Magnetic Measurements TRIZ Cases

A transmit pad inspection device uses an inductive circuit to measure power transfer efficiency and validate installation alignment.

Dual MgO barrier layers in TMR devices combine DC and RF sputtering to minimize pinholes, reducing contact resistance while maintaining high thermal stability.

A cooling tube mounted on an MRI warm bore transports coolant to stabilize temperature, preventing gradient coil heat from causing magnetic field drift.

An impedance monitor samples empirical power spectral density during operation to detect load faults in MRI gradient coils.

Combining training data sets across successive time points calculates precise synthesis weights, reducing acquisition time while retaining phase information.

Principal frequency analysis of spatial spectra resolves shear stiffness estimation errors in lung tissue caused by low signal-to-noise ratios.

Navigator sequence detects respiratory displacement to confirm breath holding, preventing wasted imaging time from failed attempts.

Segmented conductive legs tuned to distinct Larmor frequencies enable simultaneous multinuclear MRI acquisition.

A dual tunnel magnetoresistance element structure places a conducting layer between two magnetic junctions to decouple crystal structures and reduce coercivity.

A gradient coil device uses a shorter y main coil to reduce residual magnetic fields in MRI systems.

A positron emission tomography system adjusts measurement data using a secondary imaging method to correct for local shifts caused by subject movement.

A magnetic field sensor detects oxygen concentration via magnetoresistance changes in a diamagnetic gas flow.

Inherent adhesion between a graphene membrane and a supportive substrate with a cut-out creates permanent tension, eliminating complex pretensioning equipment.

Sensor feedback automatically positions the patient couch to keep the examination area within the sensor unit's view, eliminating manual adjustments.

A method minimizes compensation dipole magnetic moments by optimizing grid placement for MRI static field homogeneity.

A probe card uses non-coaxial solenoid coils to generate orthogonal magnetic fields for wafer-level sensor testing.

A permanent magnet assembly uses adjustable jack screws to position polarizing assemblies and flux returns within the pole tip structure.

Soft magnetic shield and non-magnetic material block leakage flux to improve angular displacement measurement accuracy.

A magnetoresistive unit accelerometer detects micro-g variations using magnetic tunnel junctions.

Early digitization suppresses sheath waves in electrical conductors while maintaining signal quality.

Orthogonal propeller echo-planar imaging reduces geometric distortions by inverting readout and phase encoding axes.

Thermal conducting members connect heat exchange devices to magnetic members, restoring field homogeneity after location changes.

A vibration decoupling layer isolates RF conductors from support forms to reduce acoustic noise generation.

Axial channels in a thermal interface absorb frictional heat before it reaches the coil, preventing quench events.

A shared receiving coil calibration matrix reconstructs magnetic resonance images, eliminating redundant calibration scans and reducing computational burden.

Relocating switching elements to rod ends decouples resonance from operating frequency, preventing PET signal attenuation and magnetic field disruption.

A sensor processing circuitry adjusts gain and offset coefficients to track rotating target angular positions accurately.

Pilot tone navigation extracts cardiac signals from MR data to eliminate ECG artifacts and improve synchronization reliability.

A stress sensor with a laminated magnetic layer detects multi-directional stress by varying electrical resistance, eliminating the need for multiple sensors.

An external intermediary device uses Maxwell pairs to generate time-stamps, avoiding complex scanner software modifications.

Layer-by-layer deposition forms custom spiral substrates, eliminating distortion from mechanical rolling and enabling tailored acoustic properties.

Incorporating transmission bandwidth into HF pulse optimization reduces computing time while maintaining magnetization distribution accuracy.

Segmented primary coils with force balancing resolve the contradiction between magnet size and field homogeneity in compact extremity MRI systems.

A vertical Hall sensor with three interconnected ring regions equalizes internal resistance across operating phases.

Alternating serial connections cancel induced currents from gradient pulses, maintaining magnetic field homogeneity and protecting coil insulation.

Galvanic coupling of the superconducting field coil to the gradient amplifier eliminates dedicated power supplies, reducing operational effort and expenses.

Multi-channel transmitter system calibrates RF energy to minimize specific absorption rate near implanted conductors.

A dual double-pinned spin valve element uses multiple pinned layers with aligned magnetization to extend sensor sensitivity.

Magnetic resonance apparatus acquires multiple calibration images with varying offset frequencies and spatial positions during a single continuous organ movement period.

Calibration maps apply IDEAL to separate water and fat signals, eliminating chemical shift artifacts in parallel imaging.

EEG fingerprint neurofeedback detects amygdala activation levels to dynamically adjust trauma challenge intensity and reduce stress symptoms.

Multi-peak fat resonance modeling corrects field map estimates to resolve water-fat ambiguity at high magnetic field strengths.

A magnetic resonance imaging device acquires navigator echoes to predict respiratory states before main measurements.

A flowmeter integrates magnetic resonance tomography with electrical capacitance tomography to measure multiphase media.

A wireless transmitter system transmits cardiac signals using a magnetic field tolerant amplifier and RF cancellation delay line.

Ribs and retaining protrusions in the housing secure the bus bar mechanically, eliminating thermal welding costs.

A removable conductor RF antenna maintains resonant properties while enabling parallel imaging capabilities.

Adjusting circuitry compensates for switching dead time by modifying pulse width and gain, ensuring symmetric current waveforms and reducing image distortion.