62results about How to "Realize fine adjustment" patented technology

The invention relates to the field of chemical vapor deposition equipment, and particularly relates to a process chamber air distribution adjustment-oriented chemical vapor deposition (CVD) equipment spray header. A plurality of step spray holes are formed on the spray header; each spray hole is formed by a round hole with a larger diameter at the upper part and a round hole with a smaller diameter at the lower part; one or more parameters of the step depth, the large hole aperture and the small hole aperture are gradually increased from the center of the board of the spray header to the edge, so that gradual reduction of impedance on a board of the spray header from the center to the edge is achieved, the expected air circulation is gradually increased, and adjustment of impedance distribution on the board of the spray header is achieved. Thus, air distribution adjustment inside the process chamber is achieved. The process chamber air distribution adjustment-oriented CVD equipment spray header is cheap in design scheme, and high in efficiency, and fine adjustment of air distribution inside the process chamber is achieved just by continuous design on the small hole configuration of the spray header. Thus, fine adjustment of process and quality distribution is achieved.

The invention provides a piezoelectric-liquid-actuated elastic-membrane-position electric feedback two-stage servo valve and a control method thereof and belongs to the field of microfluid control. The servo valve and the control method solve the problem of poor reliability of an existing small flow and micro-flow control servo valve. The piezoelectric-liquid-actuated elastic-membrane-position electric feedback two-stage servo valve comprises a main valve body, a fixing damping hole, a balancing spring, a valve core, a guide valve body, two adjustable orifices, a piezoelectric-liquid-actuated elastic membrane component, a servo valve controller, a displacement sensor, five flow channels and a slide valve cavity. The method includes that the size and the direction of piezoelectric patch deformation are controlled by the aid of size and positive and negative control of piezoelectric patch input current of the piezoelectric-liquid-actuated elastic membrane component, so that the piezoelectric-liquid-actuated elastic membrane component generates small displacement, equivalent liquid resistance of the left adjustable orifice and the right adjustable orifice is changed, and further differential pressure is formed at two ends of the valve core until a displacement feedback signal of the valve core is equal to a given input signal. The servo valve and the method are applicable to small and microfluid control.

The invention relates to a zone control system for the temperature in a carriage. The zone control system for the temperature in the carriage comprises an air conditioner system, and further comprisesan environment control host, a plurality of in-vehicle temperature sensors and a plurality of zone setters, wherein the environment control host is connected with the air conditioner system in the carriage, and is used for transmitting control commands for the air conditioner system; the in-vehicle temperature sensors are configured to detect current temperatures of various zones in the carriageand transmit detection results to the environment control host; the zone setters are correspondingly arranged in the various zones, are connected with the environment control host through a communication network, and are configured to set or adjust the set temperatures of the zones in which the zone setters are located; and the environment control host adjusts running of the air conditioner systemaccording to the set temperatures, and enables the temperatures of the various zones of the carriage to reach or be close to the set temperatures. The invention further relates to a zone temperature-adjusting method using the zone control system for the temperature in the carriage. The carriage is divided into a plurality of zones, and the temperature of each zone is adjusted independently to meet demands of users.

Embodiments of the present invention relate to the field of electronic technologies, and disclose a bright screen duration adjustment method and a mobile terminal. The method comprises: detecting, by the mobile terminal, a touch operation input on a touch screen, obtaining a touch parameter of the touch operation, generating a bright screen duration adjustment command according to the touch parameter, responding to the bright screen duration adjustment command, and adjusting a current bright screen duration of the mobile terminal to a target bright screen duration that matches the touch parameter. According to the embodiments of the present invention, when detecting a pressing or slide operation on the touch screen, the mobile terminal adjusts the bright screen duration according to a duration or strength of the pressing or slide operation, thereby implementing meticulous adjustment on the bright screen duration, and improving bright screen duration adjustment efficiency of the mobile terminal.

