133results about How to "Precise adjustment and control" patented technology

A system and method for the production and capturing of clean vapors from the vaporizing of a plant substance is described. The system includes a heating system configured to generate heat within a cooking unit. A temperature control system is configured to monitor the level of heat generated by the heating system. Both systems are regulated by a control unit. The control unit is configured to provide an interface for a user to regulate the performance of the temperature control system and the heating system. The cooking unit defines a fully enclosed volume to contain the heat generated. A valve body is in communication with the cooking unit and configured to regulate the release of gases within the cooking unit as it passes into a bag member. The bag member is used to capture released vapor generated by vaporizing the plant substance.

An active multimode optical fiber consisting of a first core section (11), a thin barrier layer (12) material having a thickness (d2) and a lower refractive index than that of the first core section by an index difference (Δn), a second core section (13) having a refrective index equal or higher than that of the first core section, and a cladding (14) having an index lower than that of the first core section. Said index difference and said thickness are selected so that a fundamental core mode couples less strongly with said cladding modes than higher order core modes. A scheme of changing the symmetry of the fiber for reduced sensitivity of the fundamental mode of the first core section to resonance effects.

Methods and apparatus for rate control in a dual pass encoding scheme are provided. A first pass encoder encodes alternate slices of anchor frames as I-slices and P-slices respectively in order to generate statistics for both I and P frame encoding for the same anchor frame. An initial complexity estimate for encoding a current frame is determined by the first pass encoder based on statistics from first pass encoding of the current frame and from first pass encoding of a prior encoded frame. A second pass encoder estimates an encoding complexity for the current frame based on the initial complexity and statistics from second pass encoding of the prior encoded frame. The second pass encoder then determines a bit budget for second pass encoding of the current frame based on the encoding complexity.

The present invention relates to artificial limbs generally and to joints for the same. In particular, the present invention provides hydraulic functional units, generally classified as damping devices as connected between artificial limbs whereby to enable movement of artificial joints to closely correspond with natural human movement. In the provision of realistic joints, as used in prosthetic limbs, an important aspect in attempting to achieve a realistic movement is to provide a different operating characteristic to the joint when under load. Indeed, one of the more important characteristics of an artificial leg for achieving a natural-looking walking gait correspond with those of a so called stabilised knee, i.e. a knee which resists flexion when under load, that is when it is bearing at least some of the weight of the amputee. In accordance with the invention, there is provided hydraulic damper control elements for prostheses which utilize a pressure differential due to the presence a fluid flow as a direct control input for a at least one hydraulic valve. The valve can comprise a moveable element which abuts a resiliently mounted element which reduces the size of an aperture as the force increases. Further, a moveable body acts upon the valve to enable an increase or decrease of flow of hydraulic fluid through the valve, whereby to enable an increase in gait by way of reduction of resistance to flow or to reduce or stop flow by way of a stumble recovery mechanism.

The invention provides a novel method and device for the nanocrystallization of surfaces to solve the problems of small machining area, long process time, complex equipment structure and the like. According to the technology, a simple power device is adopted for providing enough kinetic energy for a large number of small hard metal round spheres so that the round spheres can continuously impact the surface of a machined sample at a certain speed, severe plastic deformation happens on a certain depth region of the surface of the sample; the impact of the metal round spheres on the sample embodies certain uniform clustered spreadability, thereby the severe plastic deformation of the surface of a material is ensured to generally and relatively occur, the nanocrystallization modification of the surface of the material is realized, the special microstructure with gradient distributed grain sizes is obtained, and the performance of the material is increased. Simultaneously, the investment cost and the complexity level of the technology implementing device are reduced to the greatest extend, the range of service environments of the material is widened, and the industrial application process is promoted.

The invention discloses a deep processing method of urban recycled water by using it as industrial cycling cooling water comprising the steps of, the urban recycled water being collected and entering the recycled water pool, then entering pressure type mixer, entering into clarification tank, liming by wet method for softening, condensation, settlement and automatic de-sludging, the output water flowing into the circular double chamber filter, then entering clean water tank through pressure type mixer, the clean water being pumped to the cycling water pump discharge pressure tube after the compensator to be used for re-circulated cooling water system.

The invention provides a turn button control-adjustment method and system of a vehicle-mounted encoder. The potentials of a phase-A port and a phase-B port of an encoder circuit are collected every first preset time, and whether the collected potentials change in the first preset time is determined; if the potentials change, whether the phase-A port and a phase-B port output effective waveforms is determined, and if yes, the turning direction and adjustment amount of the turn button of the encoder are determined according to the effective waveforms, and a control and adjustment circuit implements corresponding adjustment. Thus, waveforms generated by jittering of a vehicle are prevented from interfering the turning and adjustment of the turn button of the encoder, and the vehicle-mounted encoder can realize accurate control and adjustment.

