328 results about "Magnetic films" patented technology

Aspects of transcranial magnetic stimulation (TMS) devices are described. In one example, the TMS device includes a magnetic flux shutter that includes a multi-turn coil and a magnetic film. The magnetic film extends in a loop to encircle a region, and the multi-turn coil is continuously wound around the magnetic film. The TMS device also includes a magnet that is positioned in the region within a boundary of the magnetic film, with the magnet generating a magnetic flux. The TMS device also includes a current source coupled to the multi-turn coil. The current source is configured to deliver a current to the multi-turn coil, to vary a permeability of the magnetic film and a density of the magnetic flux extending outside the region of the magnetic flux shutter during operation.

The invention discloses a flexible magnetic tactile sensing device based on a microstructure elastic layer, a three-dimensional force measuring device and a measuring method.The flexible magnetic tactile sensing device comprises a flexible magnetic film, the microstructure elastic layer, a Hall sensor, a PCB and a bottom shell, the Hall sensor is installed on the PCB, and the flexible magnetic film, the microstructure elastic layer, the PCB and the bottom shell are sequentially stacked from top to bottom; the microstructure elastic layer is of a non-planar structure, when the flexible magnetic film deforms due to stress, deformation of the flexible magnetic film is transmitted to the microstructure elastic layer, the change of the three-axis magnetic field intensity is measured through the Hall sensor and uploaded to a PC terminal for data processing, and three-dimensional force measurement is achieved. Three-dimensional force measurement can be achieved, the flexible magnetic film can generate local deformation in the normal direction when normal force is applied, the flexible magnetic film can generate tangential displacement when tangential force is applied, and application scenes suitable for different microstructure elastic layers are provided according to quantitative analysis results.

The invention discloses a self-decoupling three-dimensional force multi-mode sensing device, system and method based on radial magnetization, the device comprises a flexible magnetic film with radial magnetization, a microstructure layer, an optical waveguide layer, a shell, a Hall element, a PCB, a common camera and an infrared camera, the flexible magnetic film, the microstructure layer, the optical waveguide layer and the shell are stacked in sequence from top to bottom, and the Hall element is arranged in the shell. The PCB, the common camera and the infrared camera are all located on the bottom face of the shell, and the Hall element is installed on the PCB. The system comprises a self-decoupling three-dimensional force multi-mode sensing device and a signal processing device, and the signal processing device can realize three-dimensional force decoupling, infrared distance sensing and force application position measurement according to data of a PCB, a common camera and an infrared camera. According to the invention, the resolution is high, three-dimensional force decoupling can be realized, and multi-modal sensing can be realized.

The invention discloses a preparation method and application of a high-quality single primitive cell thickness chromium-antimony magnetic film, and the method comprises the steps: placing a strontium titanate substrate in a cavity of molecular beam epitaxial growth equipment, and carrying out the degassing and high-temperature annealing of the strontium titanate substrate under an ultra-vacuum condition until regular steps appear on the surface of the strontium titanate substrate; and with a chromium source and an antimony source as evaporation sources, growing the chromium-antimony magnetic thin film on the pretreated substrate by adopting a molecular beam epitaxy growth technology. The thin film prepared by the method has extremely remarkable magnetic anisotropy, the easy magnetization axis of the thin film is in the out-of-plane direction, and the magnetization intensity difference in the in-plane direction and the out-of-plane direction is obvious; in addition, the thin film has ferromagnetism, and the coercive field is gradually reduced along with temperature rise; in addition, the film also has stable magnetic properties, and shows the characteristic that the Curie temperature is higher than room temperature. And meanwhile, the preparation method has the advantages of accurately controlling the layer number of the thin film and realizing high-quality growth, and an ideal magnetic thin film material is provided for development of a new generation of semiconductor devices.