The invention relates to a sinter return fine adjustment method, which comprises the following steps of: respectively acquiring material level conditions of two material tanks for storing return fine; selecting no reduction of a return fine ratio, no increase of the return fine ratio or allowance of adjustment according to the material level conditions of the two material tanks; calculating a material level change rate of the material tanks in preset time, and calculating a return fine ratio adjustment quantity according to the material level change rate and an average total feeding quantity; if selecting the allowance of adjustment, adjusting the return fine ratio according to the return fine ratio adjustment quantity; if selecting no reduction of the return fine ratio and the ratio adjustment quantity is positive, adjusting the return fine ratio according to the return fine ratio adjustment quantity; and if selecting no increase of the return fine ratio and the ratio adjustment quantity is negative, adjusting the return fine ratio according to the return fine ratio adjustment quantity. The invention also provides a sinter return fine adjustment system. The method and the system realize refined adjustment of the return fine and meet the requirement of uniformly using the return fine.

The invention belongs to the field of aviation engines, and discloses a multifunctional box type detachable rotational flow distortion generator. The multifunctional box type detachable rotational flow distortion generator is composed of box body circular flow guiding plates (3), box body circular connecting plates (4), a distortion generator front box body (5), a distortion generator rear box body (6) and a flow guiding basin (7), wherein a plurality of the box body circular connecting plates (4) form a bilaterally symmetrical flow guiding assembly with a certain opening angle reserved at theupper and lower ends. The novel multifunctional box type detachable rotational flow distortion generator is suitable for simulating various rotational flow distortion forms, can realize rotational flow distortion with single vortex intensity of 40 degrees, pair vortex intensity of 20 degrees and multi-vortex intensity of 10 degrees through adjusting the different connecting plates, and can meet the requirement for simulating rotational flow distortion at an outlet of a common air inlet pipe. The connecting plates of the flow guiding assembly are detachably connected by means of bolts, and thestructural design realizes limited disassembly and assembly during the assembly and testing process of parts.

The invention discloses a reactive voltage control method and system in a wind power plant. The method comprises the following steps that: according to wind power prediction information, an upper layer utilizes an objective function to adjust the reactive voltage to be controlled in the wind power plant to be within a feasible range, and according to the reactive voltage acquired at the current moment and the reactive power of the wind power plant, a lower layer utilizes a formula to calculate a reactive power reference value of the wind power plant, and droop control is carried out on the reactive voltage in the wind power plant according to the reactive power reference value of the wind power plant. The system comprises an upper-layer control module and a lower-layer control module. According to the invention, clean energy can be utilized to the greatest extent, and quick response of voltage control is realized, so that the reactive voltage control efficiency is improved.

The present invention discloses an orchard pipeline precise fertilizer injection control device and a control method. The device comprises a pressure transmitter, a signal conditioning circuit, a single chip microcomputer, a display device, a solenoid valve driving circuit, a solenoid valve, a keyboard circuit and a power supply circuit. The power supply circuit, the signal conditioning circuit, the keyboard circuit, the display device and the solenoid valve driving circuit are connected to the single chip microcomputer. The power supply is also connected to the pressure transmitter and the solenoid valve. The solenoid valve is also connected to the solenoid valve driving circuit. The signal conditioning circuit is connected to the pressure transmitter. Through presetting the fertilizer injection amount of pipeline fertilizer injection, when the pileline fertilizer injection is carried out, a pressure sensor collects the pressure in a liquid fertilizer pipeline and transmits the pressure to the single chip microcomputer, according to the pipeline liquid fertilizer pressure and a preset fertilizer injection amount, the single chip microcomputer calculates the needed fertilizer injection time through a software program, the opening duration time of the solenoid valve is controlled according to the fertilizer injection time, when the fertilizer injection amount reaches a desired value, a fertilizer injection gun is closed automatically, and the precise fertilizer injection of fruit trees is realized.

The invention discloses a toothed weir type impact reducing and uniform fluid distributing plate and belongs to the field of chemical equipment. The toothed weir type impact reducing and uniform fluiddistributing plate comprises a tray and distributors arranged on the tray, wherein each distributor comprises a uniform fluid distributing plate, a material lowering pipe and connecting rods, and theuniform fluid distributing plate is arranged above the material lowering pipe and connected with the material lowering pipe through the connecting rods. The toothed weir type impact reducing and uniform fluid distributing plate has the characteristics of impact reducing and uniform fluid distributing functions, good distribution effect, small size, low mounting precision requirement and the like.

