286 results about "Magnetostriction" patented technology

The invention belongs to the technical field of optical fiber sensors, and particularly relates to a distributed optical fiber magnetic sensor, a preparation method thereof and a distributed measurement system. The optical fiber comprises an optical fiber and a magnetic composite matrix, a magnetic field measurement grating and a temperature compensation grating are arranged on the optical fiber; the magnetic composite matrix is formed by curing a magnetic composite suspension coating the outer side of the magnetic field measurement grating, the magnetic composite matrix comprises cured resin and magnetostrictive material particles uniformly distributed in the cured resin, and the magnetostrictive material particles are arranged in the cured resin in a predetermined orientation manner, so that the space monitoring range is expanded, and the magnetostrictive material particles are uniformly distributed in the cured resin; multi-point parallel measurement is achieved, and the defect that single-point measurement is prone to being disturbed by a local magnetic field is overcome; the technical problems of high precision, low cost, difficulty in deployment and long-section measurement of a magnetic field measurement sensor in the prior art are solved.

The invention discloses a transformer abnormity identification method based on voiceprint feature analysis, and belongs to the field of power equipment state monitoring and intelligent diagnosis. The method comprises the following steps: firstly, analyzing an iron core acoustic mechanism based on a magnetostrictive effect, and establishing a three-dimensional model through finite element simulation to obtain vibration and sound field characteristics; in a complex substation environment, a hybrid noise reduction method combining density peak clustering and a CEEMDAN-wavelet threshold is provided, and the signal-to-noise ratio is effectively improved. Then extracting Mel-frequency cepstrum coefficients (MFCC) and spectrum features, and performing local linear embedding (LLE) dimension reduction to form a compact feature set; in the recognition stage, a convolutional neural network framework is designed, specifically, a spectrogram and an energy spectrum are modeled through a two-dimensional CNN, an MFCC tensor obtained after dimensionality reduction is modeled through a three-dimensional CNN, and accurate diagnosis of mechanical faults such as core looseness is achieved. The method has the advantages of being non-contact, anti-noise and high in recognition precision, and real-time diagnosis and early warning of mechanical abnormity of the transformer can be achieved under complex working conditions.

A magnetostrictive torque sensor for measuring torque that is applied to a rotating shaft having magnetostrictive characteristics, includes a flexible substrate having a plate-shaped base material made of a flexible dielectric material and a plurality of detection coils formed by conductor patterns on front and back sides of the base material, and a measurement unit that measures the torque by the change in inductance of the plurality of detection coils due to the change in magnetic permeability of the rotating shaft, wherein the plurality of detection coils includes a first detection coil comprising a first coil winding including a first inclined portion inclined to one side with respect to an axial direction of the rotating shaft, and a second detection coil comprising a second coil winding including a second inclined portion inclined to the other side with respect to the axial direction of the rotating shaft, wherein the flexible substrate includes parallel extending portions where the first coil winding and the second coil winding extend parallel to sandwich the substrate, and wherein a centerline of the first coil winding and a centerline of the second coil winding are misaligned in a direction perpendicular to their respective centerlines in the parallel extending portions.

An acoustically driven ferromagnetic resonance (ADFMR) device has a piezoelectric element comprised of piezoelectric material, first and second electrodes arranged in a vertical stack with the piezoelectric element to activate the piezoelectric element to generate an acoustic wave, a radio frequency voltage source electrically connected to the first electrode, a magnet comprised of a magnetostrictive material to receive the acoustic wave, the magnet being in the vertical stack with the first and second electrodes and the piezoelectric element, wherein the acoustic wave resonates at a ferromagnetic resonance of the magnetostrictive material, and a readout circuit to detect a change in the acoustic wave by detecting g one of an output voltage amplitude, a change in impedance or a reflection of the acoustic wave in the magnet to measure an unknown magnetic field in which the ADFMR device resides and as experienced at the magnetostrictive element.

