Magnetic Testing
DX-2012R Magnetic Field Mapper
High-precision three-axis magnetic field mapping system for evaluating magnetic field distribution, magnetisation accuracy and magnetic ring quality.
Product Overview
The DX-2012R series Magnetic Field Mapper is a high-precision 3D magnetic field mapping system used for evaluating magnetic field distribution and magnetisation accuracy.
The system can generate detailed reports including:
- XY coordinate mapping
- Polar coordinate analysis
- 3D magnetic field distribution
- Relative fundamental wave harmonic analysis
It is widely used for quality inspection of:
- Permanent magnets
- Permanent magnet motor stators and rotors
- DC magnetic field coils
- Electromagnets
The DX-2012R surface magnetic field distribution measuring instrument developed by Dexinmag is an essential tool for accurate evaluation of magnet magnetisation accuracy and quality inspection of magnetic rings.
This three-axis magnetic field mapping system can be equipped with multiple testing fixtures including:
- Three-dimensional test probes
- Rotating platforms
- Loading platforms
The system features high concentricity design and high-precision probe return, with a scanning space of 800 mm × 800 mm × 800 mm.
Product Models
| Product Name | DX-2012RA | DX-2012RB | DX-2012RC | DX-2012RD |
|---|---|---|---|---|
| Two-dimensional analysis | ✓ | ✓ | ✓ | ✓ |
| Rectangular coordinate display | ✓ | ✓ | ✓ | ✓ |
| Polar coordinate display | ✓ | ✓ | ✓ | ✓ |
| Axial 3D distribution | ✓ | ✓ | ✓ | ✓ |
| Oblique charging test | ✓ | ✓ | ✓ | |
| One-dimensional plane description | ✓ | ✓ | ||
| Three-dimensional magnetic field description | ✓ |
Measurement Principle
The magnetic field distribution measurement system mainly consists of:
- Industrial computer with measurement software
- Motion control system
- Data acquisition system
The measurement process works as follows:
- The industrial computer sends commands to the motion control system.
- The system moves according to the preset trajectory.
- The data acquisition system collects magnetic field data in X, Y and Z directions using Hall sensors.
- The data is transmitted to the computer.
- The software processes the data and generates a 3D magnetic field distribution map.
Features
- Three-axis electrically controlled mobile platform
- Aluminum alloy platform structure (customizable size)
- Stepper motor return precision up to ±0.01 mm
- Step resolution 0.01 mm
- Taiwan three-jaw chuck with concentricity better than 0.05 mm
- Rotation angle resolution 0.01°
- Rotation return uncertainty ±0.005°
- Test speed 30–60 seconds per cycle
- Multiple automatic measurement ranges: 0.2k / 0.4k / 1k / 2k / 4k / 10k / 20k Gs
Measurement performance:
- Accuracy: 1.0%
- Repeatability: 0.3%
- Resolution: 0.1 Gs below 400 Gs
Calibration:
The system is equipped with a standard magnetic field calibration module:
- Magnetic field: 1000 Gs ±5 Gs
- Calibration accuracy: 0.5%
Stepper Motor Drive Technical Parameters
| Parameter | X Axis | Y Axis | Z Axis |
|---|---|---|---|
| Displacement distance | 200 mm | 200 mm | 150 mm |
| Step resolution | 0.01 mm | 0.01 mm | 0.01 mm |
| Return uncertainty | ±0.01 mm | ±0.01 mm | ±0.01 mm |
| Maximum speed | 20 mm/s | 20 mm/s | 20 mm/s |
Drive System Parameters
- Power supply: 12V – 40V DC
- Capacity: 0.1 KVA
- Output current: Peak 2.6 A / phase
- Drive mode: Space vector bipolar constant current drive
- Excitation method: 16 subdivision modes available
- Insulation resistance: >100 MΩ
- Insulation strength: 0.5 KV (1 minute test)
Rotating Platform Specifications
- Table diameter: 100 mm
- Transmission ratio: 180 : 1
- Resolution (8 subdivisions): 0.00125°
- Repeat positioning accuracy: < 0.005°
- Maximum rotation speed: 25° / s
- Stepper motor: 2-phase
- Maximum static torque: 40 Ncm
- Maximum center load: 50 kg
Test Result Examples
Multistage Magnetic Ring Test Result
3D Magnetic Field Distribution Result
