Magnetic Measurements TRIZ Cases

Diagnostic data is encoded in supply current so a three-terminal sensor package can report faults without extra pins, reducing cost and complexity.

Rotating MRI magnet coils to optimized orientations reduces spatial field inhomogeneity and shimming effort while improving image quality.

Predicting the next Hall sensor state from prior states and shaft direction helps detect motor sensor faults early and reduce maintenance.

Adjustable shim layers in a multipart pole piece improve Halbach magnet field homogeneity in compact NMR systems with limited space.

Pure spin current from spin-orbit torque wiring reverses magnetization with lower current density, reducing Joule heat and extending MRAM element life.

Amorphous CoFeX and CoFeXTa seed layers preserve heat stability while improving pinned and free layer crystallinity for higher TMR and Hex.

Integrated polysilicon diodes in dielectric layers protect stacked-die interconnect pads from ESD without adding separate protection structures.

Amorphous CoFeX seed layers buffer crystal collisions during high-temperature annealing, preserving crystallinity and raising TMR and exchange field.

Stacked spinel oxide barrier layers balance MR ratio and bias voltage to improve low-voltage output for more accurate MRAM reading and writing.

Magnetic field patterns verify battery authenticity, letting users compare charging stations by their likelihood of delivering genuine batteries.

A recessed base slot nests the sensor and filter inside the camera motor, cutting module height while preserving autofocus and larger sensor integration.

Independently controlled nested coils and flux sensing adjust penetration depth to lift the target number of steel sheets more precisely.

A skyrmion layer magnetically coupled to a vortex layer suppresses vortex annihilation and extends MR sensor linear response.

Magnetic field distribution is used to verify battery authenticity and rate charging stations by their genuine product delivery probability.

An oxide dusting layer and CoFeB thickness tuning create perpendicular anisotropy, improving out-of-plane MR sensor sensitivity and linearity.

Load increase sensing triggers battery cooling before temperature lag causes overheating, improving protection and reducing downtime.

Parallel thermal switch paths and parallel heaters keep MRI superconducting coils operating through quench events and heater disconnections.

A shared magnetometer detects accessory orientation from combined attachment fields, cutting Hall sensors, magnets, and layout complexity.

Extracting and matching the common-mode signal as a noise template removes residual electrical and magnetic interference and improves SNR.

High-frequency current imbalance spreads heat through HTS magnet coils, reducing hot spots and improving quench protection in REBCO magnets.

Opposed Hall sensors and differential amplification measure high current in large EV conductors while rejecting background magnetic fields.

Opposed Hall sensors on a flexible PCB use differential amplification to measure high current in large conductors while rejecting background fields.

An amorphous B, C, or Ge passivation layer shields MTJ sidewalls from oxygen diffusion and redeposition during dielectric deposition and annealing.

Magnetic coupling to a perpendicular anisotropy layer enlarges and stabilizes the vortex core, improving TMR sensor sensitivity and linearity.

A magnetometer reads the combined field of attachment parts to verify accessory positioning in either orientation without extra Hall sensors.

Magnetic coupling to a perpendicular layer enlarges the vortex core while preserving stability, improving TMR sensor sensitivity and linearity.

A boron-free amorphous CoFeX seed layer enables high-temperature annealing while preserving crystallinity, TMR ratio, and exchange field.

Timed bias-voltage switching cuts BLDC magnetic sensor power use while preserving accurate phase-change detection.

A thin transition metal insert stiffens the SAF reference layer, cutting high-field angular error while preserving TMR response.

Conductive and magnetic paste shielding on a current sensor case improves dV/dt behavior, EMC performance, and noise immunity at lower cost.

Maglev carriers on a twin planar motor stage align and measure wafers in parallel, raising metrology throughput without sacrificing precision.

A self-diagnosing Hall sensor verifies other motor position sensors to detect faults, improve control reliability, and limit wiring cost.

A CoFeB and Fe-Gd layered photodetector uses magnetoresistance to boost light detection and optical-to-electrical conversion.

Time-varying spin-orbit torque modulates MTJ conductance to detect static magnetic fields with lower offset error, better resolution, and less power.

Applying an external magnetic field during PBM injection aligns rotor-pole magnetization and improves field consistency, yield, and PMSynRM rotor performance.

Applying an external magnetic field during PBM injection aligns rotor magnet particles and checks field strength for more consistent PMSynRM output.

A nested leadless package inside a wider lead-frame package preserves fine-pitch circuitry while meeting high-voltage isolation spacing.

A shared ferrite core combines motor, rotary transformer, and RF link functions to cut parts, simplify assembly, and improve rotating sensor reliability.

An amorphous B, C, or Ge sidewall layer shields MTJs from oxygen diffusion and metal redeposition during dielectric deposition and 400°C annealing.

A RuAl synthetic antiferromagnetic spacer boosts exchange coupling on textured layers while improving thermal stability and reducing magnetic noise.

A single-turn primary and resonant converter cut parasitic coupling while keeping MRI gate driver output stable across load.

An integrated support tray with through-hole suspension assemblies stabilizes superconducting magnets in multiple directions while simplifying installation.

Predetermined magnet and ferromagnetic segments improve magnetic field uniformity and strength while reducing weight and fringe fields for MRI.

Axial superconducting loops spread quench heat through low-copper MRI coils, reducing local damage risk without raising material cost.

Magnetic-field stress on a piezoelectric layer modulates a semiconductor channel, enabling a passive CMOS-compatible switch with reed-switch replacement value.

Series-connected parallel thermal switches balance current and preserve MRI magnet operation during quench events and heater faults.

Microsecond semiconductor switching plus MCU-triggered air-gap isolation cuts fault response time and reduces breaker maintenance.

