144 results about "Magnetic probe" patented technology

The invention provides a method and system for diagnosing high-frequency magnetic disturbance in a quasi-ring symmetrical star simulator, and relates to the technical field of star simulators, and the method comprises the steps: designing the three-dimensional size of a magnetic probe body in combination with a physical research target and a vacuum chamber space limiting condition, and preparing a magnetic probe entity adaptive to an experimental environment; designing a magnetic probe array space layout according to the triangular magnetic configuration characteristics of the CFQS star simulator to obtain a positioned magnetic probe array; a positioned magnetic probe array is utilized to construct a signal transmission link, and a calibration qualification system is formed; generating a multi-channel time domain voltage signal set according to a calibration qualified system; and performing frequency response correction on the multi-channel time domain voltage signal set in combination with a transfer function database, analyzing a disturbance mode structure and a propagation direction through time-frequency spectrum analysis and array phase difference, and finally outputting three-dimensional magnetic disturbance evolution characteristics. The three-dimensional high-frequency magnetic disturbance measuring device has the beneficial effects that the three-dimensional high-frequency magnetic disturbance measuring capability is realized, multi-channel high-fidelity signal acquisition can be realized, and the experimental data quality and the physical analysis capability are improved.

The invention provides a method for plasma bombardment energy distribution detection and life prediction of a silicon carbide part, and belongs to the technical field of semiconductor processing based on deep learning. The method comprises the following steps: firstly, arranging a magnetic probe array to obtain local electromagnetic parameters, and obtaining plasma luminescence characteristics by using optical imaging and spectrum acquisition equipment; preprocessing the acquired data to obtain multi-source fusion features; designing an energy distribution reconstruction framework based on a generative adversarial network, wherein a generator is used for deducing a three-dimensional energy distribution field of plasma; and inputting the three-dimensional energy distribution field time sequence characteristics into a bombardment dynamic characteristic modeling time sequence depth network, establishing a nonlinear mapping relation between energy distribution and material aging, further obtaining life prediction parameters, and finally obtaining the remaining service life of the silicon carbide part. According to the method, a complex degradation mechanism can be reflected more accurately, and the precision and robustness of life prediction are remarkably improved.

The invention relates to the field of dam deformation monitoring, and discloses a dam deformation monitoring device based on a settlement magnetic ring and an MEMS accelerometer, and the device comprises an inclinometer pipe which is buried in a dam body drill hole and is used for synchronously deforming along with a dam body; the flexible intelligent displacement meter is formed by connecting a plurality of single-section flexible displacement meters in series through flexible joints, an MEMS accelerometer and a microprocessor are arranged in a side wall slot of each single-section flexible displacement meter, and the MEMS accelerometer and the microprocessor are used for measuring the inclination angle of each section; the settlement magnetic ring synchronously moves along with the settlement of the dam body; the magnetic probe detects the elevation change of the settlement magnetic ring; and after the data acquisition equipment receives the measured data, the data processing center calculates the horizontal displacement and settlement of the dam body. According to the invention, the flexible displacement meter is combined with the settlement magnetic ring to obtain the three-dimensional coordinates of each single section, so that the horizontal displacement and settlement of the dam body are calculated, the deformation of the dam body is monitored under the condition that the flexible displacement meter is only vertically mounted, the limitation of an embedding mode is overcome, and the adaptability and practicability of monitoring are improved.

The invention provides a calibration system and method for a fluxgate current sensor, the system comprises a power supply module, a test tool module and a current clamp clamped on the input hole wall of the fluxgate current sensor, the power supply module is connected with the test tool module, and the test tool module is connected with the current clamp; the test tool module comprises a control circuit, a current source circuit, a multipath controller circuit and an interface circuit, the control circuit is respectively connected with the current source circuit and the multipath controller circuit, and the current source circuit is connected with the current clamp through a calibration interface in the interface circuit; and the multi-path controller circuit is used for being connected with a fluxgate current sensor through a sensor communication interface in the interface circuit. According to the invention, the problems of easy overload of power supply, high current source cost of large current and high precision and the like of the vehicle-mounted fluxgate current sensor in test calibration due to the characteristics (such as small internal resistance of a magnetic probe coil and large starting current) are solved.

Disclosed herein is an instrument and associated methods for a fully automated bench-top NULISA platform, comprising an X-Y-Z-gantry, a microtiter plate stage, an incubator, a quantitative PCR module, a decontamination cleaner for microtiter plates, a microtiter plate sealer, a magnetic probe and comb assembly for sample mixing and magnetic bead extraction, a storage unit for reagents and supplies, and a controller.