The invention discloses a high-temperature pipeline magnetostrictive guided wave sensor and a monitoring method, and relates to the field of ultrasonic nondestructive testing. According to the sensor, a wrinkled iron-cobalt alloy belt is used as a sensitive element, and the sensor is in dry coupling contact with a to-be-detected pipeline; the high-temperature-resistant static magnetic field coil is wound on the outer side of the aluminum pre-tightening ring in a solenoid mode, and a bias pulse excitation mode is adopted. Alternately winding the bottom end of the wrinkle structure of the wrinkle-type ferrocobalt alloy belt and the back surface of the belt material, controlling the wrinkle-type ferrocobalt alloy belt to excite a guided wave signal in a pulse section, and receiving the guided wave signal in a bias section; the dynamic magnetic field and the static magnetic field generated by the two groups of coils are perpendicular in direction, and torsional mode guided waves are generated in the high-temperature pipeline based on the reverse Weidmann effect. The sensor is easy to install and stable in performance, the whole structure is resistant to high temperature for a long time, and the engineering problem of high-temperature failure is solved. The method provided by the invention comprises the steps of optimizing pre-tightening force, pulse voltage and bias current parameters, so that the transduction efficiency is improved, and the capability of detecting new defects of the pipeline in high-temperature and variable-temperature states is enhanced.

The utility model relates to the field of detection devices, in particular to a magnetostriction liquid level meter detection device which comprises a fixing plate, a detection assembly and a supporting assembly. A supporting assembly used for supporting and damping to prevent the magnetostriction liquid level meter from being damaged is installed on the outer side of the fixing plate, and a detection assembly used for detecting liquid is installed in the fixing plate. The supporting assembly comprises a mounting base, a fixing block, a connecting block, a telescopic column, a damping spring, an electric push rod, a supporting plate, a suction cup, a flange, an electric cabinet, a mounting cavity, a threaded sleeve, a fixing nut, a quick connector, a connecting column and a damping pad, the mounting base used for supporting the magnetostriction liquid level meter is arranged at the center of the upper end of the fixing plate, and the flange is arranged at the center of the upper end of the mounting base; according to the magnetostriction liquid level meter detection device, displacement caused by external vibration or impact is prevented through the damping structure, the magnetostriction liquid level meter detection device can be kept horizontal all the time through the electric push rod, and the device can be installed and detached more rapidly through various rapid installation structures.

The invention provides an aircraft detection method and system based on eddy current induced optical fiber micro-vibration, and relates to the technical field of aircraft detection.The aircraft detection method comprises the steps that alternating magnetic field data of aircraft eddy current is collected, and time and frequency dimension change features are analyzed and extracted to serve as a magnetic field feature benchmark; the magnetostrictive sensing rod of the magnetoelectric sensing unit is combined with the fiber bragg grating, and magnetic field change generated by the eddy current magnetic field effect of the aircraft is converted into a voltage signal. And decomposing the time-frequency characteristics of the voltage signals according to the magnetic field characteristic reference, generating electric signal components of different frequency band magnetic field energy evolved along with time, screening characteristic magnetic field change components, and matching the characteristic magnetic field change components with a standard magnetic field mode in a preset database to identify types. Motion characteristic parameters are selected according to identification types, motion states are analyzed and flight trajectories are predicted in combination with time sequence characteristics, graded early warning signals are generated according to the position relation between the trajectories and preset safety areas, and detection and safety early warning of the aircraft can be achieved.

A measuring system for measuring a flow parameter of a fluid flowing in a pipeline includes: a pipe; a bluff body arranged in the pipe and designed to generate vortices in the fluid flowing past the bluff body; a vortex sensor arranged downstream of the bluff body, the vortex sensor designed to produce mechanical vibrations upon being excited by the flowing fluid and to provide a vortex sensor signal and having a magnetostrictive material; a magnetic field detection unit designed to measure a change in a magnetic field resulting from mechanical forces acting on the magnetostrictive material and designed to provide a magnetic field detection signal; and transmitter electronics for analyzing the vortex sensor signal and for analyzing a functionality and / or a plausibility statement regarding the vortex sensor signal provided by the vortex sensor based on the magnetic field detection signal.

