Journal of Visualization ( IF 1.7 ) Pub Date : 2021-07-15 , DOI: 10.1007/s12650-021-00763-1 Yu. A. Barinov 1
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Abstract
The background oriented schlieren (BOS) method is applied for visualization of gas flows. This method allows you to get not only quality, but also quantitative information about the investigated object, such, for example, as temperature of gas medium. The features of using the BOS method for determining the gas temperature of small axisymmetric plasma objects are considered. The BOS method is easy to implement compared to the classical schlieren method. Using the example of discharge with liquid non-metallic electrodes, the requirements for measurement accuracy and spatial resolution are determined. A method for calculating the temperature based on data obtained using BOS is described. The calculation method was checked using a test object. A possible processing error was found and its cause was shown. Another method of image processing that reduces the error is proposed.
Graphic abstract
中文翻译：
背景导向纹影法研究小轴对称等离子体的特点
摘要
背景导向纹影 (BOS) 方法用于气体流动的可视化。这种方法不仅可以让您获得有关被调查对象的质量信息，还可以获取定量信息，例如气体介质的温度。考虑了使用BOS方法确定小型轴对称等离子体物体的气体温度的特点。与经典的纹影方法相比，BOS 方法易于实现。以液体非金属电极放电为例，确定了对测量精度和空间分辨率的要求。描述了一种基于使用 BOS 获得的数据计算温度的方法。使用测试对象检查计算方法。发现了可能的处理错误并显示了其原因。
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