91results about How to "Solve miniaturization" patented technology

The invention discloses a lake mandarin fish scale culturing method, comprising feeding efficiency, defecation rate, excretion rate, standard metabolism, SDA, activity metabolism and fish physical ability value and growth sub-model. The growing conditions and the bait consumption rate of the piscivorous fish after stocking can be predicted by the model; water body is taken as the research site, the time and space distribution characteristics, the biomass, the structure of the main population, the population growth trends of the growth period, the bait base and tropic niche width and competition overlapping of the advantageous small-sized fish in the shallow water reeds lakes are systematically researched, thus establishing the quantitatively acquiring method of the small-sized fish in theshallow water reeds lakes, completing the productivity analysis and measurement of the advantageous population of the small-sized fish in the shallow water reeds lakes, and estimating the sustainableproduction capacity of the lake bait fish.

The invention aims to provide a heterodromous medium-based splitting type resonator which comprises two resonant cavities, negative magnetic conductivity media and feeder lines, wherein the two resonant cavities are connected together, and upper covers of the resonant cavities are provided with through holes; the through holes are provided with the feeder lines; and the negative magnetic conductivity media are arranged in the resonant cavities. The invention is convenient to change the resonant frequency of the resonant cavities according to different practical requirements, has certain flexibility and is simple and convenient to manufacture and process.

The invention discloses a portable laser deruster. The portable laser deruster comprises a laser system, a light beam adjusting system and a conductive fiber. The laser system is connected with the light beam adjusting system through the conductive fiber. The laser system comprises a main case, a laser device, a control plate and an output mirror, wherein the main case is provided with straps, and the laser device is located in the main case. The corresponding output end of the control plate is connected with a data interface of the laser device. The output end of the laser device is provided with the output mirror. The light beam adjusting system comprises an optical isolation channel and an optical reshaping probe. The optical isolation channel comprises an optical channel shell and an isolation sleeve, wherein the optical channel shell is provided with a handle, and the isolation sleeve is arranged in the optical channel shell. A clamping ring is arranged at one end of the optical channel shell, and the other end of the optical channel shell is connected with the optical reshaping probe. A beam expansion mirror, a scanning galvanometer and a light condensation system are sequentially arranged in the optical reshaping probe in the direction from the junction between the optical reshaping probe and the optical channel shell. The light condensation system comprises a mirror bracket, an F-Q field lens ring and an F-Q lens. The portable laser deruster has the advantages of being simple in structure, convenient to use, safe, and stable, thereby being beneficial to field operation.

The invention relates to a movable skid-mounted natural/coal bed gas adsorption and purification system with an external medium heat exchange function, which comprises an adsorption tower system and a heat conduction medium heating circulation and cooling circulation system. The adsorption tower system consists of three adsorption towers which are connected in parallel and are switched to be started; one tower is used for adsorption, another tower is used for heating desorption and the third tower is used for cooling; in the heating desorption process, an adsorbent is heated by a high temperature heat conduction medium which is from external circulation so as to be rapidly heated and desorbed, and simultaneously, a small volume of purified process gas is used as regenerated gas to take away impurities generated in the desorption process; and in the cooling process, the adsorbent is cooled by a low temperature heat conduction medium which is from external circulation, so that the temperature of the adsorbent is rapidly reduced and the regeneration process is completed. Regeneration time of the adsorbent can be shortened; consumption of the regenerated gas is reduced; meanwhile, adsorption period is reduced and the heights of the adsorption towers are reduced; and the adsorption and purification system is miniaturized.