The invention provides a substation settlement monitoring method and system, and relates to the technical field of settlement monitoring, and the method comprises the steps: deploying a bionic root system mesh array sensor network which comprises a plurality of monitoring nodes; collecting current phase data of a transformer substation bus in real time to calculate magnetic field interference, and performing inverse compensation on an original displacement signal of the magnetostrictive displacement sensor; carrying out vibration monitoring through a triaxial accelerometer, and carrying out data weight adjustment on a plurality of monitoring nodes; and performing settlement prediction on the transformer substation according to the displacement compensation data in combination with the weight parameters of the plurality of nodes, performing backtracking calibration on the bionic root system mesh array sensor network, and performing closed-loop monitoring on the settlement of the transformer substation according to a calibration result. The technical problem of inaccurate settlement monitoring caused by interference in a high-intensity magnetic field environment of the transformer substation in the prior art is solved, and accurate prediction and closed-loop monitoring of settlement of the transformer substation are realized by deploying a plurality of intelligent sensors and performing magnetic field interference compensation.

The invention discloses a high-sensitivity optical fiber magnetic field sensor based on extrinsic F-P interference, and the sensor employs Terfenol-D as a sensitive element, employs a permanent magnet to provide a bias magnetic field, and improves the conversion efficiency of a magnetostrictive rod. A high-precision F-P cavity is formed by accurately aligning the end face of the single-mode optical fiber with the surface of the permanent magnet. Experimental results show that the highest sensitivity of the sensor within the range of 0-150 [mu] T reaches 676 nm / mT, and the corresponding magnetic field resolution is 147 nT. The integrated reference FBG is used for monitoring temperature changes, and the problem of temperature cross sensitivity is effectively solved. The design based on a first-generation EFPI sensor is further optimized, an improved sensor with adjustable magnetic bias is provided, and the linearity is improved to 99.2%. The sensitivity of the improved sensor in the same magnetic field range reaches 826 nm / mT, the magnetic field resolution is 121 nT, and the improved sensor shows good linear characteristics and temperature stability.

The invention discloses an oil cylinder sealing optimization system based on electromagnetic induction regulation and control, and the system comprises an electromagnetic induction unit, a coil of which generates an alternating magnetic field in a sealing area, and acts on a magnetic sensitive composite material sealing element; the sensor unit monitors the leakage rate, the temperature and the pressure in real time; the control unit executes a self-adaptive PID control algorithm, dynamically adjusts PID parameters according to sensor data, and outputs a PWM signal to control the electromagnetic induction unit so as to optimize the sealing performance in real time; the controllable alternating magnetic field is applied to the magnetic-sensitive sealing element through the electromagnetic induction unit, the elastic modulus and the contact pressure of the magnetic-sensitive sealing element are regulated in real time through the magnetocaloric or magnetostrictive effect, meanwhile, key parameters such as leakage, temperature and pressure are monitored in real time in combination with a sensor, and the sealing state is rapidly responded and dynamically adjusted through a self-adaptive PID algorithm in the control unit. Oil cylinder sealing can be self-optimized according to working condition changes, and the problem that traditional static sealing cannot adapt to dynamic working conditions is solved.

The invention discloses a magnetoelectric composite material based on prestress regulation and control and a preparation method, and relates to the technical field of composite materials. The method comprises the following steps: plating electrodes on the upper and lower surfaces of a piezoelectric material sheet; bonding the piezoelectric material sheet plated with the electrode with the magnetostrictive material sheet; curing the bonded piezoelectric material sheet and magnetostrictive material under the action of a direct-current bias magnetic field to form a magnetoelectric composite material; wherein the piezoelectric material sheet is made of a single-crystal or polycrystalline ceramic material, and the magnetostrictive material sheet is made of an alloy or oxide with a magnetostrictive effect; according to the invention, the flaky piezoelectric material and the magnetostrictive material are bonded and compounded, and a direct-current bias magnetic field is applied in the adhesive curing process to optimize the residual stress state in the material, so that the magnetoelectric composite material formed by final curing has a higher magnetoelectric coupling coefficient; the anti-interference performance is higher; and the response stability in a complex environment is improved.

