353results about How to "Adapt to different needs" patented technology

The invention relates to a hoisting derrick specially for coiled tubing equipment. The hoisting derrick comprises a derrick transportation supporting platform, a derrick swinging base, a derrick telescopic boom, a first telescoping cylinder and second telescoping cylinders, which are connected with one another through rotation and articulation; the hoisting derrick is characterized by also comprising an injection head mounting platform, wherein lever arms are arranged on the injection head mounting platform, one ends of the level arms are fixedly connected with the injection head mounting platform, the other ends of the level arms are articulated with the plunger piston ends of the second telescoping cylinders, the cylinder body ends of the second telescoping cylinders are articulated with the derrick telescopic boom, and the level arms and the second telescoping cylinders are arranged in pairs and are arranged on two sides of the derrick telescopic boom respectively. The hoisting derrick has the beneficial effects that the injection head and an oil well can be centered rapidly, the labor intensity of workers is reduced and the mounting cost is reduced.

The invention discloses a complete degradation poly (lactic acid) spun-bond filament non-woven cloth, which is rolled and bonded by a fiber web which is paved with PLA fiber with average fiber fineness of 0.12 to 1mm. The mass per area of the cloth is 25 to 100g / m2, the thickness is 0.1 to 0.5mm, the longitudinal extensibility is 12 to 16percent and the lateral extensibility is 15 to 21percent. The invention also discloses a method of preparing the complete degradation poly (lactic acid) spun-bond filament non-woven cloth. The invention has good biological degradability and biological composing capability, and the physical mechanical performance is based on the traditional PET; the chips within the used molecular weight range are stable during the filament spinning process, have low sensitivity to the temperature changes, and the spinning continuity and stability are good; the invention is applicable in industrial operation.

The invention discloses a polyurethane resin compound ink and preparation method thereof, comprising polyurethane resin, chloride-vinyl acetate resin, solvent, dye and dispersing auxiliary, wherein the solvent comprises methyl benzene, butanone, isopropyl alcohol. The composition of the polyurethane resin compound ink is: polyurethane resin liquor (30% solid content) 25-40%, chloride-vinyl acetate resin 0-4%, dye 5-25%, dispersing auxiliary 0.2-0.5%, methyl benzene 0-20%, butanone 25-35%, isopropyl alcohol 5-15%. The invention provides polyurethane resin compound ink with wide application range, good thermal stability, good adhesion and no aromatics solvent, in order to conquer the lacks such as not environment protection, narrow application range and bad thermal stability.

The invention provides a composite material of environmental protection wall module, which mainly consists of a plant fiber, a self-made biomass adhesive, a moisture proofing agent, a biomass perfume etc., wherein the plant fiber comprises various crop straws and smashed sawdust which is cut into a length of 1 to 8 cm; the self-made biomass adhesive comprises a modified corn starch adhesive, a tapioca starch adhesive, a soybean crude protein adhesive and a trash for sugar beet processing; the moisture proofing agent is a calcium oxide; the perfume includes lavender, camphor tree particulate and argy wormwood. The wall consists of an internal wall surface and an external wall surface wherein the internal wall surface is abrasive, which is easy to ensure surface to be finished when in interior decoration; furthermore, the perfume such as the lavender, the camphor tree particulates and the argy wormwood etc. are added, so that a fragrance generated from the perfume gives out slowly when the wall is in use, and the goal of beautifying the indoor air environment and anti mosquitoes are achieved. The external wall surface is fine sand coated to form a smooth and rigid housing which can improve the strength of the surface and be good for ventilation of outer atmosphere. The production flow comprises straw pre-treatment, cutting off, batching, adhesive spraying, burden distribution, repressing, hot pressing and modular processing. The production process meets the integral idea of sustainable development, which is characterizes in the outstanding energy saving effect, the simple technology and the low cost. The material prepared has light weight, excellent environmental protection performance and outstanding water and fire proof performance. The production material has wide source, which is characterized by the high strength, good tenacity and excellent seismic behavior.

Disclosed is a touch-visual substitution system based on the electric stimulation, which belongs to the medical device technical field. In the invention, the acquired character and image information is transmitted to an image processing unit by an image acquisition unit; the image processing unit processes the image information pre-correction towards the acquired image, improves the image quality and then carries out the image information simplification, enhancement, encoding processing, so as to enable the image information to be converted into an electrical signal for a stimulator; the stimulator is controlled to generate multi-channel stimulation pulses with certain requirements according to the stimulation information; a stimulation electrode array acts on the human body skin to generate touch sense, and the stimulator provides certain adjusting function for users.

