6540results about How to "Improve job stability" patented technology

The invention relates to an optical spectrometer and a calibration method thereof. The optical spectrometer comprises a monochromator used for dividing the measured light into monochromatic lights, a photomultiplier used for receiving the monochromatic lights; the monochromator and the photomultiplier are optically connected. The photomultiplier is electrically connected with a microcontroller by a signal processing circuit. The optical spectrometer is characterized by further comprising a reference light source used for creating reference light; the reference light source which is alight-emitting diode is connected with the micro-controller. Compared with the prior art, the optical spectrometer and the calibration method thereof have the advantages as follows: 1. reasonable design, simple structure and large measuring dynamic range are ensured; 2. the absolute sensitivity of the photomultiplier is reasonably calibrated, therefore, the response linearity of the optical spectrometer is good; 3. thermostatic control is carried out to a reference detector, the reference light source and the photomultiplier, thus effectively enhancing the work stability of the optical spectrometer; and 4. the performance of the optical spectrometer is substantially enhanced under the condition that a small amount of cost is increased.

The invention relates to a method and a device for measuring fine distribution of sample surface shape by white-light interferometry. The method comprises the following steps: respectively projecting a white light beam on the surfaces of a sample and a reference mirror; combining the reflected light beams of the two surfaces to obtain one beam, and projecting the beam on the photosensitive surface of a CCD camera to obtain interference fringe; and changing the pitch between the sample and an objective lens to form a plurality of interference images on the photosensitive surface, inputting the interference images into a computer to obtain the cosine distribution of amplitude modulation signals relevant to spectral distribution of a light source, sampling the discrete values of the plurality of amplitude modulation signals by an unequal interval sampling method, and calculating the relative height of the sample surface. The measurement device is composed of the light source, a transflective spectroscope, the CCD camera, an interference microscope objective lens, a sample stage, etc., wherein the spectroscope divides the light beam of the light source into a reflective beam and a transmissive beam; the CCD camera and the interference microscope objective lens are respectively arranged on a transmissive optical axis and a reflective optical axis; the CCD camera is control-connected with a computer; and the interference microscope objective lens can be controlled by the computer to make up-and-down movement.

The invention proposes a bootstrap voltage refresh control circuit, a voltage converting circuit and a relevant control method. The bootstrap voltage refresh control circuit detects the bootstrap voltage in the voltage converting circuit, provides the enhanced on-off driving signal for a high side switch of the voltage converting circuit based on the bootstrap voltage, and controls the charging of the bootstrap voltage through controlling the on-off switch of the high side switch and a low side switch of the voltage converting circuit based on bootstrap voltage. The bootstrap voltage refresh control circuit can recover the bootstrap voltage in time through adjusting the on-off switch of the high side switch and the low side switch when the bootstrap voltage is insufficient, without increasing more switch devices. The voltage converting circuit comprising the bootstrap voltage refresh control circuit has excellent work stability, and the circuit can work normally when the input voltage and the output voltage are closer, and the circuit has smaller power consumption.

The invention discloses a smoke exhaust blockage control method of a gas water heater and a control system thereof. The controller drives and controls the blower rotating speed of the gas water heater by changing the drive current, judges whether the smoke exhaust resistance of the water heater exceeds the warning limit based on the real-time monitoring on the blower rotating speed, closes the gas passage of the water heater and warns the water heater user when the smoke exhaust resistance exceeds the warning limit, and judges whether air supply for compensation is necessary when the smoke exhaust resistance is lower than the warning limit. The invention aims to provide the detecting method for judging the smoke exhaust condition at the air outlet by detecting the blower rotating speed, and the control method and the control system for controlling to improve the combustion working condition of the constant-temperature gas water heater in case of smoke exhaust blockage and improve the working stability of the water heater.

