32 results about "Induction zone" patented technology

The invention relates to the technical field of pipes, and discloses an environment-friendly high-strength corrosion-resistant PE pipe production process which comprises the following steps: raw material pretreatment: mixing high-density polyethylene, low-density polyethylene, borate, polyvinylidene fluoride, epoxidized soybean oil and an antioxidant in proportion, and performing melting pretreatment to form a uniform mixture; dynamic cross-linking extrusion molding: carrying out dynamic cross-linking extrusion on the pretreated mixture in a three-zone temperature control extruder, wherein three zones are respectively a dynamic bond activation zone, a chain orientation induction zone and a dynamic locking zone; and carrying out on-line molecular chain orientation stretching: heating the extruded semi-cured pipe, and carrying out one-way or two-way stretching under a constant-temperature condition. Through a dynamic boron-oxygen cross-linked network extrusion process, an on-line molecular chain orientation stretching technology, a partitioned cooling process and a synergistic effect of a polyvinylidene fluoride thin layer coated on the surface, high strength, toughness and balanced inner and outer layer performance of the pipe are effectively realized.

The invention discloses an automatic docking charging pile for ship docking and a charging method, and relates to the technical field of ship charging, and the charging pile is composed of a base unit, a floating docking device, a visual positioning module and a charging control cabinet. A plurality of charging induction areas are arranged at a ship entrance port, charging bases are connected to the two sides of the charging induction areas, each charging base is registered in a base unit in a grid mode to construct a corresponding base unit grid, a floating butt joint object group is constructed, recognition and pairing are conducted through a butt joint rule predefined by the floating butt joint object group, and butt joint preparation is made. The method comprises the following steps: performing visual positioning on a target object which is prepared for docking, determining a position calibration area after a ship arrives at a port, executing area approaching guidance in the position calibration area, controlling the ship to enter a target charging area, finally charging the ship in the target charging area, and supervising the charging process. And efficient, accurate and safe ship charging is realized.

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 application provides a sensing warehouse door opening and closing device, belonging to the technical field of sensing warehouse doors. The sensing warehouse door opening and closing device has a warehouse door, a stretching mechanism, an identification mechanism and an illumination sensing mechanism. The warehouse door is rectangular and is arranged at the outlet position of a sensing warehouse. The stretching mechanism is arranged between the warehouse door and the sensing warehouse and is used to drive the opening and closing of the warehouse door. The identification mechanism is arranged on the surface of the warehouse door and is used to drive the opening of the warehouse door through the identification of a tea capsule. The illumination sensing mechanism is arranged on the side wall of the warehouse door and does not contact with the outside air and is used to drive the closing of the warehouse door through illumination sensing. The identification mechanism is a color change instrument, which is arranged on the top of the warehouse door and has the same size as the warehouse door. The device can solve the problem that the existing sensing warehouse door opening and closing cannot be sensed to be closed, causing the entry of dust.

The invention discloses an anti-pinch system for a vehicle folding door, and belongs to the technical field of safety protection of vehicle door systems. Comprising an anti-pinch rubber strip assembly installed at the vertical combination edge between a folding door movable end door plate and a folding door frame assembly, a control system electrically connected with the anti-pinch rubber strip assembly and a door body driving part electrically connected with the control system. The anti-pinch rubber strip assembly comprises a deformation cavity set and an induction cavity, and the deformation cavity set and the induction cavity are coupled in a stressed mode through an elastically-deformable connecting wall. A convex induction belt capable of elastically deforming is arranged in the induction cavity, and the control system is electrically connected with the induction cavity. According to the anti-pinch system, anti-pinch control with higher sensitivity, higher reliability and higher environmental adaptability is realized on the basis of meeting the requirements of laws and regulations.