The invention discloses an active micromolecular ecological nutrition agent and a use method thereof. The nutrition agent is obtained by taking organic waste as the raw material, carrying out subcritical water treatment under 180-280DEG C and 1.2-7.5Mpa for 40-90min, and then performing solid-liquid separation. In a solid fertilizer, the content of organic matters is 70-90%, the content of total nutrients is 4-6%, the content of amino acid is greater than or equal to 20%, the content of humus is greater than or equal to 45%, the content of trace elements is greater than or equal to 0.5%, and the pH is 4-6. In a liquid fertilizer, the content of organic matters is 50-120g / L, the content of total nutrients is 500-950mg / L, the content of amino acid is greater than or equal to 10g / L, the content of humus is greater than or equal to 20g / L, the content of trace elements is greater than or equal to 200mg / kg, and the pH is 4-6. According to the use method, in addition to be used for topdressing, the solid fertilizer can be applied individually or mixed with other fertilizers, can be used for furrow fertilization, row fertilization, hole fertilization or spray fertilization and rotary tillage, and the dosage for every 666.67 square meters is 200-850kg. The liquid fertilizer can be used for flushing fertilization, jet fertilization, spray fertilization or drop irrigation with water, and the dosage for every 666.67 square meters is 20-200kg. The organic fertilizer involved in the invention has higher fertilizer efficiency and activity, can make fruit tree single fruit reach a weight gain of 7-15%, melons and fruits reach a yield increase of 10-20%, grains reach a yield increase of 5-16%, and vegetables reach a yield increase of 8-20%. Also, the quality, growth and soil indexes are improved, fertilizer consumption is greatly reduced, resources are saved and environmental protection is achieved.

An optical system of satellite-borne differential absorption spectrometer comprises a relay optical system and an Offner imaging spectrometer system. The relay optical system is composed of a relay reflector, relay lenses and a color separation filter. The Offner imaging spectrometer system is composed of an incident slit, a convex grating, and a concave reflector. The relay optical system uses the color separation filter to split a detection waveband to form four channels, which are focused by four groups of relay lenses to the incident slit of the spectrometer. Light at each waveband entersthe spectrometer from the incident slit of the spectrometer, is split by the convex grating, and has the light path turned and focused on a detector. The invention utilizes a relay reflector to turn the light path, and utilizes the color separation filter to split the detection waveband into four channels, to therefore improve the detection resolution of the system, ensure measurement accuracy and realize compact volume of the whole optical system. The Offner imaging spectrometer has excellent imaging spectrum performance and reduced distortion. The invention facilitates miniaturization and weight reduction of the whole system, and is suitable for space technology.

The invention relates to an audio / video intelligent catalog information acquisition method facing to a wide area network, belonging to the field of computer application, which is characterized in that a weighting algorithm based on position factors of keyword characteristic items is offered; different weighting factors are endowed to the characteristics of different positions in a file so that the theme similarity of webpage contents can be more accurately calculated; a link with higher theme similarity is optimally selected by comprehensively utilizing three aspects of the factors of the similarity of the webpage contents, the URL (Uniform Resource Locator) catalog level information of an ultra-link and the anchor text information of the ultra-link; the cataloguing information of the searched theme webpage is automatically extracted by adopting an information extraction method based on the body and HTML (Hypertext Markup Language); and the extracted cataloguing information is standardized by adopting an improved semantic similarity calculation method. The invention has the advantages that the description item information can be intelligently and automatically provided to a lister; the labor capacity of workers is reduced; the cataloguing efficiency is enhanced; and the method can adapt to different requirements of professional and non-professional listers and wide area network environment.

The present invention belongs to the technical field of 3D printing materials, and relates to a 3D printing gypsum ink, and the 3D printing gypsum ink is prepared from the following components by weight: 60% to 93% of gypsum powder, 2% to 20% of filler, 4% to 18% of a modifying solvent and 0.5% to 5% of a coagulant. The present invention also discloses a preparation method of the 3D printing gypsum ink, and all the raw materials are mixed and stirred evenly to obtain the 3D printing gypsum ink. The problems of low strength, poor mobility, coarse particles, poor toughness and high cost in the prior art can be solved, and an economical 3D printing forming material with industrial potential, high speed, good precision and low use cost is developed.

