MAGNETIC BODY FOR DETECTING UNDERGROUND BURIED BODY

摘要

PURPOSE: A magnetic body for detecting an underground buried body is provided to detect accurately an underground buried body by adhering a ferromagnetic on an upper surface of anisotropic ferrite magnet to increase magnetic flux density. CONSTITUTION: An anisotropic ferrite magnet(220) has a shape of a circular plate of a predetermined thickness. A ferromagnetic(210) is adhered on an upper surface of the anisotropic ferrite magnet(220). A diameter of the ferromagnetic(210) is equal to the diameter of the anisotropic ferrite magnet(220). A protective cover(230) is adhered to the anisotropic ferrite magnet(220) and the ferromagnetic(210). The protective cover is formed by a plastic material such as an ABS resin. The ferromagnetic(210) is formed by a ferromagnetic metal such as steel or nickel. The ferromagnetic(210) is used for expanding a magnetic force from the anisotropic ferrite magnet(220) to an upper side. The protective cover(230) is used for protecting the anisotropic ferrite magnet(220) and the ferromagnetic(210) from an external impact or pressure or moisture.