635results about How to "Improve observation effect" patented technology

The invention discloses a method of electrolytically extracting and detecting fine inclusions in steel, belonging to the technical field of metal physical research methods. The method comprises the following technical steps of: using an organic electrolyte to carry out electrolysis on a steel sample; after electrolysis, washing the electrolyte mixed with the inclusions by absolute ethyl alcohol, and carrying out magnetic separation on the electrolyte by a magnet; separating the electrolyte after magnetic separation and collecting the inclusions by adopting a method of centrifugation by a centrifugal machine; putting the collected inclusions into a solvent easy to volatilize, carrying out ultrasonic dispersion on the inclusions by an ultrasonic cleaner, and then dripping a solution after ultrasonic dispersion on a carrier drop by drop by a trace pipette; and after the solvent volatilizes, putting the carrier which is distributed with the inclusions into a scanning electron microscope to analyze. The method has the advantages that the fine inclusions can be extracted in an undamaged way, the obtained inclusions are good in dispersion under a field of view of the scanning electron microscope, the shapes of the inclusions are perfect, and a good space statistic analysis result can be obtained so as to supply accurate data for a product.

The invention relates to a method for detecting cloud height by utilizing cloud shadow information in satellite remote sensing data, which pertains to the field of atmospheric exploration and comprises the following five steps: interpolation calculation, cloud and cloud shadow detection, the matching of the cloud with the cloud shadow by MODIS data, establishment of a cloud height model for obtaining the height of cloud layer, and cloud height calculation and analysis. The method for detecting the cloud height detects the information on the cloud and the cloud shadow in the remote sensing image data, matches the cloud with the cloud shadow by combining with digital image technology and obtains the distance between the cloud and the cloud shadow; and finally the cloud height model is established to obtain the height of the cloud layer. The method for detecting the cloud height can simultaneously calculate the heights of multiple points of a piece of cloud and the height values obtained in the way can greatly improve detection accuracy of cloud heights. The cloud height can be measured in any place where the measurement conditions are met and no measurement device is needed to be set locally.

The invention relates to an improved auto-disturbance rejection controlling method, and provides the improved auto-disturbance rejection controlling method to overcome the defect that a nonlinear auto-disturbance rejection controlling method has a plurality of parameters which are difficult to set. According to the improved auto-disturbance rejection controlling method, an extended state observer in a traditional auto-disturbance rejection controlling method is designed as a disturbance observer which is not based on a system model; the disturbance observer is designed to be only related to two parameters by using a linear auto-disturbance rejection controller parameter setting method, so as to achieve the purpose of reducing the amount of setting parameters. Moreover, the improved auto-disturbance rejection controlling method fully integrates the advantages and disadvantages of linear auto-disturbance rejection and nonlinear auto-disturbance rejection, so that the performance of the controller is maximized; the controlling method can reduce the error of the traditional auto-disturbance rejection controlling method, and improves the control accuracy of the system.

The method comprises: estimating the direction and distance that the sensor node should be moved by calculating the size and direction of virtual force loaded by each sensor node; driving the sensor node to make relevant movement until reaching a force-balanced point-namely realizing a distribution of sensor network node. By the invention, the sensor nodes can automatically move according to its located geographical environment.

The present invention discloses a nanometer material transmission electron microscope in-situ testing chip, a preparation method and applications thereof, and belongs to the technical field of nanometer material performance in-situ testing. The chip comprises a silicon substrate, insulating layers and a film window, wherein the insulating layer respectively grows on both surfaces of the silicon substrate, a metal film or device or a semiconductor function film or device grows on the chip front surface insulating layer so as to apply various physical and chemical effects on a sample, the center of the chip is provided with the film window, and the film window region is provided with a electron beam penetrating long hole or electron beam penetrating long groove having a large aspect ratio. According to the present invention, the transmission electron microscope sample can be subjected to in-situ measurement under the atomic scale resolution, the nano-wire samples and the nano-tube samples can be subjected to in-situ characterization, the bulk samples and the heterojunction interface samples can be subjected to in-situ characterization, the placement of the sample through the micro manipulator in the focused ion beam system and the laboratory can be achieved, and the sample transferred and fixed on the chip can be continuously processed by using the ion reduction equipment.