The invention provides a large-area split type flexible magnetic tactile sensor with a sensing function, and the sensor employs a plurality of flexible square magnetic sheets which are magnetized in the thickness direction, and the polarities of the flexible square magnetic sheets are alternately arranged in a checkerboard array mode in which the polarities of the magnetic fields of the adjacent flexible square magnetic sheets are opposite, so as to simulate a flexible magnetic film which is magnetized in a folded manner. The magnetic flux density of a contact force acquisition area is enhanced, a U-net algorithm is adopted to carry out field intensity-force relation fitting on the divided acquisition area, and a contact force cloud picture is generated, so that a Hall sensor and a flexible magnetic film can keep a large distance to carry out split type large-area contact force sensing, and lossless split type installation is realized; and compared with simple magnetic field modes such as unidirectional magnetization, the touch sensor has higher sensitivity. According to the size of a required contact force measuring surface, more flexible magnetic touch sensor arrays are arranged, a contact force cloud picture is drawn together through a plurality of units, and the flexible magnetic touch sensor array has application potential in the fields of bionic robots, flexible electronics, medical treatment and the like.

The invention relates to a soft mesh magnetic sensor for tactile and non-tactile perception. The sensor comprises a neodymium iron boron-organic silicon elastomer magnetic film, an aluminum foil, a PDMS elastomer, a TMR element and a printed circuit board, wherein the TMR element is welded on the printed circuit board, and the PDMS elastomer coats the TMR element and covers the PCB; the PDMS elastomer is covered with an aluminum foil, and a neodymium iron boron-organic silicon elastomer magnetic film is arranged on the aluminum foil; the PDMS elastomer is of a sandwich structure and is composed of an upper thin film, a lower thin film and a middle small cylinder array. The lower film is provided with a strip-shaped groove which is used for wrapping the TMR element. The soft grid magnetic sensor disclosed by the invention has the advantages of high sensitivity, high flexibility and strong multi-mode sensing capability.

The invention provides a preparation method of an HDMI (High Definition Multimedia Interface) high-performance common-mode suppressor made of a nanocrystalline material, relates to the technical field of electronic component preparation, and aims to meet the harsh requirement of HDMI high-frequency high-speed signals on common-mode noise suppression, the method comprises the following steps: constructing a multi-layer heterogeneous magnetic film with a gradient interface on a microstructured substrate by utilizing multi-target magnetron sputtering; a selective energy field assisted annealing technology is adopted to realize precise nanocrystallization and magnetic anisotropy regulation and control of the magnetic film; and a high-precision three-dimensional coil structure is integrated by combining a micromachining process. The prepared common-mode suppressor is small in size and high in integration level, shows excellent common-mode suppression efficiency, wide working bandwidth and excellent signal integrity in a high-frequency band, has high reliability, and is suitable for a new generation of HDMI (High-Definition Multimedia Interface).

The invention discloses a colored magnetic particle preparation method, a colored magnetic particle, a magnetic microcapsule and a magnetic film, and relates to the technical field of magnetic particle preparation. According to the preparation method, ferric salt and an alkaline substance are adopted, a ferroferric oxide precursor precipitation solution is generated through a coprecipitation method, surface modification is conducted through oleic acid, the dispersity and stability of particles in an organic system are enhanced, a solvent is adopted for washing and drying, and the purity and chemical stability of the particles are further improved; subsequently, mixing the modified nano ferroferric oxide, a dye, a high polymer and a functional additive to obtain the colored magnetic particle. The method has the advantages that the preparation process is simple, and the prepared colored magnetic particles are excellent in dispersity, stability and functionality.

The invention relates to the technical field of processing methods of optoelectronic materials, and mainly relates to a grinding and polishing process of a magnetic thin film epitaxial substrate material-calcium magnesium zirconium doped gadolinium gallium garnet (Ca, Mg, Zr: GGG, hereinafter abbreviated as SGGG) single crystal substrate. Comprising the key steps of disc loading, thinning and leveling, mechanical grinding and polishing, chemical mechanical polishing (CMP) and the like, as shown in figure 1. The invention also relates to a special binder, a grinding liquid and a polishing liquid in the SGGG substrate processing process, and the ultra-smooth (the roughness is less than or equal to 0.5 nm) and ultra-flat (the flatness is less than or equal to 5 [mu] m) SGGG single crystal substrate can be obtained through the technological process, the corresponding grinding liquid and the corresponding chemical polishing liquid, so that the epitaxial growth requirement of a YIG or RIG magnetic film is met.

