65results about How to "Precise output control" patented technology

A wireless communication system has a first operation mode (GSM mode) for amplifying a phase-modulated high frequency signal with a high frequency power amplifier circuit and a second operation mode (EDGE mode) for amplifying a phase and amplitude-modulated high frequency signal with the amplifier circuit. The amplifier circuit has an input of a high frequency signal, with the amplitude and frequency being fixed in both the first and second operation modes, and operates by being controlled for the bias state of each amplifying stage in accordance with the output control signal produced by a control circuit based on the demanded output level (Vapc) and the detected output level (VSNS) so that the amplifier circuit performs signal amplification to meet the demanded output level.

The invention provides a silica gel 3D printer and a silica gel product printing method. The silica gel printer comprises a frame, an X-axle slide module, a Y-axle slide module, a Z-axle slide module, a silica gel printing head and an air pressure adjusting module. A main control module is used for controlling the Z-axle slide module to drive a forming platform to change the position along a Z axle according to model data information of a silica gel product to be printed, controlling the X-axle slide module and the Y-axle slide module to drive the silica gel printing head to move along a predetermined path at a first predetermined speed, and controlling the air pressure adjusting module to adjust air pressure in the silica gel printing head so as to control the silica gel printing head to extrude out silica gel at a second predetermined speed. The silica gel printer has the beneficial effects of simple structure, low energy consumption and simple technological flow.

The invention provides an automatic mixing device for pigment and relates to a device which is used for color combination. The automatic mixing device for the pigment comprises a color recognition portion and a color mixing portion, wherein the color recognition portion mainly comprises a standard light source, a color sensor, a single chip microcomputer and an operation control procedure. The single chip microcomputer is synchronously connected with the standard light source and the color sensor through lines, and the standard light source and the color sensor are arranged in a light shielding cover. The color mixing portion mainly comprises a single chip microcomputer, a power amplifying circuit, an electromagnet, a pressure sensor and a container. The single chip microcomputer is connected with the electromagnet through a power amplifying circuit, one end of the electromagnet is installed at the bottom of the container, and the other end of the electromagnet is provided with a pipeline which is guided out of the other end of the electromagnet. The pressure sensor is connected with the single chip microcomputer through lines, a round bucket which is used for containing mixed pigment is arranged on the pressure sensor, and the round bucket is arranged below the pipeline which is guided out of the other port of the electromagnet. The automatic mixing device for pigment overcomes the shortcomings that automatic recognition can not be achieved in the prior art in the color recognition process and precise color mixing rate in a color mixing link can hardly be achieved.

An electronic converter converts high-voltage AC power main voltage, such as 120V, 240V or 277V, to a low-voltage suitable for driving a halogen lamp. The converter includes a rectifier circuit, starter circuit, a driver circuit, a current sensing circuit and a transformer circuit with an optional synchronous output rectifier. The current sensing circuit senses an output current of the converter. The sensed current is used to govern pulse-width modulation of the lamp drive voltage, to provide over-voltage protection. Temperature protection can also be provided to reduce drive current when the converter overheats. This enables reliable operation of the converter over an extended temperature range, and reduces the occurrence of converter component failures due to ground faults or overheating.

The invention discloses a manufacturing system and method for absorbing articles. The system is provided with a first carrying unit, a second carrying unit, a first connecting workstation, a second water-absorbent particle adding device, a third carrying unit, a second connecting workstation and a first water-absorbent particle adding device. The problem that the traditional system difficultly meets requirements of on-line manufacturing of composite cores is solved. The method comprises the following processes of primary spreading, secondary spreading, edge folding, compacting, air discharging, dotting and compounding and the like. On-line manufacturing of composite cores is realized. The manufacturing system for absorbing articles has the advantages of low manufacturing cost and good absorbing effect. The gap in the field of on-line forming of composite cores is filled, and the technical support is provided for on-line production of the composite cores. The manufacturing system is simple in structure, accurate in control and high in production efficiency.

