150 results about "Plain film" patented technology

Examples of the present invention include high electric energy density polymer film capacitors with high dielectric constant, low dielectric dissipation tangent, and low leakage current in a broad temperature range. More particularly, examples include a polymer film capacitor in which the dielectric layer comprise a copolymer of a first monomer (such as tetrafluoroethylene) and a second polar monomer. The second monomer component may be selected from vinylidene fluoride, trifluoroethylene or their mixtures, and optionally other monomers may be included to adjust the mechanical performance. The capacitors can be made by winding metallized films, plain films with metal foils, or hybrid construction where the films comprise the new compositions. The capacitors can be used in DC bus capacitors and energy storage capacitors in pulsed power systems.

Examples of the present invention relate generally to high electric energy density polymer film capacitors with high charge-discharge efficiency and fast discharge speed. For example, a high energy density polymer capacitor may be fabricated using a polymer blend comprising one or more high dielectric constant PVDF-based polymers (including homopolymers, copolymers and / or terpolymers) and one or more other polymer with low dielectric loss and high volume resistivity compared to the one or more PVDF-based polymers. An example film capacitor may comprise a high temperature fluoropolymer with dielectric loss lower than 0.2% and good film manufacturability. Polymer films can be stretched and orientated at least in one direction to make thinner films with improved performance. Film capacitors can be made by winding metallized films, plain films with metal foils, or using a hybrid construction where the dielectric films comprise the new compositions. Capacitors can also have a multilayer construction where the films are metallized.

The invention relates to an on-line dose modulation method of an X-ray CT (Computed Tomography) machine, which comprises the following steps: scanning plain film data, extracting Z-direction attenuation information of a human body, and calculating the attenuation area of the human body in each cut film along the Z direction; according to the attenuation area, calculating the average X-ray dose in each cut film to form a dose distribution curve along the Z direction, and supplying to a user as an initial recommended value, so that the user can adjust the dose distribution in the Z direction as required; scanning a patient, and simultaneously carrying out on-line estimation on the attenuation value of the rotation direction of the patient to obtain an attenuation estimated value; combining the dose distribution in the Z direction with the attenuation estimated value of the human body in the rotation direction to calculate a bulb tube mA value; transmitting the mA value to a high-pressure system, and carrying out high-frequency dose adjustment; and finishing the on-line dose modulation process if the scanning is completed. The invention reduces the overexposure and underexposure possibly caused by assuming sine laws. Besides, the invention does not assume that what passes through the central passage is the maximum attenuation, so that the dose modulation is better matched with the shape of the actual object.

The embodiment of the invention discloses a plain film scanning method and device. The plain film scanning method comprises the steps that a scanning agreement is selected and a scanned part is obtained; a scanning length corresponding to a first predefined scanning list is searched for according to the scanned part; scanning parameters corresponding to a second scanning list are searched for according to the physical sign information of a person to be scanned and the scanned part; the plain film scanning dose is set automatically according to the searched scanning length and the scanning parameters, and then scanning is carried out. According to the plain film scanning method and device, the plain film scanning dose and scanning range which are matched with the person to be scanned can be determined automatically according to the physical sign information of different persons to be scanned, plain film scanning efficiency is improved, the scanning dose is saved, and injury, caused by scanning, to a patient is reduced.

The invention provides a medical image focus detection positioning method and device, an electronic device and a storage medium. The method comprises the following steps: registering a medical image template to a to-be-detected medical image to obtain a registration transformation relation, and mapping anatomical position information in the medical image template to the to-be-detected medical image according to the registration transformation relation to obtain anatomical position information corresponding to different pixel points in the to-be-detected medical image; then, the abnormal shooting suspected focus in the bone whole body gamma plain film image is intelligently detected. Therefore, a suspected focus area in the to-be-detected medical image is automatically detected; Anatomicalposition information corresponding to a suspected focus area is intelligently provided, and auxiliary diagnosis of suspected focus properties by clinicians is facilitated by combining image characteristics such as contrast and shape of a suspected focus and referring to other related information such as inspection and clinic of a patient.