The invention relates to a ball camera could table, with self-clean function, which comprises a frame and a hemi-spherical transparent cover. Wherein, the frame has a cleaner used to clean the surface of transparent cover with pressure liquid; said cleaner is formed by a rotary arm and a driving device, while the rotary arm is rotationally mounted on the frame of said could table, whose one side that opposite to said transparent cover has washing through hole that through to tube; and said rotary arm and the transparent cover have working space. The invention can avoid dust, water, and frost, without hurting the surface of transparent surface.

The invention relates to a display visual angle adjusting device and an adjusting method thereof. The device comprises an image acquisition unit, a control unit and a driving unit, wherein the image acquisition unit, the control unit and the driving unit are successively connected; the image acquisition unit obtains a human face image and / or human body image before a display; the control unit, according to the human face image and / or the human body image, obtains an optimum observation visual angle and calculates the adjusting amount of the current observation visual angle of the display and the optimum observation visual angle; the driving unit, according to the adjusting amount outputted by the control unit, adjusts the display to be at the optimum observation visual angle; the driving unit comprises a connecting part hinged to the back of the display, a support connected with the connecting part, a base supporting the support, and a motor fixed on the connecting part for driving the display to rotate. According to the display visual angle adjusting device, an observer obtains better observation effects through the rotation of the display; the maloperation risks caused by visual fatigue of an operator is reduced; and the largest visual area and comfortableness can be obtained.

The invention relates to the light reflection material technology field and provides a micron order prism pyramid monomer and a manufacturing method thereof. The prism pyramid is capable of accommodating both the light flashing and light reflecting effects, and can exist independently without being attached to a carrier film. Only with adhesive glue, oil painting, hair glue and nail polishing oil and other colorless or colored transparent fluid or liquid media, it is possible to let the prism pyramid monomer to be attached on objects such as films, cloth, wires and plates requiring to be added with light or to realize light flash so that these materials can present the lighting effect. The monomer can be applied widely in great practical use, and the manufacturing method for the monomer is also simple and easy to implement. Therefore, with the method, batched monomer can be produced and used.

The invention discloses a sample preparation method for electron back scattering diffraction analysis of a thin steel and iron material. The sample preparation method comprises the following steps: (1) taking a small plate surface of the thin steel and iron material as a sample, grinding one surface of the sample to be flat by using sand paper, and taking the flatly ground surface as a surface A; (2) selecting a cylindrical body as a sample table, uniformly melting a proper amount of paraffin on the sample table, and sticking the sample onto the molten paraffin until the paraffin is solidified and the sample is fixed to the sample table; (3) grinding and polishing the surface A of the sample fixed on the sample table; corroding the polished sample in natal for 3-15 seconds; and (4) observing and analyzing the sample processed through the steps (1) to (3) in electron back scattering diffraction equipment. The method is used for preparing a high-quality EBSD analysis sample without residual stress; the observation effect and quality are relatively high, so that the method is very suitable for preparing the EBSD analysis sample of the thin steel and iron material with the thickness not exceeding 0.5mm.

The present invention relates to a single-pixel holographic camera, belonging to the field of holographic imaging. The working process of the system comprises the stages of recording and reconstruction. In the recording stage, the transformation matrix of a space amplitude modulating device is used to encode the Fourier spectral information of the Fresnel diffraction hologram of an object, the analysis and record of a time varying signal are completed by a single pixel intensity detection module, the corresponding measurement is carried out through changing the transformation matrix of the space amplitude modulating device for many times, and finally the compressed sensing imaging result of the Fourier spectrum of object Fresnel diffraction hologram is obtained. In the reconstruction stage, according to the selected encoding matrix, by using a minimization L1 norm algorithm, the recovery of spectral information is carried out, and the Fresnel diffraction hologram of the object is reconstructed through the Fourier transformation.