The invention belongs to the field of material drying equipment, in particular relates to a vertical microwave drying coal furnace which comprises a microwave drying furnace body, wherein a feeding hopper is arranged at the top end of the microwave drying furnace body; a waveguide duct for conducting microwaves is installed on the microwave drying furnace body; a ventilation pipeline is arranged in the microwave drying furnace body; a gas inlet of the ventilation pipeline is connected with high-pressure nitrogen gas filling equipment, and a gas outlet of the ventilation pipeline is communicated to the outside; the ventilation pipeline is drilled; and a discharge valve is arranged at a discharge opening at the bottom of the microwave drying furnace body. In the invention, a vertical structure is adopted, thus the floor space is small, the structure is simple, and the manufacturing cost is lowered; the microwave heating is adopted, thus the coal can be dried quickly and uniformly; the coal is used as a heating element, thus the heat utilization efficiency is high, the energy is saved, and the environment is protected; the high-pressure nitrogen gas filled in the ventilation pipeline forms negative pressure in the pipeline, and a through hole only absorbs water vapor evaporated from the coal, thus the clogging or microwave leakage is avoided; and a helical conveyer below the discharge opening can be used for accurately controlling the discharge quantity and discharge speed of the coal.

The invention provides a coal mine working face coal seam GIM digital model creation method based on BIM. The method includes: processing the field drilling actual measurement data; using a BIM modeling tool to edit three-dimensional geometric figure algorithm, creating a coal seam GIM digital model. The coal seam occurrence condition of the to-be-mined working face is accurately reflected; the technical defects of the existing two-dimensional CAD drawing technology are overcome; the problem that the coal seam occurrence condition cannot be visually and accurately checked before the coal mine is stoped on the working face is solved; the accuracy of coal mine production design management personnel for mastering the coal seam occurrence condition of the working face is improved, the coal yield of the working face is controlled more accurately, follow-up stoping work is guided to be carried out smoothly, and prevention and prejudgment on the disaster condition are achieved in advance.

The invention discloses a pneumatic impact system with a digital display screen. The impact system can be used for providing an accurate high-pressure gas output amount through a pressure sensor, can be applied to a microjet injector for intradermic injection, hypodermic injection or muscle fluid injection, and can be applied to powder jet of solid powder.

The invention provides quantitive slurry conveying equipment and a method for conveying slurry. The equipment can convey the slurry with a fixed slurry concentration. The equipment comprises a slurry mixing barrel 4, a quantitive powder conveying device, a stirring device 5, a solution metering device 6 and a slurry conveying device. The method for applying the equipment to convey the slurry comprises the following steps of continuously conveying a powdery substance and a liquid medium into a slurry mixing device in a cocurrent flow mode; and utilizing a spiral feeding device to continuously and quantitively convey the powdery substance, utilizing a flowmeter to continuously and quantitively convey the liquid medium, stirring and mixing in the slurry mixing device to form suspended slurry, continuously overflowing and outputting, and conveying the suspended slurry to an application position through the slurry conveying device. The equipment and the slurry conveying method can quantitively and continuously convey the slurry, are suitable for conveying a solid substance which has larger bulk specific gravity variation and is difficult to accurately control on the output quantity by depending on simple spiral feeding equipment, can also quantitively and remotely convey the slurry and are convenient for logistics management and safety operation.

The invention relates to a micro lubricating device and a using method thereof. The device comprises a box body (7) as well as an oil supply mechanism, a gas supply mechanism and a spray nozzle (5), which are arranged outside the box body (7). The micro lubricating device is characterized in that a secondary atomizing integrated pump (3) is arranged in the box body (7), wherein the oil supply mechanism, the gas supply mechanism and the spray nozzle (5) communicate with the secondary atomizing integrated pump (3); and after being mixed and atomized in the secondary atomizing integrated pump (3), oil and gas are spray out through the spray nozzle (5). Compared with the prior art, the micro lubricating device can improve lubricating performance of an oil-gas mixture, processing performance isfurther improved, production cost is reduced, the structure is simple, operation is convenient, and mounting and maintaining are easy.

A sub-mount (7) provided with a laser chip (8) and a light receiving element (5) for monitoring is bonded to a die pad portion (2a) of a first lead (2). An electrode of the laser chip and an electrode of the light receiving element are electrically connected to second leads (3, 4) by wires such as metallic wires, not shown, respectively. A resin frame (6) is provided to cover sides and a rear surface side of the sub-mount except for an emission surface side of the laser chip and to integrally hold one end portion sides of the first and second leads. An antireflection unit (9) for preventing light from being reflected on the light receiving element is formed on a portion of the resin frame opposite to the rear end face of the laser chip. As a result, it is possible to obtain a mold type semiconductor laser capable of constantly detect accurate laser chip output and capable of forming an accurate optical output control circuit.

