介质管等离子体物理特性自动测量系统设计

Designing of Automatic Measuring System of Dielectric Tube Plasma's Physics Characteristics

中文关键词:  等离子体  朗缪尔双探针  数据采集

英文关键词:plasma  Langmuir double probe  data acquisition

中文摘要:

      根据朗缪尔双探针诊断方法，设计了一个等离子体特性自动测量系统，给出了系统设计的原理和实现过程。系统由电源电路、ARM控制器、FPGA、FIFO、高速ADC及USB控制器构成，可以提供等离子体测量所需的特定工作电压、实现对等离子体I V特性数据的同步测量，并可以对测量数据进行准确的高速传输。分析系统所采集数据得到了准确的等离子体I V特性、等离子体电子温度和离子密度。

英文摘要:

      Bases on Langmuir double probe diagnostics,an automatic measuring system of dielectric tube plasma's physics characteristics is designed,the principle and realization of system design are presented.The system is composed of electrical source,ARM controller,FPGA,FIFO,high speed ADC and USB controller,which can provide specific working voltage for the measurement of Plasma,and realize the synchronized measurement of plasma I-V characteristics and high speed transmission of the measurement data accurately.The plasma I-V characteristics,plasma electron temperature and ion density are via analysis of data acquired gotten by the system.