The invention mainly aims to provide a variable structure adaptive feed type rope saw for cutting composite pipes with different diameters amphibiously. The rope saw consists of a clamping mechanism, a cutting mechanism, a feeding mechanism and a tensioning mechanism; the clamping mechanism comprises a V-shaped plate, the V-shaped plate is formed by folding two mutually independent half plates, each half plate is connected with respective sliding block, and the sliding block and a guide rail I form a sliding pair; the two half plates fixed on respective sliding blocks can move relatively in the radial direction along the guide rail I; the half plates are connected with a hydraulic cylinder respectively, and the hydraulic cylinder is connected with a control system; and the lower ends of the half plates are connected with clamping claws through fixing pins, and the rear ends of the clamping claws are connected with the hydraulic cylinder. The rope saw is suitable for the pipes with diameters of phi 300 to phi 1,500 millimeters, so the diameter range of the cut pipes is greatly expanded; and meanwhile, different cutting speeds can be automatically adjusted according to different cutting states to adapt the rope saw, and the cutting efficiency is improved.

The invention discloses a real-time adjustable and controllable hanging type underground oil and water separating system, which comprises an underground sleeve pipe, a water injection oil pipe, an oil extracting oil pipe and a flow rate control valve, wherein the flow rate control valve is arranged at the wellhead part, the aboveground ground is provided with a visual control device, a hanging type three-way joint connected with the oil extracting oil pipe, an oil and water separator and the water injection oil pipe is arranged in the sleeve, the oil and water separator is connected with an electric submersible pump unit, a water injection pressure regulating device is arranged on the water injection oil pipe, a flow rate and pressure monitoring instrument is arranged in the electric submersible pump unit, a flow rate and pressure monitoring instrument and a regulating valve are arranged in the flow rate control valve, monitoring instrument cables and signal transmission cables are respectively connected among the electric submersible pump unit, the water injection pressure regulating device, the flow rate control valve and the visual control device, the visual control device converts received real-time flow rate and pressure signals into visual data to be output, and the work of the whole system is regulated and controlled. The hanging type underground oil and water separating system has the advantages that the stability is high, the treatment capability is high, and the hanging type underground oil and water separating system can be widely applied to an oilfield same-well production injection process.

The invention relates to a voice signal quantum encryption communication system based on a random number, which comprises terminal equipment, a quantum communication access point, a quantum communication gateway and a quantum communication access point, wherein the terminal equipment consists of a terminal sending subsystem and a terminal receiving subsystem; the terminal sending subsystem comprises a quantum key agreement and management module, a voice signal encoding module, a random number generation module, a voice encryption module and a digital modulation module; and the terminal receiving subsystem comprises a voice signal decoding module, a quantum key agreement and management module, a voice decryption module and a digital demodulation module. One piece of terminal equipment simultaneously comprises the terminal sending subsystem and the terminal receiving subsystem. According to the invention, the terminal sending subsystem is applied to send a voice signal with good encryption performance and high anti-interference performance and meanwhile, the terminal receiving subsystem is utilized to receive and reduce the voice signal, so that safety and integrity in the communication process are ensured.

The invention provides a shift register unit, a shift register circuit, an array substrate and a display device and relates to the field of manufacturing of displays, wherein the shift register unit, the shift register circuit, the array substrate and the display device can be used for reducing the bias voltage action time of a noise transistor without affecting the circuit stability, thereby prolonging the service life of devices. A shift register comprises a capacitor, a first transistor, a second transistor, a third transistor, a fourth transistor, a fifth transistor, a sixth transistor and a denoising control module. The shift register unit, the shift register circuit, the array substrate and the display device are used for manufacturing the displays.

The invention provides a top gate self-alignment metal oxide semiconductor TFT and a manufacturing method therefor. According to the manufacturing method of the top gate self-alignment metal oxide semiconductor TFT, a light shielding layer is arranged below an active layer, so that the active layer can be protected from light ray irradiation, and a threshold voltage negative floating phenomenon ofthe TFT can be avoided; and in addition, the light shielding layer is connected to a source, so that a stable voltage is generated on the light shielding layer to avoid generation of a floating gateeffect, thereby effectively improving operational stability of the TFT. The top gate self-alignment metal oxide semiconductor TFT, prepared by the abovementioned method, does not generate the threshold voltage negative floating phenomenon and the floating gate effect and has relatively high working stability.