The invention discloses a combustion chamber based on the RQL principle and an aircraft engine with the same. The combustion chamber based on the RQL principle comprises a combustion chamber casing and a double-layer flame cylinder arranged in the combustion chamber casing, the inner cavity of the double-layer flame cylinder forms a fuel rich combustion zone, the double-layer flame cylinder comprises a flame cylinder head, a flame cylinder outer wall, a flame cylinder inner wall and a swirler, and a high-pressure turbine guide vane component forming a quenching mixing zone and lean combustion zones is arranged between the double-layer flame cylinder and the combustion chamber casing; the double-layer flame cylinder and the high-pressure turbine guide vane component are connected integrally, and the high-pressure turbine guide vane component and the combustion chamber casing are connected integrally; the quenching mixing zone is arranged at the connection of the high-pressure turbine guide vane component and double-layer flame cylinder; the high-pressure turbine guide vane component comprises high-pressure turbine guide vanes, guide vane passages are formed between adjacent high-pressure turbine guide vanes, and the lean combustion zones are formed in the guide vane passages. The high-pressure turbine guide vane component is prevented from ablation through cold gas flowing through the guide vanes.

The invention discloses a method for controlling the primary powder apparent density accurately by utilizing a ball mill. The method comprises the following steps: (1) feeding, namely, carrying out flushing, crush breaking, hammer breaking or jaw breaking on qualified sponge iron, lifting powder with the particle size being 10-15mm to a ball milling front stock bin, conveying the powder into the ball mill by a vibration feeder, and grinding; (2) carrying out parameter control, namely adjusting the current of the vibration feeder arranged at the feeding end of the ball mill so as to control the feeding quantity, adjusting the current of the ball mill so as to control the rotation speed of the ball mill, thus controlling the grinding speed, adjusting dedusting air suction capacity so as to control the fine powder feeding quantity; (3) discharging through three parts; and (4) screening, namely after screen underflow conforming to the granularity need enters a magnetic separator at the lower part of a drum screen, carrying out magnetic separation, lifting the screen underflow to a storage bin, conveying oversized products not conforming to the granularity need to the ball milling front material feedback storage bin by a material returning belt, adding the oversized products into the ball mill quantitatively according the need of primary powder ingredients, and grinding. According to the method, the apparent density and the particle constitution can be effectively controlled, the production cost is lowered, and the yield is increased.

The invention relates to a controllable EGR system using an integrated dual-channel EGR cooler. The system involves the integrated cooler and a double-channel structure formed by two exhaust manifolds, wherein the integrated cooler comprises two cold channels and two heat channels which are independent from one another, each exhaust manifold is connected with air inlet ends of one cold channel, one heat channel and a turbine through three air channels, the air outlet ends of the cold channels and the air outlet ends of the heat channels are connected with the air inlet end of a device air outlet cavity arranged in the integrated cooler, and the air outlet end of the device air outlet cavity and the air outlet end of an air compressor are connected with an engine after sequentially througha mixer and an air inlet manifold. According to the system, the EGR temperature and the EGR rate can be adjusted through a cold EGR and heat EGR combined mode, so that the adjusting capacity is high,and the EGR can be driven by utilizing exhaust pulse energy, so that the EGR rate and the driving capacity are improved.

The invention is provides a variable-frequency oil gas recovery control system of a fuel dispenser. The system comprises a flow metering impulse sensor, a controller, a recovery motor, a recovery oil pump and a temperature sensor arranged on an oil filling pipeline; the flow metering impulse sensor is in signal connection with a flowmeter arranged on the oil filling pipeline, and the flow metering impulse sensor is sequentially in the signal connection with the controller, the recovery motor and the recovery oil pump; and the temperature sensor is further in the signal connection with the controller so as to control the recovery motor and the recovery oil pump through a temperature signal. According to the variable-frequency oil gas recovery control system of the fuel dispenser, disclosed by the invention, a frequency converter is directly controlled by the temperature signal and a flow signal, so that the speed regulation of the variable frequency motor is controlled, the self-adapting oil gas recovery is realized, and the adjustment and the control are relatively exact, and therefore, the oil gas recovery ratio is within a range from 1-1.4, furthermore, the variable-frequency oil gas recovery control system disclosed by the invention does not adopt an oil gas recovery control system of a proportioning valve, so that the flow of gas can be greatly improved.