The invention discloses a clamping balance lockable regulator pin fine tuning mechanism including a balance cock, a hairspring outer pile, a hairspring, an antivibrator, a balance, and an regulator pin mechanism, the balance cock is fixed on the movement of a mechanical watch, the inner end of the spring is connected at the balance shaft, the regulator pin mechanism includes an regulator pin body, a hairspring clamp, an regulator pin connecting rod, and a fine tuning screw with a big cap and a small eccentric shaft, the hairspring outer pile, the regulator pin body, and the regulator pin connecting rod sleeve the balance cock via the antivibrator, the hairspring penetrates into the hairspring clamp, the outer end of the hairspring is fixedly connected with the hairspring outer pile, and the hairspring clamp is composed of a hairspring fixed lock flap and a hairspring movable lock flap. The hairspring outer pile and the regulator pin can be fixed and also are convenient to adjust, the hairspring and the hairspring clamp are firmly clamped, so that the rapid coarse registration adjustment and fine registration adjustment of the regulator pin position can be facilitated, the structure is reasonable, and the efficiency for watch time-travelling accuracy adjustment and calibration is improved.

The invention relates to the technical field of highway pavement accelerated loading tests and particularly relates to a circulating driving device for a highway pavement accelerated loading test system. The device comprises a guide rail; the guide rail is fixed on an outer frame; a chain wheel is fixedly installed in the middle of the guide rail; six annular supporting frames which are distributed at intervals are arranged on the chain wheel; and a front supporting plate is arranged at the front end of the annular supporting frame. The circulating driving device for the highway pavement accelerated loading test system has the beneficial effects that through cooperation of a movable side plate and an electric telescopic rod, coarse adjustment of the length of an inner cavity of the annularsupporting frame is achieved, the space in the annular supporting frame is suitable for mounting of a loading wheel, the steps of dismounting and mounting are reduced, the replacement process is simplified, and the detection efficiency is improved; the adjusting support is matched with a hydraulic cylinder, so that fine adjustment of the inner cavity space of the annular supporting frame is achieved, the situation in which the vibration amplitude is increased due to the fact that the inner space is too large is prevented, meanwhile, the position of the loading wheel is adjusted through the hydraulic cylinder, and linear loading is achieved through contact between the loading wheel and the ground.

The invention relates to a wireless multifunctional data collector for energy-saving monitoring, and the collector comprises a signal collection module which is used for receiving various collected signals, the signal collection module comprising a one-way collection unit and a two-way collection processing unit, the one-way collection unit being used for collecting current, voltage, active power and power factors, two-way collection processing unit comprising a serial port level conversion processing unit, an Ethernet transmit-receive management unit and a hand-held terminal acquisition unit; acontrol module, used for processing the signal received by the signal acquisition module; a transmission module, used for transmitting the signal processed by the control module; and an upper computer, used for receiving the transmitted signal and adjusting the acquisition frequency of the bidirectional acquisition processing unit in the signal acquisition module according to the data volume of the transmitted signal. By effectively adjusting the data volume, the matching between the data processing speed and the accuracy of the evaluation result is realized, so that the energy-saving monitoring process is more efficient actually.

The invention discloses a posture adjusting mechanism for a pod dynamometer. The mechanism comprises a flange, a rotation posture adjusting mechanism is installed at the bottom of the flange, a through hole is formed in the middle of the rotation posture adjusting mechanism, a supporting rod inner shaft of the pod dynamometer is installed concentric with the through hole, a transition plate is fixed to the bottom of the rotation posture adjusting mechanism through a fastener, a six-component balance is installed at the bottom of the transition plate, a trim posture adjusting mechanism is installed at the bottom of the six-component balance, and an inner shaft of a supporting rod of the pod dynamometer penetrates through the middle of the six-component balance and the middle of the trim posture adjusting mechanism at the same time. Through cooperative work of the trim posture adjusting mechanism and the rotation postureadjusting mechanism, comprehensive adjusting means and high adjusting precision can be achieved, the yaw angle of the pod dynamometer can be automatically adjusted, the adjusting precision is extremely high, fine adjustment of the trim angle of the pod dynamometer is achieved, adjustment of each degree of freedom is simple and convenient, and mutual coupling is avoided.

