128 results about "Magnetic intensity" patented technology

The invention relates to the technical field of magnetic field measurement, and provides an error correction method and device of a target magnetometer, electronic equipment and a storage medium. The method comprises the following steps: acquiring magnetic intensity of a calibration magnetic field, and performing magnetic intensity measurement on the calibration magnetic field corresponding to a plurality of temperatures based on a target magnetometer to obtain a magnetic intensity measurement value of the calibration magnetic field corresponding to each temperature; establishing an error prediction model between the temperature and the measurement error; obtaining a to-be-measured magnetic field temperature, and determining an error offset coefficient corresponding to the to-be-measured magnetic field temperature according to the to-be-measured magnetic field temperature and the error prediction model; performing magnetic intensity measurement on the to-be-measured magnetic field based on target magnetometer measurement to obtain a magnetic intensity measurement value of the to-be-measured magnetic field; and correcting the magnetic intensity measurement value of the to-be-measured magnetic field based on the error offset coefficient corresponding to the temperature of the to-be-measured magnetic field to obtain a magnetic intensity correction value of the to-be-measured magnetic field, thereby solving the problem that the temperature affects the magnetic intensity measurement accuracy of the target magnetometer in the prior art, and improving the measurement precision and reliability of the target magnetometer at different temperatures.

A deadbolt system includes a stationary magnetic sensor that senses magnetic field values from at least one of the first and second magnets while rotating one or more gears that drive a deadbolt between extended and retracted positions during locking and unlocking operations. A controller compares the sensed magnetic field values during the rotating with expected magnetic field values. A tamper condition is determined in response to the sensed magnetic intensity falling outside a predetermined range for the expected magnetic intensity.

The invention discloses a full-electric radiation ring magnetic field forming press which comprises a sealing box body, a powder weighing device, a feeding device and a forming device are arranged in the sealing box body, a mold is fixedly connected to a rack through a concentrating flux plate, an upper guide plate is arranged at the upper end of the concentrating flux plate and can vertically move under the action of an upper electric cylinder, and a lower guide plate is arranged at the lower end of the concentrating flux plate. The upper electromagnet assembly is connected to the upper guide plate, the upper punch is connected to the lower end of the upper electromagnet assembly, the lower guide plate is arranged at the lower end of the magnetic conductive plate and can vertically move under the action of the lower electric cylinder, the lower electromagnet assembly is fixedly connected to the lower guide plate, and the lower punch is fixedly connected to the upper end of the lower electromagnet assembly. The upper electromagnet assembly and the lower electromagnet assembly are matched for magnetizing, the core rod is arranged in the middle of the rack and can stretch out and draw back along a die cavity of the die under the action of the core pulling electric cylinder, the lower die punch stretches into the die cavity of the die, and the lower die punch, the core rod and the die cavity form an annular cavity used for being filled with neodymium iron boron powder. More uniform magnetizing density and higher magnetizing intensity are effectively ensured.

The invention discloses a geomagnetic detection data optimization method, which comprises the following steps: generating a standard magnetic field by using a parallel ring, recording the magnetic field intensity as a ring mark measurement value, measuring the magnetic measurement intensity of the standard magnetic field by using a magnetic measurement probe based on the standard magnetic field, recording the magnetic measurement intensity as a ring measurement measurement value, and calculating the geomagnetic detection data based on the ring mark measurement value and the ring measurement measurement value. And obtaining a probe sensitivity correction coefficient of the magnetic measurement probe. And measuring the local magnetic field intensity of the location by using the magnetic probe, recording the local magnetic field intensity as a geometric measurement value, and combining with a reference standard value of the local magnetic field intensity to obtain the zero point deviation of the magnetic probe. The reference standard value of the local magnetic field intensity can be measured by using a higher-resolution instrument, and can also be published in related standards. And correcting the magnetic field measurement value by using the probe sensitivity correction factor and the zero deviation. According to different earth environment magnetic fields in different regions, the actual measurement value of the magnetic field can be correspondingly corrected.