To easily and securely manufacture a magnetostrictive member with increased parallel magnetostriction and reduced variation in parallel magnetostriction between members.SOLUTION: A manufacturing method for a magnetostrictive member is for manufacturing a magnetostrictive member composed of a crystal of an iron-based alloy having magnetostrictive properties and having a shape having a longitudinal direction and a shortitudinal direction. The manufacturing method for a magnetostrictive member includes measuring the parallel and perpendicular magnetostrictive quantities on one surface of the crystal, and cutting the crystal such that the direction in which the measured parallel and perpendicular magnetostrictive quantities become larger is the longitudinal direction of the magnetostrictive member.SELECTED DRAWING: Figure 1

This invention relates to an Fe-Ni based alloy with enhanced soft magnetic properties utilizing a medium-range ordered structure and its preparation method. The chemical formula of the alloy is: Fe bal Ni a Cr y Si b B c M d Cu e X f Its microstructure is as follows: the alloy matrix is ​​mainly amorphous, with dispersed atomic-scale medium-range ordered (MRO) clusters comprising 15%–40% by volume. The size of these clusters is controlled between 1 nm and 5 nm, and no long-range crystalline phases larger than 10 nm are formed. By introducing Ni element to couple magnetic moments with Fe to reduce the saturation magnetostriction coefficient, and by using a low-temperature relaxation annealing process to control the pre-precipitation behavior of Cu element, a high-density MRO-reinforced framework is established in the amorphous matrix. This material possesses high saturation magnetic induction, low coercivity, and excellent high-frequency permeability, which can improve the problems of large magnetostriction coefficients and high high-frequency noise in existing high-Bs iron-based nanocrystalline alloys. It is particularly suitable for high-frequency high-power transformers and wireless charging magnetic shielding modules.

A magnetoelectric (“ME”) device is disclosed. In one aspect, the ME device includes a first piezoelectric substrate portion and a second piezoelectric substrate portion; a magnetostrictive body with a magnetization oriented in a first direction, the magnetostrictive body arranged on and extending between the first and second portions; a pair of input electrodes arranged on the first portion; and a pair of output electrodes arranged on the second portion. The input electrodes are configured to induce a fringing electric field extending between the input electrodes via the first portion, thereby causing a deformation of the first portion which in turn causes a deformation of the magnetostrictive body such that the magnetization thereof is re-oriented to a second direction due to a reverse magnetostriction. An output voltage is induced between the output electrodes by a deformation of the second portion caused by the re-orientation of the magnetization of the magnetostrictive body.

The invention provides a sensing system integrating torque detection and angle detection, and the system comprises a strain body which is used for generating deformation when bearing a torque; the strain gauge is fixed on the strain body, the strain gauge is made of an inverse magnetostrictive material, the magnetic conductivity of the strain gauge changes along with the strain borne by the strain gauge, and the strain gauge is provided with a preset patterned structure; the angle coding structure is arranged on the strain body; the circuit board is provided with at least one planar coil and an angle sensing assembly; wherein the planar coil corresponds to the patterned structure in space and is used for detecting the magnetic conductivity change of the strain gauge so as to obtain torque information; the angle sensing assembly corresponds to the angle coding structure in space and is used for acquiring angle information of the strain body.