The invention provides a heat insulation and preservation fiber, and a preparation method and application thereof. The technical route of the invention comprises the following steps: premixing a polymer monomer or prepolymer for making a textile fiber chip material with heat insulation light material powder which is ground to a size demand and contains micron / nano pores; polymerizing the above premix according to a conventional polymerization method and process for the material; granulating the obtained polymer, and chipping to obtain a chip for a textile fiber of the heat insulation light material containing micron / nano pores; and finally, spinning the chip to obtain the heat insulation and preservation fiber containing micron / nano pore material granules. According to the invention, the preparation method of the heat insulation and preservation material is simple and easy to operate and mild in operating conditions; a fiber-wrapped micron / nano pore material structure is adopted, thus having favorable heat insulation and preservation effect; the raw materials for the material are accessible and low in cost; and the material has favorable performance in every aspect, is long in service life and can achieve considerable economic benefits.

The invention relates to a preparation method of a transparent mesoporous titanium dioxide hydrophobic / ultra-hydrophilic functional thin film. The method includes the steps of: 1) preparation of a precursor sol: diluting titanate in an alcohol solution, adding a stabilizer acetylacetone to prepare a solution A, dissolving a surfactant in the alcohol solution or a mixture liquid of alcohol and water to prepare a solution B, dropwisely adding the solution B into the solution A to prepare a mixed solution, regulating the pH value of the mixed solution to 2-5 and stirring the mixed solution until stable sol is formed; 2) coating of the sol: spray-coating a surface of a substrate with the sol, and performing thermal treatment to prepare the hydrophobic / ultra-hydrophilic titanium dioxide thin film. Through selection of different surfactants, different thin films having ultra-hydrophilic or strong-hydrophobic performances can be produced on the same production line through the same technology, so that the preparation method is suitable for different demands on products in large-scale industrial production. The thin film actually achieves the ultra-hydrophilic / strong-hydrophobic functions (a contact angle is less than 5 degrees or is more than 130 degrees).

The invention relates to a semiconductor device used for an SOI (silicon-on-insulator) high-voltage integrated circuit, belonging to the field of power semiconductor devices. The semiconductor device comprises a semiconductor substrate layer, a dielectric buried layer and a silicon top layer, wherein at least high-voltage LIGBT (lateral insulated gate bipolar transistor), NLDMOS (N-type lateral double-diffused metal-oxide semiconductor) and PLDMOS (P-type lateral double-diffused metal-oxide semiconductor) devices are integrated in the silicon top layer; the thickness of the dielectric buried layer is not more than 5 mum; the thickness of the silicon top layer is not more than 20 mum; multiple incontinuous high-concentration N<+> regions (doping concentration is not lower than 1e16e cm<-3>) are formed at the bottoms of the high-voltage devices and the silicon top layer above the surface of the dielectric buried layer; the high-voltage devices are isolated by dielectric isolation regions; low-voltage MOS (metal oxide semiconductor) devices can also be integrated in the device; the high-voltage devices and low-voltage devices are isolated by the dielectric isolation regions; and different low-voltage devices are isolated by field oxidation layers. The semiconductor device has the advantages that: because of the introduction of the multiple incontinuous high-concentration N<+> regions, the electric field of the silicon top layer is weakened and the electric field of the dielectric buried layer is enhanced at the same time, the breakdown voltage of the device is greatly improved, and the device can be applied in high-voltage integrated circuits in the automobile electronics, consumption electronics, green lighting, industrial control, power supply management, display driving and other fields.

The invention relates to the field of mobile portable devices and discloses a resource scheduling method for a mobile terminal and the mobile terminal. The resource scheduling method for the mobile terminal comprises the steps of presetting a resource configuration scheme corresponding to a running mode of the mobile terminal; determining the resource configuration scheme corresponding to the current running mode of the mobile terminal according to the current running mode of the detected mobile terminal; and scheduling resources of the mobile terminal by utilizing the determined resource configuration scheme corresponding to the current running mode of the mobile terminal. The invention furthermore discloses the mobile terminal. According to the method and the mobile terminal provided by embodiments of the invention, reasonable allocation of various resources in the mobile terminal is realized, so that the resource waste is reduced.

