388results about How to "Realize adjustable" patented technology

A thermally-assisted magnetic recording head is provided, in which the light-source output can be adjusted according to its variation by environmental influences and over time. The head comprises: a light source; a write head element provided in a element-integration surface; an optical system provided in the element-integration surface and configured to guide a light emitted from the light source to the vicinity of one end of the write head element; and a light detector for monitoring the light-source output, provided in the element-integration surface and comprising a light-receiving surface covering an area directly above at least a portion of the optical system. This light detector with such a light-receiving surface can detect a leakage light emitted from the optical system as a monitoring light. Therefore, feedback adjustment of the light-source output can be realized to stabilize the intensity of light for thermal-assist applied to a magnetic recording medium.

The invention relates to a preparation method of a hyperbranched polymer-modified nano-silicon dioxide hybrid material. The preparation method comprises the following steps: grafting a mercapto group-containing silane coupling agent to the surface of nano-silicon dioxide, utilizing a surface mercapto group and polyfunctional acrylic ester to perform click reaction to form the modified nano-silicon dioxide with the tail end of the acrylic ester, further performing the click reaction with a polyfunctional mercapto compound to form the modified silicon dioxide with the tail end of the mercapto group, repeating the operation between the polyfunctional acrylic ester and the polyfunctional mercapto compound for multiple times, and forming a hyperbranched polymer on the surface of the silicon dioxide. The hyperbranched polymer-modified nano-silicon dioxide hybrid material prepared by the preparation method provided by the invention has the mercapto group at the tail end and a hyperbranched structure, when the hyperbranched polymer-modified nano-silicon dioxide hybrid material is applied in an ultraviolet curing coating, the heat resistance, the hardness, the wear resistance and other mechanical properties of the coating can be improved, and the hyperbranched polymer-modified nano-silicon dioxide hybrid material can particularly solve the problems of dispersion and migration of the nano-silicon dioxide in the ultraviolet curing coating and the problem of oxygen polymerization inhibition of the ultraviolet curing coating.

A method and a system for a mobile robot to self-establish a map indoors are provided, and the method comprises: forming an initialized map (101); marking a coordinate origin in the initialized map (102); causing the robot to travel throughout indoor accessible regions to record path information and environment information (103); causing the robot to calculate and mark a CV value of each grid in the map (104); and establishing the map according to the path information and the CV value (105), the path information and the CV value being obtained through calculation by using a mathematic algorithm. By adopting a grid map to perform modeling, real-time adjustment and correspondence of an indoor environment and grid information are realized and effectiveness of a map model is ensured; further, the grid map is easy to be maintained and is convenient for quick access of map data.

The invention provides a reconfigurable lead screw pair and guide rail pair accelerated life electro-hydraulic servo test bench which is characterized in that two lead screw bearing seats of a T-shaped table between two guide rail mounting tables on a base are provided with lead screws connected with a motor; guide rails on the guide rail mounting tables are matched with guide rail sliding blocks; guide rail sliding block backing plates on the guide rails, a grating bar reading head on one guide rail mounting table and nut bases on the nuts of the lead screws are connected with the bottom of a stressed sliding table; one side of the stressed sliding table is meshed with a gear at the end part of the output shaft of a magnetic powder brake through a gear rack; the other side face of the stressed sliding table is opposite to a force application wheel of a transverse loading mechanism; and the upper part of the stressed sliding table is opposite to a force application wheel of a vertical loading mechanism. The test bench provided by the invention can be used for realizing the accelerated life test of three-way dynamic loading of multiple types of lead screw pairs and guide rail pairs, collecting test data required for evaluating the residual lives and degradation mechanisms of the lead screw pairs and the guide rail pairs in real time, and providing more reliable test basis for the design and maintenance of the lead screw pairs and the guide rail pairs.

A power-driven hammer has a tool holder a middle bore portion which is supported inside a housing and urged backward by a compression spring. The rear end of a large bore portion of the tool holder is slidably fitted into a spline ring which is secured to the front end of a middle housing. Spline grooves are formed in the inner periphery of the spline ring at its front end while spline gears are formed on the outer periphery of the large bore portion. When the spline grooves and the spline gears are engaged with each other, the tool holder, being urged backward, is locked with its rotation prohibited. This tool holder can be temporarily unlocked to allow its rotation by sliding a change ring cover forward and the tool holder itself, thereby disengaging the large bore portion from the spline ring.

