiece, the small-vision field high-magnification lower CCD module is mounted below the workpiece. The invention realizes coaxial real-time image positioning function in the LED laser cutting device, combined usage of the wide-angle CCD and the small-vision field high-magnification upper CCD realizes micrometer-grade measurement accuracy, and the convenient switch of the small-vision field high-magnification upper CCD and the small-vision field high-magnification lower CCD meets the demands of front-cutting, back-cutting, surface coarsening and the cutting of back-aluminized wafer.
Owner:SUZHOU DELPHI LASER +1

Method for rapidly identifying and determining black and odor of urban water body based on multi-source spectral characteristics

PendingCN109142296AOvercoming single monitoring indicatorsOvercoming the lack of organic indicatorsColor/spectral properties measurementsFluorescence/phosphorescenceTurbidityRapid identification
The invention discloses a method for rapidly identifying and determining the black and odor of an urban water body based on multi-source spectral characteristics. A three-dimensional fluorescence spectrum is used for analyzing concentrations of humic acid, albumin and oil black and odor precursors in the water body, and a UV-visible absorption spectrum is utilized for analyzing and obtaining waterquality parameters of turbidity, chroma and nitrate black and odor and other related parameters, and water quality comprehensive indexes of COD, BOD and TOC are obtained by using fluorescence spectrum and absorption spectrum fusion inversion; combining dissolved oxygen and water temperature parameters, a water body black and odor grade measurement algorithm model is established based on data driving through testing and training of different types of water bodies in a plurality of cities, and the rapid identification and determination of the black odor grade of the water body is achieved. Themethod solves the problems of 'single monitoring index, organic index missing and ammonia nitrogen sampling and off-line measuring' in a water body black and odor monitoring method specified in Guideto Regulation of Urban Black and Odor Water Bodies, has the advantages of no reagent, no need of sample pretreatment, rapid measurement and the like, and is a rapid and effective method for measuringthe black and odor of water bodies.
Owner:HEFEI INSTITUTES OF PHYSICAL SCIENCE - CHINESE ACAD OF SCI

Flotation process yield optimization control method

The invention discloses a flotation process yield optimization control method, which comprises: real-timely acquiring the flotation machine liquid level measurement value, the flotation column liquidlevel measurement value, the flotation foam flow rate measurement value and the online grade measurement value in flotation process key operation; determining the validity of the acquired data, and controlling the output value of the system at an unchanged state if the invalid data exists; according to a crude ore grade measurement value and an enrichment ratio set value, automatically adjusting aconcentrate grade target control range; determining the change trend of the concentrate grade, the tailing grade and the foam flow rate by recording the fluctuation and the threshold value of the flotation foam flow rate measurement value and the online grade measurement value for a certain time; and according to the deviation and the variation of the online measurement value and the set value, automatically adjusting the yield set value in the flotation process key operation through a yield optimization control rule. With the method of the present invention, the key operation yield set valuecan be correctly and timely optimized so as to effectively reduce the fluctuation of the concentrate grade and the recovery rate and ensure the continuous, efficient and stable operation of the flotation process.
Owner:BEIJING MINING & METALLURGICAL TECH GRP CO LTD

Particle material grading measurement instrument and measurement method thereof

The invention discloses a particle material grading measurement instrument and a measurement method thereof. The particle material grading measurement instrument includes a base, a vibration table, sieve boxes, a sieve box cover, weight measurement units, a touch screen and a switch; the vibration table is arranged on the top of the base; the number of the sieve boxes is greater than 2, and the sieve boxes are stacked on the top of the vibration table from top to bottom; the sieve box cover is arranged on the top of the sieve box at the top; the weight measurement units are arranged in the sieve boxes; each weight measurement unit includes a sieve plate, a sensing ring, weight measurement springs, and strain gages, wherein the sensing ring includes an upper annular sheet and a lower annular sheet which are identical, the sieve plate is arranged on an inner ring of the upper annular sheet of the sensing ring; the diameters of sieve holes of the sieve plates of all the sieve boxes are decreasing gradually from top to bottom; the weight measurement springs are connected to the strain gages, the numbers of the weight measurement springs and the strain gages are 3-8, and the weight measurement springs and the strain gages are arranged between the upper annular sheets and the lower annular sheets; and the touch screen and the switch are arranged on a side wall of the base. After the particle material is sieved, the particle material grading measurement instrument can directly measure the mass of the particle material, can avoid errors, and can directly perform sieving analysis and export a grading graph and important data required by a test.
Owner:HOHAI UNIV

