70results about How to "Reduced Uniformity Requirements" patented technology

The invention provides a full-automatic laminating production line of transformer E-type iron cores. The full-automatic laminating production line comprises a three-column feeding device and a three-column transmission positioning device which are set to be a straight line along a side column feeding direction, and a yoke column feeding device and a yoke column transmission positioning device which are set to be a straight line along a yoke column feeding direction, wherein the straight line where the three-column transmission positioning device is is vertical to the straight line where the yoke column transmission positioning device is; a material receiving output device is arranged between the three-column transmission positioning device and the yoke column transmission positioning device; a three-column laminating device and a yoke column laminating device are arranged above the planes where the three-column transmission positioning device and the yoke column transmission positioning device are; the three-column laminating device and the yoke column laminating device are positioned on the same straight line, and are at the same position of the straight line where the three-column transmission positioning device is; one side of the material receiving output device is connected with an overturning device; and the material receiving output device and the overturning device are positioned on the same plane. The full-automatic laminating production line is time-saving, labor-saving, compact in structure and high in efficiency, the adjustability of a transformer window and step quantity can be realized, and the universality is high.

The invention discloses a three-dimensional surface topography measurement device based on one-dimensional Dammann grating. A one-dimensional Dammann grating is inserted between a collimated laser source and a measured object, and the measured object and a reference surface are placed on a Fourier transform plane of a collimating lens. A charge coupled device (CCD) receives structured light reflected by the object, and the imaging relative distance of reflecting points of the reference surface and the actual object surface on a CCD target surface is used for determining the relative distance between the reflecting point of the object surface and the reflecting point of the reference surface. The Dammann grating is used for equally dividing the light intensity of the light source into multiple parts so as to acquire high spatial resolution at the same time of realizing multi-point scanning. Moreover, because the relative distance of diffraction spots of each level of the Dammann grating is strictly fixed, the rotating error of a vibrating mirror during single-point scanning is furthest reduced. The device has high measurement precision and spatial resolution, greatly improves the scanning efficiency, and has important practical significance.

The invention discloses a backlight module and a liquid crystal display device. The backlight module comprises a light source, a light guide plate and a reflector plate; the light guide plate comprises an incident surface, a bottom adjacent to the incident surface, an emergent surface which is adjacent to the incident surface and opposite to the bottom, and a plurality of sides; the light source is arranged on one side of the incident surface of the light guide plate; the reflector plate is arranged on one side of the bottom of the light guide plate; the other side of the bottom of the light guide plate is provided with a microstructure which damages a light total reflection condition; one side of the reflector plate connected with the bottom of the light guide plate is provided with a reflection unit with a nonuniform reflection property; and the liquid crystal display device comprises a liquid crystal panel and the backlight module and the backlight module provides plane light required by the liquid crystal panel. The reflection unit with the nonuniform reflection property is arranged on the reflector plate, so that more light nearer to the light source is absorbed or is transferred in the same direction, and further the light is, higher diffusion degree is and the emergent light ray insufficiency of the emergent surface is compensated. The invention can effectively reduce the uniformity requirements of light guide plate.

The method involves providing extrapolation rule and extrapolated time associated with intended value of a master sensor to be predetermined on basis of the extrapolation rule. A first synchronization signal is transmitted to a slave sensor when the extrapolated time occurs and delay time different from the extrapolated time in a temporally defined manner occurs. Recording of slave sensor value is triggered by a first synchronization signal. The intended value and the slave sensor value are provided as connected value tuple. An independent claim is also included for a sensor measuring system.

The present invention provides a high-speed area array camera axis system traverse vibration measuring device and the traverse vibration measuring method thereof. The measuring device comprises an initial mark which is arranged on the common visual field of two high-speed area array cameras on the measured axis, two high-speed area array cameras which are arranged in one vertical plane with primary optical axes becoming a certain angle, two high-speed area array cameras are aligned to a same segment of the measured axis and are approximately with the measured axis, and the two high-speed area array cameras is connected to the data processing and control unit and the human-machine interaction interface. When the axis rotates the imaging surface of two high-speed area array cameras respectively catch a group of upper-and-lower edge wires of the measured axis varying continually, and two traverse vibration components at random place of the segment of the measured axis can be obtained by the middle line of the upper-and-lower edge line; and with the method of orthogonal synthesizing the traverse vibration state and axial center track at random place of the segment of the measured axis can be obtained. The invention has the advantages of convenient actualizing, relatively simpler picture signal, no sensitivity to the light intensity or gray scale, no high requirement to the light source and high measurement precision.

