10 results about "Induction zone" patented technology

The application discloses a kind of EUV light source target drop motion form control storage device and control method.Sn target drop ejection cavity is connected with liquid drop storage component, and liquid drop induction charging component is installed at the junction of nozzle and liquid drop storage component;Liquid drop biasing component is installed in liquid drop storage component.The method comprises: through liquid drop biasing component control device is in liquid drop storage mode, liquid drop use mode and liquid drop frequency conversion mode, realize the storage, use and frequency conversion of charged liquid drop.The application realizes the buffering and state adjustment of target drop after charging, realizes the temporary access of target drop, more accurately adjusts the spatial position and motion state of liquid drop, realizes the uninterrupted supply of target drop during raw material heating and rapid start after shutdown.Realize liquid drop frequency conversion, can satisfy the generation of high-frequency liquid drop due to the defect of low-frequency liquid drop, improve light source energy conversion efficiency and output power, reduce fragment pollution, improve light source system reliability.

The present application relates to the field of vacuum furnace body knotting manufacturing, in particular to a vacuum smelting furnace body device and a knotting method thereof. The device comprises a plurality of copper wire groups, which are laid between a tire membrane (2) and an asbestos cloth (4) and close to the inner side of the asbestos cloth (4) at intervals. The copper wire group comprises a plurality of first copper wires and a plurality of second copper wires (6), and the second copper wires (6) are arranged in a staggered and buckled manner with the first copper wires (7) embedded in the lower layer. The use of the method of the present application overcomes the defects of low bonding strength and easy crack formation at the connecting parts between the main induction zone and the furnace ring, and between the furnace ring and the furnace nozzle of the existing furnace body, enhances the connection integrity and firmness between the main induction zone and the furnace ring, and between the furnace ring and the furnace nozzle, reduces the occurrence of large transverse and longitudinal crack defects, improves the service life and production efficiency of the vacuum furnace body, reduces the knotting frequency of the furnace body under the same production condition, and reduces the labor intensity of personnel.

The invention provides an electricity testing device which comprises an electroscope, the electroscope comprises a detection module, the detection module comprises a first coil group and a second coil group, the first coil group comprises a plurality of coil pairs connected in series, each coil pair comprises two coils connected in a differential pair mode, and the second coil group comprises a plurality of coils connected in a star shape. The first coil assembly surrounds the outer side of the second coil assembly. Through the arrangement, the electromagnetic coil approaches the to-be-tested electrical device, the change of an electromagnetic field near an electrified conductor is induced and converted into an electric signal, and thus non-contact electricity testing is realized; the first coil group comprises a plurality of coil pairs which are in differential pair connection, so that common-mode noise and signals induced in other directions can be effectively eliminated, the signal-to-noise ratio is improved, and the measurement precision is improved; the second coil group comprises a plurality of coils which are connected in a star shape, so that the load of each coil can be balanced, and the influence of common-mode voltage can be reduced.

The application discloses a kind of automatic butt joint charging pile and charging method of ship berthing, it is related to ship charging technical field, the charging pile is composed of base unit, floating butt joint device, visual positioning module and charging control cabinet.By setting several charging induction zones at the entrance of ship, and connecting charging base on both sides, each charging base is registered in the base unit grid, to build the corresponding base unit cell, build floating butt joint object group, and make docking preparation through the identification and pairing of predefined docking rules of floating butt joint object group, and make visual positioning to the target object that makes docking preparation, determine the position calibration area after the ship berthing, execute area approach guidance in the position calibration area, control the ship to enter the target charging area, finally, charge the ship in the target charging area, and supervise the charging process, realize efficient, accurate and safe ship charging.

The invention discloses an intelligent electromagnetic braking system and method.The braking system is used for braking a movable carrier with a wheel structure and comprises a plurality of coils arranged in the wheel structure and a plurality of metal inductors arranged on the road surface and in short circuit with one another; the outer cambered surface of the wheel structure is divided into a plurality of induction areas in the circumferential direction of the wheel structure, and each induction area corresponds to at least one coil. When the mobile carrier sends out a brake signal, the coil is configured to respond to the corresponding induction area to make contact with the road surface to generate a magnetic field. The magnetic field passes through the metal inductor and generates varying magnetic flux. Therefore, the intelligent electromagnetic braking system can reduce the heat generated by the coil and does not affect the trafficability of the mobile carrier.

