99results about How to "Structure is easy to implement" patented technology

The present invention prevents the amount of slack from decreasing below a predetermined value when a yarn slack eliminating device is used to control a winding tension during a yarn winding process executed by a spinning machine. A winding device 12 winds a yarn spun by a spinning device 5, into a package 16, while a yarn slack eliminating device 10 is eliminating the slack of the yarn. During this process, when it is detected that the amount of slack in the yarn slack eliminating device 10 decreases below a predetermined value, the package 16 is separated from a rotating drum 13 to reduce a winding speed to increase the amount of slack. At this time, the time for which the package 16 remains separated is controlled in accordance with the winding diameter of the package 16 to adjust the aspect of reduction of the winding speed. When the amount of slack is increased, the time for which the reduction of the winding speed is continued and the amount of speed reduction are adjusted taking the winding diameter of the package into account. Therefore, the optimum speed reduction aspect can be set in accordance with a variation in the inertia moment of the package.

The invention discloses a full-automatic winding production line and a processing method thereof. The full-automatic winding production line comprises at least one automatic feeding machine, at leastone winding machine and an automatic winding disc feeding and discharging robot, wherein the automatic feeding machine is used for supplying a filament-shaped body; the winding machine is used for fixing a winding disc and driving the winding disc to rotate; and the automatic winding disc feeding and discharging machine can move the winding disc onto the winding machine and taking the winding discdown from the winding machine, and the position of the filament-shaped body can be determined visually when the filament-shaped body is grabbed and cut off. According to the scheme, the automatic winding disc feeding and discharging robot cooperates with the automatic feeding machine and the winding machine, so that the whole process of feeding, winding and discharging is achieved automatically,and the novel full-automatic winding production line which is simple in structure and capable of controlling the winding process easily is provided; in addition, the visual positioning technique can effectively and accurately determine the position of the filament-shaped body, so that automatic grabbing and shearing are made possible; and the visual positioning technique is good in flexibility andhigh in accuracy and efficiency, so that the winding efficiency is improved.

The invention discloses a coupling coil and magnetic core structure used for underwater wireless charging and an underwater wireless charging system. The coupling coil and magnetic core structure comprises a transmitting end and a receiving end. The transmitting end and receiving end comprise annular-shaped magnetic core skeletons and coils disposed on the skeletons in a coiled manner. The transmitting end coil and the receiving end coil are in an embedded arrangement, and a certain gap is arranged therebetween, and the transmitting end coil and the receiving end coil are coupled with each other, and a coupling magnetic field is in a radial direction. The transmitting end coil and the receiving end coil are coupled with each other by the radial magnetic field, and an object of realizing wireless electric energy transmission is achieved.

The invention provides a low-temperature drift band gap reference voltage circuit and method, and a chip of the circuit. The circuit comprises a self-biasing module, a band gap reference core module and a voltage generation module. The method comprises the following steps of generating a primary reference voltage; generating a reference voltage before compensation through base current correction and the primary reference voltage; and generating a low-temperature drift band gap reference voltage. The low-temperature drift band gap reference voltage circuit and method is applied to a power management chip. The method has the advantages that the band gap reference voltage source circuit with ultrahigh precision and an ultralow-temperature drift coefficient is realized, and the high-stabilityreference voltage can be provided for circuit applications with relatively high reference voltage requirements.

The invention relates to an oxide p-i-n junction device and a method for preparation the same, wherein the device comprises a substrate, a p-type oxide layer formed on the substrate, an n-type oxide layer formed on the p-type oxide layer, leading-out ends respectively formed on the p-type oxide layer and the n-type oxide layer to be connected with lead wires, and a ferroelectrics potential barrier layer arranged between the p-type oxide layer and the n-type oxide layer; the n-type oxide layer and the ferroelectrics potential barrier layer, which are arranged at one side of the p-type oxide layer, occupy one third to two thirds of the area of the p-type oxide layer with the other part used as the leading-out end of the p-type oxide layer; the surface of the n-type oxide layer is used as the leading-out end of the n-type oxide layer; the leading-out ends of the p-type oxide layer and the n-type oxide layer are respectively provided with precious metal bonding pads used to be connected with the lead wires; moreover, both the p-type oxide layer and the n-type oxide layer are metallic. With a simple preparation method and an easily realized structure, the device realizes diversified functions of a single device.

The invention provides a power management circuit and a chip thereof. The power management circuit comprises a pre-voltage stabilizing module, a linear voltage stabilizing module, and a bias current generation module. Input voltages sequentially pass through the pre-voltage stabilizing module, the linear voltage stabilizing module, and the bias current generation module to generate a pre-stabilized voltage VPR, a voltage stabilizing voltage VREG, and a bias current Ibias separately. The power management circuit in the chip provides a power supply voltage and a current bias for modules in the chip. The invention has the advantages that the circuit can generate stable voltages at high input voltage conditions to provide stable power supply for each module in a power management IC (IntegratedCircuits); output currents are stable, and the driving capacity is large; the power consumption of the power management circuit is low, helping to control the overall power consumption of the chip; and the circuit structure is easy to realize so as to be suitable for engineering application.