The invention discloses a photoelectric flame velocity measurement system and method. The photoelectric flame velocity measurement system comprises a photoelectric flame velocity measurement module, an ion probe flame velocity measurement module, a pressure sensor and a data acquisition system, the photoelectric flame velocity measurement module comprises two optical fiber probes arranged along the flame propagation direction; the ion probe flame velocity measurement module comprises two ion probes arranged along the flame propagation direction; the two optical fiber probes and the two ion probes are connected with a data acquisition system; and the pressure sensor and one ion probe A are arranged on the same cross section. The device integrates optical signal detection and ion signal detection, has the advantages of the two detection modes, can prevent special condition errors and mutual backup caused by independent use of the two measurement modes through integration, is simple to operate, and does not need a large amount of correction work; and the length of an induction zone and the length of a reaction zone in detonation combustion can be directly measured.

The present application provides a sensing panel and a preparation method thereof, and a sensing device, wherein the sensing panel substrate includes at least one sensing area; at least one first electrode line arranged at intervals on the sensing area and extending along a first direction; at least one second electrode line arranged at intervals on the sensing area and extending along a second direction; wherein the second electrode line is arranged cross-insulated with the first electrode line; and a variable resistance layer covering the first electrode line and the second electrode line. By covering the variable resistance layer above the cross-insulated first electrode line and the second electrode line, when the variable resistance layer is subjected to pressure, the resistance changes, causing the change of the electrical signal on the first electrode line and the second electrode line, the sensitivity is greatly improved, the force position can be fed back through mechanical sensing with a small force, and the position and size can be digitally recorded, and the integration difficulty is greatly reduced.

The invention provides a vaporizer based on spiral turbulent flow enhanced heat exchange and condensed water integrated recovery. The vaporizer comprises a heat exchange pipe, spiral turbulent flow pieces are arranged on the inlet section of the heat exchange pipe to form a turbulent flow induction area, a condensed water disc is arranged at the bottom of the heat exchange pipe, and a water outlet of the condensed water disc is connected with a water storage container; and the heat exchange tube and the condensate water disc are arranged in the shell. Through the collaborative design of the spiral spoiler, the integrated condensate water disc and the optimized shell, the three core problems that in the prior art, the laminar flow heat exchange efficiency is low, condensate water energy is wasted, and the cold island effect is caused are systematically solved, and the gasifier is suitable for phase-change heat exchange equipment such as an LNG gasifier and an industrial steam gasifier.

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 utility model discloses a testing fixture capable of testing the length of an air bag drawstring, the surface of the testing fixture is provided with a positioning pin, one side of the testing fixture far away from the positioning pin is also provided with an induction zone, the positioning pin is matched with the drawstring head of the air bag drawstring, the induction zone is internally provided with an induction detector, and the air bag drawstring is arranged in the induction detector. And the sensing detector is used for sensing the position of the air bag drawstring. According to the utility model, the positioning pin is arranged on the surface of the detection tool and is matched with the induction detector, so that the fixation of the air bag drawstring and the automatic detection of the length of the air bag drawstring are realized, and the situation of missing detection or wrong detection easily occurring during manual detection is avoided.

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 utility model belongs to the technical field of lead heading machines, and particularly relates to a semiconductor lead heading device. The device comprises a base, a driving device, a sensor, a sliding block, a ram and a driving cylinder, the output end of the driving device is connected with the base and used for driving the base to reciprocate in the first direction, the output end of the driving device is further connected with an induction piece, and a first induction area and a second induction area are continuously formed on the induction piece. The sensing end of the sensor is arranged opposite to the sensing piece and is used for respectively sending out a first signal and a second signal in the first sensing area and the second sensing area; the sliding block is connected into the base in a sliding mode in the second direction perpendicular to the first direction. The two ram heads are sequentially installed on the sliding block in the second direction, and a forming groove is formed in the surface of one ram head. The end of an output rod of the driving cylinder is connected with the sliding block and used for driving the sliding block to do stretching or retracting reciprocating motion in the second direction according to the first signal and the second signal. The utility model is used for solving the problem that the lead end is difficult to form.

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.

Method and arrangement for controlling a wind farm. A method of controlling a plurality of wind turbines (3a, 3b, 3c) of a wind farm (1) is described. The method comprises determining an axial induction zone (48) of at least one wind turbine (3a, 3b, 3c) of the wind farm (1), and modifying the axial induction zone (48) by adjusting at least one of the following operational variables in order to control wind farm congestion: a yaw angle (γ) of a blade rotor (11a, 11b, 11c) of the wind turbine (3a, 3b, 3c), a pitch offset angle of at least one blade (11a, 11b, 11c) of the blade rotor (13a, 13b, 13c), a rotor speed of the blade rotor (13a, 13b, 13c).

