19 results about "Induction effect" patented technology

The invention provides a drilling gas cut monitoring method and device based on a magnetic induction effect, and the method comprises the steps: pumping drilling fluid carrying magnetic particles marked by a magnetic marker into a shaft, and measuring the nearby magnetic field intensity through a magnetic signal induction short section arranged at the bottom of the shaft to obtain magnetic field data; and acquiring gas cut monitoring data according to the change condition of the magnetic field data in the preset period. Therefore, by monitoring the magnetic signal which responds to the gas cut very quickly, advanced early warning of the early trace gas cut is realized, and the response speed and sensitivity are superior to those of a sound wave or resistivity method; by actively introducing a magnetic marker and adopting a differential detection and temperature compensation algorithm, the problems that a resistivity method is greatly interfered by a stratum and a sound wave method is seriously influenced by well conditions and noise are effectively solved, the anti-interference capability is high, and the reliability is high.

The invention, which relates to the technical field of sugarcane monitoring, discloses a monitoring system for the induction effect of a sugarcane flowering phase, the system comprises a multi-dimensional sensing layer, an intelligent decision-making center and a precise execution layer. The multi-dimensional sensing layer collects illumination, temperature, phenological period, stress index and ScFT6 gene expression data through an environmental factor sensing module, a plant physiological status sensing module and a key gene expression real-time monitoring module; the intelligent decision center corrects a photoperiod and a temperature threshold through a dynamic threshold regulation and control model, and evaluates an induction effect in combination with gene expression; the precise execution layer executes shading, light supplement and temperature and humidity adjustment to form closed-loop regulation, and the system realizes dynamic precise regulation, improves the induction effect stability, adapts to complex environments and variety differences, and is suitable for sugarcane flowering phase induction monitoring.

A kind of design method and sensor of wide-range current sensor based on magnetomotive effect, in the method, magnetomotive body is provided and the magnetomotive body is arranged between energized conductor and magnetic field sensor sensing chip;The magnetic flux density at the position of the magnetic field sensor sensing chip is reduced by the magnetomotive effect of the magnetomotive body, so that the magnetic field sensor sensing chip remains linear response in wide current range, and wide-range current measurement is realized.By the action of high magnetic permeability magnetomotive body, the magnetic flux density at the position of TMR sensing chip is significantly weakened, so that the sensor magnetic saturation phenomenon is effectively delayed.The method significantly widens the current measurement range of the sensor under the premise of maintaining small size, and realizes the breakthrough of traditional TMR current sensor in wide-range measurement field.

This application provides a steel material for reactors and a method for preparing the same. The steel material for reactors includes a steel substrate and a protective coating. The protective coating includes an in-situ oxide layer on the surface of the steel substrate and an alumina layer on the in-situ oxide layer. The in-situ oxide layer includes α-Fe₂O₃, and the alumina layer includes α-Al₂O₃. In the steel material for reactors, the α-Fe₂O₃ in the in-situ oxide layer serves as a growth template for the alumina layer. Through the mutual matching and induction effect of crystal structures, the protective coating forms a dense protective barrier on the surface of the steel substrate, effectively reducing the permeation of hydrogen and its isotopes deuterium and tritium.

The utility model provides an adsorption installation type wireless fast charger which comprises a base, one side of the base is rotatably connected with a supporting frame, the other side, far away from the supporting frame, of the top end of the base is rotatably connected with a placing plate, a sliding groove is formed in one side of the placing plate, guide grooves are formed in the positions, located on the two sides of the sliding groove, in the placing plate, and the guide grooves are communicated with the sliding groove. A wireless charger is slidably connected into the sliding groove, guide blocks are fixedly installed at the two ends of the wireless charger, and the two sets of guide blocks are slidably installed in the guide grooves correspondingly. According to the utility model, the magnetic plates are mounted in the multiple groups of mounting grooves in the placement plate, and the magnetic blocks are mounted on the two sides of the guide block, so that the wireless charger can relatively support and move according to the placement condition of the mobile electronic equipment, the induction effect of the adsorption induction area and the mobile electronic equipment is better, and the charging effect is improved.

