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VTMR TD-NMR Cross-linking Density Analyzer NMR and MRI System for Polymer

Product Description

EDUMR is a desktop NMR device designed for MRI experimental teaching. Courses to teach NMR principles and experiments through MRI demonstration can be created by including EDUMR in physical corresponding majors (modern physics, applied physics, radio physics, electronic engineering, etc.) or medical corresponding majors (large-scale medical apparatus, medical imaging technology, biomedical engineering, etc.). Extensive experimental courses and majors like NMR engineering related to hardware structure can also be established with through the use of EDUMR. 

Basic Parameters:

• Magnet type: permanent magnet;
• Magnetic field intensity: 0.5±0.08T;
• Probe coil: Ø15mm;
• Weight: 138Kg;

Applications:

1.NMR analyzing and imaging mechanism

Basic NMR analyzing and imaging mechanism

NMR phenomenon

Relaxation and NMR signal

Spatial orientation of NMR signal

NMR image reconstruction

Pulse sequence

2.MRI system

Magnet body system

RF(radio frequency) system

Gradient field system

Spectrometer and computer system

Magnetic shielding and RF shielding

Pulse sequence

3.NMR&MRI Principium experiments

Mechanical and electronic shimming

Lamor frequency measurement by hard pulse FID sequence

FID sequence signal in rotating coordination system

1D-processing and gain adjustment of FID signal

Hard pulse RF measurement with hard pulse echo sequence

Soft pulse RF measurement with soft pulse FID sequence

Soft pulse echo sequence

T1 relaxation time measurement using inversion restoring method

T1 relaxation time measurement using saturation restoring method

T2 relaxation time measurement using hard pulse CPMG sequence

Chemical shift measurement of alcohol

4.MRI experiment

Spin-echo sequence MRI

PD（portion density）/T1/T2 weighted imaging(Spin-echo sequence)

ID gradient encoding imaging

Inversion restoring sequence MRI

2D gradient echo sequence MRI

Effect of parameter setting on image size and shape

3D echo sequence MRI

5.Hardware structure

Tuning and matching of RF(radio frequency) coil

RF switch and pre-amplifier

RF power amplifier and RF waveform modulator circuit

Data processing experiment (simulation)

Gradient amplifier

Structure and control signal of spectrometer system

High frequency digit storage oscilloscope test

6.Advanced experiments

Simulation of 2D-FFT image rebuilding

Image quality evaluation

Simulation of 3D-FFT image rebuilding

Fluorine content measurement of toothpaste

Oil content measurement of sesame