The invention relates to a ferromagnetic metal stress and fatigue measurement method and device based on a magnetic induction chain, and the device comprises an external magnetic field generation device, a magnetic induction chain detection device, and a data processing system. The magnetic induction chain detection device is used for detecting the magnetic induction intensity value and the change of the magnetic induction intensity value at a surface detection point, and the data processing system is used for receiving and processing magnetic intensity data, analyzing the stress and fatigue damage condition of the ferromagnetic metal material and monitoring the stress and fatigue state of the ferromagnetic metal material; a magnetic induction chain is excited by an external magnetic field, stress and fatigue damage conditions of a material are observed in real time by monitoring a magnetic induction intensity value and changes of the magnetic induction intensity value, and the method has the advantages of high sensitivity, high reliability, high real-time performance, capability of solving the dispersion problem existing in an existing method and the like, realizes stress and fatigue measurement of ferromagnetic metal, and is suitable for large-scale popularization and application. And an effective stress and fatigue measurement means can be provided for ferromagnetic metal in engineering application.

The invention provides a thermal power plant high-temperature section oxygen-free oxygen adding monitoring system and method, and relates to the technical field of oxygen content monitoring, an error prediction model is constructed according to monitoring errors of oxygen content monitoring equipment at different accumulative flows, and therefore the real oxygen content in feed water is obtained; then oxygen is injected, a magnetic intensity curve of the high-temperature steam pipeline is obtained, the corresponding relation between the thickness of ferroferric oxide and the magnetic intensity is obtained through a laboratory, a pH value curve of discharged steam is obtained, and the oxygen content condition of the steam is judged and regulated; according to the oxygen regulation and control amount and the intensity curve, the modification amount at different accumulative flows is obtained, the monitoring error is modified, the system comprises a water supply oxygen content obtaining module, a rear-end monitoring module, an oxygen content analysis module and a modification module, and smooth generation of the ferroferric oxide oxidation layer is guaranteed in the mode that monitoring is conducted from the front end and the rear end respectively.

The invention provides a spacecraft magnetic moment measurement method and system based on a four-point method, and the method comprises the steps: controlling a spacecraft to rotate a circle after a plurality of magnetometers are radially arranged at the geometric center height of the spacecraft, and measuring the magnetic intensity values corresponding to four preset measurement points through the plurality of magnetometers; calculating a plurality of key magnetic moment values according to the magnetic intensity values and the measurement spacing values corresponding to the four measurement points; based on the multiple key magnetic moment values, the magnetic core height of the spacecraft is obtained through calculation; adjusting the arrangement height of the plurality of magnetometers to the magnetic core height of the spacecraft; and controlling the spacecraft to rotate for a circle, and obtaining a magnetic moment measurement value of the spacecraft according to the magnetic intensity readings corresponding to the magnetic core heights of the plurality of magnetometers. According to the scheme provided by the invention, the equatorial plane positioning basis of the near-field method can be adjusted from the geometric center of the spacecraft to the magnetic core, the magnetic moment is accurately measured under the condition that the magnetism in the spacecraft is relatively dispersed, and the measurement precision and reliability of the magnetic moment of the spacecraft are improved.

The utility model belongs to the field of magnetic measurement equipment, and provides a magnetic shielding cylinder for magnetometer calibration, which comprises a cylinder body, the cylinder body comprises two double-layer cylinder shells which are butted and matched left and right, the shaft end of each double-layer cylinder shell is provided with a channel, and each double-layer cylinder shell comprises an inner-layer cylinder shell, an outer-layer cylinder shell, an inner butting port, an outer butting port and a sealing plate, a reversing insertion group used for reversing the wire direction is arranged in the barrel body, the reversing insertion group comprises a left insertion piece and a right insertion piece, the opposite ends of the left insertion piece and the right insertion piece are provided with an upper insertion opening and a lower insertion opening, and two vertical channels are formed in the positions of the upper insertion opening and the lower insertion opening after the left insertion piece and the right insertion piece are connected in an inserted mode. According to the invention, the two double-layer cylindrical shells which are butted left and right are adopted, so that the double-layer cylindrical shell can be conveniently opened and closed, only two channels of four channels which are originally required can be communicated with external equipment by using the reversing inserting group in the double-layer cylindrical shell, the magnetic intensity measurement error can be reduced, and the double-layer cylindrical shell is reasonable in design, simple in structure, relatively high in practicability and suitable for large-scale popularization.