Soft concentrate grade measurement method and system based on hybrid sorting system of principal component analysis and online extreme learning machine

The invention discloses a soft concentrate grade measurement method and a soft concentrate grade measurement system based on a hybrid sorting system of a principal component analysis and online extreme learning machine. The soft concentrate grade measurement method comprises the following steps: through an established hardware platform, performing loop control of the thickener underflow ore pulp concentration and the thickener underflow ore pulp flow of the hybrid sorting system of the hybrid sorting system, and acquiring the thickener underflow ore pulp concentration DT, the thickener underflow ore pulp flow FT, a coarse floatation machine ore pulp liquid level hR, a fine floatation machine ore pulp liquid level hC, a scavenging floatation machine ore pulp liquid level hS and a flotationagent addition amount FFR though an analysis software system and a control loop; establishing a soft concentrate grade measurement model achieved by the principal component analysis and online extremelearning machine, and outputting an estimated value of the current concentrate grade through training and measurement of the measurement model. Through the soft concentrate grade measurement method and the soft concentrate grade measurement system, key indexes are provided for operation control of a hybrid sorting process.
Owner:SHENYANG INST OF ENG

Classroom student interaction grading measurement method and system thereof

The invention discloses a measurement method and system for class students' interactive scoring, wherein the measurement method includes the steps of: respectively counting the scores of corresponding students in multiple measurement links in the classroom through student terminals, and obtaining the scores of each student in each measurement link. The cumulative value of the score; then the combined statistics of the cumulative value of the scores of each student in all the measurement links, to obtain the average score of each student; the average score of each student is sent to the teacher's terminal and presented; wherein, the score is mutual One or more of grading, self-grading, and teacher-grading. The present invention measures classroom students' interactive scores by establishing multiple measurement links in the classroom, and realizes comprehensive, systematic, intelligent, and feasible quantification and measurement of classroom students' interactive scores, which is beneficial to the deepening and popularization of teaching process practice; and the present invention It is a simple and effective measurement method for classroom student interaction scoring, and realizes a fully digital, informatized, and intelligent classroom student interaction scoring measurement process.
Owner:SHENZHEN CAIJI TECH CO LTD

Antitheft tag for item protection

The invention relates to an antitheft tag for item protection. The antitheft tag comprises an advanced RISC machine (ARM) processor, an acceleration sensor, a global system for mobile communication / general packet radio service (GSM / GPRS) module, a GSM / GPRS double-frequency micro-strip antenna, a power management circuit, a lithium polymer battery and a solar cell panel, and is mounted in a polyvinyl chloride (PVC) shell, wherein the solar cell panel is arranged outside the PVC shell and is connected to the lithium polymer battery through a storage battery. The antitheft tag disclosed by the invention can monitor vibration from any direction in real time through the ultra-sensitivity three-axis acceleration sensor, and the antitheft tag, which is in plate-type ultrathin design, is good in invisibility effect and is not easily discovered; the built-in lithium polymer battery can work continuously for more than 30 days; through waterproofing structural design, the antitheft tag can be protected against from exposure to rain and sunshine and can work stably for long time under various environments; positioning accuracy is high, which can achieve nano-grade measurement. The system can realize multiple functions through a software platform, such as electronic map, anti-theft tracking, etc., and can be widely applied to antitheft of materials fixed and stored for long time such as electric power, steel, petroleum and chemical industry.
Owner:TIANJIN TELEVISION TECH INST

