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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