An EBPSK-based communication method and system are disclosed in the present invention, relating to the field of digital communications. The method includes: a transmitting end performs encoding and EBPSK modulation for an information sequence to obtain an EBPSK modulation signal; and a receiving end performs EBPSK demodulation and decoding for the EBPSK modulation signal to obtain the information sequence. The present invention can enhance the anti-interference ability of the EBPSK communication system.

The present invention relates to the technical field of neutron reflection, particularly to a neutron reflection spectrometer optical path structure capable of performing rapid switching between a polarization mode and a non-polarization mode. The optical path structure mainly comprises an incident arm, a sample table and a reflection arm, wherein the incident arm comprises a first slit, a second slit, a third slit, a focusing conduction pipe, a polarizer, a first translation table, a second translation table, a first platform, a second platform and an incident arm base, the sample table comprises a vertical electromagnet, a sample, a cryostat, a third platform, a sample attitude adjustment mechanism and a sample table base, and the reflection arm comprises a fourth slit, a lifting table, a polarization analyzer, a detector, a third translation table, a reflection arm base, a fourth platform and a reflection arm rotation drive mechanism. According to the present invention, the rapid switching between the polarization mode and the non-polarization mode can be achieved by simply controlling and adjusting the movements of the three translation tables and the lifting table, such that the structure is easily achieved, and the precision of the experiment is high.

The invention discloses a full-angle luminous LED (light-emitting diode) chip encapsulation structure, which comprises an LED chip. The full-angle luminous LED chip encapsulation structure is characterized by further comprising a base material, an electrode, a first adhesive layer, a second adhesive layer and a protective adhesive layer, wherein the base material is used for bearing the LED chip on the front side; the electrode is arranged on the front side of the base material and is used for being electrically connected with the outside; the first adhesive layer is arranged between the base material and the LED chip; the second adhesive layer is used for covering the LED chip; the protective adhesive layer is coated at the outer side of the second adhesive layer for playing a protection role; the LED chip is completely cladded by the first adhesive layer and the second adhesive layer; the first adhesive layer, the second adhesive layer and the protective adhesive layer are transparent; and the electrode and the LED chip are electrically connected. The full-angle luminous LED chip encapsulation structure has the beneficial effects that full-angle lightening of the LED can be achieved, and meanwhile, the full-angle luminous LED chip encapsulation structure is simple in structure and can fully protect the LED chip, and the machining technology is easy to realize.

The invention discloses a longitudinal gradient short-fiber piezoelectric composite material and a preparation method thereof, and relates to the technical field of material preparation. The longitudinal gradient short-fiber piezoelectric composite material comprises an interdigital electrode and a piezoelectric fiber composite layer, wherein the piezoelectric fiber composite layer is arranged between an upper electrode and a lower electrode of the interdigital electrode and comprises a plurality short-fiber piezoelectric composite units, the plurality of short-fiber piezoelectric composite units are sequentially pasted along an axial direction, the axial lengths of the plurality of short-fiber piezoelectric composite units are changed in a gradient way, and each short-fiber piezoelectriccomposite unit comprises a plurality of polarization short piezoelectric fibers and a plurality of polymer fibers. Polarization is completed before package of the longitudinal gradient short-fiber piezoelectric composite material, the polarization is complete and uniform, the problem of polarization dead zone is prevented, and meanwhile, the adaptability of a non-planar structure is improved. According to the preparation method of the longitudinal gradient short-fiber piezoelectric composite material, the longitudinal gradient short-fiber piezoelectric composite material is prepared, the structural size of the composite material is accurately controlled, and series and mass production of the piezoelectric composite material in structure and performance are easily achieved.

The invention discloses a trimaran anti-pitching decoupling controller and design method, belonging to the technical field of ship control. The trimaran anti-pitching decoupling controller includes a trimaran, a first PD controller, a second PD controller, a decoupling compensator, a first amplitude limit link, a second amplitude limit link, a heaving measurement module and a pitching measurement module. The closed-loop negative feedback control of the system is carried out to reduce the influence of the anti-pitching floating bodies, namely, a T-wing and a spray strip, on the heaving and pitching motion of the trimaran. According to the T-wing and the spray strip theoretical angle output by the decoupling controller, the lifting and lifting moment of the T-wing and the spray strip can be controlled to offset the wave force and wave moment of the ocean wave, so that the heaving and pitching can be reduced. For the trimaran anti-pitching decoupling control problem, a decoupling method based on the feedforward compensation is proposed, the decoupling of the T-wing and the spray strip, the two anti-pitching floating bodies can be realized, the performance in the respective effect area can be improved, the mutual interference control effect can be prevented, and the anti-pitching effect is optimal.

