Abstract：The changing law between interelectrode current, discharge characteristic and jet characteristic of plasma ignitor under different inlet Ar pressure and working current was researched by adopting self-made plasma ignitor. Still, four channels CCD spectrometer was adopted to measure the spectrum characteristic at the exit of ignitor and electron temperature of plasma was calculated according to the spectrum characteristic.The results show that the interelectrode current gradually reduced with rising inlet Ar pressure; The jet length of plasma ignitor firstly increased then reduced with rising inlet Ar flowrate, and also increased with rising working current; The working current of plasma ignitor reduced with rising inlet Ar flowrate, and increased with rising source output current; the electron temperature of plasma ignitor jet increased with rising working current and reduced with rising Ar flowrate. The research results are of certain guidance meanings and reference values for the practical application of plasma ignition system in aeroengine.
Key words：Plasma;Interelectrode current;Jet length;Electricity characteristic;Spectrum characteristic;Electron temperature
王 峰，何立明，兰宇丹，杜宏亮. 直流电压等离子体点火器点火特性研究[J]. 光谱学与光谱分析, 2011, 31(09): 2503-2507.
WANG Feng，HE Li-ming，LAN Yu-dan，DU Hong-liang. Study of Ignition Characteristic of DC Voltage Plasma Ignitor . SPECTROSCOPY AND SPECTRAL ANALYSIS, 2011, 31(09): 2503-2507.
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