MacroMR Series – Large-Bore NMR Imaging & Analysis System - 纽迈 Low-Field NMR – Advanced, Intelligent, and Eco-Friendly Laboratory Equipment

Macro Samples

Capable of detecting samples ranging from millimeters to decimeters

Microscopic Features

Analyse molecular-level motion characteristics of the sample

Statistical Representation

Captures all hydrogen proton signals within the detection region

Multiphysics Coupling

Enables coupling of temperature, pressure, and chemical fields

In-Situ Monitoring

Real-time monitoring via temperature and pressure control modules

Non-Destructive & Fast

Enables rapid detection within seconds or minutes without damaging the sample

Specifications

Magnetic Field Strength: 0.3T ± 0.03T

Sample Loading Direction: Horizontal / Vertical

Magnet Type: C-Shaped Open Design

Field Homogeneity: ≤50 ppm

Max Sample Size: Ø150mm × H100mm

Key Features

1. Open C-Shaped Design for Effortless Sample Loading

Specifically built for large samples, compatible with core diameters from 25 mm to 150 mm

2. High-Precision Thermostatic Probe & Advanced Gradient System

Ensures stable and reliable data acquisition with enhanced functionality and imaging quality

3. Rich Accessory Options

Multiple core holders and sample chambers

Supports simulation of real-world conditions (temperature, pressure, fluids, gases, etc.)

Functionalities

T₁/T₂ Relaxation Spectrum Measurement, T₁/T₂/Proton Density Weighted Imaging

Application of Temperature, Pressure, and Fluid Fields (requires accessories)

Applications

1. Structural Characterization

Porosity Measurement
Pore Size Distribution
Layered Pore Size Distribution
Low-Temperature Nano-Pore Analysis

2. Moisture Content

Moisture Content Determination
Soil Freezing/Thawing Mechanism Research
Layer-Specific Moisture Analysis
Microwave Melting Mechanism of Permafrost
Unfrozen Water Content Measurement

3. Moisture Distribution & Dynamic Migration

Formulation/Additive Studies
Moisture Dynamic Migration
Hydration Monitoring in Cement-Based Materials
Pore Water Types and Distribution
Multi-Field Coupling Experiments (T/P/Fluid)
Soil-Water Phase Change in Freeze/Thaw Conditions
Curing Process Study (Water, CO₂, etc.)
Capillary Imbibition Analysis
Dynamic Analysis of Water Bleeding

4. In-Line Damage & Fracture Development

Non-Destructive Fracture Development Analysis
Heterogeneity Assessment of Microstructures
Rock Blasting/Stress-Induced Damage
Thermal or Freeze-Thaw Damage
Acid/Salt Corrosion Damage
Triaxial Compression Damage Analysis

NMR-Based Study on Triaxial Compression Damage Behavior of Marble

Nuclear Magnetic Resonance and Thermal Damage

Microscopic Pore Structure Evolution of Alkali-Activated Slag Mortar under Accelerated Carbonation

Micromechanism of Structural Degradation in Sandstone under Wet–Dry Cycles

Integration of Low-Field NMR Technology with Digital Core Analysis

Study on the Pore-Scale Distribution of Diesel in Contaminated Silty Soil

Investigation of Early-Stage Micropore Structure in CaO-Based Shrinkage-Compensating Cementitious Materials Using NMR Technology

MacroMR Series – Large-Bore NMR Imaging and Analysis System

Published Papers:

Lu Y , Wang L , Ge Z , et al. Fracture and pore structure dynamic evolution of coals during hydraulic fracturing[J]. Fuel,2020, 259:116272.

Gan Q , et al. Effects of heating temperature on pore structure evolution of briquette coals[J]. Fuel, 2021, 296(2):120651. Chaohui L , Zhengfu N , Mingqiang C , et al. Experimental study of boundary condition effects on spontaneous imbibitionin tight sandstones[J]. Fuel, 2019, 235:374-383.

Bing W A , et al. Adsorptive behaviors of supercritical CO2 in tight porous media and triggered chemical reactions with rock minerals during CO2-EOR and -sequestration[J]. Chemical Engineering Journal, 381(C):122577-122577.

Feng Wang; Yanbin Yao; Zhiang Wen,et,al. Effect of water occurrences on methane adsorption capacity of coal: A comparisonbetween bituminous coal and anthracite coal. Fuel, 2019, 266-285

Yunkai Ji, Jian Hou, Guodong Cui et al. Experimental study on methane hydrate formation in a partially saturatedsandstone using low-field NMR technique. Fuel, 2019, 251,82-90.

Zhang X , Wei B , You J , et al. Characterizing Pore-level Oil Mobilization Processes in Unconventional Reservoirs assisted by State-of-the-Art Nuclear Magnetic Resonance Technique[J]. Energy, 2021(24):121549.

Jie Lai, Kun Wang, Hangyu Zhou，et,al. Variation of Limestone Pore Structure Under Acidizing and Wormhole PropagationVisualization Using NMR[J]. Society of Petroleum Engineers.2020.

Caili Dai, Rui Cheng, Xin Sun, et al. Oil migration in nanometer to micrometer sized pores of tight oil sandstone duringdynamic surfactant imbibition with online NMR. Fuel 2019, 245: 544-553.

Pseudo-Triaxial Module

T₁/T₂ Relaxation Spectrum Measurement、T₁-, T₂-, and Proton Density-Weighted Imaging

Layered T₂ Spectra Analysis; Layer-Specific Signal Quantification under Applied Temperature, Pressure, Fluid, and Stress Fields (with accessory support required)

Variation of Internal Water Distribution in Rock under Different Confining and Axial Pressures

High-Temperature and High-Pressure Module

A Variety of Modular Attachments

High-Precision Thermostatic Probe for Variable Temperature and High-Pressure Simulation

More Stable Data Acquisition

Low-Temperature and High-Pressure Module

A Stable Low-Temperature Environment Down to –30 °C

High Data Accuracy – Ideal for Permafrost and Freeze–Thaw Process StudiesMoisture MigrationSubtle Signal Changes Induced