The invention discloses a production method of high-pressure formation foil in foil-free ash, wherein medium and high pressure corrosion foil is subjected to pre-treatment, multi-stage formation treatment, primary high-temperature roasting treatment, primary formation repair treatment, secondary formation repair treatment, secondary high-temperature roasting treatment, and third-time formation repair treatment and post-treatment in sequence. Middle treatment is added between the primary formation repair treatment and the secondary formation repair treatment. In the middle treatment, the corrosion foil subjected to primary formation repair treatment is subjected to acid pickling by adopting a phosphoric acid solution, wherein the concentration of the phosphoric acid solution is 1.4-2.0 mol/L, and the acid pickling temperature ranges from 60 DEG C to 80 DEG C, and the acid pickling time is 8-20 min. According to the method, the relation between the foil ash and the performance of the aluminum electrolytic capacitor is found for the first time. A middle process of phosphoric acid pickling is added to remove formation foil ash powder, so that the dust control can be improved, and aluminum electrolytic capacitor breakdown phenomena can be reduced in an aluminum electrolytic capacitor manufacturing and cutting process.

The invention relates to a tree-shaped antenna, which comprises two feeding poles and more than three pairs of oscillators, wherein each pair of oscillators are in one step; the more than three pairs of oscillators are increased step by step from top to bottom; the upper ends of two feeding poles are connected to form a herringbone; each pair of oscillators are respectively and symmetrically installed on the two feeding poles; each pair of oscillators have the same structure but different sizes; the oscillators are one-stage fractons or two-stage fractons; each fracton comprises three fraction arms which are successively connected and are in the horizontal pole shape; the junction of adjacent fracton arms is provided with a vertically-upward fracton arm or a vertically-downward fracton arm; the lengths of the fracton arms are equal; one end of three successively-connected fracton arms is connected with one feeding pole, and the other end is connected with a one-stage loading metal bar. According to the tree-shaped antenna disclosed by the invention, the volume of the antenna is greatly reduced, the problem that the common metre wave log-periodic antenna can not be suitable to install on an airborne platform is solved, antenna cross coupling is lowered, and the electrical property can satisfy the system use requirement.

A yaw-type electric servo mechanism for a steering gear system, using a rare-earth motor as a driving source, after the torque is increased through a reduction box, it is transmitted to the output of the yaw system, which can drive the load to swing with a limited rotation angle, and the yaw system will swing The angle is fed back to the swing position signal of the control system through the potentiometer. The transmission scheme combining NGW planetary gearbox and ball screw is adopted, and four yaw-type servo mechanisms are evenly and symmetrically arranged on the end cover of the steering gear with an installation section diameter of 80-120mm. The servo system and drive circuit are placed in the gaps of the four yaw-type servo mechanisms, which saves space, facilitates system installation, and is conducive to the layout of the whole bomb, creating favorable conditions for the miniaturization of missiles. The compact structure layout is better than harmonic gear transmission The solution reduces the volume by 40% and the weight by 25%, and solves the problem of miniaturization and light weight of the steering gear. <pb pnum="1" />

The invention discloses an imaging optical lens, consisting of two pieces of refracting plastic lenses. From object to image, firstly a first lens with positive refracting power is matched with convex front surface and back surface; the refractive index N1 meets the relation that and N1 is less than 1.6 and more than 1.5; the focal length is f1, the systematic focal length is f and both meets the relation that f/f1 is more than 2.0; the front and back surfaces are both non spherical. A second lens with negative refracting power is arranged behind the first lens with concave front service and convex back surface; the refractive index N2 is more than 1.55; the front and back surfaces are both non spherical. In an optical imaging system, an aperture is set and arranged in front of the first lens for controlling the brightness of the optical system. Due to the lens structure, arrangement and lens configuration, the invention can effectively reduce the volume of lens and further obtain high definition.

