A semicombustible plasma generator (SCPG), including a special tubular semicombustible medium, is introduced to improve the discharge property of the plasma generator and enhance the electrothermal–chemical (ETC) launch efficiency. The new structure of SCPG is mixed with both capillary plasma generator (CPG) and discharge rod plasma generator (DRPG). After the design and simulation, the electrical characteristics of this SCPG are discussed with both static test and dynamic tests. Results show that the SCPG is a resistive load with low inductance, which has stable and consistent electrical parameters. With the increase of discharge voltage, the peak current of SCPG is increased and the equivalent resistance of SCPG is decreased. The peak voltage is nearly 1.3 kV and the pulse current bottom width is more than 3.5 ms. Compared with the DRPG, the load characteristics of SCPG are in a stable and consistent trend during the pulsed discharge process as the same as DRPG. Also, the SCPG has longer stable working times and better stable working parameters and performance. This SCPG will promote the interaction between the plasma and propellants in the chamber.

中文翻译：

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ETC 发射器用半燃等离子体发生器的脉冲放电特性


引入一种包含特殊管状半燃介质的半燃等离子体发生器（SCPG），以改善等离子体发生器的放电性能并提高电热化学（ETC）发射效率。 SCPG的新结构混合了毛细管等离子体发生器（CPG）和放电棒等离子体发生器（DRPG）。经过设计和仿真后，通过静态测试和动态测试对该SCPG的电气特性进行了讨论。结果表明，SCPG为低电感阻性负载，电参数稳定一致。随着放电电压的增加，SCPG的峰值电流增大，SCPG的等效电阻减小。峰值电压接近1.3 kV，脉冲电流底部宽度超过3.5 ms。与DRPG相比，SCPG的负载特性在脉冲放电过程中与DRPG一样处于稳定一致的趋势。并且SCPG具有更长的稳定工作时间和更好的稳定工作参数和性能。该 SCPG 将促进腔室中等离子体和推进剂之间的相互作用。