Measurements Using Electron Paramagnetic Resonance TRIZ Cases

See how a flexible bellows decouples cryocooler vibration from the EPR sample while gaseous hel

Two parallel plate-coil edges and tuned transmission lines widen the uniform microwave magnetic field region for more sensitive ESR and ODMR measurements.

A fixed microwave oscillator mixed with a tunable HF generator gives EPR spectrometers low phase noise, high spectral purity, and simpler tuning.

Mixing a fixed microwave oscillator with a tunable HF generator cuts phase noise and cost while preserving high-resolution EPR measurement.

Electromagnetic torque replaces pneumatic spinning to reach much higher sample frequencies, improving solid-state magnetic resonance resolution.

Parallel coils and tuned line units place current at wave antinodes to widen uniform microwave field coverage for more sensitive ODMR and ESR.

A self-sustaining dielectric resonator oscillator measures magnetic fields by frequency shift, removing lasers, photodetectors, and external microwaves.

Coaxial conductor loops separated by dielectric raise iris magnetic field strength and expand loaded QL range for EPR microwave coupling.

Electrical tuning with voltage-controlled and digitally tunable capacitors improves inter-mode isolation, cuts background signals, and supports real-time EPR tuning.

A shared-clock FPGA control unit improves spectrometer synchronism, pulse timing resolution, integration, and maintenance simplicity.

A controllable cold load lowers electromagnetic resonator noise temperature across broad frequencies while preserving field sensing for EPR and NMR.

Equally spaced RF pulse trains capture signal evolution in one EPR run, enabling T1/T2 relaxation maps with less acquisition time and better image quality.

FFT-based removal of long-period fluorescence noise improves NV diamond magnetic field estimation under environmental and excitation-light fluctuations.

A thermally isolated sample heater keeps liquid samples above resonator temperature, reducing freezing while preserving low-noise EMR measurement.

Fast electronic switching and digital control cut deadtime and noise when magnetic resonance systems alternate between continuous-wave and pulsed modes.

A benchtop EPR imager uses spin probes and low-field RF imaging to map 3D oxygen, pH, and viscosity in multi-well cell plates.

High-isolation transmit/receive coils and spaced RF pulses improve EPRI SNR while T1-sensitive imaging distinguishes malignant from healthy tissue.

Digitally controlled switches route HPA and bypass paths between continuous-wave and pulsed modes, reducing deadtime and noise.

Preloaded samples move through cryogenic conditions while a calibration sample aligns the holder to the resonator for consistent data.

A flux transformer nests the magnetic resonance member in its secondary coil, preserving field application and laser access.

Microwave and coherent light transfer NV-centre polarization to 13C metabolites, strengthening MRI signals without cryogenic cooling.

Orthogonal ribbon resonators separate excitation and detection paths in electron paramagnetic resonance systems.

A portable electron spin resonance device uses a gas-permeable capillary to maintain physiological conditions during measurement.

An adaptive filtering algorithm processes individual scans to reduce noise variance before averaging.

A handheld device detects free radicals using a dielectric resonator enclosed in a metal cavity.

Electron spin resonance spectroscopy measures asphaltene field strength in crude oil streams without sample dilution.

ESPI merges spin echo detection with single point imaging to eliminate magnetic susceptibility artifacts and deliver accurate quantitative oxygen measurements.

Longitudinal coupling decouples detection from cavity resonance, enabling broadband frequency scanning without narrowband constraints.

Eliminating reference signal acquisition removes repolarization delays, increasing bandwidth while maintaining sensitivity through stored nominal references.

Orthogonal excitation and detection loops isolate active electron spin signals in electron paramagnetic resonance systems.

Nitroxide radical probes mediate MRI signals to detect free radicals, maintaining dosing precision and reducing harm to normal tissues.

A magnetometer uses a reference signal device to subtract environmental noise from sample photoluminescence signals.

A parallel microstrip resonator array delivers an in-phase excitation signal to generate a uniform microwave magnetic field across a planar sample region.

A magnetic resonance scanner applies phase-cycled radio-frequency pulses with dephasing gradients to eliminate transverse magnetization.

Nitrogen-vacancy centers in diamond enable electrical readout via a field-effect transistor, suppressing parasitic photocurrent to enhance sensitivity.

Transformation toughened zirconia containers resist 40,000 psi while preventing paramagnetic interference in EPR spectroscopy.

Merging transmission and reception into one LC oscillator eliminates resonator protection delays, enabling time-resolved ESR and NMR detection.

Segmenting THz pulse sequences enables extracting nonlinear ESR signals by subtracting linear components, revealing molecular interactions.

A magnetic sensor assembly integrates radio frequency excitation sources directly onto nitrogen vacancy diamond material to create a compact detection unit.

A miniature electron spin resonance sensor detects molecular changes in engine oil by passing fluid through a resonating microwave cavity.

A microwave sensor measures electric-field strength using Rydberg atoms and intersecting laser beams.

Cascaded narrowed regions in the probe conductor focus the RF field to improve sensitivity for ultra-small sample detection.

A non-magnetic carrier holds rapid scan coils for insertion into an electron paramagnetic resonance magnet air gap.

High-Q cavity cooling accelerates spin polarization beyond thermal limits, overcoming slow relaxation times that degrade MRI signal-to-noise ratio.

Focused light beam scans multiple probing positions sequentially to enable rapid optical readout of solid-state spin systems.

A planar resonator layer concentrates microwave magnetic fields within a sub-nanoliter volume above the substrate.

Nanometric superconducting micro-resonator couples with electron spins to enable single-spin detection.

Carr-Purcell-Meiboom-Gill pulse sequences suppress magnetic field fluctuations to extend NV spin coherence and enhance magnetometry sensitivity.

Linear spin arrays angled at the magic angle minimize dipolar coupling, enabling high-resolution detection.

A resonator device uses differential baluns with delay lines to produce a 180-degree phase shift across parallel half-wavelength transmission line resonators.