The invention discloses a flexible multi-dimensional force sensor based on centripetal gradient magnetic field design and a preparation method thereof, and belongs to the field of electronic devices. A flexible multi-dimensional force sensor sequentially comprises, from top to bottom, a protection layer comprising a flexible substrate material having a force sensitive characteristic; a cross-shaped groove is formed in the bottom face of the magnetic film layer, the edge of the groove is in an arc shape, and a magnetic field with gradient magnetic flux can be formed; a buffer layer including a strained material having a stepped shape; and the transmission layer comprises an electromagnetic effect chip with a triaxial magnetic field sensing capability and a reading circuit of the electromagnetic effect chip. Compared with the prior art, the sensor provided by the invention realizes natural decoupling from the magnetic field design, and has decoupling capability on three axes. The gradient design enables the sensor to have different response slopes at different stress stages when the sensor is stressed, the force measurement range of the device is greatly improved, and the sensing sensitivity and the sensing range on three axes are the same.

The invention provides a resin composition, a magnetic film and application thereof. The resin composition comprises the following components: (A) magnetic filler, (B) epoxy resin, (C) a curing agent, (D) a flexibilizer and (E) polyester polyol, the number average molecular weight of the (E) polyester polyol is 2000 to 3000. According to the resin composition provided by the invention, through screening and synergistic compounding of specific components, the resin composition has relatively high magnetic conductivity and relatively low magnetic loss under high frequency after being cured, and meanwhile, the binding force with a copper layer is relatively high.

The application discloses a flexible multi-dimensional force sensor based on a centripetal gradient magnetic field design and a preparation method thereof, and belongs to the field of electronic devices. The flexible multi-dimensional force sensor comprises, from top to bottom, a protective layer, a magnetic film layer, a buffer layer and a transmission layer. The protective layer comprises a flexible base material with force-sensitive characteristics. The magnetic film layer is provided with a cross-shaped groove on the bottom surface, and the edges of the groove are arc-shaped, so that a magnetic field with a gradient magnetic flux can be formed. The buffer layer comprises a strain material with a stepped shape. The transmission layer comprises an electromagnetic effect chip with three-axis magnetic field sensing capability and a readout circuit thereof. Compared with the prior art, the sensor of the application realizes natural decoupling from the magnetic field design, and has decoupling capability on three axes. The gradient design of the application enables the sensor to have different response slopes at different stress stages when subjected to stress, greatly improves the force measurement range of the device, and the sensing sensitivity and range on the three axes are the same.

The invention relates to a magnetic sheet gluing, press-fitting and curing device and a machining method. The magnetic sheet gluing, press-fitting and curing device comprises a machining table, and a magnetic sheet feeding assembly, a product transferring belt and a mechanical arm are arranged on the machining table; the magnetic sheet feeding assembly comprises a vibration disc, a sorting channel, a material receiving groove and a first visual detection unit. An overturning unit is arranged on one side of the material receiving groove, and a material stirring unit is arranged on the other side of the material receiving groove; the overturning unit comprises an overturning head and a driving unit, the overturning head is in a transverse cylinder shape, a transverse material passing channel is formed in the middle of the end face of the overturning head, the material receiving groove is provided with an open groove matched with the overturning head, and the open groove divides the material receiving groove into a left groove body and a right groove body; when the material passing channel is in a horizontal state, the material passing channel and the two groove bodies are combined to form a material moving channel; an elastic pressing and holding piece for pressing and holding the magnetic sheet is arranged in the material passing channel; by means of the magnetic sheet pressing and fixing device, full-automatic feeding, distributing, turning over, gluing, pressing, detecting and fixing operation of magnetic sheets can be completed, the automation degree is high, manual intervention is not needed, the machining efficiency is high, and the product consistency is good.