The invention discloses the technical field of water treatment, and particularly relates to a spacer member in an electrodialysis device. An electrodialysis spacer comprises a board frame, a water distribution flow passage, liquid guide holes and a board-core grid, wherein half of the liquid guide holes are elliptical, and half of the liquid guide holes are semi-elliptical, connected with the water distribution flow passage and communicated with the inner cavity of the board frame; the elliptical liquid guide holes are arranged at one end of the board frame; and the board-core grid is distributed in the inner cavity of the board frame. The electrodialysis spacer has the advantages that the flow capacity can be improved and the resistance is reduced in the water flow process; and the electrodialysis spacer has the characteristics of being good in elasticity, resistant to strong acid, strong base and organic solvent, easy to seal and good in leak tightness.

The invention discloses a two-port tunable thin film filter (TFF) optical filter. The filter comprises a tunable optical filter unit, a wavelength detection unit and a control unit, wherein the tunable optical filter unit partially feeds input signal light back to the wavelength detection unit; the wavelength detection unit is connected with the tunable optical filter unit, detects the power change condition of the received signal light and outputs the condition to the control unit; and the control unit is connected with the wavelength detection unit, determines the drift condition of the central wavelength of output light through the power change condition of the output light of the wavelength detection unit, and corrects a tuning controller connected with the control unit. The filter has a simple structure and a built-in wavelength feedback structure and can completely eliminate influence caused by unstable light source power; symmetrical optical paths are adopted, so that all wavelengths and incident angles can completely compensate polarization mode dispersion caused by an optical path difference; the tuning performance of a device is improved; and the filter has the function of optical signal monitoring modules such as the Optical Society of America (OSA), an optical wavelength manager (OWM) and the like.

The invention belongs to the technical field of lithium batteries, and particularly discloses a preparation method of a multi-tab battery cell, the multi-tab battery cell and a multi-tab battery thereof. The preparation method comprises the following steps of S1, coating active slurry: evenly coating the surface of a pole piece with the active slurry in a zebra coating mode and rolled, and preparing a first pole piece; S2, slitting the pole piece: slitting the first pole piece to obtain a second pole piece; s3, performing die cutting on tabs: cutting the edge of the second pole piece to form a plurality of first tabs; s4, tab cleaning: cleaning the dressing area of the first tab; S5, tab dispensing: performing dispensing treatment on the first tab; and S6, winding and/or laminating the second pole piece and the diaphragm to obtain the multi-tab battery cell. During coating, the requirement for alignment of single-face and double-face coating is lowered, so that the requirement for the processing capacity of the previous procedure is lowered, the total slitting frequency is reduced by half compared with that of a traditional mode, the accumulated tolerance of the length size of the pole piece is reduced, the die cutting and winding precision is improved, and the overall energy density of a battery cell is improved.

The invention discloses a rapid field breeding method of aphidius gifuensis. The breeding method comprises the following steps of place selection, aphid inoculation host crop selection, space layout, time selection, cultivation measures, aphid breed inoculation, bee breed inoculation and post-processing. The problem that technical requirements of traditional aphidius gifuensis breeding are high is effectively solved, a good parasitism place is provided for aphidius gifuensis breeding, the middle links of inoculation are greatly simplified, the uniformity requirements of inoculation are reduced, the aphidius gifuensis breeding speed can be also multiplied, individual development is good, accordingly the artificial aphidius gifuensis breeding efficiency is greatly improved, and the labor and material costs are reduced.

The invention provides a processing method and device of friction spinning negative Poisson's ratio yarn of a front tension structure. The processing device comprises a short fiber yarn feeding and drafting mechanism used for feeding short fiber coarse yarn and drafting and carding the short fiber coarse yarn to make the cohesive force of the fiber increased; a tension structure forming mechanismused for carding the short fiber coarse yarn after being drafted and opened, also utilizing a shaping mechanism template to form the shape of the tension structure and shaping the short fiber coarse yarn under the thermal effect to form the tension structure of the short fiber coarse yarn and a twisting and winding mechanism used for twisting the tension short fiber yarn and winding the tension short fiber yarn on a spool. The method can used for spinning short fiber, recycled, opened or recycled fiber of waste fabric or blended fiber of the recycled, opened or recycled fiber of waste fabric.The processing method and device have the advantages that the formed yarn has an obvious tension effect and is stable in structure, and meanwhile, the raw material is low in uniformity requirement, wide in selection range, convenient to implement, low in cost and applicable to continuous production and application and popularization.

