Square Helmholtz Coil Introduction
The square Helmholtz coil is a highly practical magnetic field device: it is applied in various fields such as magnetic field calibration, electromagnetic compatibility testing, installation and maintenance of magnetic control systems, and research on magnetization phenomena. It can simulate the combination of vertical, horizontal, and rotational magnetic fields. This is very useful in the installation and maintenance of magnetic control systems, as it can accurately reconstruct the direction of the magnetic field and enable the magnetic control system to achieve precise control objectives. In addition, square Helmholtz coils can also be used to measure the strength and precise verticality of magnetic fields, which is very suitable for magnetic field calibration and electromagnetic compatibility testing.
Installing a square Helmholtz coil is also a very simple task. It has only two components, one consisting of wires on a support frame, and the other consisting of a fixed coil wrapped around the outer surface. Simply connect the power supply and load to complete the installation. However, in order to achieve the best results, it is necessary to ensure the matching of the load voltage and the coil, otherwise the best magnetic field accuracy will not be achieved.
Square Helmholtz CoilKey Features & Advantages:
✅ Multi-directional Simulation: Simulates vertical, horizontal, and rotational magnetic fields-ideal for testing and tuning magnetic sensors or systems.
✅ High Accuracy & Uniformity: Achieves a high level of magnetic field uniformity at the center, essential for precise measurements and repeatable experiments.
✅ User-Friendly Design: Two-part assembly-includes a frame-mounted wire coil and a fixed external winding. Simple plug-and-play installation.
✅ Customizable Models: Wide range of models with various side lengths, field strengths (up to 50 Gauss), and uniform areas to meet specific application needs.
✅ Space-Efficient: No need for external field shaping components, making it perfect for limited lab spaces.
✅ Strong, Safe Construction: Made from durable glass fiber reinforced plastics (not ordinary plastic), improving safety during shipping and use.






Drawing of 3D square Hlemholtz Coil

Specification Parameter of square Helmholtz Coil Specification Parameter
| Model | Side length (cm) | Central field (Gs) | Uniformity | Homogeneity cube side length (cm) | Each dimension power range | One dimensional weight (Kg) | Three dimensional weight (Kg) |
| % | |||||||
| DXF150-2 | 300 | 2 | 5 | 100 | 540 ~ 680 | 84 | 280 |
| 1 | 75 | ||||||
| DXF100-2 | 200 | 2 | 0.5 | 40 | 260 ~ 320 | 38 | 150 |
| 0.1 | 28 | ||||||
| DXF75-10 | 150 | 10 | 0.05 | 15 | 600 ~ 800 | 90 | 300 |
| 0.01 | 10 | ||||||
| DXF75-2 | 150 | 2 | 5 | 50 | 150 ~ 180 | 21 | 70 |
| 1 | 37.5 | ||||||
| DXF60-10 | 120 | 10 | 0.5 | 24 | 500 ~ 620 | 68 | 230 |
| 0.1 | 17 | ||||||
| DXF60-2 | 120 | 2 | 0.05 | 12 | 100~120 | 18 | 60 |
| 0.01 | 8 | ||||||
| DXF50-20 | 100 | 20 | 5 | 33 | 600 ~ 800 | 72 | 260 |
| 1 | 25 | ||||||
| DXF50-10 | 100 | 10 | 0.5 | 20 | 350 ~ 500 | 47 | 155 |
| 0.1 | 14 | ||||||
| DXF50-2 | 100 | 2 | 0.05 | 10 | 70 ~ 100 | 15 | 50 |
| 0.01 | 6.6 | ||||||
| DXF40-50 | 80 | 50 | 5 | 2.6 | 1000 | 98 | |
| 1 | 20 | ||||||
| DXF40-10 | 80 | 10 | 0.5 | 16 | 200 ~ 320 | 30 | 110 |
| 0.1 | 11 | ||||||
| DXF40-2 | 80 | 2 | 0.05 | 8 | 45 ~ 80 | 12 | 40 |
| 0.01 | 5.3 |
Typical cases
|
Model |
Parameters |
Reference picture |
|
3DXF16-1 |
Three-dimensional square coil Magnetic field intensity in each dimension: 1Gs; Magnetic field center uniformity: 1 * 10-3; Uniform area: 4 5* 45 * 45mm; Three-dimensional equal diameter side length: 320mm; |
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3DXF17.5-50 |
Three-dimensional square coil Center magnetic field strength: 50Gs; Magnetic field center uniformity: 1*10-3; Uniform area: 50 * 50 * 50mm; The minimum average side length: 350mm;Uniformity: 0.1%; Power Supply: 20W. |
|
|
DXF120-10 |
One-dimensional square coil Side length: 2400mm; Industrial frequency: 50Hz; Magnetic field: 10Gs; Uniform area: 600 * 600 * 600mm; Uniformity: 1% |
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3DXF120-5 |
Three-dimensional square coil Center magnetic field strength: 5Gs; Magnetic field center uniformity: 1 * 10-3; Uniform area: 320 * 320 * 320mm; Side length: 2400mm;. |
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3DXF40-15 |
Three-dimensional square coil Center magnetic field intensity: 15Gs; Magnetic field center uniformity: 1 * 10-3; Uniform area: 120 * 120 * 120mm; Side length: 800mm; |
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3DXF45-1 |
Three-dimensional square coil Center magnetic field strength: 1.0Gs; Magnetic field center uniformity: 1*10-3; Uniform area: 135 * 135 * 135mm; Side length: 900mm; |
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DX4F90-5 |
One-dimensional coil Center magnetic field strength: 5 Gs; Uniformity of the magnetic field: ΔH/H=5*10-3; Uniform zone: Φ500*1000mm; Side length: 1800mm; Power Supply: 540W (6A90V) |
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