Measurements Using Double Resonance TRIZ Cases

See how an airlock chamber and equilibrator pre-cool samples before helium-bath entry, reducing

Using water and a size exclusion filter, this case avoids alkaline pH shifts that disrupt EPA removal and polarization retention.

Digital IF generation in a superheterodyne MRI spectrometer suppresses image sidebands and LO leakage for more precise spin control.

Digital IF processing in an FPGA-controlled superheterodyne spectrometer suppresses sidebands and leakage for cleaner magnetic resonance signals.

Intermolecular NOE transfers spin polarization from a pre-polarized source compound to a target, boosting NMR sensitivity without cryogenics.

FPGA-based digital IF control suppresses local oscillator leakage and image sidebands in magnetic resonance systems for cleaner, phase-coherent signals.

A shielded zero-field NMR setup uses magnetic pulse control and magnetoresistive sensing to boost sensitivity and cut dead time.

Optically polarized source compounds transfer spin polarization to target compounds through NOE, improving NMR/MRI sensitivity.

A shielded chamber, pulsed fields, and ferromagnetic magnetoresistive sensors enable sensitive NMR without external static fields.

This wearable NMR case pairs low-field Halbach magnets with timed RF sensing for continuous, non-invasive blood analyte measurement.

Orthogonal coil orientation minimizes mutual interference while maintaining high sensitivity and magnetic field homogeneity at two distinct frequencies.

Resonant transfer of electron spin polarization to nuclear spins in moving particles enhances hyperpolarization efficiency.

Hyperpolarized 13C-fructose replaces carbonyl agents to extend relaxation time and resolve metabolic information loss.

Reverse micelles encapsulate biomaterials with spin radicals to enhance nuclear magnetic resonance signals via dynamic nuclear polarization.

A toroidal resonator assembly with a stepped through-hole and axial slit enables simultaneous electron and nuclear resonance excitation.

Diamond spin defect centers use optical pumping to induce nuclear spin polarization at room temperature, bypassing bulky magnets.

Integrating the NMR coil around a thin sample cavity reduces dielectric heating and improves measurement reproducibility.

Integrates a radio-frequency coil into a loop-gap resonator via elongated leads, reducing coil diameter and improving detection sensitivity for liquid samples.

Exposing fluid and parahydrogen to a catalyst creates hyperpolarized fluids that resolve low water molecule visibility in MRI by boosting signal intensity.

Flash lamp triplet DNP polarizes benzoic acid derivatives doped with pentacene, eliminating expensive cryogenic equipment and high magnetic fields.

Conically tapered waveguide and dielectric coupler focus microwaves to increase energy density, reducing beam divergence loss in NMR probes.

Dynamic magnetic field cycling tracks inhomogeneously broadened NV center resonance, enabling high bulk 13C polarization in powdered diamond.

A nuclear magnetic resonance method uses a detection spin moment to measure transverse magnetization phase.

A rapid cycle dynamic nuclear polarization apparatus uses a stripline detector to analyze samples in a capillary.

Vacuum-insulated auxiliary coil decouples thermal loads from the main magnet, resolving quenching risks during flexible field strength sweeps.

Optical dynamic nuclear polarization eliminates cryogenic infrastructure requirements while achieving five orders of magnitude 13C polarization enhancement.

Dynamic nuclear polarization amplifies hydrogen signals, eliminating prepolarization coils and reducing SQUID interference.

A magnet assembly merges dynamic nuclear polarization and NMR detection regions to eliminate sample transfer distance, reducing hyperpolarization decay time.

An automated hyperpolarization apparatus manages sample transport and cryogen circulation to maintain sterility.

An active cancellation system generates a phase-shifted signal to mitigate self-interference in an electron paramagnetic resonance spectrometer.

A passive filter circuit applies quadrature phase shifts at distinct Larmor frequencies to enable simultaneous dual-nuclear magnetic resonance operations.

Optimizing vacuum window thickness and spacing in DNP-NMR probes enhances microwave transmittance.

Lactic acid replaces toxic pyruvic acid and glycerol in MR probes, preventing crystallization while eliminating metabolic perturbations.

Replacing metallic mirrors with dielectric DBRs eliminates induced currents that distort static fields, improving spectral resolution and detection sensitivity.

Alternating dielectric layers in a photonic band-gap resonator reduce millimeter wave losses and increase NMR signal sensitivity above 30 GHz.

An actuator system transposes receivers inside a double-resonant transmit resonator, eliminating interference between 1H and X-nucleus imaging channels.

A frequency agile gyrotron generates broad-banded microwave radiation to control electron paramagnetic resonance spins.

Real-time MRI quantifies hepatic redox kinetics to replace invasive biopsies and accurately differentiate non-alcoholic steatohepatitis from simple fatty liver.