The application provides an active damping method and system for a reactor based on a magnetostrictive effect positive compensation, and belongs to the technical field of damping of power equipment; the method comprises the following steps: determining optimal compensation compression stress through analysis of a vibration source characteristic and mapping of a material characteristic; adopting a preset core compression structure, applying the optimal compensation compression stress in a core manufacturing and assembling stage, and maintaining the optimal compensation compression stress through a pre-tightening element; and performing vibration testing on the reactor after the optimal compensation compression stress is applied, and iteratively fine-tuning until a vibration suppression rate meets a preset target. The application can actively utilize and reshape the compensation mechanism of the magnetostrictive effect, so that the deformation generated by the magnetostrictive effect and the deformation of the electromagnetic force are offset, and the overall vibration of the reactor is greatly reduced from the source.

Magnetostrictive displacement sensor, characterized in that it comprises a measuring head (1) and a measuring rod (2) which are connected to each other, and a slider (3) which is arranged on the measuring rod (2) and can move along the longitudinal direction of the measuring rod (2);wherein the measuring head (1) comprises a housing (11), a sensitive element assembly (12), a signal processing element (13), a pulse element (14) and an end cap assembly (15), wherein the end cap assembly (15) is detachably arranged on one side of the housing (11) facing away from the measuring rod (2), wherein the end cap assembly (15) and the housing (11) together form a receiving cavity (11a), wherein the sensitive element assembly (12), the signal processing element (13) and the pulse element (14) are all arranged in the receiving cavity (11a), wherein the sensitive element assembly (12) is electrically connected to the signal processing element (13) and the pulse element (14), wherein a waveguide wire (127) is arranged inside the measuring rod (2), wherein one end of the waveguide wire (127) is connected to the sensitive element assembly (12) is connected;wherein the magnetostrictive displacement sensor (100) further comprises a holder (16) comprising a first surrounding plate (161) and a second surrounding plate (162), one of the first surrounding plate (161) and the second surrounding plate (162) being provided with an insertion part, while the other being provided with a fitting part, the insertion part snapping into the fitting part, the first surrounding plate (161) and the second surrounding plate (162) enclosing a limiting groove, with at least a portion of the structure of the sensitive element assembly (12) being limited in the limiting groove, and wherein the signal processing element (13) and the pulse element (14) are each arranged on two opposite sides of the sensitive element assembly (12), and wherein the signal processing element (13) and the pulse element (14) are each in buffered contact with the inner side wall of the housing.

The invention discloses a soot blowing pipeline wall thickness online monitoring method based on temperature self-adaption, and relates to the technical field of industrial pipeline nondestructive testing. The problems that in the prior art, a detection signal is unstable in a high-temperature environment, and the micro corrosion thinning recognition precision is insufficient can be at least partially solved. The method comprises the steps that the surface temperature of a pipeline is collected, and the force contribution ratio of Lorentz force to magnetostriction force is calculated; dynamically optimizing electromagnetic ultrasonic body wave excitation parameters according to the force contribution ratio; body waves are excited point by point in the axial direction of the pipeline, and echo signals are collected; extracting bottom wave features by using empirical mode decomposition and wavelet threshold combined noise reduction; calculating the wall thickness of each measuring point based on the temperature correction sound velocity; and generating a B-scan image and carrying out grading evaluation according to the percentage of the thinning amount. According to the method, the wall thickness is accurately measured under the high-temperature working condition, signal stability is ensured through temperature self-adaptive parameter optimization, the signal-to-noise ratio is remarkably improved through combined noise reduction, wall thickness distribution is visually presented through B scanning imaging, and reliable data support is provided for safe operation and maintenance of a pipeline.

