32results about How to "Simplify the measurement process" patented technology

The invention relates to a device and a method for measuring a horizontal laser vertically rotary three-dimensional shape, and belongs to the technical field of computer vision measurement. The device comprises a base, a camera, a horizontal laser, a motor, a rotational axis, an angle measuring element, a driving circuit, a switching circuit and a controller, wherein the camera and the horizontal laser are fixedly connected with the rotational axis of which a central line is positioned in a laser plane of the horizontal laser; the included angle between an observation plane formed by the central line of the rotational axis and a focal center of a lens and the laser plane is between 80 and 100 DEG; and the included angle between the central line of the rotational axis and an optical axis of the lens is between 40 and 50 DEG. The device can detect edge information in various directions, realize high-precision measurement of the three-dimensional shape of object surfaces, and avoid the inconvenience caused by rotation of objects in the prior method, has a simple structure, low cost and high measurement precision, and is suitable for surface detection of the objects with various dimensions.

The invention discloses a surface plasmon resonance and bio-sensing-based water chip. A light source, a beam expanding lens, a polarizer, an isosceles right-angle prism, a quarter wave plate, a polarization analyzer, an imaging lens and a planar array CCD are arranged in turn along the light direction, wherein the hypotenuse surface of the isosceles right-angle prism is plated with a gold film; biological modification is performed on the gold film so as to form a bio-sensitive film subjected to specific adsorption with impurities in aqueous solution to be detected; the refractive index change of the impurities to the aqueous solution to be detected is converted into light intensity change of reflected light; and the refractive index change is detected by using the SPR effect on the interface between the gold film and the isosceles right-angle prism so as to detect the concentration of substances in the solution. When the water chip is used, the concentration of various substances in the water can be detected at one time, a light path and a mechanical structure are simplified and the water detection efficiency is improved.

The invention discloses a flowmeter sensor based on an electromagnetic correlation method. According to the technical scheme provided by the invention, the flowmeter sensor comprises two pairs of measurement electrode assemblies, a pair of excitation structure assemblies, a pair of holed fixing frame plates and an excitation structure mounting device; each measurement electrode assembly comprises a detection electrode, an insulating sleeve, a spacer and a nut, the two pairs of detection electrodes are not arranged on a same radial section of a measurement tube, but arranged on a same axial section of the measurement tube and are a certain distance apart; and each excitation structure assembly consists of an excitation coil, an excitation coil clamping slot and a magnetic core, and the axial length of each excitation structure assembly on the measurement tube is larger than the radial length of each excitation structure assembly on the measurement tube so that the two pairs of detection electrodes are arranged in a magnetic field generated by the excitation structure assemblies. The flowmeter sensor disclosed by the invention has the advantages of simple process, capability of continuous measurement, low manufacturing cost, small volume, light weight, wide flow rate measurement range and high measurement accuracy and can measuring the flow a two-phase flow or a multi-phase flow on line.

The invention provides a three dimensional information vision measurement method based on refraction image deviation, belonging to the technical field of computer vision measurement, and relates to a three dimensional information vision measurement method based on refraction image deviation. The measurement method comprises using a single camera to take a picture A1; putting a glass plate with a known refractive index at the front of the camera by any angles; and using the camera to take a picture A2, and completing measurement of the space three dimensional information of a measured object by means of the deviation value of the two pictures. The measurement method only needs one single camera to match with a parallel glass plate with the known thickness and can reconstruct the three dimensional information for the characteristics in the images with no requirement for assistance of laser and a projector and also having no demand for the priori knowledge in the known images, thus reducing the measurement cost and improving the measurement efficiency, and can realize quick measurement for the whole vision field for a monocular camera.

The invention discloses an assessment method of single-phase non-isolation photovoltaic grid connected system for parasitic capacitance to ground, comprising steps of determining a common mode equivalent circuit, simplifying the common mode equivalent circuit, measuring leakage current of the system to the ground, analyzing the obtained resonance frequency, and estimating the parasitic capacitance. In the common mode equivalent loop, the parasite capacitor size can be calculated by measuring the voltage data and the current data; the common mode voltage is complicated in the component, the measurement is complicated and the measurement accuracy is low. The assessment method disclosed by the invention only needs to measure the leakage current to the ground when the system is working, avoids the voltage measurement in the common mode equivalent loop, and simplifies the complicated measurement process and the signal analysis process in the assessment process.

