Magnetic Measurements TRIZ Cases

Current sensors measure amplifier output to predict actual gradient fields, correcting selection pulse distortions without continuous monitoring.

Aligning magnetic anisotropies in detection elements reduces angular errors from harmonic components without increasing system complexity.

A magnetic read head design extends the fixed layer laterally beyond the free layer boundaries to enhance structural integrity and signal resolution.

Segmented superconducting fault current limiters divert quench currents through protection resistors to prevent switch damage and reduce magnetic field decay.

A magnetic field sensor switches to a vibration mode that holds peak values to preserve direction data during mechanical oscillation.

Extending return current paths outside the bore reduces acoustic noise and peripheral nerve stimulation while maintaining gradient field linearity.

Offset ferromagnetic layer center of gravity relative to nonmagnetic metal layers to enhance heat exhaustion in spin-orbit torque elements.

A sensor integrated circuit uses a checker circuit to compare outputs from non-homogeneous processing channels for fault detection.

Sparsity regularization in GRAPPA calibration reduces noise amplification and aliasing for faster high-quality MRI reconstruction.

Real-time MRI visualization segments tool data to guide electrode placement, overcoming lengthy stereotactic surgery and low precision.

Angle-based detection using AMR sensors resolves false triggering from external magnets, improving sleep mode reliability.

Combining magnetic resonance signals from distinct acquisition coils using spatially varying sensitivity profiles to form a unified image.

A self-calibrating parallel multiecho MRI method acquires echoes at different echo times and sampling patterns to generate images.

A trim unit compensates Hall voltage signals to correct sensor non-orthogonality errors.

Segmented insulating carrier aligns conductor turns for closer packing and higher current capacity.

Reactive tuning components minimize signal coupling between adjacent strips, improving intrinsic signal-to-noise ratio in high-density MRI arrays.

Multiple sensor rows and a positioning system detect reinforcement damage while resisting vibration-induced false positives.

Local dipole segmentation replaces complex spherical harmonics to reduce computational complexity while maintaining measurement precision.

An integrated support rod uses a recessed contact area to eliminate bulky cables, enabling reliable power transmission and flexible accessory positioning.

A multi-echo MRI method calculates accumulated phase deviations from concomitant fields to apply corrective gradient adjustments.

A respiratory resistance device standardizes blood flow by applying controlled pressure during inhalation and exhalation phases.

Integrated Hall sensors detect magnetic field strength and duration to distinguish localized threats from widespread attacks, safeguarding MRAM data integrity.

Multi-stage matrix switches dynamically connect element coils to reduce signal degradation and unnecessary radiation in MRI systems.

Segmenting measurement shells with dynamic echo times reduces scan time while maintaining high signal-to-noise ratio.

Bridge circuit magnetoresistance elements convert current changes into voltage signals to detect TMR element failures without increasing circuit complexity.

A magnetoresistive sensor uses a pre-magnetization device to generate an overlapping magnetic field that prioritizes the measurement direction.

Synchronizing motion encoding gradients with broadband excitation captures multi-spectral data in a single acquisition window.

A magnetometer interference detection method compares magnetic field changes with motion sensor data to identify external noise sources.

Conductive coating on RF shields suppresses eddy currents in MRI gradient coils, eliminating slitted screens and bridging capacitors to reduce production costs.

Integrated three-axis magnetic sensor chip measures field vector components to determine encoder position with high resolution.

Acquiring magnetic resonance data from a decentralized partial region in k-space to reduce measurement artifacts.

Segmented hollow and solid wires in MRI gradient coils improve heat extraction and current density without restricting winding density.

Metabonomic methods analyze skin biomarkers using NMR and mass spectrometry to resolve weak responses and distinguish multiple causes of skin conditions.

Series connection of four Hall elements reduces total offset voltage without increasing device complexity or power consumption.

A sensor device integrates compound semiconductor magnetic sensors between metal wiring layers on a semiconductor substrate.

A magnetic resonance imaging apparatus unfolds coil data before performing iterative k-space filling and phase correction.

A tunneling magneto-resistor reference unit uses parallel MTJ devices with anti-parallel magnetizations to maintain constant conductance.

Detecting element measures displacement to control actuator vibration, resolving complexity trade-offs in tactile feedback systems.

Multiplexed sensitivity encoding reconstructs MRI images using iterative phase estimation to balance shot data consistency and magnitude.

A magnetoresistance element with a disordered spinel tunnel barrier maintains stable output voltage independent of film thickness.

Decomposing prescan data into joint transmit and receive correction maps reduces intensity errors below 10% caused by RF field non-uniformities.

A magnetic sensor groups elements to generate phase-shifted signals and applies a conversion algorithm to increase measurement frequency.

A Hall effect sensor driven with AC current extracts the second harmonic signal to measure magnetic field strength without switching circuitry.

Modulates sensor signals with opposite signs before amplification to reduce total offset, enabling higher measurement precision without amplifier overload.

Sparse (k,t)-space sampling with subspace models accelerates MRSI data acquisition while maintaining high spatial resolution and signal-to-noise ratio.

Coherent body-centered cubic structure reduces magnetic damping and maintains perpendicular anisotropy despite high thermal stability requirements.

An oxidized barrier layer enables tunnel magnetoresistance to detect magnetic walls and skyrmions without coupling issues.

Weighted combination of steady-state free precession images establishes spectrally dependent magnetization for selective suppression.

A cuboid magnet and ferromagnetic pole element concentrate magnetic flux to linearize sensor output signals, eliminating irregular magnet costs.

Integrating a cylindrical magnetic body into the ball screw shields Hall sensors, reducing booster size while maintaining detection accuracy.