Disclosed herein is an instrument and associated methods for a fully automated bench-top NULISA platform, comprising an X-Y-Z-gantry, a microtiter plate stage, an incubator, a quantitative PCR module, a decontamination cleaner for microtiter plates, a microtiter plate sealer, a magnetic probe and comb assembly for sample mixing and magnetic bead extraction, a storage unit for reagents and supplies, and a controller.

This invention discloses a mechanical guide vane master controller, which utilizes a movable wedge-shaped trigger rod to trigger left and right limit switches at the same position, causing each limit switch to output a switching signal. The wedge-shaped trigger rod also moves a travel trigger plate, and magnetic probes at both ends of the travel trigger plate cooperate with corresponding travel sensors to trigger left and right travel sensors to output analog signals. This invention is used for monitoring the travel signals of turbine guide vanes, and can output redundant switching and analog signals, unaffected by weather, location, time, or unit operating conditions, thus offering higher reliability.

The invention discloses a nuclear magnetic probe relay mounting bracket assembly and a nuclear magnetic probe, and belongs to the technical field of oil exploration and development, the nuclear magnetic probe relay mounting bracket assembly comprises an electrical connection assembly, a sealing assembly and a frequency adjusting assembly, the electrical connection assembly comprises an upper joint, a lower joint and a transition rod, and the upper joint and the lower joint are respectively connected to two ends of the transition rod; the sealing assembly comprises a sealing plug body, a pressure-bearing sealing plug and a sealing plug contact pin, the sealing plug contact pin penetrates through and is connected to the middle of the sealing plug body in a sealing mode, the sealing plug contact pin is electrically connected with the lower connector, the pressure-bearing sealing plug is connected to the sealing plug body, and the sealing face of the pressure-bearing sealing plug protrudes out of the outer diameter side of the sealing plug body; the frequency adjusting assembly comprises an installation disc used for installing a relay, and the installation disc is connected to the side, close to the upper connector, of the sealing plug body. The sealing assembly is used for sealing, the frequency adjusting assembly is used for frequency adjusting, the sealing performance in the ultrahigh-pressure well hole environment can be improved, and the frequency adjusting precision is improved.

The invention relates to the technical field of defect detection, in particular to a robot magnetic detector constant magnetic field control system and method, and the system comprises a control circuit, a power supply circuit, a magnet yoke winding drive circuit, a magnet yoke winding current detection circuit, a magnet yoke winding temperature detection circuit, a magnetic field detection circuit and a switching signal input and output circuit. The robot magnetic detector constant magnetic field control system and method have the advantages that high-precision constant magnetic control is achieved, detection quality can be guaranteed, intelligent temperature protection can be achieved, equipment damage is prevented, anti-interference design is carried out, signal acquisition reliability can be improved, multi-state indication and remote control are achieved, operation efficiency can be improved, and the robot magnetic detector constant magnetic field control system and method are suitable for popularization and application. The whole system is compact in structure and reasonable in circuit layout, adapts to robot integration, and meets automatic detection requirements of special equipment in complex environments such as high altitude and closed environments.

A fluxgate current sensor and a current measurement method, wherein the fluxgate current sensor includes a magnetic probe and an excitation and detection circuit, and the magnetic probe includes an excitation iron core and an excitation coil, the excitation coil is connected to the excitation and detection circuit, the excitation and detection circuit is used to output alternating excitation voltages to the excitation coil, and the excitation coil is excited to generate alternating excitation currents and cause the excitation iron core to reach saturation alternately; the excitation and detection circuit is further configured to convert the excitation currents flowing through the excitation coil, into equivalent differences of two currents, so as to calculate average values of the excitation currents flowing through the excitation coil via differential equivalent currents, thereby calculating to-be-measured primary currents by the average values of the excitation currents.