Automatic grading measurement method of diamond color

ActiveCN106679811AEliminate linearity errorsHigh precisionColor measuring devicesDiamond colorLower grade
The invention discloses an automatic grading measurement method of diamond color; the method includes steps of adjusting lighting and observing conditions so that the testing environment is consistent with environment observed by human eye; accurately positioning by a microscope zone so that the tested point is completely consistent with the measurement position point of a standard colorimetric stone when diamonds with different grains are measured; collecting an image signal and a spectral signal of a sample waist part and a pavilion and every position closing to the bottom point; contrasting a color coordinate of the measurement sample with the color coordinate of every grade standard colorimetric stone point by point; calculating the differential value between the color coordinate of the measurement sample and the color coordinate of every grade standard colorimetric stone, making the color grade of the measurement sample close to the national standard grade with the minimum differential value of the chromaticity coordinate; if the differential value of the color coordinate is consistent with two grades of standards, closing to the lower grade standard. The method guarantees the consistence of the diamond color grading and human eye observation by the automatic measurement system, simulates the traditional colorimetric environment of human eyes, and reduces the bias of the measurement system caused by different observing conditions.
Owner:石朴(上海)光学科技有限公司

Road grade scale for construction supervision

The invention discloses a road grade scale for construction supervision. The road grade scale comprises a grade indicator arranged on a main scale, support leg arranged on two ends of the main scale,a mounting frame slidably arranged on the main scale, a flattening assembly and a pressing roller arrange on the mounting frame, a sliding frame slidably arranged on the main scale, a detection rod slidably arranged on and passing through one end wall of the sliding frame, a baffle plate fixedly arranged on one end of the detection rod, a fixed frame fixedly arranged on the other end of the detection rod, a compression spring sleeving the detection rod and having two ends respectively connected with the sliding frame and a fixed member, and a roller rotatably arranged on the sliding frame, wherein the baffle plate contacts and is connected with the end surface of the sliding frame under the action of the returning force of the compression spring; the mounting frame is provided with an inductive component used for inducing the position of the baffle plate; the pressing roller is rotatably arranged on and connected with the mounting frame; the mounting frame and the sliding frame are connected by a connecting rod; and the pressing roller is arranged between the flattening assembly and the sliding frame. The road grade scale realizes the measurement of the grade of a roadbed slope andimproves the measurement accuracy of the grade of the roadbed slope.
Owner:中咨公路工程监理咨询有限公司

Grading device and application of organic nitrogen in soil leachate

ActiveCN105675366AEasy to operateGrading range is accurate and adjustablePreparing sample for investigationSoil massMicrometer
The invention provides a grading device of organic nitrogen in a soil leachate. The grading device is formed by an infusion bottle, a flow velocity control valve, a soil mass column, filter paper, a first liquid collecting bottle, a switch, a first filter, a second filter, a third filter, an air pump, a second liquid collecting bottle and a supporting frame, wherein the infusion bottle, the soil mass column, the first liquid collecting bottle, the first filter, the second filter, the third filter and the second liquid collecting bottle are sequentially arranged from top to bottom and are fixed by the supporting frame. According to the grading device provided by the invention, by adopting a mode of controlling the filter paper and the pore diameters of filter membranes in the filters, the pore diameters of substances in filter liquor are divided into four micrometer grades of 1.0 to 3.0, 0.45 to 1.0, 0.22 to 0.45 and 0.01 to 0.22, graded measurement on the content and the composition of the organic nitrogen is realized, and the grading device can be applied to grading of the organic nitrogen in the soil leachate. A method is simple and convenient in operation, and the content and the composition of the organic nitrogen in the soil leatchate can be quickly and effectively analyzed.
Owner:ZHEJIANG UNIV

Heat-resistant steel aging grade measurement method based on support vector machine