The application discloses a bicycle power mechanism rotation detection method, an electronic device, an electronic system and a computer readable storage medium. The method comprises the following steps: acquiring acceleration of the power mechanism collected by an accelerometer, and / or acquiring a direction angle of the power mechanism collected by a magnetometer; and determining a first rotation number of the power mechanism based on the acceleration and / or the direction angle. The method can determine the rotation number of the power mechanism by using the acceleration collected by the accelerometer and / or the direction angle collected by the magnetometer, and does not need to detect the rotation number by recording the number of times that a magnet rotates through the position of a sensor by using a Hall effect or a magnetic induction effect. Therefore, the method not only has high anti-magnetic interference capability, but also reduces the influence of road bumps on collected data, thereby improving the accuracy of detection of a pedal frequency.

The application discloses a mosquito trapping module and a mosquito trapping device, and relates to the technical field of vector biological prevention and control. The mosquito trapping module comprises at least one chemotactic signal regulation unit for releasing a first gas containing chemotactic signal molecules; and at least one power signal driving unit for releasing a second gas, wherein the second gas has a chemotactic induction effect and can provide kinetic energy load. When the second gas is released, a directional jet flow with a preset momentum is generated. The directional jet flow actively envelopes the first gas and guides its diffusion in a local physical interference area outside the mosquito trapping module through the entrainment effect, so that the natural diffusion of the first gas is blocked and forced to converge into the core area of the directional jet flow, thereby forming a high-coherent composite gas plume in the space outside the mosquito trapping module. The mosquito trapping module can simulate the natural state of human or animal emission of CO2 and carrying of skin odor, and significantly improves the mosquito trapping efficiency.

The present application relates to the field of medical materials, in particular to an artificial ligament and a preparation method thereof.The artificial ligament provided by the present application comprises a gel layer-artificial ligament composite system by preparing a layer of PVA hydrogel on the surface of the woven artificial ligament in situ, which has biological activity and anti-creep performance, and is beneficial to improve the medium and long-term clinical prognosis of the woven artificial ligament.The artificial ligament provided by the present application can also adjust the rigidity, thickness and micro-topology of the gel layer under cyclic loading, thereby producing different biological activity regulation effects, and there is a balance point of rigidity and micro-topology, so that the cell ingrowth induction effect is best.The artificial ligament provided by the present application has simple composition, only relies on biophysical clues to regulate cell behavior, avoids the biological safety problems caused by complex biological chemical components, and can simultaneously realize the biological activity improvement and anti-creep performance improvement of the traditional PET woven artificial ligament.

The invention relates to the technical field of linear motors, and particularly discloses a linear actuating device and a hair cutting device.An installation frame is arranged, electromagnets are horizontally arranged in electromagnet installation parts, magnet sets are arranged in magnet set installation parts, and therefore the magnet sets are opposite to the magnetic poles of the corresponding ends of the horizontally-arranged electromagnets; after the electromagnet is electrified by alternating current, the magnet group can be promoted to reciprocate along the direction vertical to the central axis of the electromagnet through the magnetic induction effect of the electromagnet and the magnet group. The electromagnet is horizontally arranged, and meanwhile, the magnet group is arranged on the side of the electromagnet and is opposite to the magnetic pole of the electromagnet, so that the transverse space can be fully utilized, the height of the linear actuating device is greatly reduced, the length of a product adopting the linear actuating device is reduced, and the proportions of the linear actuating device in the length direction and the transverse direction are coordinated; the aesthetic feeling of the product appearance is improved.