The invention provides a special built-in glue injection gun for low-pressure glue injection. The gun comprises a gun body and a glue injection gun nozzle which is formed on the end part of the gun body, wherein at least one glue injection channel is arranged in the side wall of the gun body; the glue injection gun nozzle has a glue storage cavity and a glue outlet hole; the glue injection channel is communicated with the glue storage cavity, so that glue enters into the glue storage cavity through the glue injection channel and flows out from the glue outlet hole; the gun body further comprises an air cylinder which is internally provided with a piston and a gun needle; one end of the gun needle is connected with a piston while the other end of the gun needle extends into the glue injection gun nozzle; the piston can move between a first position and a second position so as to drive the gun needle to seal or open the glue outlet hole of the glue injection gun nozzle. The gun provided by the invention has the advantages that the gun can be used for controlling the amount of the glue to avoid cold melt and is compact in structure, minimized and high in reliability.

The invention discloses an atomic magnetometer device without passive magnetic shielding. The atomic magnetometer device comprises an atomic vapor bubble and further comprises a semiconductor laser, a1/2 wave plate, a polarization beam splitter, a laser frequency-stabilization module, a phase-locked amplifier, an acousto-optic modulator, a Wollaston prism, a first photoelectric detector, a secondphotoelectric detector and a differential amplifier; and the atomic vapor bubble is provided with a magnetic measuring sensor and located at the center of a three-dimensional Helmholtz coil unit, a computer is connected with a first data collecting card, the first data collecting card is connected with a voltage-controlled current source module, the voltage-controlled current source module is connected with the three-dimensional Helmholtz coil unit, the computer is connected with a second data collecting card, the second data collecting card is connected with an amplifying circuit module, andthe amplifying circuit module is connected with the magnetic measuring sensor. The invention further discloses a magnetic measuring method of an atomic magnetometer without passive magnetic shielding. The atomic magnetometer device is used for solving the problem of geomagnetic measuring, and meanwhile solves the problems of miniaturization and power consumption of the atomic magnetometer as well.

The invention relates to a one-eighth mode substrate integrated waveguide filter with fully adjustable center frequency and bandwidth. The EMSIW filter is composed of a single-layer dielectric plate,and the tuning of the center frequency and the bandwidth is realized by loading a varactor diode. By loading stubs on the EMSIW cavity, the resonant frequency can be reduced, and the frequency can betuned by loading varactor diode at the end of stubs, so the frequency tuning mode of the SIW structure can be realized innovatively. Two EMSIW cavities are electrically coupled through an edge gap which provides physical space for the loading element. The coupling coefficient between the two cavities is tuned by loading varactor diodes in the edge gap to realize the bandwidth tuning of the SIW structure. EMSIW is introduced to meet the miniaturization requirements of modern RF communication system and solve the problem that traditional cavity filters are difficult to be tuned by external loading tuning elements.

The invention discloses an immersion phase change liquid cooling system of a laser. The system comprises a laser knife box and a condenser, a refrigerant steam outlet is formed in the top of the laserknife box, a liquid refrigerant is arranged in the laser knife box, at least one set of laser modules are arranged in the laser knife box, the heating faces of the laser modules are immersed in the liquid refrigerant, the liquid refrigerant absorbs heat generated by the laser modules and then is converted into gas from liquid, and the gas refrigerant flows out of the laser knife box through the refrigerant steam outlet. The input end of the condenser is connected to the refrigerant steam outlet, the output end of the condenser is connected to the refrigerant liquid inlet of the laser knife box, the condenser is used for conducting heat exchange on gaseous refrigerants so that the gaseous refrigerants can be converted into liquid refrigerants through phase change, and the liquid refrigerants enter the laser knife box through the refrigerant liquid inlet. By means of the technical scheme, the heat dissipation efficiency of the laser can be improved, it is guaranteed that the laser operates in a constant-temperature environment, and the problems of miniaturization and light weight of a laser heat dissipation system are solved.