A mould incubator belongs to the technical field of mould incubators. Which comprises a box body, the box body comprises a working box (2), a working cabin is arranged in the working box (2), a box door (7) capable of being opened and closed is arranged at an opening of the working cabin, and a door lock (3) used for locking the box door (7) is arranged at an end opening of the working cabin, and is characterized in that the door lock (3) comprises a lock body (18), the lock body (18) is vertically arranged on the side portion of the working cabin, and a plurality of lock cylinders are vertically arranged in the lock body (18); lock blocks in one-to-one correspondence with the lock cylinders are arranged at the box door (7); and the surface of the lock body (18) is also provided with a sensing area (10) for sensing the radio frequency card. According to the mould incubator, a plurality of lock cylinders are arranged in the lock body, and meanwhile, the sensing area for sensing the radio frequency card is arranged on the surface of the lock body, so that the sealing performance of the working cabin and the confidentiality of a sample in the working cabin are ensured at the same time.

The invention provides a method and a device for simplifying a gaseous fuel detonation chemical reaction kinetic model. The method comprises the following steps: screening an optimal basic combustion mechanism model as an initial model based on experimental data; selecting gaseous fuel detonation non-sensitive components from the initial model by analyzing the correlation degree among the components, removing the non-sensitive components and element reaction, and constructing a skeleton model; respectively selecting a gaseous fuel detonation non-sensitive component and a gaseous fuel detonation non-sensitive element reaction according to the influence of each component and each element reaction in the skeleton model on the ignition delay time and the induction zone length; and removing the gaseous fuel detonation non-sensitive component and the gaseous fuel detonation non-sensitive element reaction in the skeleton model, and constructing a gaseous fuel detonation simplified chemical reaction kinetic model with a small number of component and element reactions. The simplified model obtained by the embodiment of the invention has a good prediction effect on various detonation combustion performances under most test conditions.

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 provides a simple and convenient current transformer semi-finished product inspection device which comprises a first induction belt, a second induction belt and a plurality of primary side copper bars which are longitudinally and symmetrically arranged, a plurality of first bayonet sockets are arranged on the surface of the first induction belt at intervals, and a plurality of second bayonet sockets are arranged on the surface of the second induction belt at intervals. The upper end of the primary side copper bar is inserted into the first bayonet socket, the lower end of the primary side copper bar is correspondingly inserted into the portion, under the upper end of the primary side copper bar, of the second bayonet socket, and the primary side copper bar is sleeved with a semi-finished secondary side coil in a penetrating mode. According to the utility model, a plurality of current transformer semi-finished products can be simultaneously detected at one time, the technical problem that the primary side contact head needs to be frequently replaced and the standard needs to be changed in the detection process of the original detection device is solved, the operation process is simple and clear, and the detection efficiency of the secondary side coil of the semi-finished product is improved.

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 belongs to the field of hydrogen energy generators, and particularly relates to a grounding connection device for a hydrogen energy generator, which comprises a generator body, a plurality of uniformly distributed moving wheels are arranged at the bottom of the generator body, a fixed seat is fixedly connected to the back of the generator body, and a connection seat is slidably sleeved in the fixed seat. And the connecting seat is slidably connected with the generator body, a conductive wire is fixedly connected in the connecting seat, and the conductive wire is in contact with the generator body. By designing the electric lead and the grounding pole, the electric potential of the shell is conducted with the ground, electric shock of personnel caused by electric leakage or induction electrification of the shell is prevented, static electricity possibly accumulated on the surface of the shell is released, the use safety of the generator is improved, and grounding use can be realized only by inserting the inserting rod into the ground and rotating the rotating handle. Operation and use are convenient and fast, and grounding work efficiency is higher.