The utility model discloses an air drilling rock debris sorting device which comprises a crusher used for crushing rock debris so as to reduce the particle size of the rock debris; a plurality of blanking positions are sequentially arranged on the blanking platform at intervals in the first direction; the magnetic suction roller is located above the blanking platform and can rotate in the circumferential direction and move in the first direction; the magnetic suction roller is provided with an initial position located under a discharge port of the crusher, and when the magnetic suction roller is located at the initial position, the magnetic suction roller can adsorb rock debris particles crushed and falling from the crusher to the outer wall of the magnetic suction roller; in the process that the magnetic attraction roller moves in the first direction from the initial position, the magnetic force of the magnetic attraction roller is in a decreasing trend, so that the rock debris particles adsorbed by the magnetic attraction roller fall down according to the magnetic force and are distributed to different blanking positions, the rock debris particles are sorted according to the magnetic intensity, operation is convenient, and the sorting efficiency of the magnetic rock debris is improved.

The present invention discloses a navigation method based on real-time measurement of geomagnetic field. Based on two types of magnetic field information, namely magnetic field intensity and magnetic field inclination, a two-dimensional gradient approximation algorithm is used to realize long-distance geographic navigation; according to the geomagnetic intensity and inclination information of the known destination, the navigation body measures the geomagnetic field information of the navigation trajectory in real time during the navigation process, and predicts the heading angle according to the gradient information of the magnetic field intensity and inclination. The gradient information is continuously updated during the navigation process until the navigation of the navigation body is realized. The present invention can also maintain the stability of navigation when there are errors in geomagnetic intensity measurement, inclination calculation, step length estimation and heading deflection direction.

The invention discloses an unmanned winery workshop positioning system based on a magnetic label, and the system comprises the magnetic label, a magnetic sensor, and an automatic guiding vehicle. The layout of the magnetic labels is based on the moving range of the automated guided vehicle, the workshop logistics route and the detection range of the magnetic sensor, it is ensured that the automated guided vehicle always covers at least one magnetic label on any moving path, each magnetic label has a unique magnetic field code, and the magnetic labels are distinguished through different magnetic intensity and polarity combinations. The invention discloses an unmanned winery workshop positioning system based on a magnetic label, accurate positioning and automatic navigation of an automatic guide vehicle in a winery workshop are ensured through combination of the magnetic label and a magnetic sensor in cooperation with a positioning algorithm, and the main application scene of the system is an unmanned winery workshop. And the production efficiency is improved through comprehensive automatic management.

The invention discloses an active and passive combined zero magnetic device and a design method, and belongs to the field of magnetic shielding. The active and passive combined zero magnetic device comprises a passive shielding cabin composed of multiple layers of permalloy, and an equal-interval structure is arranged between every two adjacent layers; provided is a demagnetization system. The permalloy has high magnetic permeability, when a magnetic field encounters the permalloy with high magnetic permeability, magnetic field lines tend to spread along a path with higher magnetic permeability, namely walk along a permalloy layer instead of penetrating through a material, so that the environmental magnetic field is further reduced, a near-zero magnetic field environment is realized by designing a multi-layer permalloy cabin structure, and the performance of the magnetic field is improved. The demagnetizing coil is wound on the inner side wall and the outer side wall of the permalloy cabin body, and the demagnetizing coil is communicated with the external demagnetizing equipment through the demagnetizing interface at the end part of the demagnetizing coil, so that the amplitude of the demagnetizing current is gradually attenuated to the demagnetizing coil, and the permalloy cabin body is demagnetized; and the magnetization intensity of the material caused by the influence of the external environment and irresistible stress in the processing process can be weakened through the demagnetizing coil.

The invention relates to the technical field of electronic locks, in particular to an electronic lock with multiple magnetic detection functions and an unlocking method thereof, the electronic lock comprises a key detection mechanism and a controller, the key detection mechanism is in signal connection with the controller, and the key detection mechanism is provided with a first signal detection area and at least one second signal detection area; the first signal detection area is used for detecting the magnetic intensity of the key, and the second signal detection area is used for detecting the magnetic field parameter of the key; the first signal detection area generates an activation signal according to a first detection result of the magnetic intensity, and the activation signal is used for waking up the controller; and the controller controls the second signal detection area to be started and controls the electronic lock and / or equipment applied by the electronic lock to be in an opening state or a closing state according to a second detection result of the magnetic field parameter.

