Measurements Using NMR Spectroscopy TRIZ Cases
- Solid Sample NMR Probe Idler Coil Inductive Coupling
Idler coil inductively couples to parent coil to create double resonance circuit while eliminating lead inductance losses.
- MRI Temperature Measurement Using Dual-Spectrum Analysis
A magnetic resonance imaging apparatus calculates temperature and accuracy from dual-substance spectra in a single measurement.
- TD-NMR Quantification of Solid Mixtures via T1 Saturation Recovery
A TD-NMR method determines component quantities in solid mixtures using T1 saturation recovery curves and linear combination fitting.
- Miniature Stochastic NMR System with Active Shims
A miniature stochastic nuclear magnetic resonance system uses active shims to correct bias field inhomogeneity for precise spin density measurement.
- Magnetic Resonance Image Reconstruction k-Space Displacement Correction
A reconstruction device shifts readout points in k-space to correct gradient switching dilatation artifacts.
- Saddle Coil Assembly for Magic Angle Adjustment in Solid-State NMR
Optimized saddle coil assembly produces uniform magnetic fields for precise magic angle adjustment in solid-state NMR systems.
- External Standard Reference System for MRI Metabolite Quantification
An external standard reference system inserts containers with known metabolites into the MRI coil to enable precise quantitative analysis.
- Multi-banded RF Pulse Magnetization Transfer Imaging
Symmetrical multi-banded RF pulses saturate bound water spins without increasing direct saturation of mobile water, reducing preparation time.
- Adiabatic Tip-Down and Flip-Back Pulses for MRI Tissue Contrast
Adiabatic tip-down and matched flip-back pulses separate mobile and bound spin pools, resolving inadequate tissue-blood contrast from phase dispersion.
- Polyester Molecular Weight Measurement via NMR Solvent Shift
Organic base additives shift NMR signals to separate overlapping terephthalic acid peaks, resolving measurement precision issues in molecular weight analysis.
- Optimal Phase Surface RF Pulse Design for Magnetic Resonance
Iteratively updating initial radiofrequency pulse profiles on an optimal phase surface resolves hardware limitations in magnetic resonance experiments.
- Frequency Modulated NQR Chemical Detection
Nuclear quadrupole resonance signals undergo frequency modulation via time-varying magnetic fields to identify target chemical nuclei.
- Spectroscopic Quantification Error Lookup Tables
Error lookup tables automate spectroscopic quantification by replacing iterative calculations with pre-computed values.
- Subspace Imaging Framework for Ultrafast MRSI
A subspace imaging framework reconstructs high-resolution magnetic resonance spectra using learned spectral features and ultrashort echo time acquisitions.
- Time-Domain NMR Analysis of Dry Food Samples
Conductive heating of dry food samples enables rapid time-domain NMR measurements without altering chemical structures.
- MRS Frequency Phase Correction via Machine Learning
Machine learning models replace manual pipelines to improve metabolite quantification accuracy despite increased processing complexity.
- Quantitative NMR Protein Concentration Determination
A quantitative nuclear magnetic resonance method determines protein concentration using diffusion filters to eliminate water and formulation component resonances.
- 3D Radial MRI Sampling for Short T2 Imaging
A 3D radial spoiled GRE imaging technique uses frequency-modulated hyperbolic-secant pulses to enable ultra-short echo times.
- Multi-dimensional NMR Method for Coupling Constant Measurement
A multi-dimensional NMR method uses PSYCHE elements and EPSI readout to extract scalar coupling constants from proton networks.
- Unsupervised Neural Network for NMR Relaxation Inversion
An unsupervised neural network learns optimal regularization parameters from unlabeled NMR relaxation signals to produce accurate time spectra.