The invention discloses a liquid metal-cooled focus type solar energy thermionic generating set, which comprises a thermionic generating module, a sunlight concentrator positioned above the emitter electrode of the thermionic generating module, and a liquid metal radiator. The liquid metal radiator comprises a heat conducting plain film contacted with the low temperature end of the generating module directly, and an electromagnetic pump arranged in a channel in the a substrate of an electromagnetic pump, wherein the electromagnetic pump consists of a pair of permanent magnetic sheets flatly arranged on the upper and lower surfaces of the substrate of the electromagnetic pump and a pair of electrode plates arranged on the two opposite walls of the channel in the substrate of the electromagnetic pump; the planes of the pair of the electrode plates are vertical to the planes of the pair of the permanent magnetic sheets; lead wires of the electrode plates are electrically connected with aphotoelectric battery; and a hollow runner in the heat conducting plain films, the channel in the substrate of the electromagnetic bump and a hollow runner in the radiation substrate of a finned radiator which are communicated are filled with flowing liquid metal. The device is a self-sustained adaptive high-efficiency solar energy generating device without any moving component, and has the advantages of simple structure, high reliability, convenient maintenance, low noise, energy saving and cleanness.

The invention discloses a method for preprocessing a robust skeletal age evaluation image and positioning a skeletal key point. The method comprises the following steps: step 1, preprocessing a skeletal age X-ray plain film image: selecting a sub-sampling point, fitting a background image by a linear regression method, removing a background of the skeletal age X-ray plain film image, and extracting a target part which is a palm outline image; step 2, performing noise removal processing on the palm outline image obtained in the step 1; and step 3, positioning the skeletal key point in the palm outline image processed in the step 2 by a K cosine method. In the traditional method, the skeletal age is manually decided, the subjective factors of a decider are excessive, and the pressure load is overweight, so that the traditional method is not beneficial for objectively and fairly measuring the skeletal age. According to the method, the preprocessing effect of the skeletal age X-ray plain film image is enabled to be optional and have great robustness, the requirements of operators photographing the skeletal age films on a photographed person is reduced, and the method has great adaptability to skeletal age images.

The invention provides a pantoprazole sodium enteric-coated tablet, which consists of the following components in parts by weight: 1 part of a pantoprazole sodium plain film, 0.1-0.5 part of an isolating layer and 0.5-1 part of an enteric-coated layer, wherein the isolating layer consists of hydroxypropyl methylcellulose and an alkali in the weight part ratio of 1:5-5:1; and the enteric-coated layer is prepared from 0.5-1 part of acrylic resin. The invention provides a preparation method of the pantoprazole sodium enteric-coated tablet. Parameters such as spray speed, spray pressure, the rotating speed of a coating pan and the like are improved through process parameters of the isolating layer, an enteric liquid and a coating, so that the prepared pantoprazole sodium enteric-coated tablet has high acid tolerance and dissolution rate, the acid tolerance of a finished product is over 90 percent, the dissolution rate is over 75 percent, and the pantoprazole sodium enteric-coated tablet is accordant with and superior to the requirements of the Chinese Pharmacopoeia on the enteric tablet. The product has the advantages of stable quality, convenience for storing and transporting and contribution to clinical application. The method is simple, is suitable for industrial production, and has high application value.