A single centered magnetic sensor reads field orientation to widen motor position detection range and avoid phase-shift errors from multiple sensors.

A control unit switches between an LDO during sensing and a DC/DC converter otherwise to keep measurement data accurate without wasting battery power.

Offset compensation shifts sensor output away from switching thresholds to eliminate false positives during diagnostic testing.

Central placement of a magnetic shielding element between coil rings protects electrical components from interference while preserving imaging homogeneity.

Automated testing reduces validation time from six months to 70 minutes by replacing manual procedures with virtual models.

A magnetic profile measuring device uses an alternating-current field to reverse probe magnetization and modulate cantilever vibration for signal detection.

A magnetoresistance effect element uses a silicon nitride and boron nitride insulating film to cover outer circumferential portions.

A bridge magnetic sensor uses a dummy resistor structure with dual regulators to stabilize common mode voltage.

Sliding arc members adjust the needle guide angle after attachment, resolving imprecise entry on non-flat surfaces.

An interlayer coupling field canceling layer counters magnetic interference, enabling thinner barrier layers and higher areal recording densities.

A linear predictor estimates peripheral nerve stimulation thresholds using a Huygens P-matrix for coil geometry.

Finite medium models calculate tissue mechanical properties from filtered displacement data in magnetic resonance elastography.

Current spinning sequences through vertical Hall elements to equilibrate offset voltages, improving magnetic field angle measurement accuracy.

A handheld Hall effect sensor detects magnetic fields from ingested batteries or magnets in the esophagus.

A standing wave barrier with a longitudinal groove allows cables to glide freely while suppressing RF currents via parallel resonance.

Bias current injection circuits force known current direction at H-bridge central points to eliminate dead-band effects in power converters.

Replacing electromagnets with a magnetoelectric mechanism reduces operation energy and space requirements while maintaining stable frequency control capability.

Frequency multiplexing excites multiple cross sections simultaneously, reducing total imaging time while maintaining signal quality.

Segmented double-pancake coil modules minimize external field leakage and shielding volume while maintaining high internal homogeneity.

RF sputtering deposits dielectric layers on III-V semiconductors to create high mobility interfaces.

Three independent sensing modules on one substrate measure X, Y, and Z fields while shielding structures prevent cross-axis interference.

Dynamic RF frequency switching merges respiratory tracking with metabolic imaging to eliminate motion artifacts without extending examination time.

A microprogrammed correction device modifies digital set-point signals using configurable coefficients to deliver precise magnetic field gradients.

Magnetic resonance imaging apparatus detects irregular synchronization intervals during electrocardiographic gating to control gradient power sources for data reacquisition.

Integrating a Hall sensor within the power device footprint detects magnetic fields from conductive fingers, eliminating bulky external measurement circuits.

Segmenting the free layers via a spacer resolves the trade-off between spin-orbit torque efficiency and thermal retention in MRAM.

Shielding configuration uses geometrically positioned regions with opposite inductive couplings to minimize energy transfer from the resonator system.

Dual cooling paths reduce transition time from 300 minutes to 20 minutes by combining solid thermal conduction with active liquid helium circulation.

Planar shim coils correct magnetic field distortions in miniaturized NMR magnets.

Magnetic resonance spectroscopy analyzes metabolite peaks to assess cell proliferation, enabling sample reuse that reduces experimental costs and time.

A Hall-effect sensor uses a spread spectrum calibration signal to adjust sensitivity, maintaining accuracy without heat generation from calibration currents.

Periodic polarity reversal prevents sustained neuronal depolarization, enabling stronger gradients without bio-effects.

Three magnetic detection elements positioned at 0, 120, and 240 degrees process signals to reduce noise impact on angle detection accuracy.

A magnetoresistive structure varies resistance based on magnetic fields to generate a precise current detection signal.

An evaluation circuit monitors a temperature-time integral against a budget threshold to prevent reliability failures beyond specified operating conditions.

Non-linear magnetophoretic transport immobilizes magnetic beads on a micromagnet array, preventing coagulation and enabling high-resolution optical detection.

A magnetic speed sensor reduces rotation measurement jitter by averaging signals from multiple sensing elements arranged in a Wheatstone bridge.

A two-stage off-resonance correction algorithm acquires a low-resolution field map using single-shot spirals to guide frequency-constrained reconstruction.

X-ray images determine subject movement to correct magnetic resonance artifacts, improving image quality without external markers.

Adapter overmolding seals torque sensor beam, resolving assembly complexity and Hall cell positioning accuracy.

Periodic terminal switching modulates the Hall signal, allowing synchronous detection to remove offset components and suppress spike-like errors.

Paired refocusing pulses within velocity encoding steps enhance robustness against B0 and B1 inhomogeneity, reducing image distortions.

An N×M reduction matrix processes incomplete data sets to accelerate magnetic resonance image reconstruction.

Segmented RF pulses and phase cycling mitigate non-CPMG artifacts while maintaining signal intensity.

A magnetic oscillation element uses spin transfer to excite magnetization vibration in a free layer.

Segmented k-space processing corrects phase errors in undersampled regions, reducing artifacts without increasing scan time.

Back-to-back MEMS switches absorb transient energy via passive elements, preventing self-actuation and protecting against voltage surges.

A dual edge synchronization mechanism selects the closest clock edge for analog input signals to minimize output jitter.

Applying slice selection gradients during phase encoding corrects magnetic field nonuniformity distortions while maintaining fast scanning speeds.

Three contacts arranged symmetrically reduce zero-point errors in vertical Hall devices by compensating for asymmetry.

A current sensor verifies amplifier gain using reference voltages.