Gradient Magnetic Field Coils

Gradient magnetic field coils can generate spatially linearly varying magnetic fields. A typical Maxwell coil consists of two coils with currents flowing in opposite directions, the radius of which and the distance between them are theoretically determined. Maxwell coils exhibit extremely high magnetic field linearity and power efficiency. Other complex gradient magnetic field coils can be custom-designed using finite element analysis.

It can also be a multi-electromagnet, so that the magnetic field produces a uniform radial gradient magnetic field, the magnetic field is zero in the radial section, the center is evenly increasing magnetic field around the area as a standard circle, such as a wide range of magnets used in accelerators to focus and adjust charged particle beams.

Gradient magnetic field coils are used in the design of gradient magnetic fields to achieve one-dimensional, two-dimensional, and three-dimensional gradient magnetic fields. The usual method is to make two coaxial coils connected in series, set the best coil spacing, get the best gradient linearity of the magnetic field axis direction, and also adjust the appropriate coil distance, and get different sizes of gradient magnetic field. There are also applications where gradients of the same magnetic field direction are required. This need can be achieved by combining magnetic fields.

Features

• Gradient coils can generate spatially linearly varying magnetic fields.
• The magnitude of the gradient can be changed by adjusting the current.
• The spatial position of the gradient can be changed by adjusting the current distribution.
• Suitable for traction driving of magnetic particles.
• Suitable for imaging equipment based on magnetic principles.

Applications

• Physical Experiments
• Magnetic Imaging
• Industrial Inspection
• Sensor Calibration
• Magnetic Drive

Case 1

High gradient field electromagnetic coil module

Case 2

Open Space 3D H&M Composite Coil 3DXHC50-01