The invention relates to a method for manufacturing a handicraft, in particular to a method for manufacturing a wheat straw handicraft, which comprises the steps of: a. firing a green body with a shape the same as that of the handicraft; b. treating wheat straw raw materials: soaking the wheat straw in sterilizing lotion and soaking the wheat straw in water containing soda after being dried; fumigating the wheat straw with sulphur and then steaming the wheat straw in a pressure cooker or a steamer; bleaching and dyeing the wheat straw with oxydol and dye respectively; cleaving the wheat straw with a knife blade, back-scrolling the wheat straw and then placing the scrolled wheat straw for a certain time; spreading the scrolled wheat straw and scraping inner pulp; ironing the wheat straw into a plain film with an iron; and pressing the wheat straw plain film with a soldering iron to cause the plain film change color slightly; c. cleaving the wheat straw into filaments and cutting on the bias; or gluing the wheat straw into plain film; d. gluing the filaments and the plain films to the green body; and e. glazing the green body. The wheat straw handicraft manufactured by the method resists moisture, does not mildew or fade, can be preserved permanently, and presents stereo perception.

The invention relates to a cascading semiconductor thermoelectric power generation device cooled by liquid metal, comprising a cascading semiconductor thermoelectric power generation module and a liquid metal radiator positioned at one side of the module, wherein the liquid metal radiator comprises heat conduction plain films directly touching with the low-temperature end of the power generation module and an electromagnetic pump installed in a conduit in the substrate of the electromagnetic pump. The electromagnetic pump is composed of a pair of permanent magnetic sheets laid on the upper surface and the lower surface of the substrate of the electromagnetic pump and a pair of electrode plates installed on the two opposite walls of the conduit in the substrate of the electromagnetic pump. The planes of the electrode plates are vertical to the planes of the permanent magnetic sheets, and the lead wires of the electrode plates are electrically connected with batteries. Flowing liquid metal are filled in the hollow channels in the communicated heat conduction plain films, the conduit in the substrate of the electromagnetic pump and the hollow channel in the heat dissipation substrate of the fin-type radiator. The power generation device is a self-maintenance adaptive type high-efficiency low-grade thermal power generation device without a moving part and has the advantages of simple structure, high reliability, convenient maintenance, low noise, energy saving and environmental protection.

The invention provides a method for recovering sapphire substrates for solving the problems in the prior art that the production cost of sapphire substrates is high and the substrates cannot be reused. According to the method, the wet etching is cooperated with physical high-temperature roasting, and a special corrosive liquid can remove gallium nitride particles and ordinary residues and has obvious removing effect of refractory metal residue and surface oil contaminant. The method can be used for recovering PSS substrates and plain film substrates in a sustainable manner, and has the advantages of short recovery period, simple operation and low cost. Through the operation procedures, each piece of sapphire substrate can reach the level of a first-use substrate, the quality epitaxial wafer is produced, and the recovery cost of a single piece needs only 10 yuan.

The invention discloses a diode pumped solid state laser (DPL) and a debugging method therefor. The diode pumped solid state laser comprises a semiconductor pumping source, a coupling system, laser crystals, a bi-color plano-convex cylindrical surface totally-reflecting mirror, reflecting laser, a polarizing film, a quarter-wave plate, a pockels cell, and a plano-concave cylindrical surface output mirror, wherein the semiconductor pumping source is used for outputting pumping light; the coupling system is used for transmitting and homogenizing the pumping light, and coupling the pumping light into the laser crystals; the laser crystals are used for providing gain; the bi-color plano-convex cylindrical surface totally-reflecting mirror is arranged between the coupling system and the laser crystals and used for transmitting the pumping light and reflecting laser; the polarizing film is used for polarizing the laser; the quarter-wave plate is used for rotating the polarization direction of the passed laser for 45 degrees; when the pockels cell is not applied with voltage, the pockels cell is equivalent to a plain film; when the pockels cell is applied with quarter-wave voltage, the pockels cell is equivalent to the quarter-wave plate; and the plano-concave cylindrical surface output mirror is used for outputting laser. According to the diode pumped solid state laser provided by the invention, the repetition frequency of the pumping light is improved, the pumping light interval is shortened, the power density of the pumping light is improved; and in addition, the diode pumped solid state laser is small in divergence angle, so that the ranging or imaging distance is improved, and the application range is expanded.