The invention relates to a paper defect detection method based on the local brightness invariance priori, which comprises the following steps of 1, photographing the surface of paper to be detected byusing a color area array camera, and capturing a frame of color image with a pixel format of RGB components; 2, carrying out nonlinear graying operation on all pixels of the color image in the mask of the convolution template by using a convolution template with local brightness invariance priori, and finally obtaining pixels corresponding to the convolution window; according to the 1*1 convolution operation and the 3 * 3 convolution operation, obtaining two gray level images respectively; 3, carrying out corresponding position pixel division on the two grayscale images to obtain a grayscaleimage; 4, performing 3 * 3 Fourier convolution operation on the grayscale image; 5, performing gradient morphological operation on an operation result; 6, performing thresholding processing to obtaina paper defect detection result. According to the present invention, a common light source and an area array camera can be used for detecting paper defects, and a detection system is low in complexity, high in accuracy and low in cost.

The invention discloses a preparation method of an N type heterojunction two-sided solar battery. The preparation method comprises the following steps of S1, providing an N type silicon wafer substrate; S2, performing two-sided texturing on the N type silicon wafer substrate; S3, forming an n+ lightly doped layer on the front surface of the N type silicon wafer substrate; S4, performing corrosionand cleaning on the back surface of the N type silicon wafer substrate; S5, forming a front surface intrinsic amorphous silicon layer and an N type doped amorphous silicon layer on the n+ lightly doped layer on the front surface of the N type silicon wafer substrate through a process step in sequence; S6, forming a back surface intrinsic amorphous silicon layer and a P type doped amorphous siliconlayer on the back surface of the N type silicon wafer substrate through a process step in sequence; S7, forming TCO thin films on the front surface and the back surface of the N type silicon wafer substrate; and S8, forming a positive electrode on the back surface of the N type silicon wafer substrate, and forming a negative electrode on the front surface thereof. By adoption of the method, a high surface passivation effect can be obtained, the problem that utilization of a window layer of a solar battery front surface is suppressed in the prior art can be solved, and the conversion efficiency of the battery can be improved.

The invention discloses a device for medical cosmetology of skin by utilizing the focusing of a binary grating, which comprises an optical filter, an aperture diaphragm, and a focusing element consisting of a binary Dammann grating and a Fourier transform lens, wherein the optical filter, the aperture diaphragm and the focusing element are orderly positioned on an emitting light path behind an external light source and are all placed perpendicularly to an optical axis; light emitted from the light source passes through the optical filter to remove parasitic light with unneeded wavelengths in the light source; then a light beam is adjusted through the aperture diaphragm; and then the adjusted light beam is incident to the focusing element and forms a periodical light spot array through the coaction of the binary Dammann grating and the Fourier transform lens to act on skin of a human body, thereby utilizing focusing light spots to realize the medical cosmetology. The device has the advantages that the device has simple structure and low cost, is convenient to carry, can meet the needs of small-sized hospitals even individuals and families, and is convenient to popularize.

The invention discloses a step-by-step calibration system and method applied to a microwave radiometer of an unmanned airborne phased array antenna. The system comprise a noise diode, matching loads,a power divider and calibration switches, wherein the number n of the calibration switches is consistent with the number of subarrays of the phased array antenna; the calibration switches are single-pole three-throw switches; one path of input of each calibration switch is connected with one path of H polarization signal output by each subarray of the antenna; the noise diode provides a high-temperature signal needed for calibration, and n paths of signals are output to one input of input of each calibration switch through the power divider; each calibration switch is externally connected witha matched load, and a normal-temperature reference signal needed for two-point calibration is provided; three states of each calibration switch correspond to ground observation, high-temperature noise source observation and matching load observation respectively; and during operation, a beam control device controls the calibration switches to be switched according to a predesigned time sequence,and the ground observation and the two-point real-time calibration of different subarrays are completed within each scanning period.