The invention discloses an acute spinal cord injury animal model modeling impactor, which is characterized by comprising a bracket, a lever, a guide rail, a probe and a relay device for driving the lever. A support point of the lever is arranged on the bracket; one end of the lever is provided with a sucking disc, the other end is connected with the upper end of the probe; the relay device and the guide rail are both fixed on the bracket along a vertical direction; the relay device is arranged above the sucking disc; the probe is arranged in the guide rail along the vertical direction; a return spring is arranged between the upper end of the guide rail and the upper end of the probe; the relay device comprises a multiple-turn coil and an iron core; the iron core is inserted in the multiple-turn coil; and the terminal of the multiple-turn coil is connected with a controllable current output interface of an external circuit. The impact degree and time of the impactor can be controlled, the impact position is more correct, and the repeatability of the impact operation is strong.

The present invention discloses a radiator snap-fit device, which comprises a resist pressing component. One end of the resist pressing component extends outward horizontally and is provided with a joint part. The present invention also comprises a continue component which is placed above the joint part, a connection component which is rotationally connected with the continue component, a bolt and a screw component. A chute is arranged in the middle of the connection component. The bolt is slipping arranged in the chute and fixed on the joint part. The screw component comprises a first screw and a second screw. A male screw which is respectively rotated and matched with the continue component and the joint part and is in the opposite screw direction is arranged on the first screw and the second screw. The opposite screw structure of the screw component is capable of adjusting the screw degree between the screw component and the continue component and the resist pressing component. So the distance between the continue component and the resist pressing component is controlled to select the volume of snap-fit force and to be suitable for different requirements.

The invention discloses a method for slice deployment born by a network arrangement layer of an intelligent power grid. The method is characterized in that the method comprises the steps: dividing a network arrangement layer of the intelligent power grid into a path module, a weight module, and a utility module, wherein the path module determines the number of paths between a source node and a destination node according to a network topology structure, and stores the traversed paths in a matrix by establishing a path storage matrix; the weight module dynamically adjusts the weight of the neural network by using a momentum gradient descent algorithm according to the requirements of different types of power businesses for weight indexes, and trains the neural network by using test data; theutility module uses the path stored by the path module; scores of all paths corresponding to to-be-processed businesses are expressed by applying a utility function, and the path with the highest utility score is selected, and slice deployment borne by a network arrangement layer of the smart power grid is completed, and reasonable distribution of intelligent power grid resources is met, and various requirements of various types of businesses are met, and the service quality is improved.

The invention relates to a composite ceramic fiction material of potassium hexatitanate / sodium hexatitanate whisker belonging to the material technical field, wherein the composite ceramic fiction material comprises 5-20 parts of organic resin, 1-10 parts of rubber powder, 10-40 parts of potassium hexatitanate and sodium hexatitanate whisker, 0-5 parts of aramid fiber, 10-20 parts of graphite and 20-40 parts of filler. The composite ceramic fiction material of the invention doesn't contain asbestos without harming the human body and polluting the environment, which has superiorities in eliminating braking noise and heat degeneracy, improving using life of the product, overcoming adhesive occlusion among friction couples and the like.

The invention discloses an epoxy adhesive for an electron component integrated molding technology and a preparation method of the epoxy adhesive. The epoxy adhesive comprises the following components in parts by weight: 30-70 parts of epoxy resin, 1-10 parts of curing agent, 1-10 parts of accelerator, 20-40 parts of solvent, and 0.1-5.0 parts of additive. Compared with the prior art, the epoxy adhesive is capable of satisfying the demand of an integrated molding process, and well adapting to different requirements of a new process in comparison with the traditional adhesive; the adhesive has high body strength, high modulus, high Tg, and high bonding strength, and is high in reliability. The epoxy adhesive is capable of satisfying the production process demand of the integrated molding process of the electron element and has higher reliability.

The invention relates to an improved sorting learning method for software defect prediction, which comprises the following steps of: extracting a metric element and a corresponding defect number froma source code file with a known defect number as training data; preprocessing the training data; using the preprocessed training data to construct a prediction model; using a multi-objective optimization algorithm to optimize the sorting performance of the model at the same time; obtaining a group of model parameters according to the model parameters, the regression performance and the model complexity, then selecting appropriate model parameters according to actual needs, or giving corresponding weights to the sorting performance, the regression performance and the model complexity of the model according to the actual needs, and then obtaining the model parameters by using a single-objective optimization algorithm; and analyzing the test data by using the trained model to obtain defect information of the corresponding software module. The sorting performance, the regression performance and the model complexity of the model can be optimized, and different requirements under different application scenes can be better met.

