| 摘要 |
A resistor-capacitor (“RC”) plasma jet device, produces a safe plasma for human contact. In an example embodiment, the RC plasma jet device includes a power supply, a gas supply and an electrode. A working gas can be injected into the gas inlet of the electrode from the gas supply. The electrode, is connected to the power supply through a resistance and a capacitance. The electrode may be a hollow tube with a gas inlet and a gas outlet. The device can be portable, safe, easy to operate, and inexpensive. By changing the values of the capacitor (s) and resistor (s), and using different excitation sources and working gas, the intensity and gas temperature of the plasma jet can be adjusted. When the gas temperature is close to room-temperature, the plasma jet is touchable by a human hand without an arcing risk. The plasma can also be ejected to an open space by different geometric shapes or configuration in various directions and the device can be modified or applied to many large-scale applications at room-temperature and atmospheric pressure.
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