The invention discloses a visual tactile sensor based on a magnetic imaging principle. The visual tactile sensor comprises a shell, an image acquisition module, a magnetic pole display film, an elastic body and a magnetic film, the magnetic pole display film, the elastic body and the magnetic thin film are arranged in the shell from top to bottom, and the image acquisition module is located above the magnetic pole display film and used for acquiring an image of the magnetic pole display film; when the sensor is used for pressure sensing, the position with the maximum gray level variation of the magnetic pole display film image is the pressure acting position, and the pressure is equal to the result that the gray level variation of the magnetic pole display film image is divided by the magneto-optical conversion coefficient of the magnetic pole display film and the product thereof. The magnetic induction intensity in the center range of the surface of the magnetic film, the initial distance between the magnetic film and the magnetic pole display film and the equivalent elastic coefficient of the magnetic film and the elastic body are related. The sensor converts a mechanical signal into a magnetic field signal and then converts the magnetic field signal into an optical image, high-sensitivity sensing of tiny pressure is achieved, and meanwhile the sensor has the higher signal-to-noise ratio, stability and anti-interference capacity.

The invention relates to the technical field of microcapsules, provides a magnetic microcapsule capable of preventing particle sedimentation, a preparation method of the magnetic microcapsule and a magnetic film, and aims to solve the problems of low writing smoothness and poor trace durability due to particle sedimentation and aggregation in the prior art. The magnetic microcapsule comprises a wall material and a core material, the wall material is a mixture comprising an anionic polymer and a cationic polymer, and the core material is a mixture comprising magnetic particles, non-magnetic particles, an oily solvent and a suspension stabilizer; the suspension stabilizer comprises any one or more of phthalic ester, polyamide wax, polysiloxane, sorbitan oleate, sorbitan monostearate, silicon dioxide, magnesium aluminum silicate and magnesium lithium silicate; according to the invention, magnetic particles and non-magnetic particles can be prevented from settling and gathering, and writing fluency and trace durability are ensured.

The invention discloses a spherical magnetic gear applying a magnetism gathering type magnetism adjusting device. The spherical magnetic gear comprises an in-ball magnetic rotor, the spherical magnetism adjusting device and an out-ball magnetic rotor which are sequentially nested from inside to outside, the spherical outer magnetic rotor comprises an outer rotor spherical shell yoke and an outer rotor permanent magnet, and the outer rotor permanent magnet is mounted on the inner surface of the outer rotor spherical shell yoke in a facing manner; the spherical inner magnetic rotor comprises an inner rotor spherical shell yoke and an inner rotor permanent magnet, and the inner rotor permanent magnet is mounted on the outer surface of the inner rotor spherical shell yoke in a facing manner; the magnetic transmission between the ball outer magnetic rotor and the ball inner magnetic rotor is realized through the inner rotor permanent magnet and the outer rotor permanent magnet which are oppositely arranged; the spherical magnetic adjusting device is located between the spherical inner magnetic rotor and the spherical outer magnetic rotor and comprises a plurality of side sine spherical belt type magnetic adjusting pole pieces and a magnetic adjusting base, one ends of the side sine spherical belt type magnetic adjusting pole pieces are connected with the magnetic adjusting base, and all the side sine spherical belt type magnetic adjusting pole pieces are arranged along the same spherical surface and can conduct torque transmission in multiple angles. And the device adapts to various transmission scenes.

The invention discloses a nano low-pass filter based on a skyrmion spring oscillator, which is characterized in that an antiferromagnetic coupled MnSi magnetic film structure is prepared, spin transfer torque is utilized to drive skyrmion to move, and a stable oscillation mode is formed through film boundary reflection; by changing the length Lx of the thin film and combining with an accurate mathematical formula, the oscillation frequency of the skyrmion is dynamically regulated and controlled, and high-precision adjustment of the cut-off frequency is achieved. Skyrmion oscillation shows an obvious high-frequency attenuation characteristic when an input signal is higher than a cut-off frequency, and an out-of-band signal is quickly cut off, so that out-of-band leakage is remarkably reduced, and the quality of a filtered signal is improved. The magneto-resistance effect is adopted to read oscillation response, a signal output structure is simplified, system power consumption is reduced, meanwhile, the anti-ferromagnetic coupling structure effectively suppresses spin Hall effect interference, and high stability of system operation is ensured.

