Atmospheric pressure discharging multi-mode conversion apparatus

The invention discloses an atmospheric pressure discharging multi-mode conversion apparatus. The atmospheric pressure discharging multi-mode conversion apparatus comprises a high-voltage power supply,a resistor, a cavity body, a high-voltage electrode, a ground electrode and a micrometer caliper, wherein one end of the high-voltage electrode is connected with the output end of the high-voltage power supply through the resistor; the ground electrode is placed in the cavity body; the spacing between the high-voltage electrode and the ground electrode can be adjusted through the micrometer caliper; by adjusting the spacing between the high-voltage electrode and the ground electrode, conversion of multiple discharging modes can be realized between the high-voltage electrode and the ground electrode, such as corona discharge, silk-form discharge, similar glow discharge, glow discharge and spark discharge; and by virtue of the apparatus, the problems of instable and discontinuous discharging mode and incapability o