Measurements Using Magnetic Resonance TRIZ Cases

Two color-center sensor crystals measure field differences under matched excitation to reject spatially homogeneous ambient magnetic noise.

Dual-nucleus MRI coils complicate current and SAR control; built-in sensing monitors matching-network voltage at 1H and 23Na resonances.

Multiple coil sections extend spinal coverage in feet-first MRI positioning while making the assembly easier to place on the patient table.

Patient constitution data and prior examination distributions guide SAR-aware MRI settings, reducing workflow interruptions and unnecessary safety margins.

A switching assembly routes refrigerant gas through heat-exchange or discharge paths to stabilize the radiation shield during MRI operation.

A sliding band capacitor tunes a cooled NMR parent coil without leads, reducing inductive interference and protecting SNR.

Shared resonant circuits decouple multiple MRI RF coil baluns, blocking common-mode current while saving package space and weight.

Parahydrogen SABRE transfers polarization to substrates through static and alternating microtesla fields for simpler production.

Single-sided MRI uses differently sized rings and selective tuning to project a usable field outward while freeing patient access.

Grooves and metallized conductive traces let a ceramic toroid suppress MRI cable currents with less heat and detuning.

A snap-together split toroid and printed circuit boards help MRI cable traps resist detuning and simplify individual replacement.

A compact dual-resonance coil supports one-scan 1H-19F rectal MRI in thin anatomy while improving signal-to-noise ratio.

An external PIN-diode switch detunes an intracardiac MRI receiving loop during transmission, limiting induced currents while preserving image quality.

Coherence phase analysis and a voltage-controlled oscillator synchronize MRI clocks through MR data without added modules.

A monitored feedback circuit adjusts digital signal phase and amplitude to reduce asymmetric interference near the MRI Larmor frequency.

This case uses frequency-locked clock recovery from serial data to synchronize MRI sensor nodes and reduce readout complexity.

A movable holding device counters temperature-gas pressure, keeping NMR samples fixed for stable, repeatable measurements.

A directional coupler, circulator, and feedback loop cancel reflected B1 signals, lowering MRI RF power needs for continuous reception.

A reactive monitor circuit correlates detune-circuit signals with RF transmit status to detect coil faults and protect MR operation.

An MRI RF antenna assembly separates control and MR data links while analyzing electrical characteristics to identify functional faults.

A common cylindrical surface and opposite-pitch windings reduce sample electric fields while preserving NMR signal efficiency.

This case uses clock and data recovery at each MRI sensor node to synchronize serial read-out, reduce artifacts, and lower hardware cost.

This MRI RF coil case uses imaging-aware preamplifier switching and selective signal combining to improve signal-to-noise ratio.