The invention relates to a two-dimensional high load-bearing large-caliber rapid control reflector. An outside surface of a rotating body and an inside surface of a supporting reflector frame of the reflector are both one part of a sphere surface. The two components are assembled in a mode that the spheres share the same spherical center and are in rigid connection with each other by a ball to form a rotary assembly similar to a bearing. The rotating body can universally rotate in the supporting reflector frame. Therefore, under the driving of a linear voice coil motor, the invention can realize high-frequency rapid two-dimensional rotation of the rotating body in the reflector frame and guarantees working stability and reliability of the rapid control reflector. On the other hand, the loads of rotating parts including a plane mirror is rigidly supported by the supporting reflector frame through the ball, which greatly improves bearing capacity and environmental suitability of the rapid control reflector.

The invention discloses a high-voltage lithium cobalt oxide cathode material for a lithium-ion battery and a preparation method of the high-voltage lithium cobalt oxide cathode material. The high-voltage lithium cobalt oxide cathode material is prepared from a doped lithium cobalt oxide matrix and a coating on the surface of the doped lithium cobalt oxide matrix, wherein a general formula of the doped lithium cobalt oxide matrix is Li<x>Co<1-y>M<y>O<2-z>N<z>; the general formula of the coating is LiNi<x'>Co<y'>Al<z'>O<2>; and the preparation method comprises the following steps: firstly, obtaining the lithium cobalt oxide matrix Li<x>Co<1-y>M<y>O<2-z>N<z> through once sintering; secondly, preparing a lithium cobalt oxide cathode material precursor coated with Ni<x'>Co<y'>Al<z'>(OH)<2> on the surface by liquid-phase co-precipitation reaction; and finally obtaining the high-voltage lithium cobalt oxide cathode material through twice sintering. The high-voltage lithium cobalt oxide cathode material prepared by the method is good in processability and high in compaction density, has relatively high specific capacity and good cycle performance in a high-voltage state, and can be stably circulated at high voltage of 3.0V to 4.5V.

The invention discloses a safe self-destroying vaccine syringe, which is characterized in that the side wall of a rod body at the end part of a core rod is provided with a transverse gap which is communicated with a longitudinal gap at the rod body of the end part of the core rod; the transverse gap is matched with the longitudinal gap; a needle consists of an upper hub and a lower hub which are sleeved with each other; an inner cavity of the lower hub is hollow; the lower hub is of a cylindrical structure; and the inner wall of the lower hub relative to the other end opening for mounting the upper needle stand is provided with a convex rid of the lower hub. The safe self-destroying vaccine syringe has the advantages that the whole vaccine syringe has a reasonable structure, completely accords with various international standards, controls liquid medicine accurately, can achieve high degree automatic mass production during assembling, effectively improves production efficiency, reduces manufacturing cost, has high working stability in actual use experiments, can effectively prevent the syringe from accidentally injuring medical staff and other correlative staff during operation, and also puts an end to the secondary recycle of a disposable vaccine syringe.

The invention provides an electronic cigarette atomizer, which comprises an oil storage cavity used for storing smoke tar and an atomizing component used for sucking the smoke oil from the oil storagecavity and heating and atomizing the smoke oil; the atomizing component comprises a porous ceramic layer, a compact ceramic layer and a heating element which are sequentially stacked; the porous ceramic layer has a first surface opposite to the compact ceramic layer and a second surface opposite to the first surface; the compact ceramic layer is bonded to at least a portion of the first surface and the second surface is configured as an oil-absorbing surface in contact with the smoke oil. With the adoption of the electronic cigarette atomizer provided by the invention, the smoke oil is soakedand absorbed and conducted in the laminating direction of the porous ceramic layer and the compact ceramic layer in the atomizing component, so that the conduction efficiency of the smoke oil is greatly improved; the smoothness and bond stability of the heating element are better so that the problems that the resistance of the heating element is unstable to float and cannot be conducted even whenthe heating element is broken are solved; and the whole working stability and the service life can be obviously improved.