The invention discloses a polarization-maintaining ASE light source with an intensity noise cancellation function and a fiber-optic gyroscope. Output tail fibers of the polarization-maintaining ASE light source are connected with optical paths of the fiber-optic gyroscope respectively, and then intensity noise cancellation of the light source can be achieved. According to the polarization-maintaining ASE light source, the optical integrator is adopted to replace an isolator, a filter and a 50: 50 coupler, the optical integrator has the functions of isolation, filtering, polarization and lightsplitting, linearly polarized light is output, the number of optical devices can be effectively reduced, and the structural complexity of the ASE light source is greatly reduced. Light output by the optical integrator is linearly polarized light, the insertion loss of the optical integrator is small, the index requirements for the splitting ratio and polarization of the two polarization-maintaining couplers behind can be reduced, the whole structure is easy to achieve, and the machining cost can be reduced. Moreover, the splitting ratios of the two polarization maintaining couplers can be matched and adjusted according to the lengths of different optical fiber rings, and the structure is flexible.

The invention provides a remote control device for a vehicle key. The remote control device is used for solving the technical problem of how to remotely control and unlock a vehicle door. The remote control device for the vehicle key structurally comprises a key storage bin, a key key pressing mechanism and a controller, the appearance of the key storage bin is matched with the appearance of a vehicle key. The key key touch pressing mechanism is provided with two groups of pressing components; the setting positions of the two pressing components are respectively aligned with the setting positions of an unlocking key and a locking key on a vehicle key placed in the key storage bin; the pressing stroke of the pressing component meets the requirement that the unlocking key or the locking keyis triggered and returns to the original position in time after the unlocking key or the locking key is triggered. And the controller is electrically connected with a driving device of the key key pressing mechanism. The vehicle door can be remotely unlocked.

The invention discloses a vacuum pressurization impregnation apparatus for preparing a ceramic matrix composite material through a PIP method. The vacuum pressurization impregnation apparatus is characterized by comprising an impregnation device 60, a water bath heating device 70, a pressurizing device 10, a vacuuming device 20 and a power control device 90, wherein the pressurizing device, the vacuuming device and the impregnation device are connected by stainless steel pipes; the water bath heating device wraps the periphery of the impregnation device and can be used for heating the impregnation device, the pressurizing device is a pressurizing pump, the vacuuming device is a vacuum pump, and the power control device sequentially controls the impregnation device, the water bath heating device, the pressurizing device and the vacuuming device through a power line. The vacuum pressurization impregnation apparatus has the beneficial effects that (1) the vacuum, pressurizing and water bath heating impregnation methods are combined to effectively improve the efficiency of impregnating a fiber prefabricated member in a precursor in the process of preparing the ceramic matrix compositematerial by PIP; (2) the operation is simple and the device structure is easy to realize; (3) through water bath heating, a precursor solution can be heated uniformly, stably and gently, thereby improving the impregnation efficiency and quality of the precursor solution.

The invention relates to an intelligent automatic telescopic spray irrigation device which comprises a first pipe, a second pipe and a third pipe which are sequentially connected in a sleeving manner.A water inlet is formed in the bottom of the first pipe, a first piston is connected at the end, positioned in the first pipe, of the second pipe and connected with the second pipe in a threaded manner, a first spring is arranged in the first pipe and positioned on the periphery of the second pipe, a second piston is connected at the end of the third pipe positioned in the second pipe and connected with the third pipe in a threaded manner, a second spring is arranged in the second pipe and positioned on the periphery of the third pipe, a lighting device is arranged at one end, far away from the second pipe, of the third pipe, an annual sprayer is arranged at one end, close to the lighting device, of the third pipe, and spraying holes are formed in the sprayer. Compared with the prior art,the device has the advantages that the device is reasonable in structure and convenient to implement, intelligently and automatically extends and contracts and has a lighting function.

The invention discloses a soldering flux spraying system for wave soldering, which comprises a spraying unit (1). The system is characterized in that a power unit (2) is arranged on the outer side ofthe spraying unit, one end of the power unit is provided with a fixed guide rail (3), a slide block (4) of the fixed spraying unit (1) is arranged on the fixed guide rail (3), and the power unit and the block connected with a driving block slide along the fixed guide rail. The sliding of the spraying unit is realized by the arrangement of the fixed guide rail and the slide block of the fixed spraying unit, so the device has the advantages of small vibration and noise and stable operation in use; and the device has multiple types of sprayers with different diameters so as to realize the regulation on multiple flow rates, so that the atomization effect is more even.

The invention discloses a structure for increasing one-way gain by side pumping and an implementation method. A non-absorptive cladding material is bonded on the outer side of a gain medium, so that pumping light is reflected on an upper reflecting surface, a lower reflecting surface and side surfaces of a cladding; and the two side surfaces have a relative angle, the light travels back and forthalong the gain medium while being reflected by the side surfaces, so that the light can pass through the gain medium for multiple times, the absorption of the gain medium is increased, and the size ofthe gain medium is effectively reduced while the pumping light absorption frequency is increased. Because the pump light is reflected for multiple times and passes through the gain medium, the energydistribution of the pump light is more uniform, the cladding material has high thermal conductivity, the temperature gradient of the gain medium can be effectively reduced, the possibility of damaging a device is reduced, and the quality of an output light beam is improved.