The invention belongs to the field of sound transmission equipment, and particularly relates to bone conduction sound transmission equipment based on a magnetostrictive element, which comprises a shell, an accommodating cavity is formed in the top of the shell, and an element mounting groove is formed in the bottom surface of the accommodating cavity; a magnetostrictive element is arranged in the element mounting groove, the upper end and the lower end of the magnetostrictive element are connected with a first permanent magnet and a second permanent magnet respectively, and the outer side of the magnetostrictive element is sleeved with a hollow coil; a sound transmission rod is arranged above the first permanent magnet, and a noise reduction reset assembly used for resetting the sound transmission rod is arranged at an opening of the containing cavity. According to the design, the hollow coil is fixed in the mode that the element installation groove is matched with the coil limiting ring, an additional coil support is not needed, and therefore the overall weight of the device is reduced, the device can adapt to the high-frequency mechanical vibration requirement of bone conduction, the noise reduction reset assembly is arranged, vibration noise generated by the magnetostriction element is effectively blocked, and the service life of the device is prolonged. Noise transmission in the containing cavity is reduced, and the sound transmission quality effect is guaranteed.

The present invention proposes a method for manufacturing a TbDFe supermagnetic alloy based on stereolithography. The method first prepares a stereolithography slurry using a photosensitive resin as a matrix. A metal-organic chelating agent containing TbDFe supermagnetic alloy components is added to enhance the uniform distribution of the metal powder, ensuring printing accuracy and material stability. Next, degreasing is performed to remove the resin and chelating agent through heat treatment. The degreasing process is controlled by controlling the heating rate to avoid structural collapse. Decarburization is then performed in a low-oxygen atmosphere to improve the purity of the alloy and ensure structural integrity before sintering. A reduction treatment is then performed to improve structural stability and purity. Finally, high-temperature sintering is performed under the assistance of a magnetic field to optimize grain orientation and magnetic domain arrangement, thereby enhancing the magnetostrictive effect and force-to-magnetic energy conversion efficiency. This method combines stereolithography with magnetic field-assisted heat treatment, effectively avoiding the risk of structural damage during the printing of TbDFe supermagnetic alloy.

The invention relates to an oil-immersed transformer which is characterized in that a vibrating reed made of magnetostrictive materials is mounted on the inner wall of an oil tank, leakage magnetic field energy generated by a winding and an iron core during operation of the transformer is converted into high-frequency micro-vibration mechanical energy of the vibrating reed, and the vibration energy is rigidly transmitted to an external radiating fin through the wall of the oil tank; and a transformer oil boundary layer on the surface of the cooling fin is damaged, so that self-adaptive heat dissipation enhancement with zero external driving, zero additional energy consumption and no maintenance is realized.

Apparatus for near-field wireless energy transfer. A first layer provides or comprises a piezoelectric phase or a material with or adapted for electromechanical coupling; and a second layer provides or comprises a magnetostrictive phase or a material with or adapted for a magnetomechanical coupling. The second layer is mechanically and / or chemically coupled to the first layer to provide a composite structure.

The utility model relates to the field of magnetostrictive piezometric tubes, and particularly discloses a magnetostrictive piezometric tube water level measuring device which comprises a measuring device, the measuring device comprises a liquid level meter and a waveguide wire, a positioning mechanism is arranged below the liquid level meter and comprises two positioning chucks, a locking screw is installed on the side surface of the left positioning chuck, and a locking nut is installed on the side surface of the right positioning chuck. And a penetrating hole is formed in the position, corresponding to the locking screw, in the positioning chuck located on the right side, limiting sliding grooves are formed in the lower surfaces of the two positioning chucks, limiting clamping plates are installed in the limiting sliding grooves, and springs are installed at the positions, located in the limiting sliding grooves, of one sides of the limiting clamping plates. The two positioning chucks are integrally in butt joint at the tank opening position of a detection position, and the two limiting clamping plates are clamped on the outer side of a pipeline under the reset acting force of the spring, so that it can be guaranteed that a measuring device installed in the positioning mechanism is installed at the center position, and it can be guaranteed that a waveguide wire is straightened under the action of a guide cable balancing weight below the positioning mechanism.

