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Recommended Practice for Splash and Spray Evaluation (Stabilized: May 2011) 飞溅和喷雾评估推荐规程(稳定:2011年5月)
发布日期: 2011-05-17
本SAE推荐实施规程提供了测量湿路面上行驶车辆产生的飞溅和喷雾的一般指南。该指南描述了视频数字化和激光分析方法。视频数字化方法使用视频图像和黑白棋盘之间的对比度测量(当喷雾云叠加在它们上时),作为测量模糊喷雾的一种手段。激光法使用通过喷雾云的激光透射率作为测量手段。该实践的用户可以决定哪种方法最适合他们的需求。这两种方法之间没有隐含的关系,尽管预计试验车辆配置之间相对喷雾减少的排名大致相同。 除非另有说明,否则本文件中列出的所有章节均视为两种方法的通用部分。
This SAE Recommended Practice provides general guidelines for measuring the splash and spray produced by vehicles operating over wet pavements. The guidelines describe both the video digitizing and the laser methods of analysis. The video-digitizing method uses video images and contrast measurements between black and white checkerboards when a spray cloud is superimposed on them as a means of measuring the obscuring spray. The laser method uses laser transmittance through the spray cloud as the means of measurement. It is left to the users of this practice to decide which method is best suited to their needs. There is no implied relationship between these two methods, although it is expected that the ranking of relative spray reduction between test vehicle configurations would be approximately the same. All sections listed in this document are to be considered as common to both methods, unless otherwise noted.
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