Method for generating a pulsed magnetic field and associated device

A method for generating a pulsed magnetic field, the method being implemented using a device comprising an electrical supply, a switch, a capacitor and a coil having a first extremity connected to an electrical ground and a second extremity, the capacitor comprising a first electrode connected to the electrical ground and a second electrode, the switch being able to commute between a first configuration wherein the second electrode and the second extremity are electrically insulated and at least one second configuration wherein the second electrode and the second extremity are electrically connected, the capacitor, the switch and the coil forming a series circuit when the switch is in the second configuration, the series circuit being underdamped, the method comprising:

• a first step for charging the second electrode with a first electrical charge having a first polarity, the switch having the first configuration,
• a first step for discharging the first electrical charge through the coil to generate a first pulse of magnetic field, the switch having the second configuration,
• a second step for charging the second electrode with a second electrical charge having a second polarity different from the first polarity, the switch having the first configuration, and
• a second step for discharging the second electrical charge through the coil to generate a second pulse of magnetic field, the switch having a second configuration.