The invention relates to the technical field of underground water level monitoring, and discloses a magnetostriction float type underground water level meter and an underground water level measuring method and device. Comprising a coiled pipe body, and the cross section of the coiled pipe body is provided with a central large circular hole and a plurality of small circular holes which are symmetrically distributed; a water inlet hole blocked by permeable stone is formed in the bottom of the pipe body capable of being coiled; the electronic bin is in sealed connection with the top of the pipe body capable of being coiled, the electronic bin is fixedly connected with the ground protection pipe through a tensile steel wire rope, and scale information is arranged on the surface of the tensile steel wire rope; the floater assembly is arranged in the central large circular hole and comprises a hollow floating body and a built-in permanent magnet; the waveguide sensing assembly is characterized in that a closed-loop measuring loop formed by a waveguide sensing wire and a cable is arranged in a small circular hole, and the closed-loop measuring loop generates a torsion wave signal through an excitation circuit in an electronic bin; the magnetostriction signal processing module is arranged in the electronic bin; and acquiring the extension length of the measured tensile steel wire rope, and calculating the underground water level according to the extension length and the relative displacement.

The utility model discloses a magnetically controlled reactor which comprises a first installation support, the upper surface of the first installation support is connected with a group of iron core yoke frames, the outer surface of each iron core yoke frame is sleeved with a coil, and the two ends of each coil are electrically connected with electrode plates. According to the device, through the arrangement of the first mounting bracket, the second mounting bracket, the iron core yoke frame, the coil, the electrode plate, the sound insulation cover and the sound absorption plate, noise generated by a magnetostriction phenomenon can be uniformly absorbed by utilizing the sound absorption plate made of a polyester fiber material, and the noise is blocked by utilizing the sound insulation shell, so that noise reduction protection of the magnetically controlled reactor is realized, and the service life of the magnetically controlled reactor is prolonged. According to the magnetically controlled reactor, the problem that noise generated during work of the magnetically controlled reactor causes interference to the environment is solved, the heat dissipation assembly, the heat dissipation fan, the dust cover and the heat dissipation air holes are arranged, the heat dissipation fan can be used for blowing air into the sound insulation shell and discharging heat, air blowing cooling of the magnetically controlled reactor is achieved, and the magnetically controlled reactor can be safely and effectively used conveniently.

The invention discloses a magnetostrictive sensing pressure gauge measuring range intelligent calibration method and system, and relates to the technical field of measuring range calibration, and the method comprises the steps: collecting a plurality of first elastic element sample sets of a first service life of a target pressure gauge model when the monitoring environment characteristics of the target pressure gauge model are not consistent with the standard, executing range boundary analysis through a magnetostrictive sensor to obtain a plurality of first range boundaries; configuring a first training data set by taking the plurality of first range boundaries as supervision and the plurality of first service lives as input; collecting a second elastic element sample set, and performing range boundary analysis through a magnetostrictive sensor to obtain a plurality of second range boundaries; training a first range boundary predictor by using machine learning; and performing neuron progressive increment training on the first range boundary predictor to generate a second range boundary predictor, and performing range intelligent calibration on the target pressure gauge. According to the invention, the technical problem of poor range calibration effect in the prior art is solved.

The application relates to the technical field of magnetic field monitoring, in particular to a single-point multi-azimuth magnetostrictive magnetic field change dynamic prediction device and a use method thereof, which comprises a probe, a probe rod connected with the probe, a magnetostrictive part arranged in the probe rod, a force receiving part arranged in the probe, one end of the magnetostrictive part penetrating into the probe and connected with the force receiving part, and a piezoelectric part arranged in the probe, wherein the piezoelectric part is provided with two groups along the thickness direction of the force receiving part, and the two groups of piezoelectric parts are arranged on the two sides of the force receiving part along the thickness direction of the force receiving part. The application utilizes the principle that the magnetostrictive part will be elongated or shortened when affected by a magnetic field to monitor the magnetic field intensity and direction, and the monitoring precision is relatively high; in addition, the magnetostrictive part is less affected by temperature, is suitable for measurement in relatively harsh environments such as high temperature, and has relatively strong anti-interference capability.