Magnetic Measurements TRIZ Cases

Calibration measurements determine gradient moment differences to shift scan points, correcting artifacts from anisotropic gradient delays in radial scanning.

A measurement system uses a rotating magnet with flux density asymmetry to adjust magnetic field strength at the sensor position.

Comparing dual magnetic angle sensor outputs detects turn counter errors caused by temperature-induced non-linearity.

Frequency multiplexing merges intermediate signals onto one cable, eliminating heat generation near the patient and reducing mechanical stress on connections.

A reading circuit acquires sensor samples to calculate and apply offset compensation directly within the signal path.

Parallel current sensor units with spaced conductors detect target currents using differential magnetic field measurement to suppress external interference.

Switchable flux conductors modulate magnetic fields onto sensors, computing out 1/f noise contributions while maintaining low power consumption.

Magnetic field detection enables real-time spatial tracking of audio devices, eliminating manual calibration while maintaining location accuracy.

Adaptive channel reduction selects and combines RF coil signals using sensitivity maps to create fewer output channels.

A magnetoresistive sensor uses nonmagnetic conductive layers of different thicknesses to adjust interlayer coupling fields and match temperature coefficients.

A deformable phantom with a reciprocating piston simulates physiological motion to improve tumor targeting accuracy in radiation therapy.

Complex k-space subtraction of undersampled datasets reduces motion artifacts and noise amplification during parallel accelerated MRI reconstruction.

On-coil switched-mode amplifiers drive L-C coils at distinct resonance frequencies, resolving synchronization conflicts in parallel MRI transmission.

Hard and soft magnetic layers in a magnetometer yoke structure minimize remanent magnetization changes, reducing sensitivity shifts and noise.

Loading plots share spectrogram coordinates to identify sample components, resolving analysis complexity and improving parameter correction.

High magnetic moment bias layers in scissor sensors reduce signal asymmetry while maintaining amplitude despite complex pinning constraints.

An insulation mat with fluid inflation decouples PET components from MRI gradient coils, reducing thermal coupling and vibrational interference.

A tissue-sensitivity map guides ultrasound transducers to clear microbubbles in low-risk regions before treatment.

A magnetic field sensor surrounded by a substrate trench and sealed with a protective cap structure.

Merged gradient and main field coils reduce eddy currents and shim drift without separate magnets.

Interlocking unit blocks form customizable medical phantoms for dosimetry and image quality evaluation without external containers.

Eigenvalue decomposition selects dense grid points to reduce scan time while maintaining image quality.

Elastic engaging members fix magnetic shields to holders, eliminating backlash from dimensional deviations and reducing assembly complexity.

Pulsed radio frequency sequences reduce RF power deposition and magnetization transfer artifacts during arterial spin labeling MRI.

Segmentation and registration correct motion corruption in fetal brain imaging, enabling accurate diffusion tensor estimation despite unpredictable movement.

A Hall element uses a mesa-shaped magneto-sensitive layer to detect magnetic fields parallel to the substrate.

Predetermined marker geometry resolves signal correspondence ambiguity, eliminating cables and reducing motion artifacts during MR scans.

Segmented k-space acquisition with view sharing reconstruction reduces undersampling artifacts while maintaining high spatial resolution.

Vibration-proof support structures apply pressing and pulling forces to secure gradient coils, reducing mechanical noise and enhancing image quality.

Ferroelectric polarization domains generate local electric fields to control the structural phase of two-dimensional material layers.

Shifting the center frequency of an RF preparatory pulse covers asymmetric Larmor distributions, reducing susceptibility artifacts without increasing SAR.

An angular elliptic centric view ordering scheme reduces gradient polarity switches and total k-space path length.

Integrated point field detectors and decoupling circuits measure phase currents while minimizing cross-coupled magnetic fields from adjacent devices.

Segmented magnetic fields stabilize navigation speed while preventing radial escape, resolving control instability in biological tissue.

Segmented AMR resistors with tilted orientations cancel shape anisotropy errors, achieving sub-0.04 degree accuracy.

Aluminum conductor patterns paired with copper terminals minimize electrolytic corrosion while maintaining connection strength.

A nuclear magnetic resonance apparatus measures macromolecular proton fraction using radiofrequency pulses to suppress unwanted tissue signals.

A vertical magnetoresistive effect element connects to bit lines through an insulation film.

Lattice-Boltzmann simulations on digital models determine absolute permeability without upscaling computations.

Lookup table injection cancels signal errors in magnetic sensors, resolving the trade-off between angular accuracy and response speed.

Compressed sensing reconstructs high-resolution MRI images from sparse data, enabling continuous needle advancement without acquisition interruptions.

Retrograde dopant profiles enhance current flow depth in vertical Hall sensors, resolving limited signal output from shallow carrier penetration.

Magnetic tunnel junction sensors use non-overlapping electrodes to detect biomarkers.

Cylindrical acoustic shield with metamaterial layer absorbs gradient coil noise, reducing bulky structure requirements.

A navigator image generation method processes one-dimensional profiles into segmented images using deep learning neural networks.

A filter kernel determines background phase using harmonic modeling.

A balun uses parallel serial resonance circuits to block common mode noise in MRI apparatuses.

A magnetic field sensor uses a shared path amplifier and dual-path analog-to-digital converter to process measured and reference signals.

Serial magnetoresistive strip segments average phase-shifted discontinuities, eliminating signal jitter without sacrificing sensitivity.