The invention discloses intelligent tongue muscle pressure detection equipment, and relates to the technical field of tongue muscle pressure detection. Comprising an array type sensing assembly, and the array type sensing assembly comprises an array type Hall sensor, a middle elastic body and a magnetic film which are sequentially connected from bottom to top; the array type Hall sensor comprises a substrate layer, a plurality of graphene active parts are uniformly arranged on the substrate layer in an array mode, and metal electrodes are arranged on the peripheral sides of the graphene active parts. The device further comprises a handheld assembly, and the handheld assembly is connected with the array type sensing assembly. The array type sensing assembly is integrally soft and can fully combine with the deformation characteristic of human skin, and the multiple graphene active parts are arranged in an array and matched with the vertical periodic magnetization magnetic film, so that the force resolution, the sensitivity, the linearity, the hysteresis and the like are greatly improved; and a basis is provided for subsequent clinical experiments such as tongue muscle pressure test and marketization application.

The invention discloses a visual tactile sensor, an electronic skin and a robot, relates to the field of sensors, and is used for improving the comprehensiveness and sensitivity of stress detection. The sensor comprises a magnetic film covering the top surface and the side surface, and the magnetic film is prepared by mixing magnetic powder and silicone rubber; the support supports the magnetic thin film, a magnetic display card and a light source are arranged in the support, the visual touch collector collects magnetic induction data and development data of stress of the magnetic thin film, and then the multi-mode pressure detection model analyzes the stress position and / or the stress size. The stress detection sensitivity is high, comprehensive detection of the top face and the side faces can be achieved, and the detection precision is high.

The invention belongs to the technical field of low-noise magnetic shielding, and particularly relates to a flexible high-temperature-resistant magnetic shielding film and a preparation method thereof.The preparation method comprises the steps that a PI double-sided tape is attached to one side of a glass slide, and a PTFE / PDMS film is attached to one side of the glass slide to serve as a substrate sprayed by a silver nanometer bundle net; preparing a silver nanowire solution, and spraying the silver nanowire solution on the PTFE / PDMS film by using a spray gun to obtain a silver nano bundle net; spin-coating, curing and transferring the silver nano bundle net to obtain a flexible substrate of the cured silver nano bundle net; according to the flexible high-temperature-resistant magnetic shielding thin film and the preparation method thereof, the characteristic that the silver nanometer bundle net has the electromagnetic shielding performance is utilized, soft magnetic thin films are sputtered on the two sides of the silver nanometer bundle net, the shielding effectiveness of a traditional single-layer shielding thin film is further improved, and the flexible high-temperature-resistant magnetic shielding thin film is obtained. The obtained thin film is light in weight and meets the flexible application requirement of the magnetic shielding thin film, the application space is complex and changeable, and the flexible shielding thin film is light in weight, good in flexibility and excellent in shielding performance.

The invention relates to a high-toughness anti-crack magnetic decorative film and a preparation method thereof. The decorative film is prepared from the following raw materials in parts by weight: 40 to 60 parts of poly (dihydrothiophene-vinyl ether) copolymer, 10 to 25 parts of shell layer self-assembly modified Fe3O4 nanosheets, 5 to 15 parts of polyether ester block elastomer, 0.5 to 2 parts of sodium dodecyl benzene sulfonate, 0.5 to 1.5 parts of fluorosilane coupling agent, 0.1 to 1.0 part of 2-hydroxybenzotriazole ultraviolet absorbent, 3 to 6 parts of bisphenol A type epoxy curing agent and 0.05 to 0.5 part of imidazole catalyst. The flexible copolymer is synthesized through copolymerization of dihydrothiophene and vinyl ether, the modified Fe3O4 nanosheets form a Fe3O4 structure through coprecipitation of ferric chloride and ferrous chloride and regulation and control of ammonia water, and shell self-assembly coating is carried out through tetraethoxysilane and a block micromolecule interface agent. The material has excellent tensile strength, elongation at break, magnetic adsorption force and cycling stability, and is suitable for the application fields of flexible magnetic films and high-adhesion decorations.