The invention relates to a constant flow valve and a working method thereof. An upper valve seat is arranged on the upper portion of a valve body. The lower portion of the valve body is fixedly lockedthrough a lower locking nut at the bottom. A valve element is arranged in the middle of the valve body. The portion between the valve element and the upper valve seat is provided with an upper valvecavity and a main spring. A lower valve cavity is formed between the lower portion of the valve element and the lower portion of the valve body. A backpressure cavity is formed between the bottom of the valve element and the lower locking nut. A water outlet pipe and a water inlet pipe are arranged at the two sides of the vale body correspondingly. The water inlet pipe communicates with the wateroutlet pipe through the lower valve cavity. The upper valve cavity communicates with the upper valve seat through a channel (a). A conical pilot valve arranged in the upper valve seat abuts against one end of the channel (a). The upper valve seat communicates with the water outlet pipe through a channel (b). The interior of the valve element communicates with the lower valve cavity through a channel (d), communicates with the backpressure cavity through a channel (c) and communicates with the upper valve cavity through a damping hole. By means of the constant flow valve and the working methodthereof, the water yield of tap water can be precisely adjusted and controlled; fluctuation of the water pressure is overcome; the water yield is maintained to be constant; the constant flow valve issimple in structure and convenient to mount and use; and saving and rational utilization of water resources are promoted.

The invention provides a method and a system for managing and controlling channel control information flow in the Internet of Things, and the method comprises the steps: determining the data operation state of a service terminal according to the real-time data interaction state between a central control terminal and the service terminal of the Internet of Things, and then determining the real-time working state of the service terminal to adjust the data interaction flow between the service terminal and the central control terminal; and enabling the information data after flow adjustment to be subjected to security check processing so as to judge the data security of the service terminal and control the working state of the service terminal, so that the data transmission flow between the central control terminal and the service terminal can be effectively and accurately controlled and adjusted. Therefore, the condition of data processing overload of the service terminal is avoided, and the reliability and safety of data transmission between the central control terminal and the service terminal can be improved.

The invention discloses a control method for preventing over-temperature of a variable pitch motor in a wind power generator set. The control method comprises the following steps of (1) detecting the temperature of the variable pitch motor in a target wind power generator set in real time, forwarding to execute a step (2) if the detected temperature reaches an over-temperature state; and (2) controlling and adjusting a pitch angle of the variable pitch motor to reduce the temperature of the variable pitch motor to a normal state, and returning to execute the step (1) until exiting control. The control method has the advantages of simplicity in implementation and operation and high control efficiency and precision, and the over-temperature of the variable pitch motor can be prevented in real time.

The invention discloses an intelligent larval transplantation machine with an automatic larval transplantation clamp. The intelligent larval transplantation machine with the automatic larval transplantation clamp comprises an installation support and the larval transplantation clamp which is arranged on the installation support; the larval transplantation clamp comprises two clamping arms which are mutually hinged, a reset part which is arranged between the two clamping arms to guarantee the two clamping positions to get close to each other and an adjusting mechanism which drives the two clamping positions to separate from each other; end portions of the two clamping arms are respectively provided with clamping positions which are matched with each other. According to the intelligent larval transplantation machine with the automatic larval transplantation clamp, automation of the larval transplantation process is achieved by improving the larval transplantation clamp structure, larval samples are avoided from falling off during the larval transplantation process, and the larval transplantation process is improved; the larval samples are avoided from being damaged; the larval transplantation survival rate is improved.

The present invention relates to a prosthetic leg for those having a femoral amputee, namely those having an above the knee stump, where certain movements can be difficult to perform. Known prosthetic knee joints that are weight-activated cannot substantially assist short-stumped individuals. The weight placed on the toe will typically cause disengagement of any stance mode there otherwise might be. The invention provides a solution to the problems addressed above. The present invention seeks to provide an improved mechanically operated prosthesis for a femoral amputee. The invention also provides an improved electrically-operated prosthesis for a transfemoral amputee.

The invention relates to a multistage surface turning device. The multistage surface turning device comprises a tool, a lathe body used for installing the tool, a tool connecting piece connected withthe tool, a workpiece fixed to the lathe body, a tailstock which is used for coordinating with the lathe body to support the workpiece and a drive mechanism which is used for driving the tool to move.The tool comprises a guide rail, a support which is located on the guide rail and can slide along the guide rail, a tool rest which is installed on the support, at least two adjusting mechanisms which are arranged on the tool rest and tool bodies which are located at the ends of the adjusting mechanisms. The tool rest is in a ring shape and is internally provided with a through hole, and the workpiece penetrates through the through hole. According to the multistage surface turning device, by means of the at least two adjusting mechanisms different in radial position and the tool bodies, at least two stages of surface machining are achieved at the same time, multiple machining requirements of the workpiece surface are met at a time, the production efficiency is high, operation is convenient and rapid, and the production cost is saved.