Magnetic Measurements TRIZ Cases

A spin current magnetization rotational element uses spin-orbit torque wiring to rotate ferromagnetic layer magnetization via pure spin current.

Merging passive components with the leadframe structure eliminates external real estate requirements and simplifies assembly for compact magnetic sensors.

A processor calculates a voltage amplitude to resistance change ratio for tunneling magnetoresistive sensors.

An adjustable time constant in the sensor circuit enables rapid self-testing without reducing measurement precision or increasing noise levels.

A chemically sensitive Hall device uses a back gate to amplify charge carrier density changes.

Integrated magnetoresistive sensor replaces bulky Hall sensors to resolve size and temperature stability contradictions in direct-current fan control chips.

A Hall element uses multiple electrode groups on a semiconductor substrate to detect magnetic fields in two directions.

Vertical circuitry placement above a buried Hall sensor resolves size and sensitivity trade-offs in semiconductor design.

An angled unilateral MRI magnet creates a partially open bore that reduces claustrophobia and enables surgical instrument access.

Identical processors execute diverse firmware algorithms to generate calculation results for comparison, reducing hardware complexity and verification effort.

Corrects corrupted MRI image data in real time by comparing acquired signals against predefined masks and executing partial rescans with adjusted parameters.

A position sensor uses two magnetic sensors to detect opposing magnetic flux directions for accurate rotation angle measurement.

Digitizing MR signals at individual receive coils eliminates extensive cabling, reducing SAR risks and phase distortion in parallel imaging systems.

A control unit divides MRI pulse sequences into small segments synchronized with camera frame rates to detect subject displacement before data acquisition.

Multi-frequency signal analysis compensates for eddy current distortions, maintaining accurate position indications despite conductive object interference.

An amorphous tantalum and metallic oxide layer enables FePt ordering below 300°C, avoiding thermal damage to hard disk structural materials.

A magnetic resonance system digitizes local coil signals and transmits them wirelessly across an air gap using a gigahertz link.

O-Space imaging uses Z2 spherical harmonic gradients to project objects onto concentric rings for efficient spatial encoding.

Replacing conventional magnets with superconducting bulk material reduces MRI size and weight while maintaining high field strength and homogeneity.

A headset uses a magnetic interference sensor to detect external fields and generate compensation signals for the audio amplifier.

Alternating odd and even echo acquisitions across successive TR intervals reduces scan time while correcting phase differences.

Applying a navigator RF saturation pulse eliminates partial saturation effects, improving motion detection accuracy in free-breathing MR imaging.

Slab selection gradient magnetic fields segment the excitation space to exclude out-of-view tissues, eliminating streak artifacts that compromise diagnostic accuracy.

Preheats cooling water to saturation temperature before scanning MRI gradient coils, stabilizing coil temperature and reducing image artifacts.

Reference sensors capture MRI sequencing signals to compute programmable corrections that reduce interference and improve cardiac condition assessment accuracy.

A condition determination apparatus generates detection values from angle sensor signals to monitor operational status.

A tunnel magnetoresistive element uses a low-resistance leakage layer to facilitate spin-polarized current flow through the free layer.

A continuous table motion MRI method acquires large field of view data using dynamic lateral field adjustments and k-space interpolation.

A three-contact Hall effect structure uses non-linear interconnections to maintain equal internal resistances across spinning phases.

Adjustable prefabricated Halbach magnet rings reduce mechanical shim degrees of freedom, minimizing stray fields and assembly complexity.

Parallel biasing of stacked p-type and n-type epitaxial Hall elements optimizes the output voltage signal for magnetic sensing applications.

Under-sampled echo-planar excitation trajectory drives multiple pencil regions simultaneously, reducing 2D pulse duration and improving M-mode time resolution.

Localized thin regions allow Hall sensors closer to magnetic dipoles, improving encoder accuracy without compromising mechanical strength.

A linear transformer uses a core flux sensor to detect magnetic flux levels and adjusts primary winding current for efficient energy transfer.

Rotating k-space blades to align with a Cartesian grid eliminates complex deconvolution steps, reducing reconstruction time while maintaining image quality.

Split DC loop RF coil elements integrate B0 shimming to correct localized field inhomogeneities without separate hardware.

Rotating a slide alters the magnetic circuit to achieve high holding force without increasing magnet height.

Runtime parameter re-estimation corrects ferromagnetic interference errors without complex calibration.

Segmented CoMn alloy layers minimize stress-induced noise while maintaining high magnetoresistance area product.

A sensor system determines absolute angular position using a magnetic coupling mechanism between a rotor and an axially traveling sleeve.

A monitor circuit compares signals from a series test sensor and main sensor to detect measurement drift and false positives.

A magnetic field sensor integrates two sensing elements to produce a single two-wire output signal encoding angular speed and direction data.

Dynamic gantry orientation resolves fixed-bore limits, enabling precise weight-bearing spinal diagnostics.

A magnet controller connects an energy dump unit across a superconducting coil to dissipate magnetic field energy externally.

Torus coolant containers integrate plate members to support coil bobbins without welding, reducing MRI vertical dimensions.

A CPP magnetoresistive element uses a zinc oxide spacer layer to reduce area resistivity.

Dynamic RF-phase progression optimizes contrast between volume regions, resolving trade-offs between image quality and flexibility.

Virtual projection of imaging cross-sections and median lines onto the couchtop enables remote operator positioning without radiation exposure.

Multi-channel parallel RF transmit coil assemblies minimize specific absorption rate by optimizing B1 field distribution via flexible current path control.