The present invention relates to a precise detection test method for trace water in lunar soil under the coupling of equivalent vacuum and ultra-low temperature, belonging to the technical field of extraterrestrial celestial body sampling and detection. Aiming at the technical bottleneck that the existing lunar soil trace water detection technology on the earth is interfered by water vapor, the solution steps include: placing the lunar soil in the sample chamber inside the nuclear magnetic probe; using liquid nitrogen refrigeration to adjust the temperature of the sample chamber to simulate the ultra-low temperature environment of the moon; adjusting the humidity condition of the sample chamber and collecting the nuclear magnetic signal amount of lunar soil under different humidities; establishing a relationship curve between different humidities and the increment of nuclear magnetic signals; when there are differences in the signal amounts, taking the nuclear magnetic signal per unit humidity under steady-state conditions as the benchmark to deduct the signal increment caused by environmental humidity, and obtaining the nuclear magnetic signal data under the equivalent vacuum environment; and inverting the signal amount under the equivalent vacuum to obtain the lunar soil water content. Compared with the existing technology, the present invention solves the key technical problems in the detection of extraterrestrial samples in the earth environment, and provides an important means for lunar water resource detection and the analysis of sampling return samples.

The invention provides a black box magnetic induction searching device and method.The black box magnetic induction searching device comprises an MCU main control circuit, a data acquisition front-end processing circuit and a magnetic gradient sensor, the magnetic gradient sensor comprises two magnetic probes used for detecting the magnetic field intensity of different positions, and the two magnetic probes form a magnetic gradient difference; the magnetic gradient sensor is connected with the input end of the data acquisition front-end processing circuit, the output end of the data acquisition front-end processing circuit is connected with the MCU main control circuit, and the data acquisition front-end processing circuit is used for converting an acquired analog magnetic signal into a digital signal and then sending the digital signal to the MCU main control circuit for analysis and processing. And the MCU main control circuit matches the acquired magnetic field intensity data with a preset magnetic field intensity threshold value, and determines the position of the black box according to a matching result. According to the invention, accurate positioning and searching of the black box at the depth of 0.5 m from the ground are realized, the problem that the black box cannot be searched and positioned when an airplane crashes on the land is solved, and rapid and effective searching of the black box on the land is realized.

The invention relates to the technical field of quantum precision measurement, and provides a quantum magnetic probe which comprises a diamond block, a polarization-maintaining single-mode optical fiber and a microwave radiator. According to the scheme, the optical waveguide for transmitting the linear polarization excitation light in the specific direction is connected with the diamond block containing the NV color center, and the transmission direction of the linear polarization excitation light and the NV axial direction are controlled to form a specific angle, so that efficient excitation in the specified NV axial direction is realized, and the measurement accuracy of the magnetic component in the specified axial direction is further improved; the structure is simple and stable, the size is small, and the practicability is high.

The present invention belongs to the field of biomedicine technology, and more specifically, to a magnetic probe and its application in the preparation and detection of matrix metalloproteinases. The present invention provides a magnetic probe and its application in the preparation and detection of matrix metalloproteinases, the purpose of which is to utilize the hydrolysis characteristics of matrix metalloproteinases to identify specific oligopeptide sequences and cut them, prepare functionalized signal probes, and combine magnetic separation technology and commercial test strips to solve the problems of high cost, low detection sensitivity and narrow scope of application of the existing technology. The present invention utilizes the high specificity of protease hydrolysis and the high sensitivity of the test strips to the target probe to achieve sensitive detection of MMP-1, with a visual detection limit of 65.5 pg / mL, which has good anti-interference and sensitivity in the application of biological sample matrices.

The present disclosure provides a detection system comprising: one or more magnetic probes configured to acquire stress measurements at a plurality of points along a surface of a sample, where stress data is acquired at a plurality of angles for each of the plurality of points; and a computing system communicatively coupled to the one or more magnetic probes, the computing system including at least one data processor and a memory storing a plurality of predetermined material calibration parameters and material characteristics of a plurality of materials and instructions, the instructions, when executed by the at least one processor, cause the at least one processor to perform operations including receiving stress measurements from the one or more magnetic probes, comparing the stress measurements to the material calibration parameters and material characteristics, determining a material characteristic of the sample based on the comparison, and determining the material characteristic of the sample based on the determined material characteristic. And providing the material characteristics of the sample to a user interface display.

The application relates to the technical field of biological medicine, in particular to a alginate / polyethyleneimine composite modified magnetic nano probe and a preparation method and application thereof. The application discloses an alginate / polyethyleneimine composite modified magnetic nano probe, which comprises a composite polymer modified magnetic material and an aptamer connected to the composite polymer modified magnetic material; the composite polymer comprises alginate and polyethyleneimine; the magnetic material in the composite polymer modified magnetic material is Fe3O4 magnetic nano particle; and the aptamer comprises an amino-modified CSV aptamer and / or an amino-modified EpCAM aptamer. The magnetic probe disclosed by the application can sort circulating tumor cells directly in 1 milliliter of patient whole blood without lysing red blood cells, and has high sorting efficiency.