The invention discloses a finite time convergence unmanned ship cooperative controller design method. A finite time convergence unmanned ship cooperative controller comprises a finite time extended state observer, a finite time distributed path control guidance module, a nonlinear tracking differentiator, an anti-interference dynamic control module and a under-actuated unmanned ship. By introducing an artificial potential energy function into the design of a distributed path control controller, the invention designs a distributed cooperative path manipulation controller with collision avoidance, obstacle avoidance and communication maintenance so as to better adapt to the complex and changeable ocean situation in reality. The method is only based on position and yaw angle information and can realize unified estimation of uncertainty of an underactuated unmanned ship model and unknown disturbance caused by the complex sea conditions; and meanwhile, the characteristic of finite time convergence can make the cooperative controller obtain better observation effect and anti-interference ability, and the application range of an existing distributed cooperative path control controller isexpanded.

The invention relates to a supporting membrane of a transmission electron microscope sample and a manufacturing method for the transmission electron microscope sample. The supporting membrane of the transmission electron microscope sample consists of a porous micro-gate supporting membrane substrate and a single-layer graphene oxide film which covers the substrate, wherein the coverage density ofthe single-layer graphene oxide film on porous micro-gate is 0.7*10<-6>-14*10<-6> mg / mm<2>, 0.7*10<-6>-3.5*10<-6> mg / mm<2> preferably. The single-layer graphene oxide film can serve as a carrying membrane of the transmission electron microscope sample to manufacture the transmission electron microscope sample. The invention has the advantages that: the novel supporting membrane of the transmission electron microscope sample is designed and prepared; compared with the conventional carbon supporting membrane, the supporting membrane is smaller in thickness, stronger in mechanism strength and better in material dispersion effect; and the supporting membrane is used for carrying a material which is observed by a transmission electron microscope, so that higher resolution and higher definitioncan be obtained.

The invention relates to a method for displaying two-phase grain boundary of duplex stainless steel. The method comprises the following steps: I, preparation of a metallographic sample, namely, (1) cutting the metallographic sample by adopting a machining saw; (2) roughly grinding the observation surface of the sample; (3) mechanically polishing the observation surface of the sample by adopting a metallographic polishing machine; (4) finely polishing the observation surface by the metallographic polishing machine; (5) cleaning the observation surface of the sample with ethyl alcohol; II, preparation of a corrosive agent, namely, preparing a mixed solution from 10-15g of copper sulfate, 50 mm <3> of nitric acid with the volume percentage being 65-68% and 100-150 mm <3> of hydrochloric acid with the volume percentage being 36-38%; III, corrosion of the metallographic sample, namely, putting the metallographic sample into a metallographic corrosive agent, taking out the duplex stainless steel when the metallographic observation surface is corroded to be deep silver gray, cleaning the sample with water, and wiping the observation surface of the metallographic sample by degreasing cotton dipped with absolute ethyl alcohol. The method for displaying two-phase grain boundary of duplex stainless steel can be used for quickly, simply and conveniently displaying the two-phase grain boundary of the duplex stainless steel.

The invention provides a glass device for watching a display screen and relates to the technical field of glasses. The glass device for watching a display screen is provided with a bracket which can control the distance between the glasses and the display screen; one end of the bracket is provided with the glasses which can relax the adjustment and focusing of eyes; and the other end of the bracket is provide with the display screen or only a special component used for connecting or mounting the display screen device. The glass device solves the following technical problems: relaxing the adjustment of the eyes by making use of a far objective image of the glasses; and controlling the distance of the virtual image of the display screen and the glasses by controlling the distance between the glasses and the display screen through the bracket so as to achieve the aims of improving the observation effect, stably relaxing the adjustment and focusing of eyes, and making an observer feel comfortable and not fatigable. The glass device for watching the display screen can be used for preventing myopia or treating pseudomyopia.