The invention discloses a high strength steel plate hot stamping die for automobile parts. The high strength steel plate hot stamping die for the automobile parts mainly consists of a male die body (a male die and a male die connecting fixing plate), a female die body (a female die and a female die connecting fixing plate), blank holders, cooling pipelines, connecting devices, positioning devices, U-shaped connecting hoses and pipe joints. The male die, the male die connecting fixing plate, the female die, the female die connecting fixing plate and the blank holders are respectively manufactured, and grooves used for fixing the cooling pipes are respectively processed. The cooling pipelines are manufactured into shape-following cooling pipelines which are consistent with the shape trends of the parts by adopting copper pipes, are respectively arranged in the grooves respectively arranged in the male die body, the female die body and the blank holders, and are externally connected with a master cooling pipeline through the U-shaped connecting hoses and the pipe joints to form a cooling closed loop. The hot stamping die disclosed by the invention is simple and compact in structure and convenient in maintenance, is reliable and practical, can be used for evenly and rapidly cooling the parts during a stamping process and is in favor of enhancing the working stability per se and prolonging the service life per se.

The invention discloses a dual-mode optical coding probe and a preparation method thereof. The probe is in a three-layer core-shell structure, the first-layer core is a gold nano bar, the second-layer shell is silica, the third-layer shell is a cadmium telluride quantum dot, the second-layer shell is wrapped on the outer side of the first-layer core, the third-layer shell covers the outer side ofthe second-layer shell in a sticking mode, and the outer surface of the first-layer core is stuck with Raman molecules which are wrapped by the second-layer shell. The preparation method of the dual-mode optical coding probe comprises the following steps of: 1, preparing an original gold nano bar solution; 2, preparing gold nano bars marked by the Raman molecules; 3, preparing a gold nano bar andsilica metal medium composite nano ball solution; and 4, preparing the dual-mode optical coding probe. The dual-mode optical coding probe has the joint encoding capacity of fluorescence and SERS (Surface Enhanced Raman Scattering), and enhances the optical coding capacity. The preparation method of the dual-mode optical coding probe has a simple process and high repeatability.

The invention discloses a method for eliminating DC harmonic voltage for the grid-side converter of a double-fed wind power generator in the case of asymmetric power grid. The method adopts a phase-shift T/4 delay negative sequence fast separation method, which performs positive-negative sequence separation on the voltage and current of the three-phase power grid, wherein the positive-negative sequence separation method has simple calculation which only includes addition, subtraction, multiplication and division, fast response that the positive-negative sequence component can be worked out only in 5 m and small delay which facilitates the design of PI parameters. In order to obtain good control effect, the positive-negative double-dq current control with completely symmetric structure is adopted. Therefore, the positive-negative sequence current instructions are both DC components and the PI regulator can realize floating control.

The method includes steps: parsing object to be tested, picking up tested information from the object tested; displaying the picked test information, receiving test information input from user; generating test case based on the picked test information and the inputted test information; combining the test case and object to be tested creates testing target codes; running the testing target codes implements test for robustness of software product. The invention also related to device for testing robustness of software product. The invention can realizes automatic generation and automatic extraction for test information of tested object.

The invention discloses a power supply management chip for controlling a two-phase Buck circuit having a current equalization function based on COT. The power supply management chip is provided with a power supply input pin, an output voltage pin, a grounding pin and two switch SW pins. The chip is internally provided with a reference circuit module, a comparator module, a voltage ring module, a clock generation module, a control logic and soft start module, a constant conduction time generation module, a ripple compensation module, a current sampling module, a current equalization module, a driving module and four in-chip switching tubes. According to the power supply management chip, multiple asymmetric factors can be effectively overcome to realize current equalization so that the precision is high, the power supply management chip can work under high switching frequency, and energy loss is less and area occupation is smaller in comparison with the conventional method of digital control matching duty ratio.

The invention relates to a system for online monitoring faults of an electric power line. The system comprises a remote terminal device and a monitoring master station, wherein the remote terminal device comprises a fault indicator and a line fault data collector which are in communication connection by an RF (radio frequency) network, the monitoring master station comprises a handheld mobile terminal and a microprocessor control terminal, the line fault data collector communicates with the data receivers of the handheld mobile terminal and the microprocessor control terminal through a GSM/GPRS (global system for mobile/general packet radio service) communication module by a mobile communication network, and the upper computer of the microprocessor control terminal communicates with the handheld mobile terminal through a GSM/GPRS generating and receiving data module of the data receiver by the mobile communication network. According to the system, intelligent monitoring is realized; in the manners of on-site indication and remote fault alarm, the fault types and fault points are confirmed, the faults are located accurately and timely; as two terminals are adopted, the faults are alarmed timely, reasonable dispatch is realized, the fault elimination efficiency is improved, and the power distribution reliability is improved.