A system and method for investigating a cell are provided. In some aspects, the system includes a sample substrate having a base with a first surface and a second surface, and a sample receptacle formed by an opening in the base and a membrane that spans the opening in the base, and a magnetic measurement apparatus operable to perform a magnetic field measurement on a sample comprising a cell localized in the sample receptacle. The magnetic measurement apparatus includes a magnetic probe having a resonant frequency, and an actuator system, connected to the magnetic probe, that drives the magnetic probe at a driving frequency or at the resonant frequency to sense a magnetic field in or about the sample. The system also includes an electrical measurement apparatus operable to perform an electrical measurement on the sample.

The present application relates to the technical field of pipeline crack detection, and is a pipeline crack recognition device and method based on magnetic probe micro-pressure sensing technology. The former comprises at least one set of magnetic probe micro-pressure detection assembly. The latter comprises assembly and debugging preparation, data acquisition and processing, and data analysis and defect recognition. The present application has a reasonable and compact structure. It realizes smooth running and spiral scanning through elastic driving leather bowl and driving short section. The magnetic attraction force is applied to the pipe wall by the micro-pressure information acquisition short section and is converted into a micro-pressure signal. The magnetic elastic effect is used to capture the abnormal magnetic properties caused by hydrogen embrittlement, realize early warning of potential defects and double detection of macroscopic cracks, and effectively avoid missed detection. The micro-pressure data and three-dimensional space coordinates are fused into a detection matrix by a ranging module, an angle acquisition module and a conductive rotary joint, so that the three-dimensional defect map of the pipe wall is accurately reconstructed and the data is standardized stored.

The application relates to the technical field of amorphous soft magnetic material preparation, and discloses a cobalt-based amorphous soft magnetic alloy material, a preparation method thereof and application. a Fe b Mo c Si d B e C f M g In the formula, a, b, c, d, e, f and g respectively represent the atomic percentage content of corresponding components; wherein 50<=a<=70, 2<=b<=8, 0.5<=c<=5, 10<=d<=20, 10<=e<=20, 0.01<=f<=0.5, 0.1<=g<=5, and a+b+c+d+e+f+g=100; and M represents at least one of elements V, Cr, Mn and Nb. The cobalt-based amorphous soft magnetic alloy material provided by the application has low saturation magnetic induction intensity, low coercive force, high rectangular ratio and other superior soft magnetic properties, is good in corrosion resistance and easy to prepare; and a magnetic probe prepared from the alloy material has high precision in sensor testing, and has important significance for promoting the development of small high-precision magnetic flux gate current sensors.

The utility model relates to the technical field of nuclear magnetic resonance detection, and discloses a heat insulation structure and a nuclear magnetic probe, the heat insulation structure is suitable for being installed in the nuclear magnetic probe and comprises a supporting assembly and a heat insulation assembly, the supporting assembly comprises two supporting pieces and an installation piece, the two supporting pieces are oppositely arranged, the installation piece is arranged between the two supporting pieces, and the heat insulation assembly is arranged between the two supporting pieces. The two ends of the mounting piece are connected with the supporting pieces respectively, any supporting piece is provided with a penetrating part, the mounting piece is provided with a placing part, the placing part is communicated with the penetrating part, and the placing part is suitable for placing a sample; the heat insulation assembly is arranged between the two supporting pieces and the mounting piece in a sleeving mode and is provided with a vacuum cavity, and the inner wall face of the vacuum cavity is subjected to silver plating treatment; the heat insulation performance of the heat insulation structure is improved, the heat insulation structure is not provided with a metal shielding layer, eddy current cannot be generated in an alternating magnetic field, the situation that nuclear magnetic imaging quality is poor or imaging cannot be achieved cannot be caused, the heat insulation structure is easy to install, and the overall assembly difficulty of the probe can be reduced.