The invention relates to a rheological evaluation method of polyethylene for medical instruments. The method comprises the steps that a sample of the polyethylene for the medical instruments is placed on a hot press through a mold and pressed into a standby test sample wafer after the sample is completely melted under control of a certain temperature, pressure and time; the sample wafer is placed on a stain control type rheometer fixture, a rheological characteristic value is tested by setting the specific test parameters such as the temperature, the applied strain, the rotating frequency, the point getting mode and the integration time of the rheometer and related to the important properties such as molecular weight and molecular weight distribution of the polyethylene for the medical instruments, and accordingly, the quality of the polyethylene for the medical instruments is quickly evaluated. The evaluation method is fast, easy and convenient to operate, efficient, low in cost and high in precision, the uniform requirement for the sample is low, no environmental pollution is generated, and the application value is achieved in the industrial production detection process.

The invention provides an air conditioner drain pipe and a coiling method for the air conditioner drain pipe. The air conditioner drainage pipe includes a pipe body, the first end of the pipe body is provided with a first butt joint pipe section, the second end of the pipe body is provided with a second butt joint pipe section, and the pipe body has a winding and passes through the first butt joint pipe section and the second butt joint pipe section. Fixed packing status for butt joints of pipe segments. The air conditioner drainage pipe in the present invention does not need to be fixed with pipe clamps during the packaging process, but is directly connected and fixed through the first butt joint pipe section and the second butt joint pipe section, which can effectively reduce the packaging cost of the air conditioner drainage pipe and prevent The air conditioner drain pipe is deformed and scattered during production, storage and transportation. During packaging, the requirements for the flatness and uniformity of the air conditioner drain pipe are reduced, and there is no need to use equipment coils, and there is no hidden danger of damage to the air conditioner drain pipe during operation. .

The invention relates to the field of gas flow detection, in particular to a gas flow measuring device and method based on an ultrasonic bypass flow principle and belongs to the field of novel metering instrument measurement. The device comprises a main pipeline and a bypass flow pipeline. The main pipeline is communicated with the bypass flow pipeline, the bypass flow pipeline is located on the side face of the main pipeline, a current blocking part is arranged in the main pipeline, a current limiting channel is formed, and an ultrasonic sensor is arranged in the bypass flow pipeline. A detection gas way is formed by the main pipeline, the bypass flow pipeline and the current blocking part jointly. By means of the method of flow division on the main pipeline, the current blocking part is arranged in the main pipeline, the monotone increasing relationship between the time difference value and the standard flow in the bypass flow pipeline is determined, the gas flow is tested, water and corrosion problems can be effectively solved, and accurate measurement of large-pipe-diameter gas flow can be achieved.

The super resolution reflecting film structure for read only CD includes the first protecting layer, super resolution reflecting film and the second protecting layer, and features that the protecting layers are made of SiN and the super resolution reflecting film is made of Sb, Si or Ti. The super resolution reflecting film structure realizes the read-out of super resolution information recording dots mainly on the non-linear optical effect caused by the reversible phase change of the super resolution reflecting film material between the crystal state and the amorphous state. The super resolution reflecting film of the present invention has the advantages of obvious non-linear optical effect, quick response, high dynamic read-out S/N ratio, etc. Experiment shows that the present invention can realize read-out of super resolution information recording dots.

A detection method for quickly determining the melt index and weight-average molecular weight of fiber-type polypropylene special materials: first, the known and to-be-measured fiber-type polypropylene special materials with melt index and weight-average molecular weight are made into test samples; then the known The test samples of melt index and weight average molecular weight are respectively placed on the fixture of the strain-controlled rheometer, and the zero-shear viscosity η of the fiber-type polypropylene special material with known melt index and weight average molecular weight is measured ₀ , so as to determine the scale relationship between the melt index and weight-average molecular weight of the fiber-type polypropylene special material and the zero-shear viscosity; The zero-shear viscosity η of the fiber-type polypropylene special material whose melt index and weight-average molecular weight are to be measured ₀ ; Finally, through the fiber-type polypropylene special material melt index and weight average molecular weight and zero-shear viscosity η ₀ The scale relation calculated its melt index and weight average molecular weight.