Adjustable magnetic field generating device based on permanent magnet

The invention relates to the field of adjustable magnetic field generating devices, in particular to an adjustable magnetic field generating device based on a permanent magnet, which comprises a shell, a static magnet of an axial magnetizing magnet is mounted on the side wall of one side of the shell, and a movable magnet of the axial magnetizing magnet is mounted on the side wall of the other side of the shell. The magnetizing directions of the static magnet and the moving magnet are opposite, and an adjusting mechanism is installed on the shell and connected with the moving magnet; according to the invention, the magnetic field generating device is miniaturized and light, and is suitable for on-site verification and calibration of gauss meters with table-type and fixed structures. 本申请涉及可调磁场发生装置领域，尤其是涉及基于永磁体的可调磁场发生装置，包括壳体，所述壳体一侧的侧壁上安装有轴向充磁磁铁的静磁铁，所述壳体另一侧的侧壁上安装有轴向充磁磁铁的动磁铁，所述静磁铁与动磁铁充磁方向相反，所述壳体上安装有调节机构，所述调节机构与动磁铁相连；本申请使磁场发生装置小型化、轻量化，适用于针对台式、固定式结构的高斯计进行现场检定校准。