The invention relates to the technical field of magnetic product processing, in particular to conveying equipment with a sorting structure for magnetic product processing, and when magnetic products with different magnetic intensities pass through the lower portion of a magnet, the rotating angles of polygonal mounting grooves are different, so that guide plates rotating to one end of a conveying belt assembly are different; the magnetic products fall between the different guide plates along with the change of the magnetic intensity of the different magnetic products, so that the magnetic products with the different magnetic intensity are screened, after the magnetic products fall between the two guide plates, the polygonal mounting groove is reset, and the magnetic products are thrown out from the position between the two guide plates to the other conveying belt assembly under the inertia effect. The magnetic separation assembly guides different magnetic products to different positions through the rotation angle difference of a polygonal mounting groove and a guide plate, and finally throws the magnetic products to corresponding conveying belts through inertia, so that the separation precision is higher, the adaptability is high, various magnetic materials can be compatible, and the situation of mistaken separation is avoided.

A plastic-coated rotor comprises a magnetic steel, a first shell is attached to the bottom wall and the outer wall of the magnetic steel, the first shell extends to the inner side of the bottom wall from the top end of the outer wall, a second shell is attached to the top wall and the inner wall of the magnetic steel, a shaft hole is formed in the second shell, and a shaft hole is formed in the shaft hole. A plurality of grooves are formed in the peripheries of the top and the bottom of the shaft hole at intervals. According to the plastic-coated rotor, the first housing is attached to the outer wall and the bottom wall of the magnetic steel, the first housing is used for protecting the magnetic steel, and because the first housing is attached to the magnetic steel, the surface magnetic intensity of the first housing is ensured, and the torque limit of the rotor is enhanced; the top of the outer wall of the magnetic steel and the first shell on the inner side of the bottom wall are in smooth transition with the magnetic steel, so that an anti-falling effect is achieved, plastic coating clamping can be realized in the subsequent plastic coating process, and edge warping and seam opening are prevented; grooves are formed in the peripheries of the top and the bottom of the shaft hole of the second shell at intervals, and the injection molding effect of the second shell can be improved.

The invention relates to a rock mass internal settlement monitoring system and monitoring method, and relates to the field of geotechnical engineering deformation monitoring, and the rock mass internal settlement monitoring system comprises a settlement monitoring system and a monitor system. The settlement monitoring system comprises a hollow monitoring pipe with two open ends; the auxiliary guide head is connected with the monitoring pipe; the monitoring pipe is sleeved with the monitoring mark; and the monitor system can be correspondingly and movably adjusted along the hollow inner wall of the monitoring pipe. The monitoring mark is buried in the slurry filled in the drill hole, the slurry is anchored with the hole wall of the drill hole, and the monitoring mark and the rock stratum are driven to synchronously move and deform, so that the range limitation of a traditional mounting base or a limiting ring is eliminated, the influence of hole wall block stone falling on the position of the monitoring mark is avoided, and the precision of rock stratum settlement monitoring can be further improved. For monitoring marks of different specifications, the magnetic intensities generated by the settlement monitor are different, and the monitoring marks at different positions are distinguished according to the difference of the magnetic intensity amplitudes, so that the settlement information of the rock stratum can still be accurately monitored under the condition that part of the monitoring marks are invalid.

The utility model relates to the technical field of permanent magnet brakes, in particular to a high-magnetism transverse permanent magnet brake which comprises a shell cavity and a permanent magnet unit, a coil is arranged in the shell cavity, and the permanent magnet unit is embedded in the end face of one side of the shell cavity. The piezomagnetic plate is in butt joint with the shell cavity, and the outer edge of the piezomagnetic plate is in compression joint with the permanent magnet unit; the brake disc rotor is used for being connected with a motor rotating shaft; the movable plate is arranged between the brake disc rotor and the shell cavity, and the movable plate and the brake disc rotor are connected into an integrated structure; the axis of the permanent magnet unit points to the movable plate, so that the coil is powered off, and the movable plate gets close to the shell cavity. By changing the mounting position of the permanent magnet, the distance between the permanent magnet and the movable plate is shortened, the braking magnetic strength is ensured, and a more reliable braking effect is achieved.