Disclosed is an electromagnetic wave transmission device with regulative and controllable magnetic field based on sub-monolayer wavelength metal grating; the device comprises a sub-monolayer wavelength metal grating and magnetoactive medium filled in the slit of the sub-monolayer metal grating; the metal part of the device and the magnetoactive medium have the same thickness, the thickness at least meets and supports the lowest-level Fabry-Perot cavity resonance demand of the designed work wavelength in the grating slit; the period and slit of the grating are shorter than the wavelength of the electromagnetic wave. By changing the size of the additional magnetic field, the propagation constant of the waveguide mode in the metal grating slit can be regulated to change the electromagnetic transmission characteristic of the device and realize the purpose of initial regulation of polarization-independent electromagnetic wave transmission spectrum and the electromagnetic wave transmission spectrum magnetic field.

The invention discloses a high-maneuverability building outer wall aerial working platform structure. The high-maneuverability building outer wall aerial working platform structure comprises a hangingplatform and a suspended hanging platform, and the hanging platform comprises supporting frames, a cable and a counterweight, wherein each supporting frame comprises a crossbeam, a mast and a supporting foot; one end of each crossbeam extends out of an outer wall and is fixed at the upper edge of the outer wall, and the other end of each crossbeam is supported by the corresponding supporting footsupported on the roof surface; each mast is vertically arranged on the corresponding crossbeam, the counterweight is suspended below the corresponding crossbeam, and the counterweight and the corresponding supporting foot are located at the same end of the corresponding crossbeam; the high-maneuverability building outer wall aerial working platform structure further comprises a first track and asecond track, wherein the first track is arranged on the roof surface, a roller is arranged on the lower portion of each supporting foot, and the rollers on the lower portions of the supporting feet are embedded in the first track; and the second track is arranged at the upper edge of the outer wall, a roller is arranged on the lower portion of each crossbeam, and the rollers on the lower portionsof the crossbeams are embedded in the second track. According to the high-maneuverability building outer wall aerial working platform structure, mobile maneuverability of a hanging basket device canbe enhanced, adhesion force of the hanging basket device is also enhanced at the same time, and then stability and safety of the hanging basket device are enhanced accordingly.

The invention relates to the field of electrics, in particular to a voltage-adjustable direct current voltage stabilizing power supply. In a switch power supply or a linear power supply, a voltage setting circuit is connected to the switch power supply or the linear power supply through a setting resistor and is used for generating setting voltage; and a control unit is used for controlling the setting voltage output by the voltage setting circuit according to the sampled voltage and / current information. According to the embodiment of the invention, the output voltage is adjusted by using an electronic mode, thus the problems that wear, ineffectiveness and the like are generated because a mechanical structure is adjusted in the prior art are avoided; in addition, more accurate adjustment on the output voltage of the power supply can be realized through a control chip.

The invention relates to a miniature spiral pipeline robot. The miniature spiral pipeline robot comprises a short drive joint and a short moving joint. The short drive joint comprises a drive motor, a power source, a controller and a righting mechanism. The drive motor is fixedly connected with guide wheel frames. Guide wheel arms on the guide wheel frames are connected with guide wheels. Elastic force is provided through torsion springs, so that the guide wheels make tight contact with a pipeline. The short moving joint comprises a machine body, a driving wheel, a driving wheel frame, a variable diameter rod, a spring, an angle adjustment sleeve, an angle adjustment motor, a transmission mechanism, a battery, a single-joint controller and a centering mechanism which is composed of the guide wheel frames, the guide wheel arms, the guide wheels, the torsion springs and bearings. The angle adjustment motor is connected with the angle adjustment sleeve through the transmission mechanism. The driving wheel is installed on the driving wheel frame. The driving wheel frame is fixedly connected with the variable diameter rod. Pre-tightening force between the driving wheel and the pipeline is adjusted through the spring. The miniature spiral pipeline robot is capable of passing the curved pipeline conveniently. Moving is flexible, and traction is large. The miniature spiral pipeline robot can be adapted to operation in the miniature pipeline very well.