The invention relates to a removal device for organic matters of wastewater. The removal device is characterized by comprising an upright cylindrical tubular body, wherein an internal flow guide cylinder, of which the lower part is provided with a flow guide cover, is arranged in the center of the tubular body, a water inlet pipe is arranged in the flow guide cover, the lower part of the flow guide cover is provided with an aerator, a filler layer is arranged inside the flow guide cover, a plurality of ultraviolet lamp tubes are further uniformly distributed inside the flow guide cover, and a water outlet is located at the upper part of the tubular body.

The embodiment of the invention discloses a method and device for detecting a rotation angle of a steering engine. The method comprises the following steps: calculating a rotation angle estimated value of a motor shaft in a rotation process according to a second rotation angle; determining the actual range of the rotation angle of the motor shaft according to the estimated value of the rotation angle in combination with the detection error of the second angle sensor; determining a rotation angle selectable value of the motor shaft based on the relative relationship between the first rotation angle and the rotation angle estimated value; determining the actual rotation angle of the motor shaft based on the value falling into the actual range of the rotation angle of the motor shaft in the rotation angle selectable value, and determining the actual rotation angle of the output shaft according to the actual rotation angle of the motor shaft. Through the method, the measurement precision of the rotation angle of the output shaft of the rotating mechanism can be improved, the influence on the overall error of the system caused by the precision error of the angle sensor is greatly reduced, and the output control of the rotating mechanism is more accurate.

The invention discloses a needleless injection syringe. The needleless injection syringe comprises a cylinder-shaped shell, an injection head and a pneumatic device, wherein the pneumatic device is arranged at the upper part in the shell, a medicine storage tube is arranged at the lower part in the shell, a piston is mounted in the medicine storage tube, the piston is match mounting with the pneumatic device, the exposed end of the medicine storage tube is provided with the injection head, the pneumatic device comprises an air storage bottle, air guide pipes and a mobile plug, the air storage bottle is fixedly mounted in the shell, the outlet of the air storage bottle is connected with a switch device, the outlet of the switch device is connected with one or more air guide pipes, the outlet end (s) of the air guide pipe(s) is/are fixedly mounted on an air hole formed in the mobile plug, and the air hole is a through hole axially communicated along the axis of the mobile plug. The invention aims at providing the needleless injection syringe capable of being used for a plurality of times after being charged with liquid once.

A rotating disc type reflux ratio controller comprises an external barrel, a liquid distributing tank, a separator plate, an adjusting rod, a rotating shaft, a supporting seat and a control motor. The external barrel is an enclosed structure and is composed of a lower cylinder and an upper head which are connected through a flange, and a bottom cap is a flat plate. The inside of the lower cylinder of the external barrel is divided by the separator plate from the center into two halves which are not communicated with each other. The upper center of the separator plate and the supporting seat are fixed together through a welding method. The liquid distributing tank is a cylinder with an upper opening. Half of the cylinder's side face is provided with small holes with phi 0.5-15, and the other half of the side face is imperforate. The two halves are separated by the use of two vertical lathes outside the cylinder. The rotating shaft passes through a bottom cap hole to be fixed with the bottom cap. The lower end of the rotating shaft, coming out of the bottom cap of the liquid distributor, is inserted into the supporting seat. The rotating shaft is connected with the adjusting rod to extend out of the external barrel through a sealing device so as to be connected with the control motor. The control motor drives the rotating shaft so as to rotate the rotational angle of the liquid distributing tank. Two sides of the separator plate of the bottom cap of the cylinder are respectively provided with a liquid outlet. One liquid outlet is a reflux port and the other liquid outlet is an output port.

The invention discloses a compound feed machining and feeding mechanism. The mechanism comprises a mechanism body and a discharging hopper. The discharging hopper is arranged at the bottom of the mechanism body. A clamping groove is formed in the discharging hopper, the mechanism body is movably clamped to the clamping groove, the top of the mechanism body is provided with a motor and a feeding inlet, a stock bin is arranged inside the mechanism body, a rotating shaft is arranged at the bottom of the motor, the rotating shaft extends into the stock bin, a stirring rod is fixedly arranged on the rotating shaft, a protrusion is fixedly arranged at the bottom end of the rotating shaft, a mixed bin is arranged at the bottom of the stock bin, a discharging outlet is formed in the top of the mixed bin, a baffle is arranged at the bottom of the discharging outlet, the baffle is sleeved with a connecting rod, a stirring mechanism is arranged on the connecting rod, and an embedded groove is formed in the top end of the connecting rod. The rotating shaft and the connecting rod are movably clamped through the protrusion and the embedded groove, mixed stirring of feed and breaking of caked feed can be achieved, the baffle can be driven to move up and down conveniently, and quantified feed discharging can be achieved.