The invention relates to the technical field of lasers, in particular to a high-performance non-magnetic 795nm collimation laser light source which comprises a laser body, and the laser body comprises a 795nm Vcsel laser chip, a thermistor, a capacitor, a ceramic substrate, a thermoelectric cooler TEC, a primary refraction prism, a secondary refraction prism, an Al alloy base, a collimation lens, a lens base, a non-magnetic tube shell and a cover plate. The invention aims to realize the following technical effects: a non-magnetic packaging scheme is provided, so that the magnetic intensity of a device is less than 1nT, and an application scene with strict requirements on a magnetic field environment is met; a microminiature laser is designed, the overall device size reaches 8 * 7 * 7 mm, the equipment size is reduced, and the space utilization rate is improved; an airtight packaging structure is adopted, the reliability of the device is ensured, and the service life of the device is prolonged.

The embodiment of the utility model provides a magnetic unit, a magnetic assembly, electronic equipment, an electronic equipment accessory and a charging seat, the magnetic unit comprises a first magnetic part, a second magnetic part and a third magnetic part, and the first magnetic part has a magnetizing direction along a first axial direction; the second magnetic part has a magnetizing direction along the radial direction; and the third magnetic part has a magnetizing direction along a second axial direction, and the second axial direction is opposite to the first axial direction, so that the magnetic unit has a structure with three magnetizing directions, the magnetic field distribution is guided, the magnetic intensity is enhanced, and the magnetic attraction reliability is improved.

The utility model provides an equipment protection device, and the device comprises a first part which is provided with a first stress detection module and a plurality of magnets; the second part is provided with a second stress detection module, a magnetic intensity control module and a plurality of magnetic suction coils; the magnetic intensity control module is in communication connection with the first stress detection module and the second stress detection module. The first stress detection module is used for detecting the value of pressure applied to the first component; the second stress detection module is used for detecting the value of pressure applied to the second component; and the magnetic intensity control module is used for controlling the magnitude of current flowing through each magnetic attraction coil according to the pressure values detected by the first stress detection module and the second stress detection module so as to control the magnitude of adsorption force between each magnetic attraction coil and the corresponding magnet. The adsorption force can be controlled according to the stress borne by the first component and the second component, and equipment falling caused by insufficient adsorption force between the first component and the second component is avoided.

The invention relates to the field of digital media, in particular to a shooting device for digital media art design, which comprises a triangular telescopic bracket, a supporting rod, a holder shell and a rotating ball, a cylinder is in sliding fit in the holder shell, a locking knob is rotatably connected to the side wall of the holder shell, a clamping assembly is arranged on the locking knob, and the rotating ball is arranged on the triangular telescopic bracket. A plurality of arc-shaped blocks are fixedly connected to the top of the cylinder, magnetic sliding blocks are arranged in the arc-shaped blocks in a sliding fit mode, suction cups are fixedly connected to the arc-shaped blocks, a plurality of transmission cavities are formed in the cylinder, piston plates are arranged in the transmission cavities, connecting rods are fixedly connected to the top ends of piston rods, and sliding rheostats are arranged in the transmission cavities. Electromagnets are fixedly connected to the tops of the transmission cavities, and driving assemblies are arranged at the bottoms of the transmission cavities. According to the invention, the rotating ball rotates to cause the pressure change in the sucker, the magnetic intensity change of the corresponding electromagnet is controlled to apply reverse tension to the rotating ball, the rotating ball is prevented from rotating slightly due to the dead weight of the shooting device, and the stability of the target angle of the shooting device is improved.

A deadbolt system includes a stationary magnetic sensor that senses magnetic field values from at least one of the first and second magnets while rotating one or more gears that drive a deadbolt between extended and retracted positions during locking and unlocking operations. A controller compares the sensed magnetic field values during the rotating with expected magnetic field values. A tamper condition is determined in response to the sensed magnetic intensity falling outside a predetermined range for the expected magnetic intensity.

