A Halbach array is a special arrangement of permanent magnets positioned in a specific way to generate or influence a targeted magnetic field pattern. The operation of this array is based on the systematic alignment of the poles of the permanent magnets. On the reinforced side of the array, the poles are oriented to reinforce each other, resulting in an extremely strong magnetic field. On the opposite side, the poles of the magnets are arranged to cancel each other out, leading to a weak or even nonexistent magnetic field. This design is used in various applications where a strong magnetic field in a specific direction is needed, while a weak or no magnetic field is desired on the other side.

Manufacturing a high-quality Halbach array requires extensive knowledge and experience in handling strong magnets. Quality is determined by factors such as the precision of the magnetization direction, the strength of individual magnets, the arrangement method, as well as the connection and attachment of the magnets. These factors are crucial for the performance and efficiency of a Halbach array and are therefore important quality considerations in its production.