42results about How to "Adjustable magnetic field strength" patented technology

The invention discloses a lung-clearing and phlegm-eliminating device for old people, and relates to the technical field of medical instruments of a respiratory medicine department. The lung-clearingand phlegm-eliminating device for old people comprises a wearing unit, a vibrating unit and a phlegm suction unit; the wearing unit comprises a wrapping bag which surrounds the chest of a human body;bag cavities are filled with shear thickening fluid; the vibrating unit comprises a positioning plate; a plurality of inner threaded tubes are mounted on the positioning plates in the front-back direction in a penetrating manner; the rear end of an adjusting column is fixedly connected with a pressure spring; the other end of the pressure spring is fixedly connected with a knocking box; an electromagnet is fixedly mounted in the knocking box; the phlegm suction unit comprises a tool table and a negative-pressure pump; the periphery of the head of the phlegm suction tube is uniformly connectedwith rubber tubes; and the rubber tubes are filled with magnetic powder. The lung-clearing and phlegm-eliminating device for old people has the beneficial effects that by cooperation of rapid high-frequency knocking and the shear thickening fluid, a patient can be protected well and vibration is transmitted, airway stimulation is enhanced, and a phlegm-eliminating treatment effect is improved.

The present invention relates to a transfer device with a magnetic field drying device, and particularly to a cold foil transfer device and a corresponding transfer method. When cold foil transfer is performed, adhesive is applied on a substrate (4) and the adhesive passes through a transfer gap (13) together with the transfer coil (11), wherein, a transfer layer is transferred to the substrate (4) from the transfer coil (11) under a pressure function according to adhesive arrangement. For durably connecting with the substrate (4), the adhesive is heated or activated through a UV heating device. Adverse effect occurs because of heat. According to the transfer device, magnetic field dryers (17,17',17'') are equipped and magnetic adhesive (3) is used as the adhesive, wherein the magnetic adhesive can be activated through the magnetic field dryers (17,17',17''). Therefore the adverse heat induction can be prevented.

Flexible printed circuit board and magnetic field coil manufacturing method based on the printed circuit board are disclosed, the method employs a flexible printed circuit board of one structure andthree layouts to realize the series-parallel adjustable magnetic field coils according to different combinations, thus the magnetic field coils with different magnetic field intensities can be conveniently manufactured. At the same time, by changing the number of series-parallel magnetic field coils, the total current demand for magnetic field coils can be changed, and the restriction on the supply current source can be reduced. The implementation of the method first requires a flexible printed circuit board, The circuit board consists of front and back coils, and the projection structure of the two coils is the same. According to the difference of the circuit board pads, the circuit board is divided into three types. The series and parallel combination of the magnetic field coils is realized by different combinations of the three types of circuit boards, so as to realize the magnetic intensity adjustment of the magnetic field coils. The magnetic field coil manufactured by the method provided by the invention has the advantages of regular structure and good consistency. Magnetic field coil magnetic field intensity is adjustable and power supply total current demand is adjustable.

The magnetic separating unit includes one power mechanism with speed reducer, one rotating magnetic yoke inside the casing with scrapers, several static magnetic yokes around the rotating magnetic yoke and on the casing. The dry ore dressing apparatus with the magnetic separating unit has the oppositely configured like magnetic poles, discharge passage set in the zero-magnetism area between magnetic poles, ring interval around the driving shaft and between the static magnetic yokes and the rotating magnetic yoke, and exciting winding connected to the controllable power source on the static magnetic yokes.

The invention provides a stiffness-adjustable grinding device and a using method. The stiffness-adjustable grinding device comprises a motor for providing power; a switch used for controlling the motor to start is mounted on the motor; a grinding wheel or a grinding belt used for grinding is mounted on an output shaft of the motor; a grinding area on the grinding wheel or the grinding belt is divided into a plurality of layers by adopting a rubber material; the intermediate layer adopts a hydraulic layer or a pulse layer which can produce instantaneous acting force; the remaining layers are the stiffness layers that can provide different grinding stiffness; the hydraulic layer or the pulse layer are respectively connected with a hydraulic device or a pulse device correspondingly; a convexstructure used for enhancing a grinding effect is arranged on the surface of the grinding wheel and the grinding belt; the outer surface of the convex structure is wrapped with a flexile material layer; and by changing the grinding material of the stiffness layer in real time, the object can be polished by fine adjustment of appropriate stiffness. Compared with a common grinding device, the stiffness-adjustable grinding device has wider practicality and economic benefits, and better meets the grinding requirements required by production and living.