The invention belongs to the technical field of mechanical engineering lubrication, and particularly relates to a sliding bearing based on a non-uniform discrete magnetic field. Ni rows of magnet arrays are uniformly distributed on the lining in the circumferential direction of the lining, and mj permanent magnets are assembled on each row of magnet arrays at equal intervals; the magnetizing intensities of the permanent magnets sequentially arranged along the two sides of the axis are gradually reduced from the middle plane of the axis of the bushing; the magnetizing intensity of the permanent magnets in the magnet arrays which are sequentially arranged from the bottom of the bushing to the top along the circumferential side wall of the bushing is gradually reduced step by step; therefore, in the mj * ni permanent magnets which are uniformly arranged, the magnetizing intensities of the permanent magnets corresponding to the two adjacent columns and the two adjacent rows are equal and different; a non-uniform discrete magnetic field is formed through the mj * ni permanent magnets, when the rotating shaft rotates at a high speed or bears a large load, the thickness change of a lubricating oil film caused by eccentricity can be effectively inhibited, the thickness of the minimum oil film is increased, the thickness of the lubricating oil film tends to be uniform on the whole, and the lubricating effect is improved.

The invention relates to the technical field of magnet magnetizing, in particular to a magnet magnetizing process which comprises the following steps of jig arrangement, magnet arrangement, magnetizing, jig unloading and loading and outputting, by designing a special jig, full-automatic filling, loading and clamping of tile-shaped magnets are achieved by utilizing the jig to be matched with a vibration disc, and the magnet magnetizing efficiency is improved. The jig shows excellent accuracy in the driving, clamping and stacking process, it is ensured that each magnet can accurately fall to a designated position, the stacked magnets are arranged in order, the neat arrangement state lays a solid foundation for the subsequent magnetizing process, and due to the fact that in the magnetizing process, the magnet can not be damaged easily, and the production efficiency is greatly improved. The arrangement state of the magnets directly affects the magnetizing effect, and the neat arrangement enables the magnetic field distribution to be more uniform, so that each magnet can obtain a stable and consistent magnetizing effect, the problems of insufficient magnetizing intensity, non-uniform magnetic field distribution and the like caused by disordered arrangement are effectively avoided, and the magnets are always kept in a good performance state.

The utility model discloses a motor internal winding positioning assembly, particularly relates to the technical field of positioning assemblies, and comprises a base, a connecting assembly is arranged on the base, the connecting assembly comprises a rotor tray arranged in the middle of the base, the rotor tray is rotatably connected with the base, and a plurality of winding columns are distributed on the outer side of the rotor tray. And a plurality of protection plates are arranged on the outer side of the rotor tray. By arranging the connecting assembly, a wire group is wound on the wire winding stand columns, wires are combed through the wire winding stand columns, the wires can be effectively prevented from being wound together, meanwhile, by arranging the limiting holes, the wire winding stand columns can be easily installed on the base to be positioned, and the wire winding stand columns can be conveniently arranged according to requirements. The number of the winding stand columns is increased or decreased, the function of adjusting the magnetic conduction intensity is achieved, wires are wound on the winding plates, the wires on the winding stand columns correspond to magnetic conduction channels formed when the wires on the winding plates are powered on, and the stability of the rotor tray during rotation is ensured.

The present invention provides a polymerized rotating magnetic field device, including a cylindrical shell, a fixed disk and a rotating disk arranged in the shell, wherein the fixed disk is fixedly connected in the cylindrical shell, a shaft rod is vertically arranged at the center of the fixed disk, and six electromagnetic coils are fixedly connected with the center of the fixed disk as a dot to form a three-phase star circuit connected to a power supply; an iron powder glue layer is arranged on the fixed disk, and the iron powder glue layer is used for magnetic conduction and covering the gaps between the components in the enclosure of the fixed disk; the rotating disk has a bearing seat arranged at the center, the bearing seat is connected to the shaft rod of the fixed disk, and a plurality of permanent magnetic rings are fixedly connected with the center as a dot array on the rotating disk, and an iron powder glue filling layer is arranged on the rotating disk. The present invention has the advantages of a small body, low cost, and an average surface magnetic induction intensity of not less than 1500 Gauss, and is suitable for making physical therapy and health care products for use in families and small clinics.