The invention discloses a hydrogenation reactor with an impact reduction assembly. The hydrogenation reactor comprises a material inlet pipe, an inlet diffuser, a reactor upper end socket, an impact-reducing flow-equalizing disc, a catalyst bed layer, a catalyst supporting grid, a reactor barrel, a reactor lower end socket, an outlet collector, a material outlet pipe and an unloading pipe. The impact-reducing flow-equalizing disc is arranged in the idle space of the upper end socket of the reactor or at the upper end of the reactor barrel; and the impact-reducing flow-equalizing disc comprisesan impact-reducing tower disc and a plurality of distributors arranged on the impact-reducing tower disc, each distributor comprises a grating, a material falling pipe and a connecting rod, the gratings are arranged above the material falling pipes, and the gratings are connected with the material falling pipes through the connecting rods. The hydrogenation reactor provided by the invention is suitable for a hydrogenation reaction process, especially a hydrogenation refining or hydrocracking process with a large reactor scale.

The invention relates to an endoscopic spine grinding head with a depth limiting function, and belongs to the technical field of medical instruments. The under-microscope spine grinding head with the depth limiting function comprises a grinding head assembly and a depth limiting assembly. A spiral groove is formed in the outer side of the grinding head assembly; the depth limiting assembly is slidably and rotatably arranged on the grinding head assembly in a sleeving mode and comprises balls which are matched with the spiral grooves and can move in the radial direction, so that the depth limiting assembly has the fine adjustment state that the balls move along the spiral grooves and the speed adjustment state that the balls are disengaged from the spiral grooves. According to the under-microscope spine grinding head with the depth limiting function, the ball rolls in the spiral groove, the depth limiting assembly is slowly and finely adjusted in the axial direction of the grinding head assembly, the ball is made to be separated from the spiral groove, and therefore the depth limiting assembly can be drawn back and forth in the axial direction of the grinding head assembly, long-distance rapid adjustment is achieved, different requirements can be met, and the working efficiency is improved. The grinding depth is accurately controlled, the surgery is more accurate, the fatigue of doctors is reduced, operation can be achieved with one hand, and the operation mode is simple and convenient.

The invention provides a cooking device and a method for adjusting the internal temperature of the cooking device. The cooking device comprises a heating cavity which is internally provided with a bearing part for containing food; a plurality of heating units which are distributed on the bearing part and are suitable for heating food placed on the bearing part; a temperature detection unit which is in communication connection with the heating units and is suitable for detecting the temperature of the positions, corresponding to the heating units, in the heating cavity; and a controller which is in communication connection with the heating units and the temperature detection unit. By means of the arrangement, opening and closing of the heating units at different positions can be correspondingly adjusted, then the heating temperatures of the different positions on the bearing part are adjusted, and the cooking and heating uniformity of food on the bearing part is improved. Due to the fact that the food to be heated is mainly placed on the bearing part, the heating uniformity of the cooking device on the different positions of the food can be improved, fine adjustment of the temperature on the bearing part is achieved, and the automation level of temperature adjustment is increased.

The invention relates to an aero-engine distortion generating device. The aero-engine distortion generating device comprises an elastic metal wire, a steering engine and a control system, the steering engine and the control system are arranged in an inner flow channel wall of an air inlet casing of the aero-engine, and the steering engine comprises a steering engine arm. The metal wire is wound into a spiral structure, most of the metal wire is arranged between the inner flow channel wall and the outer flow channel wall of the aero-engine air inlet casing, the inner end of the metal wire penetrates through an opening in the inner flow channel wall to be connected to the steering engine arm, and the outer end of the metal wire is fixed to the outer flow channel wall. The control system communicates with the steering engine to control the steering engine arm to swing, so that the inner end of the metal wire is pulled or pushed, and the radial distribution density of the metal wire is changed. The device has the following beneficial technical effects that the distortion net configuration can be adjusted according to different incoming flow condition requirements of the aero-engine, so that the radial distribution rule of different total pressures can be simulated.