Abstract:

Langmuir probe array and spectroscopy are employed to diagnose the plasma jet generated from a solid operation material plasma generator. The generator can perform steadily for 300s with the input power at 2kW. In that case, the maximum inner temperature is 800K, the electron density of plasma jet varies in the range of 10¹¹～10¹²cm^–3, and the electron temperature varies in the range of 1.5～3.5eV, respectively.

Key words: Plasma generator, Plasma diagnosis, Langmuir probe array, Emission spectrum

摘要：

利用朗缪尔探针和发射光谱两种诊断手段，测量了某固体工质等离子体发生器的喷流流场参数。结果表明，在输入功率为2kW时，发生器可持续稳定工作300s；发生器燃烧室内最高温度为800K。稳定工作时，发生器壳体结构正常，没有发现损毁现象；等离子体喷流的电子密度为10¹¹～10¹²cm^–3量级，电子温度为1.5～3.5eV。

关键词: 等离子体发生器, 等离子体诊断, 朗缪尔探针阵列, 发射光谱