The invention discloses a full-frame electronic image stabilization method based on feature matching, which belongs to the technical field of digital image processing and aims at eliminating influences on a video sequence by jitter such as camera translation and rotation and generating stable full-frame video output. The method comprises steps: firstly, an ORB feature descriptor is adopted to extract feature points in each frame, a two-level matching strategy with minimum and second minimum Hamming distance ratio judgment in combination with coordinate and direction angle difference test is used for matching feature points in adjacent frames; then, a motion parameter estimation method with triangle area similarity test in combination with RANSAC is used for estimating and accumulating inter-frame affine transformation parameters; and finally, an image mosaic technique is used for acquiring a motion compensation mosaic image, subjective motion parameters of the camera are estimated through Kalman filtering, a display window with the same size as the video frame is set on the mosaic image sequentially, and complete motion compensation frame output is obtained. Translation and rotation jitter in the original video sequence are effectively removed, and the stable full-frame output is obtained.

An insertion section for an endoscope has a distal end; a first imaging means for obtaining a first observation image; a second imaging means provided at the distal end and obtaining a second observation image; a first objective optical system provided at the distal end and collecting imaging light enters into the first imaging means; a second objective optical system provided at the distal end and collecting imaging light enters into the second imaging means; and illumination optical systems arranged at the distal end so as to individually position the first objective optical system and the second objective optical system between the illumination optical systems and applying light to a subject. By this construction, the amount of illumination light necessary for the plurality of imaging means can be distributed to sufficiently exhibit excellent observation performance.

The invention relates to a cooled three-field infrared thermal imager comprising an infrared optical system and a detector imaging assembly. F of the infrared optical system is 4, the narrow-field focal length of the optical system is 137mm, the medium-field focal length is 55mm, and the wide-field focal length is 23mm. The optical system comprises an objective lens, a zoom lens, a compensation lens, a rear fixed lens group and a convergence lens group, all of which are coaxially arranged in sequence. Field switching and focusing are implemented by axially moving the zoom lens and the compensation lens. The thermal imager can be applied to a complex environment. In any complex environment, the image contrast and detail resolution can be effectively improved, the effect of image observation can be significantly improved, and high precision in optical coaxiality, angular offset and optical axis consistency and high reliability in high- and low-temperature environments and vibration environments are realized. In addition, the thermal imager has a simple overall structure, the components of the thermal imager are not complicated, and the goal of low weight and small size is achieved.

The invention discloses an expendable air-sea flux buoy which comprises a micro weather station, a temperature and moisture measuring instrument, a supporting rod, an instrument control cabin, a core pulling floating ball and a counterweight. A cabin body of the instrument control cabin is arranged in the core pulling floating ball. The micro weather station and the temperature and moisture measuring instrument are arranged on the supporting rod above the instrument control cabin. The bottom end of the instrument control cabin is connected with the counterweight through a connecting rod. The instrument control cabin is internally provided with a hydrologic module, a wave module and a measurement and control unit. The upper end face of the instrument control cabin is provided with a satellite antenna. The expendable air-sea flux buoy floats along with flow, collects the meteorological parameters at an air-sea interface and the hydrologic parameters of the sea surface, calculates the air-sea flux and provides a novel observation method for observation and research of multi-scale air-sea interaction. The expendable air-sea flux buoy and an existing observation method are used in a combined mode, the observation capacity of the air-sea flux in the global ocean range can be greatly improved, and important datum support is provided for ocean disaster prevention and reduction, ocean environment guarantee, global climate change research and the like.

The invention belongs to the technical field of geotechnical engineering monitoring, relates to a method for observing the three-dimensional deformation of a side slope by utilizing circular marking points, and aims to provide a more convenient and effective side slope deformation monitoring method. A two-camera visual system is put forwards, and the three-dimensional deformation of the side slope is observed by marking circular feature points. A series of regular circular feature points marked on a slope of the side slope are shot in real time to obtain two-dimensional coordinates of all the marking points at every moment, and then the two-dimensional coordinates are matched in pairs to obtain three-dimensional space coordinates through a program. Therefore, the three-dimensional information of surface soil of the side slope can be obtained to realize displacement observation. According to the method, the circular marking points are creatively combined with the two-camera visual system, and the deformation of a surface layer of the side slope can be observed only by the simple marking of the circular points, the two-camera visual system and an image processing computer, so that the labor, material resource and time input of conventional methods is greatly reduced, and good and direct observation effects are achieved.