The invention relates to a multi-coal seam gas pressure measuring device and measuring method in a single drill hole. The multi-coal seam gas pressure measuring device in the single drill hole consists of pressure measuring tubes, a barbed wire cover, pressure measuring instruments, pressure gauges, sealing capsules, tee joints, inflation tubes, inflators and a gas stopping valve. The multi-coal seam gas pressure measuring method in the single drill hole comprises the following steps that coal seams to be measured are drilled a hole by a drilling rig, and the number of groups of the pressure measuring tube is determined according to the number of layers of the coal seams to be measured; distance between the coal seam and the coal seam and between the coal seam and an orifice is determinedaccording to the composition of drill cuttings, and the length of each group of the pressure measuring tube and the location of sealing capsules are further determined according to the composition ofthe drill cuttings; the pressure measuring tubes are sealed in the sealing capsules, and a pressure measuring device is assembled completely; the drill hole is flushed, the assembled pressure measuring device is inserted into the drill hole, and the drill hole is sealed by the sealing capsules; and when the pressure measuring instruments reading is stable, gas pressure value of each coal seam is directly read through the pressure measuring instruments, and thus measuring of the gas pressure of multiple coal seams in one drill hole is realized. The multi-coal seam gas pressure measuring deviceand measuring method in the single drill hole solves the problem that only one coal seam can be measured in one drill hole in a traditional measuring process, and has simple operation, low cost and strong practicability.

The invention discloses a digital measurement system and method for airplane structure deformation measurement and damage grading. The digital measurement system comprises a laser tracker, a laser radar and a data acquisition and processing system, the data acquisition and processing system is in communication connection with the laser tracker and the laser radar, wherein the laser tracker is usedfor three-dimensional coordinates of key points on an airplane; the laser radar is used for detecting a free-form surface with an irregular shape; the data acquisition and processing system is responsible for storing aircraft structure data, fitting an equipment measurement coordinate system and an aircraft theoretical coordinate system, and constructing a unified measurement network, and acquiring and processing measurement data. Damage deformation of each part can be precisely measured, and deformation of large-size parts like wings and fuselage which cannot be found by naked eyes can be detected; the measurement process is simple, the measurement speed is high, the measurement period is short, the automation degree is high, and manual operation errors are avoided.

The invention provides a wire frame pole and an integrally assembled wire frame pole axial force testing method. The wire frame pole comprises three structural units respectively including a first wire frame pole circular steel pipe (1), a second wire frame pole circular steel pipe (2) and an axial force sensor (3), and the three structural units form an integral body participating in stress; the testing method comprises the following steps: according to the stress situations of the integrally assembled wire frame pole, selecting a wire frame pole needing axial force testing, selecting a corresponding range of axial force sensor according to the stress of the wire frame pole, and calibrating and zeroing; assembling the first wire frame pole circular steel pipe, the second wire frame pole circular steel pipe and the axial force sensor through high-strength bolts, and integrally assembling; constructing by adopting the integrally assembled wire frame pole, and acquiring signals output by the axial force sensor through data acquisition equipment, thus completing the axial force stress analysis of the integrally assembled wire frame pole. The measurement flow can be greatly simplified, the workload can be reduced, and tremendous economic benefits can be achieved.

The invention discloses an omega-shaped sliding block type rapid inspection fixture for inspecting degree of symmetry of an elastic strip and an inspection method. The inspection fixture comprises a base, a reference locating plate, a reference shaft and sliding blocks, wherein the reference locating plate, the reference shaft and the sliding blocks are arranged on the base, the reference shaft is fixedly installed on the center line of the base, the sliding blocks are symmetrically installed on the left side and the right side of the reference shaft, a pointer is arranged on each sliding block, and scale marks corresponding to the pointers are arranged on the base. Compared with the prior art, the omega-shaped sliding block type rapid inspection fixture has the positive effects that the measurement flow is simplified, the pointers are matched with the scales of dial plates after the elastic strip is in place, no vernier caliper is needed in use, calculation is not needed, and the amplitudes of swing of the pointers are directly used to measure whether the degree of symmetry of the elastic strip is over the limit or not.

The invention discloses a method, device and system for collecting communication measurement data, wherein the method comprises the steps of: positioning a cell to be measured according to obtained cell identification information, searching for BCCH (Broadcast Control Channel) frequency points of an adjacent cell of the cell to be measured; obtaining the information of a virtual adjacent cell ofthe cell to be measured according to the information of the BCCH frequency points of the adjacent cell and obtaining BCCH interference frequency points to be actually measured; and sequentially filling the BCCH interference frequency points to be actually measured in the virtual adjacent cell to obtain the measurement data of the cell to be measured. The method, device and system for collecting communication measurement data need to obtain the BCCH interference frequency points which are actually used, thereby avoiding the polling measurement for all the BCCH interference frequency points in the prior art, simplifying measurement flow, shortening measurement time and enhancing working efficiency.

