SPOT TYPE ATMOSPHERIC PRESSURE PLASMA DEVICE

    公开(公告)号:US20230377847A1

    公开(公告)日:2023-11-23

    申请号:US17664224

    申请日:2022-05-20

    Abstract: A spot type atmospheric pressure plasma device includes a metal casing, a metal electrode, a dielectric layer, and a gas channel. The metal electrode is disposed in an inner space of the metal casing. The dielectric layer is disposed in the inner space and surrounds an outer side surface of the metal electrode. A central area of a bottom of the dielectric layer has a plasma jet, and a bottom of the metal electrode is adjacent to the plasma jet. The gas channel includes a first section, a second section, and a third section. The first section passes through the metal casing and the dielectric layer. The second section is connected to the first section and extends between the dielectric layer and the outer side surface. The third section is connected to the second section, and is configured to direct a working gas to the plasma jet.

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