The invention discloses a metal slicer, comprising a frame, a sliding mechanism, a driving system, a cutter body component, a material pressing mechanism and a material feeding mechanism; the sliding mechanism is arranged on the frame; the cutter body component is fixed on the movable part of the sliding mechanism; the power output terminal of the driving system is coupled on the cutter body component and drives the fixed part of the sliding mechanism to linearly reciprocate; the material pressing mechanism tightly presses the basic material to be processed in the cutting process of the cutter body component; the material feeding mechanism leads the basic material to be fed with arranged step distance in the material-loosening stage when the material pressing mechanism releases the basic material to be processed. When the fin of a heat exchanger is processed by using a metal slicer which adopting the technical proposal of the invention, the cost is lower and the efficiency is higher compared with those adopting numerical control processing center.

The invention discloses a monocular camera and millimeter wave radar external parameter calibration result accuracy evaluation method. A plurality of metal balls are arranged in a scene, after data information of the metal balls in all coordinate systems is converted, statistics and comparison calculation are completed, and four indexes describing the accuracy of an external parameter result are obtained, and two indexes are in a camera image plane and two indexes are in a radar point cloud space.

The invention discloses a solid-liquid phase change material melting heat transfer performance parameter testing system and a method thereof. The system comprises a phase change material container, a liquid phase material expansion port, an expansion tube provided with a liquid level sensor, a heat insulation sleeve, an analog-to-digital converter and a computer; a solid-liquid phase change material is contained in the cavity of the phase change material container, the top of the symmetrical center of the phase change material container is provided with the liquid phase material expansion port, the liquid phase material expansion port is connected with the expansion tube provided with the liquid level sensor, the expansion tube provided with the liquid level sensor is wrapped by the heat insulation sleeve, a liquid level simulation signal of the liquid level sensor is transmitted into the analog-to-digital converter in real time, and a data signal derived by the analog-to-digital converter is transmitted to the computer. Automatic measurement, operation and display of the melting rate, the integral heat exchange coefficient and other key heat transfer performance parameters of a phase change material in an internal non-visual container can be realized within a certain precision range through reasonable hypothesis and strict derivation based on volume expansion data in the solid-liquid phase change melting process.

The invention relates to an intelligent hanger suitable for various mounting needs and used for an unmanned aerial vehicle. The intelligent hanger comprises a hanger body, a sensing device, a controldevice, and a vehicle / hanger communication device, wherein the hanger body comprises a case and a case cover arranged on the top of the case and capable of opening; the unmanned aerial vehicle is in the case in standby, and the case cover is opened in work, such that the unmanned aerial vehicle flies out from the top of the case; the sensing device is used for sensing a position, in the hanger, ofthe unmanned aerial vehicle as well as a position and an external environment, above the hanger, of an external unmanned aerial vehicle, and transmitting sensed information to the control device; andthe control device comprises terminal equipment which is in communication and control connection to the unmanned aerial vehicle and the hanger body through the vehicle / hanger communication device. The intelligent hanger is strong in adaptability, can realize fully-automatic work, provides more in-hanger guarantee for the unmanned aerial vehicle, has certain vehicle / hanger integration degree, andsupports cluster use and intelligent scheduling.

The invention relates to a cloud computing-based identity authentication fusion method. The method comprises a first step in which a client confirms authentication terminal equipment according to the choice of a user; a second step in which the request data are automatically encrypted and packaged by the client; a third step in which the client sends the request data to an application server; a fourth step in which the application server forwards the received request data to an authentication server; a fifth step in which the authentication server judges whether the user exists, if yes, the sixth step is carried out; a sixth step in which the authentication server continues to judge whether the user authentication data are correct or not, if yes, the seventh step is carried out; a seventh step in which the authentication server returns the authentication result to the application server; an eighth step in which the application server judges whether to provide corresponding application service according to the given condition, if yes, and the ninth step is carried out; and a ninth step in which the authentication server records the application execution result from the application server in the database. Compared with the prior art, the cloud computing-based identity authentication fusion method ahs the advantages of effectively solving the contradictory situation between security and convenience of the network identity and the like.

The invention relates to the technical field of decorative lamps, in particular to a light string convenient to disassemble. The light string comprises a power adapter and a light string group which is connected with the power adapter and formed by a plurality of lights by series connection, wherein lights are detachably connected; each light comprises a main body, a first joint connected onto themain body and a second joint which is arranged on the main body and is in corresponding inserting connection with the first joint, every two adjacent lights are connected through the first joint andthe second joint, and the lights are detachably connected to the power adapter through the first joints. By means of the corresponding inserting connection of the first joints and the second joints, the lights are connected in series, so that the light string with different light numbers is formed by combination; by means of combination of the multiple lights, different lengths of the light stringcan be realized, different demands are met, and the light string has quite high practicability.