The invention relates to a wire strander which is particularly applicable for cable production. The strander comprises a frame and a wiring disc arranged on the frame. A rotating shaft which can rotate relatively with respect to the frame is fixed at the center of the wiring disc and is connected with a drive mechanism. A take-up device fixed on the frame is installed at the side of the wiring disc. The strander is characterized in that a plurality of coil holders are installed at two sides of the wiring disc; the heads of the wire coils on the coil holders at one side of the wiring disc can run through the wiring disc and reach the other side of the wiring disc. Compared with prior art, the strander has the advantages that: 1, the coil holders are reasonable in arrangement, thus increasing the number of the coil holders; the whole structure is compact in structure and low in cost and is easy to operate; 2, the feed pitch can be flexibly adjusted according to needs and the wires arranged on the strander will not be mixed up, so work stability is good and efficiency is high; 3, the feed pitch can be adjusted according to needs, so various products with different specifications can be produced, thereby the wire strander is widely applicable.

The invention discloses an aluminum electrolysis cell cathode structure of horizontal current in controllable regulation aluminum liquid. A continuously or partially bulged cathode steel bar is used or a cushion material with high electric conductivity is cushioned at the partial position between a common rectangular steel bar and a cathode carbon block, so that the distribution and the size of the horizontal current in the aluminum liquid can be readjusted by the cathode structure. Structural parameters are determined by the cathode structure according to an actual groove-type design, the horizontal current in the aluminum liquid can be obviously reduced when the cathode structure is used in an aluminum electrolysis cell, and the distribution of the horizontal current in the aluminum liquid can be optimized to prevent an area with higher horizontal current density from being superposed with an area having a larger vertical magnetic field, so that the effects of weakening the vertical fluctuation of the aluminum liquid and stabilizing the horizontal motion of a melt are achieved; therefore, electrolysis can be operated within a relatively short electrode distance, energy consumption can be reduced greatly, and the cathode structure is easy and convenient to process and is easy to realize.

The invention discloses a broad-spectrum-filtration vibration-absorbing silencer of a hydraulic system, which comprises an oil opening, a vibration absorber shell, upper and lower partition boards, resonance plate springs and damping holes. The broad-spectrum-filtration vibration-absorbing silencer of the hydraulic system has a structure that: the expandable cavity type vibration absorber shell is fixed with the upper and lower partition boards through welding; each partition board is provided with a plurality of triangular holes; the insides of the holes are sealed and fixedly connected with the resonance plate springs through flexible bodies; and the resonance plate springs hold mass bodies of different masses respectively and the damping holes are drilled in the resonance plate springs, so that the resonance plate springs holding different mass bodies and the damping holes form 'quality + spring + damping' lumped parameter type coupling spring vibration systems and the coupling spring vibration systems have respective natural frequencies. The structure can meet working condition requirements of hydraulic oil such as high pressure, stable high flow, low compressibility, corrosion resistance and the like and has better broad-spectrum filtration effects in both low and mediate frequency ranges.

The invention discloses a full-automatic winding machine for wireless-charging coils. The full-automatic winding machine comprises a frame, a die head driving device, a wire arranging mechanism, a wire storing mechanism, a horizontal sliding mechanism, a longitudinal sliding mechanism, a vertical lifting and sliding mechanism and a discharging mechanism. The wire arranging mechanism is arranged on one side of the frame. The die head driving mechanism is arranged on the other side of the frame and is abutted against a die head of the wire arranging mechanism. The longitudinal sliding mechanism is arranged above the wire arranging mechanism through the horizontal sliding mechanism. The wire storing mechanism is arranged on the longitudinal sliding mechanism through the vertical lifting and sliding mechanism. The discharging mechanism is arranged between the wire arranging mechanism and the die head driving device. The full-automatic winding machine is ingenious and reasonable in design, smooth in operation, high in accuracy, high in working efficiency and good in winding quality; the die head of a split movable structure is arranged detachably, is convenient to mount and demount and has universality and interchangeability, and only replacement of proper die heads is needed for winding of different products, so that production cost is reduced, and production efficiency is improved; the full-automatic winding machine is applicable to winding of multilayer coils and wide in application range.