The application provides a support seat rotating assembly and a twist machine. The support seat rotating assembly comprises a base, a support seat, a magnetic part and a first circuit board. The base is used for laying on a table top or a ground. The base is provided with a rotating seat. The support seat is rotatably connected to the base and rotates along the axis of the rotating seat. The magnetic part is installed on the rotating seat and is arranged stationary relative to the base. The first circuit board is contained in the internal space of the support seat and is installed on the support seat. The first circuit board is integrated with a Hall sensor. The Hall sensor is located on one side of the magnetic part. The Hall sensor adjusts the position along with the rotation of the support seat and has a Hall induction effect with the magnetic part. The number of rotations of the support seat relative to the base is counted through the Hall induction effect. The number of rotations of the user is counted. The number of rotations of the support seat relative to the base cannot be counted. The rotation convenience of the support seat rotating assembly is improved.

The application discloses a SiC super-junction structure, a SiC device and a manufacturing method thereof. The super-junction structure comprises a first P region, a high dielectric constant dielectric material and other oxides are filled in the first P region, the proportion of tetrahedral structure to octahedral structure in the molecular configuration of the high dielectric constant dielectric material exceeds a conventional value, the tetrahedral structure contains negative charges, and the octahedral structure contains positive charges; and a second P region, which is located on both sides of the first P region, has the same material as that of an N region, and is rich in positive charges, the positive charges are gathered by the negative charges of the tetrahedral structure in the first P region, and the width of the second P region is determined by the net excess charge amount of the tetrahedral structure to the octahedral structure in the first P region and the doping concentration of the N region. The application has the advantages that the negative induction effect of the tetrahedral structure effectively improves the withstand voltage under the condition of keeping the width of the super-junction structure, thereby reducing the size of the device and the cost.

The invention discloses an ice cream discharging device and an ice cream machine. The ice cream discharging device comprises a magnetic switch, an ice cream barrel, a feeding assembly and a discharging valve assembly. In the working process, when an operator pulls a valve rod to enable the valve rod to move upwards to reach an opening position, an induction magnet installed on the valve rod can be close to a magnetic switch along with the valve rod, a magnetic field induction effect is generated, and the magnetic switch starts a rotary driving piece in the feeding assembly to enable the rotary driving piece to start rotary feeding movement. The problem of pollutant contact possibly generated by a traditional mechanical contact type switch is effectively avoided; meanwhile, the counter can accurately record the number of times that the light is blocked by the shading base every time, and the number of times of blocking is converted into the actual number of turns of rotation of the rotary driving piece according to the number of times of blocking. And high-precision rotation number metering can be realized, so that the extrusion amount of ice cream is accurately controlled, and the component of each part of product is ensured to meet the standard requirement.

The invention discloses a negative pole piece and a secondary battery, and belongs to the technical field of electrochemical energy storage, the negative pole piece is characterized in that a lithium-loving layer and a framework deposition layer are simultaneously arranged on a current collector, and the conductivity of the framework deposition layer and a lithium-loving included angle of the lithium-loving layer are cooperatively regulated and controlled; according to the present invention, the lithium metal can be uniformly deposited from bottom to top based on the induction effect during the deposition process, the structure stability of the pole piece structure layer during the deposition process is high, the interface stability of the pole piece and the electrolyte is high, the side reaction is reduced, and the pole piece has characteristics of low expansion rate, long cycle life and ideal rapid charging performance when the pole piece is applied to the secondary battery.

The application relates to the technical field of rice processing, and discloses a single-walled carbon nanotube preparation method, which comprises the following steps: providing a stirring device in a reactor to provide a uniform dispersion environment, applying an electric field to realize directional control, changing the temperature periodically according to a preset program to experience a thermal shock-stabilization-gradual cooling cycle process, and generating a hydrodynamic pulse to form a transient stress induction effect by changing the stirring mode at a specific time point. The application realizes accurate regulation of the spatial configuration, crystallinity and orientation of the single-walled carbon nanotube through the synergistic effect of multiple physical fields, and prepares a single-walled carbon nanotube product with a special curvature structure, high crystallinity and highly oriented arrangement, so that the application requirements of high-end electronic devices, super capacitors and the like can be met.