The invention discloses a vibration conduction sheet device for a bone conduction loudspeaker. The vibration conduction sheet device comprises a plain film body, wherein the plain film body is provided with multiple circles of intermittent annular holes; rib connecting parts are arranged among each circle of annular holes, so that the annular holes are spaced intermittently; and the rib connecting parts of adjacent circles of annular holes are arranged in a staggered way. The vibration conduction sheet device of the bone conduction loudspeaker is provided with multiple circles of annular holes, so that a vibrating plate can be displaced more greatly, high sensitivity is realized for the bone conduction loudspeaker, and the output power of vibration and sound is increased. Moreover, balanced axial reciprocating movement of the vibration conduction sheet can be realized in a non-deviated way without special processing accuracy, so that a good tone quality is achieved.

The method of keeping image noise consistence in Z-axle direction of CT system includes the following steps: experiment determining the noise characteristic of CT system and obtaining noise list; experiment determining the effects of other scanning condition on noise; plain film scanning to obtain plain data; calculating based on user's option; calculating current; and scanning with the calculated current. The present invention estimates the noise level of CT image effectively via FROI process, lays the foundation for comparing noise in different CT image, and adopts equivalent attenuation diameter process to describe image noise-current relation precisely. The method can keep the image noise consistence in Z-axle direction of CT system while reducing the X-ray dosage on the patient effectively.

The invention relates to a metal honeycomb energy-gathering air-saving burner for a gas stove. The burner provided by the invention comprises a burner body, an injection tube, and a gas mixing chamber, wherein the inner cavity of the upper part of the gas mixing chamber is provided with a metal honeycomb infrared burning plate which is formed by a strip-shaped plain film and a strip-shaped ripple film through staggered stacking or winding or twining, the inner ring and outer ring of the metal honeycomb infrared burning plate are provided with fixed rings. The burner provided by the invention is characterized in that the strip-shaped plain film and the strip-shaped ripple film have molded bent structure in the height direction, the shape of the fixed ring is matched with that of a surface contacted with the metal honeycomb infrared burning plate; the middles of the bent structures, in the height direction, of the strip-shaped plain film and the strip-shaped ripple film are provided with at least more than 1 local bent part, and the bent structures are integrally bent from top to bottom. Based on the structure, the burner provided by the invention has the advantages that the safety performance is better, and the service life is long.

The invention relates to a manufacturing method of a septum device, belonging to the technical field of pressure measuring. The method comprises the following steps: a processed round metal plain film is fixedly connected with a processed septum junctor, an upper septum junctor and a lower septum junctor are connected in a sealing way, the round metal plain film is punched by pressure medium and is jointed with a function surface on the septum junctor under the pressure action of the pressure medium to generate tension set; a function surface completely coinciding with the function surface on the septum junctor is formed on the round metal plain film which is shaped as a metal film with waviness; the metal film is provided with a function surface completely coinciding with the function surface on the septum junctor, the junctor has accurate positioning and accordant die space and especially plays the role of overvoltage protection, so the metal film cannot be damaged in overvoltage, thereby the pressure propagation precision of the septum device is enhanced. The invention also provides a septum device and a septum pressure gauge.

The invention provides a scanning method. The method comprises the steps that historical plain film data of an examined object is extracted; the historical plain film data comprises a historical plain film obtained by positioning scanning conducted on the examined object, a historical scanning range during positioning scanning conducted on the examined object and the historical distance between the examined object and a first reference object; in the current scanning period, the current distance between the examined object and a second reference object is obtained; based on the historical distance between the examined object and the first reference object, the current distance between the examined object and the second reference object and the historical scanning range, the current scanning range of the current scanning period is determined; based on the historical plain film and the current scanning range, the examined object is scanned. The invention further provides medical equipment which can execute the scanning method.

