| 摘要 |
PROBLEM TO BE SOLVED: To provide a portable magnetizing-demagnetizing device capable of being transported at an arbitrary place such as a job site in a portable manner and enabling the works of the magnetizing and demagnetizing of a magnet at the arbitrary place. SOLUTION: The portable magnetizing-demagnetizing device ahs a battery 1 as a DC power supply, a DC-AC inverter 2 converting the DC voltage of the battery 1 into boosted AC voltage, a multiple-voltage rectifier circuit 4 rectifying and boosting the AC output voltage of the inerter 2, an energy storage capacitor 5 charged by the output voltage of the rectifier circuit 4, a coil 6 for magnetizing and demagnetizing, and a switching circuit 7 discharging the charged capacitor and making a current flow in one direction through the magnetizing-demagnetizing coil in the case of magnetization and making an alternating attenuation current flow through the coil in the case of demagnetization. |
