Measurements Using Electron Paramagnetic Resonance TRIZ Cases
- Cryogen-Free Cryostat Vibration Isolation for EPR Sample Cooling
See how a flexible bellows decouples cryocooler vibration from the EPR sample while gaseous hel
- Parallel Plate Coil Layout for Uniform 3D Microwave Magnetic Fields
Two parallel plate-coil edges and tuned transmission lines widen the uniform microwave magnetic field region for more sensitive ESR and ODMR measurements.
- EPR Microwave Source Mixing for Low-Noise Spectral Resolution
A fixed microwave oscillator mixed with a tunable HF generator gives EPR spectrometers low phase noise, high spectral purity, and simpler tuning.
- EPR Spectrometer Microwave Mixing for Low-Phase-Noise Tuning
Mixing a fixed microwave oscillator with a tunable HF generator cuts phase noise and cost while preserving high-resolution EPR measurement.
- Electromagnetic Sample Spinning for High-Frequency Magnetic Resonance
Electromagnetic torque replaces pneumatic spinning to reach much higher sample frequencies, improving solid-state magnetic resonance resolution.
- Dual-Coil Microwave Field Layout for Uniform 3D ESR Detection
Parallel coils and tuned line units place current at wave antinodes to widen uniform microwave field coverage for more sensitive ODMR and ESR.
- Dielectric Resonator Spin Sensor Without Lasers or Photodetectors
A self-sustaining dielectric resonator oscillator measures magnetic fields by frequency shift, removing lasers, photodetectors, and external microwaves.
- Segmented Iris Coupling Loops for Wider Microwave QL Range
Coaxial conductor loops separated by dielectric raise iris magnetic field strength and expand loaded QL range for EPR microwave coupling.
- Bimodal EPR Resonator Tuning for Inter-Mode Isolation
Electrical tuning with voltage-controlled and digitally tunable capacitors improves inter-mode isolation, cuts background signals, and supports real-time EPR tuning.
- FPGA Spectrometer Control for Synchronized Pulse Timing
A shared-clock FPGA control unit improves spectrometer synchronism, pulse timing resolution, integration, and maintenance simplicity.
- Method and apparatus for reducing the noise temperature of systems comprising samples which interact with oscillating electromagnetic fields supported by electromagnetic resonators
A controllable cold load lowers electromagnetic resonator noise temperature across broad frequencies while preserving field sensing for EPR and NMR.
- Pulse EPR Imaging Sequence for Faster T1/T2 Relaxation Mapping
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.
- NV Diamond Magnetometry Noise Filtering for Accurate Field Estimation
FFT-based removal of long-period fluorescence noise improves NV diamond magnetic field estimation under environmental and excitation-light fluctuations.
- EMR Sample Heating with Thermal Isolation for Cryogenic Resonators
A thermally isolated sample heater keeps liquid samples above resonator temperature, reducing freezing while preserving low-noise EMR measurement.
- Magnetic Resonance Amplifier Switching for CW and Pulsed Modes
Fast electronic switching and digital control cut deadtime and noise when magnetic resonance systems alternate between continuous-wave and pulsed modes.
- Desktop EPR Imaging for 3D Oxygen Mapping in Multi-Well Plates
A benchtop EPR imager uses spin probes and low-field RF imaging to map 3D oxygen, pH, and viscosity in multi-well cell plates.
- Stimulated-Echo EPRI Imaging With High-Isolation RF Coils
High-isolation transmit/receive coils and spaced RF pulses improve EPRI SNR while T1-sensitive imaging distinguishes malignant from healthy tissue.