The application discloses a kind of orthogonal welding tool, for when being used in preparation three-axis orthogonal magnetic probe, three-axis orthogonal magnetic probe includes horizontal circuit board and vertical circuit board, orthogonal welding tool includes first mounting seat, second mounting seat and compression structure.First mounting seat is equipped with first installation groove, and first installation groove is used to place horizontal circuit board.Second mounting seat is equipped with second installation groove, and second installation groove is used to place vertical circuit board.Compression structure includes pressing block.The pressing block of multiple compression structures is respectively used to be fixed in first installation groove with the vertical circuit board being fixed in second installation groove with the horizontal circuit board being compressed tightly.Wherein, first mounting seat and second mounting seat can slide relative to each other, to make horizontal circuit board and vertical circuit board can be translated and keep perpendicular to each other.Compared with prior art, the orthogonal welding tool of the application is used in preparation three-axis orthogonal magnetic probe, to improve the perpendicularity of horizontal circuit board and vertical circuit board of three-axis orthogonal magnetic probe.

The invention discloses an aviation magnetic sensor angle adjusting device and method.The aviation magnetic sensor angle adjusting device comprises a first driving mechanism, a magnetic probe rod, a second driving mechanism, a sensor support and a controller, the fixed end of the first driving mechanism is installed on an aircraft, and the output end of the first driving mechanism is connected with the magnetic probe rod; the sensor support is rotatably arranged on the inner side of the magnetic probe rod, and the rotating center axis of the sensor support is perpendicular to the axis of the magnetic probe rod; and the first driving mechanism and the second driving mechanism are electrically connected with the controller. The controller controls the magnetic sensor to rotate by a proper angle through the first driving mechanism and the second driving mechanism, so that the magnetic sensor can be adjusted at any time along with the change of a measured geomagnetic inclination angle when the aircraft flies, and a proper included angle is kept between a magnetic sensor measuring optical system main shaft and a geomagnetic field; maximization of magnetic measurement signals in geomagnetic field measurement is facilitated, and magnetic measurement precision is improved.

The invention discloses an underground rock stratum casing distance magnetic detection method and system, and belongs to the technical field of oil and gas well drilling. The method comprises the following steps that S1, a steel short casing is fixed to a support; s2, the first casing pipe and the second casing pipe are connected together through threads to form an outer casing pipe, and then the outer casing pipe is placed on a supporting pipe frame; s3, processing the collected rock blocks into a plurality of cylindrical rock pillars, and pushing the cylindrical rock pillars into the outer sleeve; s4, a magnetic probe, a circuit board and a battery are installed on the inner wall of the titanium alloy outer shell, the circuit board is electrically connected with the battery, and the magnetic probe is electrically connected with the circuit board; and S5, the outer sleeve is placed between the steel short sleeve and the titanium alloy outer shell, the magnetic probe is opened, and magnetic lines emitted by the magnetic probe penetrate through the cylindrical rock pillar in the axial direction of the outer sleeve till the magnetic lines touch the steel short sleeve. The oil field on-site requirement can be met, the overall magnetic detection operation is simple, and the magnetic detection accuracy can be improved.

The application relates to the technical field of aerospace space electromagnetic propulsion, in particular to a high-frequency rotating magnetic field transient magnetic field configuration measuring system and method, the system comprises a high-frequency rotating magnetic field, a three-axis inductive magnetic probe, a signal transmission bus and an oscilloscope, wherein: a plurality of three-axis inductive magnetic probe arrays are uniformly distributed in the high-frequency rotating magnetic field to be measured; one end of the signal transmission bus is fixed at the boundary of the high-frequency rotating magnetic field region to be measured, and the other end is connected with the oscilloscope; the signal transmission line of each three-axis inductive magnetic probe is connected with the signal transmission bus; the oscilloscope is internally provided with a data processing system, which is used for collecting inductive magnetic field signals and processing the same, and displays the configuration and dynamic change of the high-frequency rotating magnetic field to be measured in real time. The application is suitable for transient rotating magnetic field configuration detection with a frequency of 0-1 MHz, and the known inductive magnetic probe, the oscilloscope and other instruments are combined skillfully to have the ability of high-frequency magnetic field measurement.

The present invention discloses an atomic force microscope in-situ electrolytic cell device for measuring the molecular force spectrum of a solid-liquid interface. The structure includes a working electrode, a reference electrode, a counter electrode, and an electrolytic cell. The cell body is sequentially composed of an optical glass window, a flange top cover, a Teflon substrate, a sealing ring, a metal sample support sheet, a central through-hole Teflon support sheet, a magnetic coil plate, a spring gasket, and a flange base from top to bottom. The center of the Teflon substrate is provided with an opening, and the top is sequentially fixed with a flange top cover and an optical glass window from bottom to top. The bottom is respectively composed of a sealing ring, a metal sample support sheet, a central through-hole Teflon support sheet, a magnetic coil plate, and a flange base from top to bottom. An external signal source drives the magnetic coil, and the interaction between the magnetic probe and the molecular / ion clusters inside the interface double layer is used to realize sub-nanometer real-space imaging of the solid-liquid interface structure in the electrochemical process. The present invention can assist in the needs of material electrochemical testing and atomic force microscope data acquisition.