The invention relates to the field of preparation of environment-friendly wall materials, and discloses a preparation method and a construction method of a diatom ooze environment-friendly wall material for building decoration. The preparation process comprises the following steps: (1) supporting sodium carbonate powder; (2) preparing an capsule material emulsion; (3) preparing diatomaceous earth,nano ferrite and the capsule material emulsion into a mixed solution; (4) carrying out drying at a constant temperature to obtain microcapsules; and (5) uniformly dispersing and mixing the microcapsules with glass fibers, a coupling agent, a binding agent, active clay and pigment. The construction method comprises the following steps: (1) preparing a paste-like coating, and brushing a wall surface with the paste-like coating; (2) applying a high-frequency alternating magnetic field; (3) spraying a citric acid solution; and (4) carrying out drying. According to the invention, through the addition of the high-frequency alternating magnetic field, magnetic particles embedded into a capsule material generate a magneto-thermal effect, and the temperature-sensitive capsule material is induced to be broken rapidly, so that the construction condition of the diatom ooze is improved. The diatom ooze wall material releases sodium carbonate to react with citric acid, and gas is generated, so thatthe pores of the diatomaceous earth are prevented from being blocked, and the adsorption and purification effects are remarkably improved.

The invention provides an electromagnetic auxiliary grabbing device. The electromagnetic auxiliary grabbing device comprises a base, a mechanical arm, an electromagnetic detector and an upper computer; the base is installed on a moving device, and the moving device drives the base to move in a multi-axis mode; the mechanical arm comprises a plurality of mechanical arms distributed on the base, each mechanical arm is composed of a driving arm and a driven arm which are connected in a hinged mode, the driving arms are installed on the base, clamping jaws are detachably installed at the tail ends of the driven arms, and electromagnets are carried on the clamping jaws; the electromagnetic detector is installed on at least one clamping jaw and connected with the electromagnets, and if the electromagnetic detector senses that an object clamped by the clamping jaw is metal, the electromagnets are conducted for auxiliary fixing; and the upper computer is connected with the moving device and the mechanical arm and used for controlling the moving device to drive the base to move and controlling the grabbing operation of the mechanical arm. The electromagnetic detector is used for detecting whether the grabbed object is metal or not, and if the grabbed object is metal, the electromagnets are started to provide auxiliary grabbing for attracting ferromagnetic substances.

The invention discloses an inner and outer double-layer magnetic ring structure. The structure comprises an outer-layer magnetic ring and an inner-layer magnetic ring, the outer-layer magnetic ring is cylindrical, a central air gap is formed in the axis position of the outer-layer magnetic ring, and the central air gap is a working space of a magnetic field system; and the inner-layer magnetic ring is arranged in the central air gap. The invention further discloses a preparation method of the inner and outer double-layer magnetic ring structure. The problem of magnetic leakage of the magnetic refrigeration test system is solved, the magnetic field defined by the inner-layer magnetic ring and the outer-layer magnetic ring has multiple layers, no magnetic leakage exists in the center, and the direction and size of the magnetic field of the magnetic refrigeration test system are adjusted through rotation of the inner-layer magnetic field and the outer-layer magnetic field.