The invention discloses a feedback control method for a midpoint potential of a three-level inverter based on dual-modulating wave carrier modulation. The feedback control method comprises the following steps: collecting midpoint potential imbalanced information from a direct current side, injecting zero-sequence components into three-phase modulating waves, compensating the three-phase modulating waves, and carrying out modulating wave decomposition on one phase in the compensated three-phase modulating waves, so as to acquire midpoint potential balanced positive and negative modulating wave expressions; and making comparison on the compensated modulating waves, decomposed dual-modulating waves and carriers, so as to finally obtain switch sequences of all power switch tubes of a three-level NPC inverter. Compared with the prior art, the feedback control method has the advantages that the average midpoint current in a switching period under any imbalanced degree, power factor and modulation degree can be zero, and the distortion of a load current fundamental component caused by the low-frequency fluctuation and imbalanced midpoint of the midpoint potential can be completely eliminated; and the method is applicable to occasions that requirements on the balance of the midpoint potential are relatively strict or upper and lower groups of direct voltages need to be independently controlled.

The invention relates to an anti-fatigue cold mixed epoxy resin material, preparation method and application thereof, comprising component A and component B with mass ratio of 1:1-10:1, component A comprising fluid epoxy resin, active toughener, active diluents, coupling agent and defoamer; component B is any one of or a mixture of two or more than two of alicyclic amine or amino terminated polyether, cyanoethylamine, phenolic modified amine or hydroxyalkyl modified amine. Introduced epoxy terminated organosilicon block polyurethane prepolymer breaks the limitation that elongation at fracture of epoxy resin system based on “sea-island structure” is difficult to break through 100%. The invention is suitable for bridge deck pavement of long-span cable bearing bridge, waterproof bonding material or used for airport pavement, municipal viaduct, ramp and other occasions with high requirements for fatigue resistance of pavement material.

The invention relates to an electrical connector with an automatic retaining mechanism and a short-circuit module, which consists of a plug, an automatic retaining mechanism, a short-circuit module and a socket, wherein the plug comprises a guide pin, a shell, a transfer jack, a connecting sheet, a jack contact piece, two insulators, a sealing pad and a short-circuit pin; the automatic retaining mechanism comprises a support, a threaded sleeve, nuts, a pull rod, a locking spring, a liner bushing, a steel ball, a spring, a riveting pipe, an insulating sheet, a short-circuit block and a fixed plate; the short-circuit module comprises a shorting stub, a jack contact piece and two insulators; the socket comprises floating bolts, a shell, a baffle, a push rod, a separation spring, a pin and twoinsulators; when the plug and the socket realize a short circuit in an insertion state, the short-circuit module is inserted at the tail end of the plug so as to reach the specified function; when the short circuit is not needed, the short-circuit module is pulled out of the plug; and when the plug is not inserted into the socket, the pull rod is directly pulled so as to enable the plug to generate the short circuit again, and liner bushing parts are pushed so as to enable the plug to lie in the broken retaining state.

The invention relates to a novel circulation experiment water tank. The novel circulation experiment water tank is composed of a U-shaped elbow, wing-shaped flow deflectors, a bolt, a flange, two steel wire nets, a straight tube, a cambered cone-shaped tube, a minor-diameter straight tube, a U-shaped water tank body and a long tapered tube. The whole water tank is made of organic glass, high in transparency and mechanical strength, light in weight and easy to machine. The wing-shaped flow deflectors are small in resistance and good in diversion feature, and the fluid flow speed is effectively controlled. The straight tube and the cambered cone-shaped tube are connected through the bolt and the flange, and can be dismounted conveniently. The steel wire nets are installed in the straight tube section, a water flow vortex flowing from the U-shaped elbow is divided into small vortexes, impact to the water tank is relieved, and the water flow can be inclined to being straight. The long tapered tube effectively prevents an inner bounding layer of the long tapered tube from disengaging. The cambered cone-shaped tube is in a streamline shape and effectively prevents a boundary layer from disengaging, the two ends of the cambered cone-shaped tube are connected through the flange, installation is convenient, and the cambered cone-shaped tube is easy to replace. The novel circulation experiment water tank is good in adjusting performance, stable in operation, convenient to manufacture, even in internal fluid flowing speed and simple in structure, provides great convenience to the actual application, and can be widely applied to indoor hydraulics experiments.