The invention provides a low-frequency voice communication system based on a piezoelectric mechanical antenna. The communication system comprises a function signal generator, a power amplifier, a feed support, a loop antenna, a lock-in amplifier and a computer. The computer controls the function signal generator to generate an electromagnetic wave signal needing to be transmitted, the power amplifier amplifies the power of a radio frequency signal output by the function signal generator, and excites the piezoelectric ceramic through the feed support to generate an inverse piezoelectric effect and radiate electromagnetic waves. The loop antenna receives an electromagnetic wave signal radiated by the piezoelectric ceramic, transmits the electromagnetic wave signal to the lock-in amplifier for signal filtering and amplification, and converts the signal into a voice signal of a transmitting end through the computer. The low-frequency voice communication system based on the piezoelectric mechanical antenna is simple in equipment installation, small in size and high in information transmission efficiency, and has very high application value in the aspects of underwater wireless communication, positioning, navigation and the like.

The invention discloses a fractal circular patch antenna which comprises a fractal circular patch antenna, a substrate, a feeder line and a floor. The fractal circular patch antenna is a fractal circular shape based on the fractal geometry theory, fractal circular holes are dug at the edge of a basic circle along the radial direction, a fractal iteration factor is 1/n, n is a natural number largerthan 2, and n is equal to 3. The ideal first-order fractal is tangent to circular holes with the radius of R/3 of a 360-degree three-unit circumferential array at the inner side of the circumferenceof a basic circle, and the second-order fractal is tangent to a circular hole with the radius of R/9 and the 360-degree three-unit circumferential array at the inner side of the circular hole of the first-order fractal along the radial direction of the basic circle on the basis of the first order. In practical application, the circle centers of the first-order fractal round holes and the circle centers of the second-order fractal round holes move outwards in the radial direction by delta 1 and delta 2 respectively; and by adopting a coupled feeding mode, a feeder line is formed by connecting astraight line and a circular microstrip line. The circular microstrip line and a first-order fractal circular hole are concentric, and in an embodiment, delta 1 is 0.11 mm, and delta 2 is 0.13 mm.

The invention discloses a preceding reaping threshing combined cereal harvester. The preceding reaping threshing combined foxtail millet harvester comprises a threshing structure, a cereal cleaning, conveying and combined transmission structure, a straw conveying mechanism and a mowing structure. The preceding reaping threshing combined foxtail millet harvester which makes straws stand still or fallen straws erected to stand still, and only makes grains stripped off, subjected to dreg removal and then collected is adopted to replace an existing whole-feed type harvester and an existing half-feed type harvester. The problems are solved that by means of the existing half-feed type harvester, grains are missed and wasted before threshing, the structure is complex, the cost is high and the energy consumption is too high; the special requirement that in an actual cropping system, only the straws which are not cut off can be buried into soil to serve as a fertilizer is met; the preceding reaping threshing combined foxtail millet harvester can operate in a paddy field, a muddy field, a hill area and a mountainous area and walk with no difficulties in a road-free sloping field within 45 degrees; even working in the paddy field deep muddy surface, the preceding reaping threshing combined cereal harvester does not sink; moreover, only one third of power of an existing harvester is needed, the preceding reaping threshing combined cereal harvester can complete the same amount of work; by means of the preceding reaping threshing combined cereal harvester, the bad manners that farming cannot be conducted, so that farmers set fire to burn up the straws are avoided.

The invention provides a miniature planar dual-frequency-band high precision satellite navigation antenna. The miniature planar dual-frequency-band high precision satellite navigation antenna includesa dielectric plate and a printed circuit base plate, wherein the dielectric plate includes a plurality of high frequency feeding points, a high frequency radiating surface, a plurality of low frequency feeding points, and a low frequency radiating surface; short circuit pins are distributed in the inner ring of the low frequency radiating surface; upward branch knots and downward branch knots aredistributed around the dielectric plate; the upward branch knots contact the printed circuit base plate; the downward branch knots are connected to the low frequency radiating surface; and coupling slits are formed between the upward branch knots and the downward branch knots. The miniature planar dual-frequency-band high precision satellite navigation antenna preferably solves the problems of antenna miniaturization, dual-frequency-band, antenna phase center elevation and the like, provides a design scheme for the miniature planar dual-frequency-band of the high precision satellite navigation antenna, effectively reduces the volume of the antenna, and effectively reduces the weight of the antenna at the same time.