The invention belongs to the technical field of seed packaging equipment and particularly discloses a packaging device for a seed packaging machine. The packaging device comprises a workbench, and theworkbench is provided with a discharging stage, a supporting table, a supporting rod and a balance plate. The discharging stage is internally provided with a cavity structure, and a supporting blockis arranged in the cavity structure; when a first spring is in a natural state, the supporting block is enabled to protrude the cavity structure, and a retaining plate is positioned in a slide cavity,and the supporting block is constantly abutted against the lower end of the balance plate. A fixing plate used for weight placement is arranged at one end, away from the supporting table, of the balance plate. A placement plate for placement of packaging boxes is arranged at the other end of the balance plate and positioned above the supporting block. The packaging device is mainly used for seedpackaging, and the problem of low seed weighing efficiency caused by errors in a weighing process and low manual weighing speed is solved.

The invention discloses an intelligent tubular oppositely-opened type stirring machine which comprises a base, a multi-stage stirring pipe device and an air compressor.The multi-stage stirring pipe device is composed of a first-stage stirring pipe device body and a second-stage stirring pipe device body.The first-stage stirring pipe device body comprises a first-stage stirring pipe.The rear end of the first-stage stirring pipe is connected with a speed reduction electric motor through an elastic coupler.The first-stage stirring pipe is fixed to the base and communicated with a high-position bin.The second-stage stirring pipe device body comprises a second-stage stirring pipe.The second-stage stirring pipe is connected with the speed reduction electric motor through an elastic coupler.The discharge port of the first-stage stirring pipe is communicated with the feed port of the second-stage stirring pipe.Binder feeding systems are arranged on the first-stage stirring pipe and the second-stage stirring pipe respectively.Spiral blades are arranged in the first-stage stirring pipe and the second-stage stirring pipe respectively.A PLC electric appliance control cabinet is arranged on the base.The intelligent tubular oppositely-opened type stirring machine is reasonable in design and arrangement, the dry-to-wet ratio of clinker can be designed according to temperature differences of seasons and the humidity of air, and the amounts of dry materials, water and binder are arranged according to the proportion.

The present invention provides a rotation angle detection method and device thereof. The method includes calculating an estimated value of a rotation angle of a motor shaft during rotation according to a second rotation angle; determining an actual range of the rotation angle according to the estimated value of the rotation angle and a detection error of the second angle sensor; determining optional values of the rotation angle based on a relative relationship between a first rotation angle and the estimated value; determining an actual rotation angle of the motor shaft, based on a value falling within the actual range of the rotation angle among the optional values, and determining an actual rotation angle of the output shaft according to the actual rotation angle of the motor shaft. The present invention can improve the measurement accuracy of the rotation angles of the output shaft of the rotating mechanism.

The invention discloses a production device of a thin film switch. The production device comprises an operation table, a mounting frame, a positioning assembly, a discharging assembly and a base; themounting frame is arranged on the operation table; the positioning assembly used for positioning an injection mold is arranged on a horizontal section of the mounting frame; the discharging assembly used for controlling the injection mold discharging is arranged at the lower end of a positioning frame; a discharging pipe is arranged at the lower end of a storage tank; the feeding pipe is arrangedon the side surface of the storage tank; and the base is a below the operation table. The invention further discloses a production method of the thin film switch; the method comprises the following steps that a circuit film finished product is placed in the injection mold, and the production device is started for carrying out injection molding, de-molding treatment, detection, packaging and storage. By virtue of coordination of the positioning assembly and the discharging assembly, the injection molding operation is simple, manual fixation of the mold is not needed, the labor is saved, and theworking efficiency is high; and after the injection molding is finished, a two-way fan is used for discharging air, an air outlet pipe is aligned with the injection mold for air delivering, so that the mold is cooled, the mold cooling is accelerated, and the production speed is increased.