SPACE STRUCTURE FOR UNIFORMIZING MAGNETIC FIELD

摘要

PURPOSE: A space structure is provided to protect electronic devices and human body from bad influence of geomagnetic disturbance by uniformizing magnetic field and suppressing geomagnetic disturbance in an accurate manner. CONSTITUTION: A space structure for shielding local geomagnetic disturbance caused by the structure of earth crust, magnetic substance and electric appliances, comprises a magnetic field focusing member(1) forming the bottom surface of the space structure; one or more magnetic field distribution members(2) extended from the magnetic field focusing member and defining an inner space of the space structure; and an open portion(3) formed at the side or upper surface of the space structure. The magnetic field focusing member is made up of a material containing magnetic substance having characteristics of magnetic permeability of 10 or higher at a temperature range of -50°C to 150°C, coercive magnetic field of 1.0 oersted or lower, saturated magnetization of 10 gauss or higher, and curie temperature of 50°C or higher. The magnetic field distribution member is made up of a material containing magnetic substance having a magnetic permeability of 1.2 to 1,000,000 at a temperature range of -50°C to 150°C.