The utility model relates to the technical field of automobile accessories, and provides a kick switch for opening and closing an automobile tail door, which comprises a power supply circuit electrically connected with the kick switch, the power supply circuit is provided with a power supply filtering loop, and the power supply filtering loop comprises a first filtering capacitor C3 and a second filtering capacitor C4 which are connected in series. When one filter capacitor is damaged and short-circuited, the positive and negative ends of the power supply are not short-circuited. The first capacitive sensing belt is used for sensing and collecting capacitance change values of the lower portions of the shanks, the second capacitive sensing belt is used for sensing capacitance change values of the backs of the soles, and the capacitance change values of the sensing belts of the first capacitive sensing belt and the second capacitive sensing belt are judged and collected through cooperation of the control circuit. Kicking judgment is carried out according to regular conditions such as the induction sequence of the two capacitive induction belts; and meanwhile, the recognition degree of the algorithm on the kicking signal is improved according to factors such as the kicking time interval and the kicking duration, so that the kicking action is more accurately judged.

The utility model discloses a small-size printed circuit board (PCB) wide-range linear displacement sensor, which relates to the technical field of linear displacement sensors, comprises a fixing part, a fixing part matching part and a PCB, and is characterized in that the PCB comprises at least one group of exciting coils and induction coils, the excitation coil is arranged on the outer side of the induction coil in a surrounding manner; a transverse shaft is arranged on one side of the fixing part matching part, the fixing part matching part is independently fixed on the periphery of the transverse shaft, the fixing part is arranged on the fixing part matching part, the fixing part is provided with induction belts in the measured displacement direction, the number of the induction belts is consistent with that of the induction coils, and the positions of the induction belts correspond to those of the induction coils. According to the utility model, the structure is simple, the cost is low, the space size of the PCB is small, the PCB is used as a moving part, the movement is more stable, the parallelism of the PCB and a fixed part is easier to ensure, the test distance can be increased under the condition that the length of the PCB is limited, and the test precision is higher.

The application discloses a slanting detonation engine and a detonation method thereof, and belongs to the field of aero-engine technology.The slanting detonation engine comprises a fairing, a refractory fuel injector, a flammable fuel injector, an air inlet, a combustion chamber and a tail nozzle; the air inlet comprises a first wedge surface and a second wedge surface; the refractory fuel injector is arranged on an upper wall surface close to an air inlet outlet; the combustion chamber is connected with the air inlet; a tail wedge surface is arranged at the end of the combustion chamber; the wedge angle of the tail wedge surface is 20 degrees; the tail nozzle is connected with the combustion chamber; the flammable fuel injector is arranged at the front end of the fairing; a double-layer fuel auxiliary detonation method is adopted; the flammable fuel is used to assist the detonation of the refractory fuel, so that the length of the refractory fuel induction zone is reduced, there is no dynamic structure response and no additional energy injection, which is beneficial to the application of an engineering prototype, and thrust gain is obtained to the maximum extent; due to the characteristics that the refractory gas is not easy to detonate, the slanting detonation wave can be inhibited from detaching, and the lower limit of the flight Mach number of the slanting detonation engine can be greatly widened.

The invention provides vertical cold crucible induction zone-melting purification equipment, and relates to equipment and a technology for realizing zone-melting purification by adopting a vertical cold crucible induction heating mode. By adopting the cold crucible, a channel for introducing impurities into a melting zone by a crucible material is eliminated, so that the possibility of obtaining high purity is provided, and conditions are provided for realizing the purification of a large-section material; aiming at the defect that the width of a melting zone is not uniform due to the cooling effect of a crucible wall on a melting pool in a cold crucible zone melting technology, the problem is solved by adopting a cold crucible rotating technology and an electromagnetic field offset technology, so that the melting zone obtains uniform width, and a good purification effect is realized. By arranging the crucible rotating device, the material in the crucible rotates in an electromagnetic field, and the temperature uniformity of the section of the material is improved. And an XY-axis displacement table is arranged for the linear module, so that the condition of non-uniform heating of the material on the cross section is corrected, and the uniformity of a melting zone is further improved.

The invention discloses an anti-scaling circulating heat exchange method for a high-salinity wastewater MVR (mechanical vapor recompression) evaporative crystallization process, which comprises the following steps of: arranging a seed crystal induction area in a pipeline from an outlet of a circulating pump to an inlet of an evaporator, and finishing initial nucleation of mother liquor on the surface of a seed crystal in advance under the conditions of high turbulence and moderate supersaturation; fine grains with the grain size of 20-30 microns are continuously added in combination with a metering pump, so that the nucleation position is controlled. An online turbidity monitoring point is arranged at an outlet of the induction area, and mother liquor is selectively fed into the heat exchange section or bypass backflow through a three-way valve according to turbidity, so that the content of solids entering the heat exchange section is stably controlled, and heterogeneous nucleation of a heat exchange surface is avoided. The evaporated feed liquid continues to grow in the crystallizing pond and is subjected to solid-liquid separation through a centrifugal machine, and the obtained mother liquid flows back to a system to form a seed crystal closed-loop cycle. According to the method, the scaling rate of the heat exchange tube bundle can be remarkably reduced, the cleaning period is prolonged, and the continuous and stable operation capacity of the MVR system is improved.