The invention discloses a novel method for effectively extracting lentinan, wherein lentinus edodes sporophores or lentinus edodes stems are taken as a raw material, a subcritical water extraction technology is adopted, coarse lentinan is obtained after the processes of ultrafiltration concentration, ethanol precipitation and decolorization drying, protein is removed by anion exchange resin, and the purity of the refined lentinan can reach above 90%. By utilizing the method, the extraction period is greatly shortened, the active ingredient activity is maintained to the maximum extent, the extraction efficiency can be obviously increased; and moreover, compared with other extraction methods, the method has the advantages of no toxity, no harm, energy conservation and environmental friendliness as well as wide application prospect.

The invention discloses a portable strong crossbow which comprises a crossbow support, a crossbow frame, a gripping handle, a trigger mechanism and an ejection mechanism. The crossbow support is fixedly connected with the rear end of the crossbow frame, a sliding groove is formed in the crossbow frame along the ejection direction, the gripping handle is fixed on the lower portion of the crossbow frame, and the trigger mechanism is arranged on the position, at the front portion, of the crossbow frame. The ejection mechanism comprises a left elasticity plate, a right elasticity plate, and a shear type telescopic mechanism, wherein the left elasticity plate and the right elasticity plate are arranged symmetrically, the rear end of the left elasticity plate and that of the right elasticity plate are fixed on the rear portion of the crossbow frame, the front of the left elasticity plate and that of the right elasticity plate are movably connected with the shear type telescopic mechanism, the shear type telescopic mechanism is connected on the crossbow frame through a rear hinge pin hole and a rear hinge pin, a front hinge pin is arranged in the front hinge pin hole, the shear type telescopic mechanism is installed in the sliding groove through the front hinge pin, and the upper end of the front hinge pin is connected with an arrow pushing stop dog. The lower end of the front hinge pin is connected with the trigger mechanism in a locking mode when the shear type telescopic mechanism retracts. The portable strong crossbow has the advantages that a firing range and a hit rate of the crossbow are improved, and operation is enabled to be more convenient.

The invention belongs to the field of solar panels and particularly relates to a solar panel deployment limiting mechanism. The solar panel deployment limiting mechanism comprises a rotating shaft, afixed hinge and a moving hinge. One side of the fixed hinge and one side of the moving hinge are provided with shaft holes respectively, and the rotating shaft penetrates the shaft holes in one side of the fixed hinge and the shaft holes in one side of the moving hinge to be connected with the fixed hinge and the moving hinge. Torsional springs sleeve the rotating shaft, a torsional spring arm atone end of each torsional spring is connected with the moving hinge while a torsional spring arm at the other end of each torsional spring is a free end, each free end is abutted against the fixed hinge after the moving hinge rotates around the rotating shaft to expand, and the fixed hinge and the moving hinge are provided with limiting bosses for limiting after deployment. The solar panel deployment limiting mechanism is easy in assembly, low in component quantity, simple in structure, light in weight, small in size and high in reliability.

The invention discloses an optical system of a large-field wide-band airborne differential absorption imaging spectrometer, which comprises a front telescopic imaging system and an Offner-Littrow spectral imaging system, wherein the front telescopic imaging system mainly comprises a front ultraviolet objective lens; the Offner-Littrow spectral imaging system specifically comprises an optical filter, an incident slit, a convex grating and a concave reflector; the front ultraviolet objective lens consists of three independent front lenses according to detection wavebands (200-276 nm, 276-380 nm,380-500 nm), and the field of view of each lens reaches 40 degree. The Offner-Littrow spectral imaging system is also independently composed of three spectrometers according to the above wavebands. Each waveband light is focused from a front lens and enters the incident slit of the spectrometer, three groups of spectra to be detected enter the spectrometer through the optical filter at the rear end of the incident slit of the spectrometer, the corresponding spectral information is reflected by the concave reflector and then is split by the convex grating, and the light path is turned to the concave reflector and then focused on a detector. According to the optical system of the large-field wide-band airborne differential absorption imaging spectrometer, the measurement accuracy is ensured, and the whole optical system is compact in size.