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闪电通道温度测量方法

DOI: 10.13336/j.1003-6520.hve.2015.05.017, PP. 1544-1549

Keywords: 闪电光谱,通道温度,原子光谱,局部热力学平衡模型,闪电电流,雷电冲击平台

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Abstract:

针对自然界闪电通道温度特性研究的诸多局限性,通过将原子光谱理论与局部热力学平衡(LTE)模型应用于闪电光谱的研究,采用雷电冲击平台(ICGS)模拟闪电通道放电,对模拟闪电通道中红外波段光谱(930nm)与可见光波段光谱(648.2nm)的光谱能量进行计算分析。分析结果为当模拟闪电通道电流为5~50kA时,红外波段与可见光波段谱线的发光强度峰值与闪电通道电流呈正相关;闪电通道温度在6140.8~10424K范围内变化,闪电通道内电流与其内温度具有较好的指数函数关系,且此函数与自然界中闪电通道电流和闪电通道温度关系具有较好的一致性。

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