helmholtz-coils
3DXHDC10-1coil-4
3DXHDC10-1coil-2
3DXHDC10-1coil-3

Equal Diameter 3D Helmholtz Coil

There is also a common application that generates an AC magnetic field. Since the resistance and inductance of the three axes are the same, the same AC power supply can be used for three-axis switching to control the magnetic field with a voltage.
The maximum magnetic field in each dimension of the three-dimensional equal-diameter coil can be 1Gs ~ 5Gs.

 

Specification Parameter of Equal Diameter 3D Helmholtz Coil

Model Diameter
(mm)
Center magnetic
field (Gs)
Uniformity 
%
Uniform zone sphere
diameter (mm)
Each dimension
power range (W)

Weight

(Kg)

3DXHDC10-1 200 1 0.1 25 2 1.5
1 50
3DXHDC12.5-1 250 1 0.1 35 3 2.5
1 60
3DXHDC15-1 300 1 0.1 40 4 3
1 70
3DXHDC17.5-1 350 1 0.1 50 5 3.5
1 85
3DXHDC20-1 400 1 0.1 55 5 4.6
1 100
3DXHDC22.5-1 450 1 0.1 60 6 9.8
1 110
3DXHDC25-1 500 1 0.1 70 7 11
1 120
3DXHDC30-1 600 1 0.1 85 9 16
1 140
3DXHDC35-1 700 1 0.1 100 11 20
1 170
3DXHDC40-1 800 1 0.1 110 15 24
1 200
3DXHDC45-1 900 1 0.1 120 18 32
1 220
3DXHDC50-1 1000 1 0.1 140 20 40
1 250

 

Typical Cases

3-axis-equal-diameter-coil-5

3DXHDC12.5-1

 

Three-dimensional spherical coil diameter of 250mm, 1Gs per dimension;
Uniform zone diameter: 35mm;
Uniformity: 0.1%;
Power supply per dimension: 3W;
Use in a shielded cylinder(diameter:300mm).

3-axis-equal-diameter-coil-2

3DXHDC50-1

 

The diameter of the three-dimensional equal-diameter coil is 1 meter;
The highest magnetic field strength of one axis is 100,000 nT; The 1-2nT adjustment step can be realized with the measurement and control software and the high precision control field power supply.
This system is used to simulate the reproduction of a geomagnetic field, and it can also be used for active shielding of a geomagnetic environment.

Uniform zone: Φ125*125mm;
Uniformity: 0.1%;
Power Supply: 20W.

3-axis-equal-diameter-coil-1

3DXHDC15-1

 

Three-dimensional equal diameter is 300mm;

Generates a low-weak magnetic field of 125KHz for the detection of remote car keys;
The three-dimensional coil constant is the same, and the resistance and the number of turns are the same;
Uniform zone: Φ70*70mm;
Uniformity: 1%.

3-axis-equal-diameter-coil-4

3DXHDCF15-1

 

Three-dimensional equal diameter is 300mm;

Generates a low-weak magnetic field of 125KHz for the detection of remote car keys;
The three-dimensional coil constant is the same, and the resistance and the number of turns are the same;
Uniform zone: Φ70*70mm;
Uniformity: 1%.W.

 

Equal Diameter 3D Helmholtz Coil is designed exclusively by Dexinmag company. Its characteristics are: the three dimensions of the coil diameter is equal, the same number of turns, the same diameter; uniform area volume, small size, large internal space, the overall frame of non-magnetic metal-free, especially suitable for use in the shielding tube.
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