The invention discloses a real-time monitoring device and method for surface salt settling volume, the monitoring device comprises a host and a monitoring probe, the host generates a fixed-frequency AC excitation signal and transmits the signal to an interdigital electrode in the monitoring probe, and the host analyzes a feedback signal to obtain impedance value information; the salt settling volume on the surface of the interdigital electrode is determined according to a pre-formulated relation curve between the salt settling volume and the impedance value, and the salt settling volume in the actual environment can be obtained. The monitoring device can change the relative humidity of the surrounding environment of the interdigital electrode by adjusting the temperature, so that salt settled on the surface of the interdigital electrode absorbs moisture to form a liquid film, and the real-time monitoring of the salt settling volume on the surface of the interdigital electrode is realized. Compared with an existing measurement method, the method has the advantages that the operation process is simple, the measurement procedure is effectively simplified, the measurement time is greatly shortened, online real-time continuous monitoring of the salt settling volume can be realized, and the timeliness of the measurement result is ensured.

The invention relates to a check fixture and a method for regulating an SPECT/CT (single photon emission computed tomography/ computed tomography) bimodal biological imaging system by using the same, wherein the check fixture comprises a taper shank check rod and a size block which is sleeved on the outer cylindrical surface of the taper shank check rod and is in sliding match with the taper shank check rod; at least one end of the taper shank check rod is provided with a Mohs taper shank; the size block is provided with a through hole; the central axis of the through hole is vertical to and intersects with the central axis of the taper shank check rod; the taper shank check rod is provided with a trough hole corresponding to the through hole; and the check fixture also comprises two diaphragms which are arranged vertical to the central axis of the through hole at an interval, and the centers of the two diaphragms are both coincide with the axis. The check fixture has the advantages of simple structure, and flexibility and convenience in operation, has a plurality of functions of concentricity, parallelism, verticality measurement and the like; and the detection and adjustment of items such as the concentricity, parallelism, verticality of the bimodal biological imaging system can be realized by adopting the method, the operation is simple, and the reliability is high.

The invention discloses an ultrasonic flowmeter, which comprises a pressure-bearing shell and at least one set of transducer assemblies, the pressure-bearing shell is connected with a fluid pipeline; each set of transducer assemblies includes two ultrasonic transducers, each Each ultrasonic transducer includes a transducer base and a transducer probe, the transducer probe includes a metal probe protection shell, one end of the probe protection shell is connected to the transducer base, the other end is provided with a metal matching layer and It is inserted into the pressure-bearing housing through the installation hole on the pressure-bearing housing. The pressure-bearing shell, probe protective shell and metal matching layer increase the pressure-bearing capacity of the probe, and the probe can withstand a pressure of 42MPa, avoiding complicated depressurization processes and saving costs.

The invention relates to a multi-laser power balance control method for a laser radar. The method comprises the steps that a light emitting instruction is sent to a laser radar, wherein the laser radar comprises a plurality of lasers, and the light emitting instruction is used for controlling the lasers to emit light; a measurement result of an optical power measurement device is received, wherein the measurement result comprises the light emitting power of a target laser in the multiple lasers; and under the condition that the measurement result indicates that the light emitting power of the target laser is out of a preset range, the light emitting parameter of the target laser is adjusted according to the measurement result, and the light emitting power is further adjusted until the actual light emitting power of the target laser is converged in the preset range. According to the invention, unified measurement and correction only need to be carried out in the use stage until the light emitting power of all the lasers in the same laser radar is adjusted to be within the preset range, so that the requirement for the consistency of the lasers is reduced, and the technical problem that the power difference of the multiple lasers of the laser radar can be hardly reduced is solved.

The present invention belongs to the technical field of solvent extraction, and discloses a method for determination of complex extraction equilibrium constant of a double extraction agent organic phase system. According to the method, mixed extraction complex extraction equilibrium constant of the double extraction agent organic phase system can be calculated by use of known single extraction complex extraction equilibrium constant and reaction equilibrium constant of conversion of a single extraction complex into a complex extraction matter, and the method has the features of being simple in steps and easy to operate.

