| 摘要 |
PURPOSE:To provide the title apparatus which conducts floor demagnetization automatically, simply, and economically and conducts floor magnetization even after a building is completed. CONSTITUTION:An unmanned carrier 1 running along a floor face 4 is loaded with a magnetic sensor 7, a demagnetization coil 8, an alterating power source 10 making alterating current flow through the coil, and a controller 12 which inputs magnetic sensor signal from the floor by the magnetic sensor 7 to control the alterating power source 10. |