The invention provides a fine particle laser radar system with an adjustable focal position and a self-calibration method. The fine particle laser radar system comprises a laser, an imaging CCD (charge coupled device), a control computer, a beam expander (8), a first right-angle reflecting prism (9), a corner reflector (10), a plane mirror (11), a collimating mirror (12) and a second right-angle reflecting prism (13), wherein laser emitted by the laser passes the a beam expander (8), the first right-angle reflecting prism (9), the plane mirror (11), the corner reflector (10), a receiving optical system, the collimating mirror (12) and the second right-angle reflecting prism (13) in sequence and then reaches the imaging CCD; the imaging CCD is connected with the control computer; the control computer controls the laser. The fine particle laser radar system realizes the adjustment of a focal plane and a focal position by adjusting a main primary mirror position, and also realizes a whole set of adjustment process, from rough adjustment to fine adjustment, of the fine particle laser radar system. The self-calibration method replaces manual calibration, overcomes the problem that no target image serves as a reference point, improves the precision, and meanwhile eliminates personal errors caused by manual operation.

The invention relates to OADM with up and down wavelength channel adjustable based on plane waveguide, which comprises: a monomode waveguide MZI filter with four ports as a signal input port (1), a down port (2), an output port (3), and an up port (4); and Bragg optical gratings etched on two arms of the filter; wherein, the filter comprises two directional coupler composed of waveguides (15) ~ (17) and two parallel arms (18) with Bragg gratings (11) on top. This invention realizes up and down wavelength adjustable, uses micro-manufacture technology to integrate IC, and has wide application.

The invention discloses an adjustable conveying frame used for conveying medicine bottle boxes. The adjustable conveying frame used for conveying the medicine bottle boxes comprises a cuboid-shaped conveying board (1) and supporting legs (7) fixed to the two ends of the conveying board (1), wherein the two side edges of the conveying board (1) in the conveying direction are respectively provided with two fixing clamps, each fixing clamp comprises a bottom board (3) and a stand column (4) fixed to the bottom board (3), each stand column (4) is provided with a transverse hole and a vertical hole both of which penetrate through the stand column (4), the transverse hole in each stand column (4) is provided with an adjustable rod (5), a baffle (2) is arranged at one end, close to the conveying board (1), of each adjustable rod (5), the vertical hole of each stand column (4) is a threaded hole, and each vertical hole is internally provided with a bolt (5) matched with the vertical hole. By the adoption of the structure, the limitation of the width of a traditional conveying channel can be overcome, the conveying effect is improved, and operation of subsequent steps is facilitated.

The invention belongs to the field of laser devices, and particularly relates to an acousto-optic Q-switched ytterbium-doped all-fiber laser. In order to solve the problems of low coupling efficiency, high maladjustment sensitivity, complex experimental facilities and the like caused by separated component structure in Q-switched fiber laser, the invention adopts a technical proposal of the acousto-optic Q-switched ytterbium-doped all-fiber laser which comprises a fiber bragg grating (FBG), an acousto-optic modulator (AOM) with tail fiber, a multimode coupler, two pumping light-emitting diodes (LDs), ytterbium-doped double-clad fiber and output tail fiber, wherein the two pumping LDs couple pumping light to the ytterbium-doped double-clad fiber respectively by the multimode coupler; the ytterbium-doped double-clad fiber is connected between the output terminal of the multimode coupler and the output tail fiber; the FGB is connected to a signal terminal of the multimode coupler by the AOM with tail fiber, and forms a resonant cavity with the end surface of the output tail fiber simultaneously; and alternating voltage is applied on the AOM. The invention is mainly used in the manufacturing and designing of lasers.

The invention discloses a temperature self-preservation system used for temperature control of a concrete in mass bearing platform and a using method of the temperature self-preservation system. The temperature self-preservation system comprises multi-layer cooling tubes and a water conveying device. The multi-layer cooling tubes are arranged inside the bearing platform by layers from top to bottom, each layer of the cooling tubes comprises annular tubes arranged on the periphery of the bearing platform and core tubes arranged at the center of the bearing platform, and the water conveying device is connected with the annular tubes and the core tubes. According to the temperature self-preservation system, the cooling tubes comprise the annular tubes arranged on the periphery of the bearingplatform and the core tubes arranged at the center of the bearing platform, and "cooling inside and preserve outside" is realized through the annular tubes and the core tubes, that is to say, besidestemperature cooling from inside, the temperature can further be preserved from outside; and multi-layer layout is adopted by the cooling tubes, the multi-layer cooling tubes are arranged inside the bearing platform by layers from top to bottom, and the core tubes which are arranged between adjacent two layers of the cooling tubes are perpendicularly arranged in a staggering mode so that uniformlytemperature reducing can be realized. The invention further discloses a using method of the temperature self-preservation system used for the temperature control of the concrete in mass bearing platform.