The invention relates to the field of electromagnetism, and discloses a transformer inductor base design method and system, and the method comprises the steps: analyzing the structural parameters of a transformer inductor, constructing a three-dimensional model of a transformer inductor element, constructing a three-dimensional model of an initial base of the transformer inductor, and constructing a three-dimensional model of the initial base of the transformer inductor; calculating a matching coefficient of the element three-dimensional model and the initial base three-dimensional model; performing simulation test on the component three-dimensional model and the base three-dimensional model; calculating the electromagnetic intensity of the element three-dimensional model, calculating the short-circuit reactance and the short-circuit impedance of the element three-dimensional model, calculating the leakage flux of the element three-dimensional model in the air, calculating the leakage flux intensity of the element three-dimensional model, and constructing an electromagnetic shielding device of the base three-dimensional model; analyzing working heat energy and a heat conduction path of the component three-dimensional model, and constructing a heat dissipation device of the base three-dimensional model; and establishing a balance network of the transformer inductor, the electromagnetic shielding device and the heat dissipation device, integrating the electromagnetic shielding device and the heat dissipation device into the three-dimensional model of the base, and constructing the base of the transformer inductor. According to the transformer inductor base, the heat dissipation and electromagnetic shielding effects of the transformer inductor base can be improved.

The invention belongs to the technical field of magnetic field shielding of transformer substation robots, and particularly relates to a magnetic field shielding device of a transformer substation robot and the transformer substation robot. The mounting seat is provided with a containing cavity used for mounting a to-be-shielded electronic module, the magnetic field detection mechanism comprises an X-axis detection antenna assembly, a Y-axis detection antenna assembly, a Z-axis detection antenna assembly and a magnetic field processing controller, and the magnetic field processing controller is mounted in the containing cavity. While the electromagnetic protection cost is reduced, the change of the amplitude of the resultant magnetic field can be detected, electromagnetic shielding is performed when the electromagnetic intensity is high, and electromagnetic protection at the top is canceled when the electromagnetic intensity is low, so that the influence of electromagnetism on the to-be-shielded electronic module can be effectively prevented; and the influence of electromagnetic protection on the wireless communication function of the robot can be reduced, and the electromagnetic protection and daily use requirements of the transformer substation robot are met.

The application discloses an outer vacuum obtaining and magnetic shielding device for ground testing of a hydrogen atomic clock, comprising an outer vacuum preparation mechanism, wherein the outer vacuum preparation mechanism comprises a two-stage vacuum pump set, the two-stage vacuum pump set comprises a rotary vane molecular pump and a diaphragm oil-free mechanical pump, the two-stage vacuum pump set further comprises a vacuum gauge, a magnetic shielding cover, a pipeline, a vacuum valve one, a vacuum valve two and a magnetometer; the molecular pump and the mechanical pump are connected in series, and the mechanical pump serves as a front-stage pump. The application integrates zero magnetic treatment and environment control functions on the basis of a traditional vacuum pump set, is suitable for spacecraft assembly testing environment, meets severe testing conditions of the hydrogen atomic clock, is convenient to maintain, is suitable for transportation, can realize real-time measurement and control of vacuum degree and magnetic intensity, can realize rapid pressure relief testing of the hydrogen atomic clock in the device, verifies performance indexes of the hydrogen atomic clock under extreme environment, and is a necessary device for ground testing of next-generation spaceborne precise time and frequency instruments.

The embodiment of the invention discloses a course estimation method and a related device. The method comprises the following steps: determining a magnetic course and a first attitude angle represented by a roll angle, a pitch angle and the magnetic course based on the roll angle, the pitch angle and a magnetic intensity measurement value of electronic equipment; acquiring the course of a positioning system of the electronic equipment, and replacing the magnetic course with the course of the positioning system to obtain a second attitude angle; performing quaternion conversion on the first attitude angle to obtain a first quaternion, and performing quaternion conversion on the second attitude angle to obtain a second quaternion; the first quaternion and the second quaternion serve as input data of a filtering model, state variables of the filtering model and error covariance of observation noise are adjusted, and a target filtering model is obtained; and determining the course of the electronic equipment according to the target filtering model. Therefore, by introducing the course of the positioning system, and taking the course and the magnetic course as the observed quantity of the filtering model, optimization and adjustment of the filtering model are realized, and further the course estimation precision is improved.