The key points of the innovative solution of the indirect monitoring device for failure of the piston oil seal of the pressure plate cylinder and the corresponding filter plate clamping mechanism of the present invention are: adding an indirect monitoring device for failure of the piston oil seal of the pressure plate cylinder, including a sensor mounting plate, a loose plate sensor, and a loose plate sensing plate; the loose plate sensing plate is installed on the lower side of the pressure plate and can move with the pressure plate; when the pressure plate cylinder is pressing the filter plate, the loose plate sensor is fixedly installed on the main beam of the frame outside the sensing area and critically close to the right side of the loose plate sensing plate, and is connected to the PLC program control system, which can monitor the abnormal loosening of the pressure plate online to indirectly judge the failure of the piston oil seal, and control the shutdown in time to prevent the filter chamber from spraying. The filter plate clamping mechanism, using this monitoring device, solves the technical problems that when the pressure plate cylinder presses the filter plate and maintains pressure for the filter chamber, the piston oil seal wears out of tolerance and leaks internally, which cannot be seen, cannot be directly monitored online and handled in time, and the cylinder gradually reduces pressure and the filter plate gradually loosens, which is difficult to detect in time, and the emergency shutdown is not performed until the filter chamber sprays; it expands energy and increases efficiency.

The present invention belongs to the technical field of pipeline weld detection, and discloses an online detection device for thick-walled pipeline weld defects, including a workbench, a hydraulic cylinder 1 and a support ring, the telescopic end of the hydraulic cylinder 1 is installed with a work frame, the internal rotation of the work frame is installed with two groups of transport rollers, and a motor 1 is installed, and the two groups of transport rollers are connected to the motor 1 through a gear set. The device enters the sensing area between the micro gratings upward through the baffle bar, and automatically shuts down the hydraulic cylinder 3 through the controller to maintain the constant compression distance of the spring 2 by the limit ring. When the ultrasonic probe faces workpieces of different sizes, it only needs to adjust the telescopic stroke of the hydraulic cylinder 3 and move the baffle bar to the specified position to keep the compression stroke of the spring 2 unchanged, so that the pressure between the ultrasonic probe and the workpiece surface is constant, avoiding excessive pressure and causing excessive wear on the bottom surface of the ultrasonic probe, thereby extending the service life of the device.

The utility model provides a graphite boat and a coil induction zone melting furnace. The graphite boat comprises a containing cavity defined by a front wall, a rear wall, a left wall, a right wall and a bottom wall. The graphite boat further comprises a groove part, the groove part comprises a left protruding part, a right protruding part and a groove, the left protruding part extends downwards in the front-back direction, the left protruding part is provided with a left contact face, and the left contact face is an arc face attached to the cylindrical inner wall of the quartz tube. The right protruding part extends downwards in the front-back direction and is provided with a right contact face, and the right contact face is an arc face attached to the cylindrical inner wall. The groove is opened upwards in the front-back direction and is opened downwards; the groove is used for inserting a fork arm of the forklift device into the groove when the graphite boat is placed into the quartz tube, and conveying the graphite boat into the quartz tube; when the graphite boat is taken out of the quartz tube, the fork arm of the forklift device is inserted into the groove of the graphite boat, and the graphite boat is moved out of the quartz tube. The coil induction zone melting furnace comprises a quartz tube, an induction coil zone melting mechanism and the graphite boat.

The invention provides a calculation resource allocation method, device and equipment for detonation tube calculation, and relates to the technical field of computers, and the method comprises the steps: obtaining calculation characteristic parameters and to-be-calculated parameters of a detonation tube, and to-be-allocated calculation resources; wherein the calculation characteristic parameters are used for representing the physical characteristics of the detonation process in the detonation tube calculation; determining an induction area and a non-induction area of the detonation tube according to the calculated characteristic parameters; matching the weights of the sensing area and the non-sensing area when the parameters to be calculated are calculated from the configured comparison tables of different parameters to be calculated, different areas and different weights; and according to the weights of the sensing area and the non-sensing area when the to-be-calculated parameters are calculated and the to-be-allocated computing resources, determining the computing resources allocated to the sensing area and the non-sensing area when the to-be-calculated parameters are calculated. Different computing resources are allocated for the sensing area and the non-sensing area according to the to-be-calculated parameters, and the utilization rate of the computing resources and the efficiency of detonation tube calculation are improved.