The invention relates to an air regulating device. The device comprises an air direction transmission structure and an air volume transmission structure which are arranged on a shell, and a shell cavity is protruded upwards out of the shell in the axial direction. The wind direction transmission structure is installed on the outer side of the shell cavity so as to adjust the blowing angle. The airvolume transmission structure is installed on the inner side of shell cavity to adjust the air blowing strength, and comprises a knob assembly, an air volume bush, a transmission shaft and an air door, the transmission shaft is connected with the air door, and the knob assembly is installed on the transmission shaft through an air volume universal joint pair by means of the air volume bush. According to the air regulating device, independent control over the air direction and the air volume can be achieved, and meanwhile the situation that in the prior art, due to the fact that the elasticityof a spring is weakened, operation is not smooth or the air door cannot be normally closed can be prevented. Moreover, according to the air regulating device, random adjustment of different air blowing angles can be achieved, the air blowing amount and the air blowing angles do not interfere with each other, and operation is simpler and more reliable.

The invention discloses a medical production line conveying device. The medical production line conveying device comprises a conveying plate, support legs, fixed clamps, laser counters and a positioning cylinder, wherein the support legs are arranged at the two ends of the conveying plate; the two support legs at the same end of the conveying plate are connected through a transverse plate; the positioning cylinder is arranged at the bottom of one end of the conveying plate, and is provided with a positioning shaft; the positioning shaft is fixed at the bottom end of the conveying plate; two fixed clamps are respectively arranged at two side edges of the conveying plate in a conveying direction; the fixed clamps comprise baseplates, and stand columns fixed on the baseplates; baffle plates are fixed at one ends, near the conveying plate, of adjustable rods; and the laser counters are mounted at the two ends of the baffle plates. As the fixed clamps are arranged, the two baffle plates are arranged above the conveying plate, and the adjustment of a conveying channel is realized through the adjusting effect of the adjusting rods and bolts, medicine bottle boxes with different volumes and sizes can be satisfied, the conveying efficiency is better, and the operation of subsequent link is facilitated.

The invention relates to an electronic control variable-damping rotation hydraulic damper which comprises a motor, an outer shell, a blade, a valve element, a valve body, a shaft, a spring, a cover plate and the like. Due to the fact that a guide groove is formed in the middle shaft of the variable-damping rotation hydraulic damper, a guide rail is arranged on the shell, the blade automatically moves transversely in the radial direction along with the guide rail during rotation, the volume of driven liquid is changed, the liquid flows in a circulated manner through the valve element, and the function that the rotation angle of the damper is unlimited is achieved; and the valve element is driven by a step motor to rotate, so that the size of the drift diameter of a runner composed of the valve element and the valve body is variable, and the function of being adjustable in rotation damping is achieved.

A band-gap reference voltage source / or a current source is widely applied to various analog hybrid integrated circuits / or digital-analog hybrid integrated circuits, and the performance of the whole circuit is determined by the temperature stability of the band-gap reference voltage source / or the current source. The invention discloses a band-gap reference voltage source with adjustable output voltage. Mutual compensation is carried out by utilizing the current with positive and negative temperature coefficients, so as to form steady current with second-order compensation effect; the current is duplicated by utilizing a current mirror proportion; and temperature compensation is further carried out by utilizing resistance of temperature coefficients of different materials, so as to generate reference voltage output with adjustable voltage values. The band-gap reference voltage source with the adjustable output voltage is composed of a reference current generation module and an adjustable voltage output module.