The invention discloses a solder applying method on the metal carrier flat sheets used for catalyst, which is as follow: zonal nickel-base brazing materials are respectively seam-welded on the upper surface and the lower surface of the flat sheet of the inner core of the metal carrier used for catalyst, wherein, the length direction is parallel; the seam-welded zonal nickel-base brazing materials are bound and welded on the flat sheet of the inner core of the metal carrier, thereby the arrangement of the brazing rods on the inner core of the metal carrier is ensured. The method is particularly suitable for making S-shaped metal carrier. When making the S-shaped metal carrier, the flat sheet and the corrugated sheet for seam-welding the brazing rods are cut into the given length, and then are stacked alternately and finally coiled to form the S-shaped metal carrier. The method has the advantages of high productivity, low production cost and stable quality.

The invention discloses a bone fault image reconstruction method and system. The method comprises the following steps of S1, obtaining a three-dimensional bone CT image template; S2, generating a local two-dimensional bone gamma plain film image template; S3, matching the whole body bone gamma plain film image to obtain the most matched local two-dimensional bone gamma plain film image; S4, further optimizing the three-dimensional bone CT image template, and enabling the two-dimensional bone gamma image template corresponding to the three-dimensional bone CT image template to completely cover the region of interest of the local bone gamma image; s5, reconstructing a quantitative local bone gamma tomography image based on the template; and S6, carrying out fusion display on the local bone gamma tomography image and the CT tomography image. By means of the method and system, the level close to the quality of a tomographic image obtained through conventional SPECT tomographic acquisition and reconstruction can be achieved after fusion, a doctor can analyze and diagnose the tomographic image more visually, clinical examination is conducted on part of patients, extra tomographic acquisition is avoided, and efficiency is improved.

The invention discloses an intraoperative preset area positioning method and device, a storage medium and electronic equipment, and the method comprises: obtaining a medical three-dimensional image ofa preset area, and carrying out the extraction of an ROI (region of interest) of the medical three-dimensional image; acquiring a plurality of two-dimensional projection plain films with different angles of the ROI in an operation; generating an ROI and an area mask corresponding to each two-dimensional projection plain film according to the plurality of two-dimensional projection plain films with different angles, the medical three-dimensional image and the deep learning network model; and performing three-dimensional space mapping on the region masks of the ROI in the plurality of two-dimensional projection plain films with different angles and the plurality of two-dimensional projection plain films with different angles, and generating three-dimensional positioning information of the ROI in the operation so as to position a preset region. According to the intraoperative preset area positioning method and device, the storage medium and the electronic equipment, accurate three-dimensional positioning can be achieved, the problem that in the prior art, the dosage of conventional operation positioning is too high is solved, and the requirement for accurate, convenient and efficientpositioning in an operation is met.

The invention discloses a method of measuring the clearance between metallic bodies by using a capacitive sensor. The method adopts a plurality of preset metallic calibrated test pieces which are marked with the clearance between existing metallic bodies, and the capacitive sensor with a plain film type capacitance probe. The capacitive sensor comprises an insulated thin plain film and a metallic slice which is arranged on the lower end face of the thin plain film as a capacitance pile piece. The plain film type capacitance probe is inserted into the clearances of the metallic calibrated test pieces one after another to calibrate the one to one coincidence relation between the known clearances between metallic bodies and the test data of the capacitive sensor. In actual measurement, the calibrated coincidence relation and a linear computation mode are used to calculate the corresponding clearance value of actual measuring data, so that the measuring value of the clearances between metallic bodies is gained. Compared with the method adopting the prior technology, the method is characterized by quick detection speed and high detection precision.

