Magnetic suspension based high voltage DC proof device

The invention discloses a magnetic suspension based high voltage DC proof device including a detection device, an insulation handle and a detection terminal. The detection device includes a proof head, a photoelectric pre-processing module, a processor module, a power module, a self-checking module, an alarm module and a Zigbee wireless transmission module. The proof head is connected with the photoelectric pre-processing module. The photoelectric pre-processing module, the self-checking module, the alarm module and the Zigbee wireless transmission module are all connected with the processor module. The detection terminal is also provided with a Zigbee wireless transmission module and is in wireless connection with the detection device through said Zigbee wireless transmission module. The proof head includes a support, a high voltage probe, a copper sheet, a rotary shaft, a rotor aluminum foil, a fixed aluminum foil, a polarizing grating, a laser source and a grating photocell. The device provided by the inve