The invention discloses an integrated standard engineering structure creation and system design method based on BIM (Building Information Modeling). The method comprises the following steps: firstly, determining the location of main equipment, and drawing an equipment base and reserving the equipment spatial position; secondly, determining the type of integrated equipment, selecting usage families corresponding to system equipment, pipe fittings and pipelines and performing secondary development and design on each selected group, drawing into an integrated standard engineering structure, performing parameterized setting on the standard engineering structure, and configuring an in-out port; and arranging the standard engineering structure in the reserved position, and connecting the remaining pipelines and pipe fittings to complete the system drawing. The integrated standard engineering structure creation and system design method based on the BIM provided by the invention integrates the traditional family in the BIM drawing, and integrates the equipment with end pipelines and pipe fittings into the standard engineering structure; and in the BIM drawing, the addition of pipeline fittings is one of the main workload, and the integrated design method can improve the drawing efficiency, reduce the mechanical drawing time, and increase the layout flexibility and versatility.

The invention discloses a method for combined production of ammonium sulfate and ammonia through water heat pump flash evaporation, stripping and deamination. The method comprises the following steps: ammonia nitrogen steam discharged from the top of the stripping section of a composite stripping and deaminating tower (3) is pressurized through a steam circulating heat pump (11), and the pressurized ammonia nitrogen steam is divided into three parts; the first part of the ammonia nitrogen steam enters the two stage mixing section of the composite stripping and deaminating tower (3) to heat ammonia nitrogen wastewater; the second part of the ammonia nitrogen steam enters a saturation tower (4) and undergoes ammonia nitrogen preliminary absorption, and the absorbed ammonia nitrogen steam enters an absorption tower (5) and undergoes ammonia nitrogen purifying recovery; and the third part of the ammonia nitrogen stem enters the tower top rectifying section of the composite stripping and deaminating tower (3) to produce the ammonia water product. The method allows ammonium sulfate and ammonia water to be simultaneously produced, and a ratio of ammonium sulfate to ammonia water can be adjusted according to reuse requirements of a production device, so ammonia nitrogen recovered from the wastewater can be completely reused in the production device in order to realize good energy saving, consumption reduction and deamination effects.

The invention discloses an interactive-region-adjustable augmented reality realization method. The method is implemented by the following steps of 1, constructing a cloud platform; 2, enabling an interactive region to be adjustable; 3, executing an operation method; and 4, reading and running data for realizing spatial matching. By adjusting four dimensions of a relative spatial position between a three-dimensional scanning device and a projection display device, the adjustment of the augmented reality interactive region and a main information graph projection direction is realized; and the same graph with a non-centrosymmetric relationship pattern, displayed by the projection display device in a full-screen manner is captured twice by use of three-dimensional scanning, and a relative position relationship between the three-dimensional scanning device and the projection display device, and main projection parameters of the display device are calculated through an algorithm. The method has the beneficial effects that after an original augmented reality interaction system is added, the adjustment of the interactive region formed between the three-dimensional scanning device and the projection display device, and the main information graph projection direction is realized, and the application occasion of the original system is extended.

The invention creatively provides an automatic optical fiber cable arrangement device which comprises a stranding mechanism, a guiding mechanism correspondingly arranged on the stranding mechanism and a stranding head adjusting mechanism for adjusting the space position of the stranding mechanism. The stranding mechanism comprises the stranding head installed on a stranding head fixing seat. The stranding head adjusting mechanism comprises an X-axis adjustment mechanism, a Y-axis adjustment mechanism and a Z-axis adjustment mechanism. The stranding head fixing seat is installed on a Y-axis fixing plate of the Y-axis adjustment mechanism. A take-up reel can be driven to rotate through a take-up motor on a ground rail gantry take-up device, and cable guiding and arrangement are performed through a cable guiding wheel to ensure ordered cable arrangement on the take-up reel. By adding a mechanical and automatic cable arrangement device on an optical cable production device, any space position adjustment of the stranding mechanism and the guiding mechanism can be achieved through the stranding head adjusting mechanism, automatic optical cable arrangement is achieved, the demands of workers are met, personal safety is completely eradicated, and packaging appearance is improved.

The present invention discloses a method of adjusting a volume of a display device and a display device, which can adjust the volume of the display device intelligently. The method of adjusting the volume of the display device comprises the steps of: firstly detecting a distance between the viewer and the display device, then determining a target volume to which the distance corresponds, finally adjusting the playing volume of the display device as the target volume.