| 摘要 |
PURPOSE: A dual sensor magnetic field shielding device and a magnetic field shielding method using the same are provided to implement automatic shielding by utilizing two types of magnetic sensors. CONSTITUTION: More than one or two cancellation coil is installed, respectively. The installation is perpendicularly installed to the x, y, and z-axis of the outer surface of a shielding space. One attenuation verification sensor minimizes a magnetic field. Four to eight external magnetic sensors are symmetrical around the attenuation verification sensor. A controller receives a magnetic field signal. |
