Various microwave-sustained, atmospheric-pressure plasma torches have been developed, investigated and applied over the last few decades. To avoid some of their shortcomings, we have designed a novel torch termed TIAGO (Torche a Injection Axiale sur Guide d'Ondes, in French). Its main advantages are simplicity, smooth impedance matching (low sensitivity to changes in operating conditions) and a short gas channel to prevent vapour condensation. Furthermore, it is possible to arrange TIAGOs in arrays to form a compact torch system which can be supplied, with equal distribution of power between plasma flames, from a single waveguide. This unique feature makes the new device particularly suitable when high gas throughputs or sequential processing are required. We describe the design, electrodynamic characteristics and experimental investigation of various torch arrangements based on the TIAGO principle, operated at 2.45 GHz with powers of a few hundred watts up to 2-3 kW per nozzle. [References: 17]
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机译:在过去的几十年中,已开发,研究和应用了各种微波可维持的大气压等离子体炬。为了避免它们的某些缺点,我们设计了一种新颖的割炬,称为TIAGO(法文的《指导》上的《 Torche a Injection Axiale sur Guide d'Ondes》)。它的主要优点是简单,阻抗匹配流畅(对工作条件变化的敏感性低)以及较短的气体通道可防止蒸汽凝结。此外,可以将TIAGO排列成阵列,以形成紧凑的割炬系统,该割炬系统可以在等离子火焰之间以相等的功率分布从单个波导提供。这种独特的功能使该新设备特别适合需要高气体通过量或顺序处理的情况。我们描述了基于TIAGO原理的各种割炬装置的设计,电动特性和实验研究,这些割炬装置以2.45 GHz运行,功率为数百瓦,每个喷嘴的功率为2-3 kW。 [参考:17]
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