The invention relates to a safe pen type blood taking needle, comprising a sheath, an outer cylinder, a needle seat, a needle tube, a spring and a blood stopping sleeve, wherein the lower section of the needle seat is provided with a spring supporting platform, and the periphery of the needle seat is provided with a disc which is connected with the platform by utilizing a cross bridge; the inner edge of the disc is also provided with a pair of arc plain films protruding towards an axle center, and the outer edge of the disc is also provided with a pair of fins expanding downwards and outwards; the front end of the outer cylinder is provided with a conical head, an inner hole of the conical head is communicated with an intracavity of the outer cylinder, a pair of arc stand columns extending into the cylinder is arranged at the inner hole wall of the conical head facing towards the inner side of the cylinder, and an extroversion curling edge is arranged at the bottom of the stand columns; the inner wall of the lower section of the outer cylinder is provided with an annular protruding ridge; and the arc plain films can be embedded with the extroversion curling edge at the bottom of the arc stand columns so that the spring is compressed in the intracavity of the conical head by the needle seat. After blood-taking is completed, a blood taking tube is necessarily and deeply inserted, a cap stopper of the blood taking tube ensures that the arc fins and the arc plain films which are arranged at the lower section of the needle seat are expanded outwards to disengage the clamping of the extroversion curling edge, the needle seat is released, and the spring is returned to drive the needle seat and the needle tube to be shrunk into the cylinder. The annular protruding ridge at the lower section of the outer cylinder prevents the arc fins from sliding down so that the needle seat and the needle tube are hidden in the intracavity of the outer cylinder.

The invention relates to an image processing method and device, electronic equipment and a storage medium, the method and device can be applied to chest plain film processing, the method comprises thesteps: acquiring a to-be-processed image, wherein the to-be-processed image comprises a chest film image; performing disease classification processing on the to-be-processed image, and determining adisease category corresponding to the to-be-processed image; and according to the image processing mode corresponding to the disease category, performing image processing on the to-be-processed imageto obtain a processing result of the to-be-processed image. According to the embodiment of the invention, the disease detection accuracy can be improved.

The invention discloses a method for preparing a plain-film filter membrane of a membrane bioreactor used in treatment of industrial sewage. The method comprises: dissolving polymer membrane material in solvent; adding with additive and evenly stirring; adding with pore-forming agent and evenly stirring so as to prepare casting solution; after filtering and vacuum defoamation of the casting solution, blade-coating the casting solution on polyester non-woven fabrics; and after being stood in air for a period of time, soaking the polyester non-woven fabrics in gel bath for gel curing, and preparing the plain-film filter membrane. The filter membrane prepared by the method simultaneously has the characteristics of strong tolerance, pollution resistance, high pure water flux, high rejection rate and the like. When the filter membrane is used to prepare MBR series membranes in 0.25, 1.0 and 1.5 square meters, the MBR series membranes can be used for industrial sewage treatment, and the effluent quality is better than the PRC Integrated Wastewater discharge Standard (GB / 8978-1996).

The invention relates to a hydraulic former for a plain film-coated building circular template, which comprises a square frame type machine frame. A hydraulic cylinder is installed at the upper end of the frame; a convex mold is installed at the lower end of the hydraulic cylinder in the frame; a concave mold is fixedly installed at the lower end of the machine frame corresponding to the convex mold; and both the convex mold and the concave mold are of hollow structures and are full of hot liquid media. The invention has the beneficial effects that by adopting the hydraulic transmission control, automatic production is realized; the hydraulic former has the advantages of scientific and reasonable design, easiness for processing and convenience in operation, the production efficiency is effectively improved, the labor is saved, and the labor intensity of operators is reduced; and moreover, the produced circular template is high in standardization degree and good in quality and is not required to be adjusted again when being installed by a constructor, so that the later construction is facilitated, and the construction cost can be reduced.

The invention discloses an optical-cement polarized beam splitting prism, which is characterized by comprising a pair of isosceles trapezoid glass prisms with 45-degree base angles and a glass plain film which are both made of general optical glass. The bottom surfaces of the isosceles trapezoid glass prisms with 45-degree base angles in pair are coated with the same polarized beam splitting film, and the glass plain film with two surfaces polished is arranged in the middle in optical cementing mode, thereby forming a sandwich structure. The structural order is: glass / polarized beam splitting film / glass / polarized beam splitting film / glass. The optical-cemented polarized beam splitting prism has a high damage threshold and a high extinction ratio, is low in cost, simple in structure, convenient to process and easy to manufacture in batches.

