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根据等离子体物理学和光谱学理论，建立了一种新的电弧等离子体的测试方法─—光谱多线解析法，可对未知配比的混合电弧等离子体的成分、温度甚至压力的空间分布作同时测定。文中阐明了这一方法和相应的实验装置的原理。测定了氩氢混合电弧等离子体中的氩氢含量及对应的温度、压力分布。对实验结果作了误差分析和验证。
According to the theory of plasma physics and spectroscopy, a new test method of arc plasma ─ ─ spectral multi-line analytical method was established, which can make the composition, temperature and even the spatial distribution of pressure of unknown mixed plasma arc plasma Simultaneous determination. The paper illustrates the principle of this method and the corresponding experimental setup. The Argon-Hydrogen content in argon-argon mixed arc plasma and its corresponding temperature and pressure distribution were measured. The experimental results made error analysis and verification.