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 utility model discloses a stroke limiting device of a sand sucker, which is mounted above the water surface of a water tank to be treated through a frame, is convenient for a worker to overhaul and check the stroke limit of the sand sucker, and comprises a gear component, a driving gear and a plurality of driven gears, the driving gear is mounted on an output shaft of the speed reducer; the threaded screw rod is arranged in the central hole of the driven gear at the tail end in a penetrating manner; the sliding block is movably arranged on the threaded lead screw in a sleeving mode, and an induction rod is horizontally arranged on one side of the sliding block; the proximity switch is installed below the induction rod and on the proximity switch through a support, two induction areas are arranged at the head end and the tail end of the movement stroke of the induction rod, the speed reducer drives the gear assembly to rotate in the same direction, the driven gear at the tail end drives the threaded lead screw to rotate in the same direction, and the sliding block and the induction rod move linearly on the threaded lead screw. After the induction rod makes contact with the induction area of one proximity switch, the induction area sends an electric signal, the speed reducer rotates reversely, the sand sucker is controlled to reciprocate, and control is accurate.

The utility model relates to the technical field of sampling for detection, in particular to a sampling device for coal quality detection, which comprises a mounting column, a first telescopic column is fixedly connected to the bottom of the mounting column, a spiral shaft is arranged in the middle of the first telescopic column, a second telescopic column is slidably connected to the bottom of the first telescopic column, and an induction belt is arranged in the middle of the second telescopic column. The bottom of the second telescopic column is fixedly connected with a supporting column, and the bottom of the supporting column is fixedly connected with a cone. Through the arrangement of the induction belt, the motor body, the induction analyzer, the transmission line and the display screen, during use, the motor body drives the induction belt to operate, the motor body drives the induction analyzer to operate, the induction analyzer drives the transmission line to operate, and the transmission line drives the display screen to operate; therefore, the worker can clearly know the reaching depth of the device when digging the coal downwards, and the collected data is more accurate.

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 present invention relates to the technical field of throat swab sampling, and discloses an integrated throat swab self-service sampling device, comprising a body, wherein a pre-processing chamber for placing a sampling tool, a sampling unit and a post-processing chamber are arranged in the body, the sampling unit is provided with a sensing area, a user camera and a scanning head, and the post-processing chamber is provided with a cap-screwing structure for twisting off or covering a tube cover of a sampling tube, a shearing structure for cutting off the throat swab sampled by the sampling tool and placing it in the sampling tube, and a storage robot for placing the sampling tube for placing the throat swab in a sample storage box; the user obtains the sampling tool in the pre-processing chamber, matches the user's information with the information of the sampling tool, unscrews the tube cover of the sampling tube through the cap-screwing structure, cuts the throat swab and places it in the sampling tube through the shearing structure, covers the sampling tube with the tube cover, and the storage robot places the sampling tube in the sample storage box. The whole process reduces the probability of staff members being infected with the virus, avoids safety hazards, is highly efficient, and meets the needs of rapid nucleic acid sampling for a large group of users.

The present invention relates to the field of hospital hygiene, and specifically provides a medical hygiene auxiliary system, which comprises: an infrared transmitting module arranged at the door of a ward, and used for establishing a sensing area; a sensing unit, and used for detecting that a person enters the sensing area to control the infrared transmitting module to transmit an infrared signal; a portable unit, and the portable unit is provided with: an infrared receiving module; a communication module, and used for establishing a communication connection between a hospital server and the portable unit; and a reminder module, and used for reminding medical staff to perform disinfection; the medical hygiene auxiliary system disclosed in the embodiment of the present invention establishes a sensing area by arranging the infrared transmitting module and the sensing unit to work together, and receives the sensing area information by arranging the portable unit and the infrared receiving module, and reminds the medical staff to perform disinfection in time after entering the sensing area through the reminder unit to urge the medical staff to perform disinfection, and the present invention has the advantage of low misjudgment rate.