The invention belongs to the technical field of interferometer systems, and particularly relates to an adjustable spectrum correction system and method. The system comprises a swing device, a swing driving device, a control circuit device and a high-frequency working device. The method comprises the following steps: S1, inputting triangular wave current, and judging whether an interference peak is centered or not; if not, turning to the step S2; s2, starting bias adjustment, and judging whether the first data separator is A or B; s3, if the data separator is A, determining the data separator as a rising edge, and if the swing arm deviates leftwards, increasing a bias parameter; if the swing arm deviates rightwards, the bias voltage parameter is reduced; s4, if the data separator is B, determining the data separator as a falling edge; if the swing arm deviates leftwards, the bias voltage parameter is reduced; if the swing arm deviates rightwards, the bias voltage parameter is increased; and S5, when the position of the swing arm after deviation rectification is in the middle, the deviation rectification process is completed. The device has the advantages that environment vibration can be counteracted, and the magnitude of current can be adjusted according to the inclined ground, so that the swing arm is centered.

The invention discloses a rotating seat for electromechanical installation engineering, which comprises a rotating disk and a telescopic cylinder rotatably connected to its upper surface. The rotating disk takes its geometric center as the center point, and a plurality of push rods are symmetrically fixed on the circumference, each The output end of the push rod is fixedly connected with a fan-shaped plate through a fixed rod, and a plurality of the fan-shaped plates are offset to form a disc, each of the fan-shaped plates is fixedly connected to a side plate, and the plurality of side plates are offset to form a disc. A circular ring, a plastic bag is provided on the inner wall of each side plate, and a plurality of electromagnets are provided on the outer wall of each side plate. The advantage is that when rotating and adjusting the length of the slide bar, the shear strength of the magneto-rheological fluid at the bearing point of the electromechanical equipment can be increased, and vice versa, it can also be adjusted to weaken the magnetic field strength at the "fragile point" of the electromechanical equipment, ensuring When installing electromechanical equipment, it will not exert excessive pressure on the "vulnerable point" to avoid damage to the electromechanical equipment.

The invention discloses an efficient grade enhancing machine. The efficient grade enhancing machine comprises a protective outer cylinder, a grading inner barrel, an overflow box, a feeding funnel, a control cabinet and a supporting frame, wherein the grading inner barrel is arranged in the protective outer cylinder in a sleeved mode, electromagnets are arranged on the two sides of the grading inner barrel through screws, the top of the protective outer cylinder is provided with the overflow box communicating with the top end of the grading inner barrel through a mounting plate, an overflow pipe is welded on one side of the overflow box, the bottom of the overflow pipe is connected with a backflow pipe, the bottom end of the backflow pipe is connected with a three-way valve, one side of the three-way valve is connected with a water inlet pipe, and the other side of the three-way valve is connected with a water main, the top of the overflow box is provided with the feeding funnel through a mounting piece, the bottom of the feeding funnel is welded with a feed delivery pipe, the feed delivery pipe penetrates through the overflow box, a conical discharging port communicating with the grading inner barrel is welded at the bottom of the grading inner barrel, and an electromagnetic valve is arranged on the conical discharging port. The high-efficiency grade enhancing machine has the advantages of being high in desiliconization efficiency and good in controllability, capable of effectively saving water resources and suitable for wide popularization.

The invention belongs to the technical field of water-saving irrigation and water treatment and especially relates to an external plug-in field intensity adjustable magnetizer special for agriculturalirrigation. Flange plates are arranged at two ends of a stainless steel pipe body; the pipe diameter of the stainless steel pipe body is equal to the pipe diameter of a connected drip irrigation system pipeline; an upper through hole group and a lower through hole group which are staggered left and right and obliquely penetrate through the pipe body are uniformly distributed on the pipe body along the axial direction; axes of upper through holes and lower through holes of the same upper through hole group and the same lower through hole group are the same; hole seats are respectively arrangedon the upper through holes and the lower through holes; magnetic rods with two ends extending out of the pipe body are respectively mounted in the hole seats of the upper through holes and the lowerthrough holes in a matched manner; and the hole seats of the upper through hole group and the lower through hole group are in seal fit with the magnetic rods through seal rings and clamping rings andare fastened through bolts. The magnetizer has advantages of reasonable structure, simple structure, convenient installation, plug-and-play function, adjustable magnetic field intensity, full-face water magnetization, high magnetization intensity and good magnetization effect, and the magnetic field intensity is adjusted by increasing or decreasing the number of the magnetic rods according to actual crop requirements.