The invention discloses a paraffin slicing method of tree stem tissue, and belongs to the technical field of plant microscopic structure slicing. The paraffin slicing method of the tree stem tissue comprises the operations of tissue fixing, primary softening, dehydration, transparency, waxing, embedding, secondary softening, slicing, slice folding, slice gluing, slicing roasting, dewaxing, rehydration, dyeing, slice sealing and the like, wherein the addition of softening treatment can solve the problem that phloem, a forming layer and xylem in the stem tissue are easy to break in the slicing process due to inconsistent hardnesses. The softening treatment comprises the steps of firstly after the tissue is fixed, adding the operation of using ethyl alcohol / glycerinum mixed liquor to soften the tissue; secondly after embedding and coarse machining, adding the operation of using warm water to soak so as to soften the tissue to be sliced. Experiments demonstrate that a softened tissue can lower probability that the stem tissue is easy to break during slicing, and improve slicing success rate.

The invention relates to a stereomicroscope side lighting method and the dark-field stereomicroscope thereof. The method uses the beam emitted from the light source to lighting the observed sample from the side of the stereomicroscope stage, and the beam is satisfied the following characteristic: firstly,the beam and the observed sample are in a same plane spatial limit, secondly, the included angle between the beam and the symmetrical line O1O2 of the two object lens primary optic axis of the stereomicroscope is 80 to 100 degrees. The design consideration of the dark-field stereomicroscope which is an improvement for the traditional stereomicroscope, is enable the last light part directly emitted from the light source or through the optical instrument to change the direction to horizontally locate the observed sample stage, so that the symmetrical line O1O2 of the stage and the two object lens primary optic axis is arranged vertically. By using the method and the dark-field stereomicroscope thereof can effectively lighten the interference of the background light, greatly improve the contrast and the signal to noise ratio of the observed sample, especially fit for the liquid phase dissection observation.

In a bioinformation acquisition apparatus, a flux of light emitted from a test object through diffusion when the test object is irradiated with light can be reused, improving use efficiency of the radiated light. The apparatus has a light source for irradiating the test object with the flux of light, and a detector for detecting a signal output based on the radiation, and includes: a reflection-type polarization element adapted that at least a part of the flux of light from the light source can be transmitted through, and a flux of light emitted from the test object by the radiation can be reflected, in which the reflection-type polarization element is disposed at a position opposite to an irradiation area of the light on the surface of the test object to cover the irradiation area.

The invention discloses a preparation method for a gill tissue paraffin section. The preparation method comprises the following steps: fixing, decalcifying, dehydrating, transparentizing, carrying out paraffin permeation, embedding, slicing, sticking sections, expanding the sections, de-waxing and rehydrating, staining, re-staining, sealing and the like. Compared with an existing paraffin section manufacturing method, an operation process of dehydrating, transparentizing and immersing by wax is improved; the preparation fixing and tissue wax immersing effects of gill tissue paraffin are improved; a slicing problem when the gill tissue paraffin section is prepared is improved; the structure definition of the gill tissue section is greatly improved; a plurality of problems in a gill tissue manufacturing process in the prior art are solved. The preparation method is good for antigen positioning of immunocytochemical staining, so that when experiments including in-situ hybridization, immunohistochemistry, immunofluorescence and the like are carried out on the gill tissue paraffin section, tissue distribution and cell positioning of some genes and proteins can be displayed, and further feasible conditions are provided for carrying out gill research on levels of cells, genes and proteins.

The invention discloses a method for estimating the status of a brushless direct current motor based on an extended kalman filter. By means of the method, debugging difficulty is reduced and observation accuracy is improved under the conditions that system noises and measurement noises are non-zero mean white noises and errors exist in a system model. A measuring error covariance matrix R is regulated according to fuzzy rules, therefore, system debugging difficulty is reduced and accuracy is improved. Furthermore, an attenuation factor is added into a status updating equation, correction weight of the new observed quantity and the existing observed quantity on an estimated value is regulated, and tracking performance is improved. In addition, by means of a method of performing grouping regulation on a value of p (0), Q, serious distortion is controlled, and estimation accuracy of the extended kalman filter is improved.