The invention belongs to the technical field of lab measurement, and particularly relates to a new <90>Sr gamma energy spectrum analysis method. The method comprises the following steps: (1) a target material with a proper thickness is chosen, wherein the target material can be Au or Cu, Au has a usable thickness of 0.10 to 0.12mm, and Cu has a usable thickness of 0.01 to 0.03mm; (2) measurement on detection efficiency calibration is carried out, the Au target material or the Cu target material in the first step is chosen to be placed above the end surface of a gamma detector, a 90Sr body source with known activity is used to be placed above the target material for measurement, detection efficiency epsilon is obtained, and the value is the ratio of a characteristic X ray energy peak count rate to 90Sr standard source activity; and (3) measurement and analysis on 90Sr in a sample are carried out, the to-be-measured <90>Sr sample is placed above the target material, the gamma detector is used for measuring the characteristic X ray energy peak count N, the 90Sr activity content A in the sample is obtained after calculation and A=N/( epsilon.t), wherein epsilon is the 90Sr detection efficiency in the sample, and t is the measurement time. The method of the invention is mainly applied to the field of 90Sr gamma energy spectrum analysis.

The invention provides a device and a method for measuring overall transmittance, reflectance and color of a hollow glass. The device comprises a transmitting device, a transmission component, a reflection component and a signal acquisition and processing unit. The hollow glass comprises at least two pieces of glass. A cavity is formed between two adjacent pieces of glass. The transmission component and the reflection component are correspondingly located on both sides of the hollow glass, the reflection component and the transmitting device are located on the same side of the hollow glass, the transmitting device is used for emitting a light beam, the transmission component is used for receiving a transmitted light beam passing through the hollow glass; the reflection component is used toreceive the light beam reflected by each piece of glass after the light beam passes through the hollow glass; the signal acquisition and processing unit is used for collecting electrical signals emitted by the transmission component and the reflection component correspondingly, and processes the electrical signals to get corresponding parameters. The device and the method for measuring the overall transmittance, reflectance and color of the hollow glass can realize overall measurement without disassembling the hollow glass structure, and avoids inaccuracy of the measurement result caused by oxidation of a film layer due to disassembly.

The invention discloses a heliostat light spot size measurement method and device, and the method comprises the following steps: S1, projecting a heliostat light spot to a target, obtaining an image, and determining the center coordinate of the light spot according to the zero moment of the gray scale of a graph in a target region; S2, according to the covariance matrix CXY of the image in the X direction and the Y direction, obtaining two feature vectors and feature values of the covariance matrix CXY, so that the long and short semi-axis directions and the axis length of an ellipse corresponding to a heliostat light spot are obtained; S3, based on the two feature vectors of the covariance matrix CXY and the feature values of the two feature vectors, obtaining the heliostat light spot size through measurement. According to the invention, a background image of the light spot not on the target does not need to be collected, the light spot measurement efficiency is improved, a noise filtering threshold does not need to be assigned manually, and the standard of light spot measurement is improved.

The invention relates to a folded pipe length measuring device and a using method thereof, the folded pipe length measuring device is used for measuring the length of a folded pipe connected to a pipe flange, and the folded pipe length measuring device comprises a supporting seat and a fixed seat connected to the supporting seat; a rotating assembly is movably connected to the interior of the fixing seat, and the rotating assembly comprises a flange positioning part used for fixing the flange and an angle gauge connected to the flange positioning part; and a fastening assembly which can be used for fixing the rotating assembly on the fixing seat. According to the folded pipe length measuring device, the connecting surface of the pipe flange is positioned through the positioning frame, and the probe rods on the angle adjusting assembly are respectively perpendicular to the plane where the other positioning frame is located, so that the distance between the center of the angle adjusting assembly and the contact surface of the positioning frame and the pipe flange can be measured by taking the central point of the angle adjusting assembly as a starting point, the measuring procedure is effectively simplified, and the measuring accuracy of the folding pipe is guaranteed.

The invention provides a method and a system for measuring the depth of an indium antimonide PN junction, in order to simplify the indium antimonide PN junction depth measurement process and reduce the measurement cost. The method for measuring the depth of an indium antimonide PN junction comprises the following steps: immersing an indium antimonide material with a PN junction structure formed into a corrosive agent for corrosion to form a corrosion slope; putting the corroded indium antimonide material into de-ionized water for cleaning and drying the corroded indium antimonide material; putting the dried indium antimonide material in an anodic oxidation device for anodic oxidation until the surface of the corrosion slope has different colors and two color areas are formed; putting the oxidized indium antimonide material into de-ionized water for cleaning and drying the oxidized indium antimonide material; measuring a first width of the corrosion slope and a second width of the colorareas at the top of the corrosion slope according to the boundary of the surface color of the corrosion slope; measuring the height of the corrosion slope by using a step instrument; and determiningthe depth of the PN junction according to the first width, the second width and the height of the corrosion slope.