The utility model relates to the technical field of pipeline anti-freezing heat preservation, in particular to an anti-freezing heat preservation pipeline suitable for cold regions, which comprises a pipe body and a group of inverter power supplies, the pipe body is made of metal, and a magnetic induction coil is arranged on the outer surface of the pipe body. When the alternating current generated by the inverter power supply passes through the magnetic induction coil, an alternating magnetic field with a continuously changing direction is generated, at the moment, the tube body located on the inner side of the magnetic induction coil can generate the alternating current (namely eddy current) under the induction effect, and the eddy current enables carriers in the tube body to move irregularly at a high speed. Carriers and atoms collide and rub with each other to generate heat energy, so that the pipe body generates heat, water flow in the pipe body can be heated, the temperature control assembly can control on and off of the inverter power supply according to the temperature of the water flow in the pipe body, and the temperature of the water flow in the pipe body is maintained within a certain range. Therefore, the pipeline has good anti-freezing and heat-insulating effects and is beneficial to being used in cold regions.

The invention relates to the field of medical materials, in particular to an artificial ligament and a preparation method thereof. According to the artificial ligament provided by the invention, a layer of PVA hydrogel is prepared on the surface of the woven artificial ligament in situ to form a gel layer-artificial ligament composite system, and the system has biological activity and creep resistance and is beneficial to improving medium and long term clinical prognosis of the woven artificial ligament. According to the artificial ligament provided by the invention, the rigidity, the thickness and the microscopic topological structure of the gel layer can be adjusted at the same time through cyclic loading, so that different biological activity regulation and control effects are generated, and a balance point of the rigidity and the microscopic topological structure exists, so that the cell ingrowth induction effect is the best. The artificial ligament provided by the invention is simple in component, cell behaviors are regulated and controlled only through biophysical clues, the problem of biosafety possibly caused by complex biochemical components is avoided, and the bioactivity and creep resistance of a traditional PET woven artificial ligament can be improved at the same time.

The invention discloses a garlic root tip culture and polyploidy induction integrated device, and relates to the technical field of garlic breeding, the garlic root tip culture and polyploidy induction integrated device comprises a tank body and a control device, a culture disc is arranged in the tank body, a plurality of uniformly distributed culture grooves are formed in the culture disc in a penetrating manner, and a driving mechanism for driving the culture disc to rotate is arranged on the tank body; a bearing mechanism is arranged in the tank body, and a feeding mechanism used for feeding for cultivation and induction of garlic root tips is arranged in the tank body. According to the device, atomized inducer liquid drops can be sprayed out in different directions when being sprayed, so that the atomized inducer liquid drops can be quickly and uniformly dispersed, and garlic is driven to rotate around the axis of the tank body in cooperation with the culture disc; therefore, the atomized inducer liquid drops can be uniformly attached to the surface of the root tip of the garlic, and the induction effect on the root tip of the garlic is further guaranteed.

The utility model discloses a table-board type long-distance local exhaust device with jet flow reinforcement, which comprises a circulating channel, and relates to the technical field of jet flow exhaust equipment. According to the utility model, a unique jet flow strengthening mechanism is designed, so that double effects are realized. Firstly, clean air at the rear part of the exhaust device is effectively prevented from being sucked in due to the jet flow strengthening effect; and secondly, the existence of the jet flow generates a remarkable induction effect on the exhaust air of the exhaust device opening, the induction effect further improves the speed of controlling the airflow, and the effect of directional exhaust air is enhanced. Thus, even under the condition of the same air volume, the long-distance local air exhaust device with the jet flow strengthening function can achieve the effective air exhaust distance farther than that of a traditional local air exhaust device. The design of the device not only improves the air exhaust efficiency, but also ensures the cleanliness of the air, thereby providing a more superior air treatment solution in industrial and commercial environments.