The invention relates to a farmland greenhouse gas collecting device sealed by bidirectional silica gel rings and application of the farmland greenhouse gas collecting device. The gas collecting device comprises a static box and a base which are connected in an insertion manner, wherein the static box is a cylindrical structure with a sealed top, and the base is a cylindrical structure with openings in two ends; a grooved silica gel ring is arranged at the edge of the lower-end opening of the static box and circles the lower-end opening of the static box; a raised silica gel ring is arranged at the edge of the upper-end opening of the base and circles the upper-end opening of the base; the raised silica gel is embedded into the grooved silica gel ring; the edge of the lower opening of the static box is connected with the edge of the upper opening of the base through sealing fasteners. The farmland greenhouse gas collecting device sealed by the bidirectional silica gel rings is good in field in-situ observation performance, low in soil disturbance by the base, convenient to transport, easy to operate and suitable for multipoint and large-batch gas sample collecting of farmland.

The invention relates to an image viewing device, and especially relates to a radiology department adjustable image viewing device. The technical problem to be solved by the invention is to provide a radiology department adjustable image viewing device. The radiology department adjustable image viewing device includes a pedestal, wheels, a housing, an elevating mechanism, a pole, an observation frame, a lamp socket, bulbs and the like, wherein the wheels are arranged at the bottom of the pedestal; the housing is arranged at the top of the pedestal; the elevating mechanism is arranged in the housing; the pole is arranged in the housing; the pole is connected with the elevating mechanism; a first guide hole is formed in the top of the housing; the pole penetrates through the first guide hole; the observation frame is arranged at the left end of the top of the pole; the lamp socket is arranged at the right wall in the observation frame; and the bulbs are arranged on the lamp socket. The radiology department adjustable image viewing device achieve the effect of adjusting the angle and preferably assisting doctors, and has the advantages of being simple in operation, being convenient to use, and being high in promotional performance.

The invention relates to the technical field of marine observation and aims to provide a multi-node data synchronous acquisition system and method for real-time monitoring of underwater surface shapedeformation. The system comprises at least four array belts, wherein each array belt is formed by a plurality of strip-shaped rigid substrates connected through movable joints; on each rigid substrate, three sensor units are connected to slave station data acquisition units through cables, and the slave station data acquisition units are connected to a central processing unit through cables; the central processing unit comprises an outer pressure shell as well as an embedded controller and a power supply which are arranged inside, and after acquiring data from MEMS attitude sensors, each slavestation data acquisition unit transmits the data to the embedded controller. Synchronous acquisition of underwater and even seabed multi-node data can be realized, three-dimensional reconstruction ofthe surface shape is realized, and the system and the method can be used for improving the marine observation capability. A clock of a master station is taken as a clock source of the system, time synchronization in the system is realized in a form of I / O timing outputting of a clock synchronization instruction, and the problem about time synchronization of the system is effectively solved.

The invention provides a crystal preparation method and a crystal thereby. The method comprises the following steps: step 1, preparing a sodium chloride aqueous solution with a preset concentration from hot water with a preset temperature; step 2, adding an aluminum potassium sulfate crystal with a preset mass to the hot sodium chloride aqueous solution obtained in the step 1 and stirring the aluminum potassium sulfate crystal to be dissolved; and step 3, standing the system at a room temperature for a preset time to obtain a hollow pyramid-type crystal. The crystal has a hollow pyramid figure, has an open bottom and respectively has four inner sides and four outer sides, the four inner sides and the four outer sides of the crystal extend from the top of a pyramid to the bottom of the pyramid, and step corrugated structures are respectively arranged on the four inner sides and the four outer sides. The crystal preparation method precipitates crystal from two substances of sodium chloride and aluminum potassium sulfate, the obtained crystal has regular pyramid figure with attractive appearance and strong appreciation, and the preparation technology of the method is simple and easy and has strong operability.

A system and a method for generating three-dimensional image displays with two sensors, in particular two thermal imagers, having two optical channels with fields of view of equal size and with a virtually identical line of sight has at least one image reproduction unit. The optical axes of the sensors are aligned in parallel with one another. The sensors are each provided with a detector for a stereo recording, the stereo recording being performed simultaneously by means of the detectors.