The invention provides a magnetic resin composition, a magnetic film and application thereof. The magnetic resin composition comprises (A) a magnetic filler, (B) epoxy resin, (C) a curing agent and (D) a flexibilizer, the magnetic filler (A) comprises carbonyl iron powder (A1), FeSiCr alloy (A2) and iron-based nanocrystals (A3); based on the total mass of the magnetic resin composition as 100%, the content of the (A) magnetic filler is 85% or more; based on 100% of the total mass of the magnetic filler (A), the content of the carbonyl iron powder (A1) is 55%-65%, the content of the FeSiCr alloy (A2) is 15%-25%, and the content of the iron-based nanocrystalline (A3) is 15%-25%. According to the magnetic resin composition and the preparation method thereof, specific types of magnetic fillers are introduced and compounded according to a specific content, so that the magnetic resin composition has relatively high magnetic conductivity and relatively low magnetic loss after being cured, and meanwhile, the binding force with a copper layer is relatively high.

The invention provides a tactile sensor and a calibration method of the tactile sensor, and belongs to the technical field of sensors, the tactile sensor comprises a magnetic sensing layer, a pressure sensing layer and a flexible stress layer which are stacked in sequence; a magnetic film made of a magnetic material is embedded in the flexible stress layer, and after the flexible stress layer is subjected to three-dimensional force, the position of the magnetic film is changed; the pressure sensing layer is used for measuring a normal force of a three-dimensional force; and the magnetic sensing layer is used for detecting and acquiring magnetic field data of the magnetic film at different positions before and after the magnetic film is stressed so as to solve a three-dimensional force. According to the touch sensor provided by the invention, after the flexible stress layer is stressed, the pressure is transmitted to the pressure sensing layer through deformation, so that normal force detection is realized; meanwhile, according to the magnetic field change of the magnetic sensor before and after the flexible stress layer is stressed, the displacement change of the magnetic film is calculated, and finally the three-dimensional force is generated through decoupling.

The invention discloses a method for reducing critical current density in SOT driving magnetization overturning, and relates to the technical field of spintronics, and the method comprises the following steps: building a structure model of a magnetic film which is of a double-layer structure, symmetrically arranging two defect areas on the magnetic layer along the x-axis direction, the physical parameter value of the defect area is smaller than that of the magnetic layer; the junction of the magnetic layer and the defect region is a domain wall; the structure model is subjected to micro-magnetic simulation, a magnetic domain and domain wall evolution process is obtained, the critical current density in SOT driving magnetization overturning is determined based on the evolution process, the critical current density is the minimum current density for driving domain wall movement, and the maximum current density is the minimum current density for driving domain wall movement. And the SOT effective field generated by the critical current density is the minimum SOT effective field required for unpinning the domain wall from the defect area. The method can be compatible with the existing micro-nano electronic process and material system.

The invention provides a netting material with adhesion prevention, self-cleaning and toughness, and belongs to the technical field of netting materials for breeding. The invention provides a netting material with anti-adhesion, self-cleaning and toughness. The netting material comprises an antibacterial polyethylene core layer, an ultrathin strong magnetic film and an epoxy resin layer, wherein the surface of the epoxy resin layer is provided with an H-SiO2 coated CIP silane microstructure; the antibacterial polyethylene core layer can release antibacterial substances for preventing marine bacteria or attached microorganisms, and the ultrathin strong magnetic film can slowly permeate the antibacterial substances to the outermost layer; the nano-iron particle-silane microstructure coated with hydrophobic modified silicon dioxide and constructed on the outer surface of the epoxy resin coating has high hydrophobicity and adhesion resistance, the self-cleaning antifouling effect is achieved, antibacterial molecules released by the antibacterial polyethylene core layer are further slowly permeated to the outside, and waste is avoided.