This invention proposes a CRISPR-Cas12a bioassay platform based on AuNPs-labeled magnetic probes for HIV-related nucleic acid detection. Nucleic acid amplification strategies are commonly used to improve sensitivity, but they suffer from drawbacks such as long processing time, complex operation, high risk of contamination, and mismatch-related inaccuracies. This invention proposes a method that eliminates the need for traditional nucleic acid amplification. It achieves sensitive detection of target nucleic acids by combining the self-amplification effect of CRISPR-Cas12a with a dual amplification method utilizing the strong signal detectable by gold nanoparticles in inductively coupled plasma mass spectrometry. The method of this invention achieves a low detection limit of 1.05 amol for HIV-related nucleic acids and has been successfully validated in spiked recovery experiments using fetal bovine serum.

The invention belongs to the technical field of molecular diagnosis, and particularly relates to a miRNA amplification-free detection system and a preparation method and application thereof. The invention provides a miRNA detection system. The miRNA detection system comprises a CRISPR / Cas12a system, a double-labeled magnetic probe and a test strip. The detection system provided by the invention can improve the detection sensitivity and specificity of miRNA under the condition of no nucleic acid amplification; normal color development of a control line of the test strip can be ensured, and reliable interpretation of a result is realized; the device supports rapid, visual and portable result reading and data processing, and is suitable for on-site instant detection.

The application discloses a telescopic supporting arm for a magnetic detector, and belongs to the technical field of magnetic detectors. The telescopic supporting arm mainly comprises a supporting arm, a telescopic assembly arranged on the supporting arm, a supporting rod rotatably connected to the inner side of the supporting arm, a supporting seat connected to the surface of the supporting rod, and a fixing seat connected to the surface of the supporting seat. The telescopic supporting arm for the magnetic detector is convenient for the supporting seat and the fixing seat to be inclined and adjusted through the extension driving force or the retraction driving force of the first driving source and the hinging action of the first hinge seat and the second hinge seat, so that the corresponding magnetic suspension liquid spraying pipe can be inclined and adjusted, and the spraying direction of the magnetic suspension liquid spraying pipe can be adjusted. The two magnetic suspension liquid spraying pipes can be driven to extend outward or retract inward under the rotating action of the first adapter ring and the second adapter ring through the two second driving sources, the spraying range of the magnetic suspension liquid can be expanded through the driving of the magnetic suspension liquid spraying pipe to retract inward and extend outward, and the flexibility of use is improved.

An integration and calibration method of geomagnetic vector measuring device for exploration is provided and includes: S1, designing a magnetic vector measuring equipment main body as a cross-shaped frame structure; S2, arranging magnetic probes at upper and lower ends of a cross-shaped frame; S3, detecting a rotation relationship between three magnetic axis coordinates of each of the magnetic probes and three-axis coordinates of an attitude instrument; S4, correcting and calculating detected parameters. The disclosure solves the problem in prior art, magnetometers and attitude meters are rigidly installed on an airplane through devices such as hard brackets, and the measurement accuracy is not high because there is no perfect calibration scheme without matching. The disclosure greatly improves the accuracy of geomagnetic vector measurement, and can carry out aerial magnetic vector and vertical gradient measurement of magnetic vectors, and be used for ground geomagnetic vector measurement, and has higher practicability.

Provided herein is a system including an IV catheter assembly with a catheter having a distal end positionable intravenously within a patient and a port providing fluid access to the catheter. The system also includes a pre-filled syringe connectable to the port and that contains an aqueous catheter lock solution having magnetic particles suspended therein. The system further includes a probe module comprising a magnetic probe that includes a magnet element and a driver. The magnetic probe is operable in a first driving mode where the magnet element causes the magnetic nanoparticles to migrate towards the distal end of the catheter and is operable in a second driving mode where the magnet element causes a temperature of the magnetic nanoparticles to increase, generating a magnetically-induced hyperthermic condition at the distal end of the catheter that prevents and / or treats thrombus formation and biofilm accumulation in the catheter.