The invention relates to a device and method for carrying out long-time in-situ detection on a complex water body based on a spectroscopy method, thereby realizing in-situ acquisition of underwater continuous fine wide spectrum. The device has advantages of simple and compact structure, strong sealing performance, miniaturization, low power consumption, high portability and the like. Moreover, thedevice uses a test path and a standard path to perform real-time comparison detection, so that the detection precision is improved. The device comprises a shell, a light source, a first collimating lens group, a one-to-two optical fiber, a second collimating lens group, a third collimating lens group, a light path switching assembly, a fourth collimating lens group, a fifth collimating lens group, a two-in-one optical fiber, a sixth collimating lens group, a synchronous circuit board, a spectrum module and an upper computer.

The invention discloses a method for sending signals by an intelligent antenna and the intelligent antenna, which aim at achieving the purpose of realizing miniaturization of the intelligent antenna and simultaneously guaranteeing the signal transmission performance. The intelligent antenna comprises a first antenna array element group and a second antenna array element group; the second antenna array element group is connected with a signal delayer which is used for delaying set time of signals to be sent; and the second antenna array element group is used for sending signals to be sent after the delay processing of the signal delayer so as to lead the second antenna array element group to have a certain time delay corresponding to the first antenna array element when sending signals. The invention utilizes time delay emission diversity to obtain multi-path combined gain, thus realizing miniaturization of the intelligent antenna and simultaneously guaranteeing the signal transmission performance.

The invention provides a mobile terminal including a housing made by a Laser Direct Structuring (LDS) process and provided with a conductive layer; a metal decorating part arranged on the housing and electrically connected to the conductive layer; and a grounding part arranged in the housing and electrically connected to the conductive layer. According to the invention, the good flatness and strength of the housing of the mobile terminal can be realized.

The invention discloses an integrated electronic management system for a miniature Mars lander. The function composition of the integrated electronic management system comprises an internal and external electricity conversion module, an initiating explosive device detonation module, a power supply control module, a central management module and a connector assembly module, wherein the internal and external electricity conversion module is used for realizing switching control for an external power supply circuit and an internal power supply circuit of the lander; the initiating explosive device detonation module is used for realizing unlocking control for mechanism expansion, back-stepping braking and the like in the processes of entering, descending and landing of the lander; the power supply control module is used for realizing power supply control for an internal sensor, a communication unit, a heater and the like of the lander; the central management module is used for realizing functions such as program control in the landing process of the lander, internal bus communication, remote measurement signal acquisition, scientific data collection, data nonvolatile storage and the like; and the connector assembly module is used for realizing electrical connection between the management system and other electronic equipment in the lander. The integrated electronic management system has the characteristics of low weight, low power consumption and high space utilization rate, and solves a miniature and integrated design problem of the Mars miniature lander electronic system.

The invention relates to the technical field of lasers, in particular to an automatic waste discharge laser for position-sleeving cutting. The automatic waste discharge laser for position-sleeving cutting comprises a worktable, wherein the worktable is a cellular board sealed below, an emptying shaft and a material receiving shaft are separately arranged on the left and right sides of the worktable, a strip is arranged between the emptying shaft and the material receiving shaft, a plurality of positioning holes are uniformly formed in two sides of the strip, a suction pump is arranged below the worktable, the suction pump is connected to the bottom of the worktable through an inhaling hose, positioning devices are separately arranged below the positioning holes in two sides of the strip, the positioning devices are air cylinders, positioning pins are arranged on the air cylinders, a laser head is arranged above the strip, X-axis and Y-axis coordinate systems are arranged below the worktable, the laser head is connected to the X-axis and Y-axis coordinate systems, and two adjustable limiting blocks are separately arranged at the left and right ends of the worktable.