The invention provides a scanned image reestablishment method and device. The method includes the steps that an auxiliary scanning condition is obtained; the auxiliary scanning condition is utilized to conduct auxiliary scanning on an examined body, and an auxiliary image is obtained; when it is determined that main scanning is conducted based on the auxiliary image, a first main scanning condition is obtained through the auxiliary scanning condition, the first main scanning condition is utilized to conduct main scanning on the examined body, and a main image is obtained. By means of the scanned image reestablishment method and device, auxiliary scanning is added between plain film scanning and main scanning, quality of the main image can meet the diagnosis requirement, therefore main scanning conducted on the examined body repeatedly can be avoided, and extra scanning radiation conducted on the examined body is avoided.

Embodiments of the present application provide an image processing method, apparatus, computer device, and storage medium for intracerebral hemorrhage. The method comprises the following steps of: acquiring a CT plain film scanning image of cerebral hemorrhage in a Cartesian coordinate system, and taking the CT plain film scanning image as an original image, wherein, the original image comprises askull contour; Constructing a non-Cartesian coordinate system based on the skull contour, converting the original image into a new image in a non-Cartesian coordinate system, wherein the new image isexpanded along the skull contour in the non-Cartesian coordinate; Bleeding location and bleeding type are detected by the new image. Embodiments of the present application process images of intracerebral hemorrhage to provide a new angle for detection of intracerebral hemorrhage, facilitate the determination of bleeding location and bleeding type of intracerebral hemorrhage, and improve the accuracy of detection of intracerebral hemorrhage.

The invention discloses a full visual field low frequency heterodyne point diffraction interferometer. An acousto-optic frequency shifter is adopted to shift phase by heterodyne interference so that moving members of the interferometer are avoided, and measurement accuracy is further increased. The interferometer has good anti-interference performance, reduced development difficulty and cost, and compared with mechanical drive, the interferometer has more obvious advantages. Two optical fibers are used to respectively generate measuring light and reference light instead of part of emitting light; the interferometer combines the advantages that optical fiber point diffraction light is easy to access and flexible to adjust; compared with typical optical fiber point diffraction interferometer system, the measurement value aperture diameter range is increased. Besides, beam combination of point diffraction measurement light and reference light is realized by gluing angle ground fiber tips with light splitting plain films, wherein the beam combination is realized through outer sides of the semi-transparent and semi-reflection plain films, interference of diffraction opening edges on wave front of convergence light spots is avoided. The interferometer is easy to operate and has low cost.

The invention relates to a micropump being easy to assemble, and relates to equipment of motor driven and transferring gas. The micropump is provided with a motor, a cylindrical base, an eccentric wheel with an oblique cutting hole, a steel needle, an umbrella type connecting rod with three clamping holes, an air cylinder plate with three air cylinder holes, a piston body with three air inlet valve pieces and three hollow pistons, an air chamber press plate with three exhaust holes, an upper cover with an exhaust pipe and three air outlet valve pieces, wherein a connecting part can enable the three air outlet valve piece to connect with a row of air outlet valve piece groups; the connecting part is provided with a triangular plain film or three starlight pattern bulges, and three top angles of the connecting part are respectively connected with one air outlet valve piece; and the air outlet valve piece groups are arranged in the inner space between the upper cover and the air chamber press plate, and three air outlet valve pieces in the air outlet valve piece groups respectively cover corresponding exhaust holes on the air chamber press plate. The micropump can avoid the phenomenon that one air outlet valve piece is not installed on a place in an assembling process, and even the phenomenon that one air outlet valve piece is leaked.