The invention discloses a heat-resistant steel aging grade measurement method based on a support vector machine. The method comprises the following steps: (1) using a laser spectrum analysis system torespectively obtain the plasma spectra of heat-resistant steel samples with different aging grades by means of lattice measurement; (2) selecting and calculating characteristic intensity variables from the plasma spectral data to form a spectral data matrix (3) projecting the spectral data matrix to a high-order feature space by means of kernel function transformation; (4) constructing a calibration and classification model by using a support vector machine algorithm; (5) using a laser spectrum analysis system to measure the plasma luminescence spectrum of the heat-resistant steel sample to be measured, and inputting the spectral data matrix into the calibration and classification model to obtain the aging grade of the sample to be measured. The heat-resistant steel aging grade measurement method is short in operation time consumption and can meet the requirements of real-time measurement of an industrial field; the heat-resistant steel aging grade measurement method has excellent robustness and adaptability to the metallographic inhomogeneity of steel, and can accurately measure the aging grade of a measured object without needing of arranging complex and excessive measurement points for the measured object.
Owner:SOUTH CHINA UNIV OF TECH

Border-irrigation-based quota irrigation method for alfalfa in desert region

The invention relates to a border check irrigation method and specifically relates to a border-irrigation-based quota irrigation method for alfalfa in a desert region. The border-irrigation-based quota irrigation method comprises the following steps: 1) land leveling and soil fertility grade measurement; 2) border irrigation optimal field parameter, namely preparing a land in the step 1) to form atrapezoidal section with the border width being 200cm, the border length being 2500cm, the check levee bottom width being 32cm, the check levee top width being 16cm and the check levee height being 22cm; 3) alfalfa planting, namely selecting an alfalfa variety "tourist" with high yield, drought resistance, cold resistance and short growth period, carrying out strip sowing with the depth of 6-8cmin soil under the conditions that each border is divided into 10 rows, the line spacing is 20cm, the sowing depth is 2.0-2.5cm, and the sowing quantity is 1.6kg/mu, and carrying out leveling after strip sowing; and 4) quota irrigation of alfalfa, wherein land surfaces (2) at two sides of a check levee (1) in the step 2) are provided with diversion trenches (5), and the check levee is provided witha uniform irrigation device. The border-irrigation-based quota irrigation method has the beneficial effects that due to the adoption of a technical scheme that the border-irrigation uniform water irrigation device is arranged and an optimal irrigation quota is screened, the aims of saving water and increasing the yield are achieved, and the market application prospect is good.
Owner:GANSU AGRI UNIV

Device and method for measuring gradient of edge slope by fishing rod type gradient ruler from opening line position of edge slope

The invention provides a device and method for measuring the gradient of an edge slope by a fishing rod type gradient ruler from an opening line position of the edge slope. The device comprises the fishing rod type gradient ruler and the like. The method comprises the following steps: (1) selecting a measurement position: selecting the measurement position from the upper side where the gradient of the edge slope needs to be measured; (2) retracting the fishing rod type gradient ruler: according to the size of the edge slope needing to be measured, retracting a fishing rod of the fishing rod type gradient ruler to enable a perpendicular line of the end part to reach a position needing to be measured, and hanging a plumb bob at the bottom of the perpendicular line; (3) leveling: adjusting a retractable rod of the fishing rod type gradient ruler to be leveled through horizontal air bubbles on the retractable rod of the fishing rod type gradient ruler; (4) reading: reading a length L for which the fishing rod type gradient ruler stretches out of an opening line of the edge slope and a height H from the perpendicular line of the end part of the fishing rod to the bottom edge of the edge slope; and (5) calculating: according to a gradient calculation formula i=H/L*100%, calculating the edge slope gradient i of the measured position of the fishing rod type gradient ruler. The device and the method are simple in process and convenient to operate; and the fishing rod only needs to be stretched out and leveled, and reading and calculation are carried out to finish the measurement of the gradient of the edge slope.
Owner:SCEGC MECHANIZED CONSTR GRP COMPANY
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