The invention discloses a wireless passive thin film type humidity sensor which comprises an LC resonance circuit, a first isolation thin film, a humidity sensitive thin film, a second isolation thin film, a magnetic thin film and a substrate thin film. The LC resonance circuit is composed of a metal coil, a substrate and an interdigital capacitor, and the metal coil and the interdigital capacitor are placed on the two sides of the substrate respectively and connected in series through through holes formed in the substrate to form the LC resonance circuit; the first isolation film is arranged between the LC resonance circuit and the humidity-sensitive film, the second isolation film is arranged between the humidity-sensitive film and the magnetic film, and the substrate film is arranged on the other side of the magnetic film. When the humidity of the external environment changes, the humidity-sensitive film expands or shrinks due to the change of the water content, so that the distance between the LC resonance circuit and the magnetic film is changed, the inductance is changed along with the change, the resonance frequency of the LC resonance circuit is changed, and wireless passive detection of the humidity is realized by measuring the resonance frequency.

The invention relates to a three-dimensional force-temperature dual-mode tactile sensor based on a magnetic thin film. The sensor comprises a graphene-silica gel elastomer, a thermocouple, a magnetic film, an elastomer strut, a wrapping body, a Z-axis TMR element and a flexible printed circuit board, wherein the three Z-axis TMR elements are distributed on the flexible printed circuit board in a right-angle shape; the wrapping body covers the flexible printed circuit board and wraps the Z-axis TMR element array therein; the five elastomer supporting columns are distributed on the wrapping body in a five-point plum blossom shape; the graphene-silica gel elastomer is fixed on the five elastomer supporting columns; a magnetic film and a thermocouple are wrapped in the graphene-silica gel elastomer, and the thermocouple is located on the magnetic film. The touch sensor has the advantages of being low in hysteresis, high in resolution, high in sensitivity, easy to decouple and multifunctional, and double information sensing of external three-dimensional force and temperature can be achieved at the same time.

The invention belongs to the technical field of magnetic field sensing, and discloses a silicon-based anisotropic magnetic film non-contact magnetic field sensing device which comprises an organic glass probe, a rotating table, a steering engine, a support, a solar panel, a rear-end waterproof box and a fixed base which are sequentially combined from top to bottom. Magnetic field components at different angles are obtained through the variable attitude angle scanning mechanism, so that the optimal sensing angle is selected, measurement errors caused by installation attitude deviation, structural tolerance and environmental disturbance can be effectively eliminated, the reliability and stability of the system in outdoor long-term operation are remarkably improved, and the reliability and stability of the system in outdoor long-term operation are improved. The magnetic field of the wire is sensed in a non-contact mode, the light-weight probe and the movable fixing support are matched, fixation can be directly carried out below the measured wire, the installation process is simple, convenient and rapid, and the device is very suitable for the rapid arrangement and temporary monitoring requirements of an electric power field.

The invention discloses a flexible polymer magnetic film paper folding local design method and a flexible force sensor, and the method comprises the steps: drawing a fold shape expected to be obtained by a flexible polymer magnetic film into a plane graph; a mold three-dimensional diagram is manufactured based on the planar graph, and 3d printing is carried out; preparing a solution of magnetic substance powder and a silica gel mixture PDMS, mixing a PDMS prepolymer and a curing agent according to a first preset proportion to obtain the silica gel mixture PDMS, then adding the magnetic substance powder and the silica gel mixture PDMS according to a second preset proportion, fully stirring, pouring the solution into one side of a mold, and carrying out mold pressing to obtain the magnetic composite material. The scraper blade scrapes the mold to uniformly distribute the magnetic material powder particles; placing the mold in a state of 80 DEG C for curing for 2 hours, after the mold is completely cured, slowly demolding from the edge to obtain a flexible polymer magnetic film with a crease, then folding the flexible polymer magnetic film, and placing the flexible polymer magnetic film in a magnetic field for magnetization to obtain a magnetic field related to a folding mode and a magnetization direction.

A magnetic thin film laminated structure includes a first layer structure and a second layer structure stacked on the first layer structure. The first layer structure includes an adhesive layer on a substance, the adhesive layer being made of a material having compressive stress, at least one pair of layers on the adhesive layer, each pair of the at least one pair of layers including a magnetic film layer and an isolation layer, and an additional magnetic film layer on the at least one pair of layers. The second layer structure includes another adhesive layer on the first layer structure, another at least one pair of layers on the another adhesive layer, each pair of the another at least one pair of layers including a magnetic film layer and an isolation layer, and another additional magnetic film layer on the another at least one pair of layers.