【摘要】 利用自行设计的实验系统在实验室对微孔陶瓷管产生的气泡及气泡幕的光散射特性进行了研究和分析,并对单个气泡的光散射特性进行了计算机模拟.实验结果表明,理论结果与实验结果基本相符.通过实验可得到气泡的尺度及速率等物理特性.从气泡幕光散射信号的Fourier变换可以看出,信号的频率主要集中在0~1000Hz范围内,在高频部分的微小波动由噪声引起,信号频率随时间没有明确的变化趋势,表明气泡幕光散射信号是随机信号.更多还原

【Abstract】 The optical scattering specialty of bubbles and bubble films produced by ceramics pipe with micro_hole is studied in laboratory.The optical scattering specialty of a single bubble is stimulated on computer.The results indicate that the theoritic results conform to experiment results from which the bubble size and its velocity are derived.Fourier transformation of scattering signal of bubble film indicates,signal frequences are located mainly in 0～1000 Hz,there is little fluctuation at high frequency is evoked by noise,signal frequency has not clear tends with time all of which account for the randomness of scattering signals of bubble film.更多还原