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随着环境保护科学与内燃机工程科学的发展,内燃机排气烟度的测量要求越来越普遍。目前已经使用的测量方法有下列几种:1.卡管感测法。由一带“柄”弓肜卡管,卡口两侧的管口处分别安装聚光灯、光电池,组成烟度传感器,再通过“柄”端插头连座用导线与灯光电源和光电池指示电表相联接。表头按0～100%分度,完全遮光电表指示100%,无遮拦指示0。此法优点是简单可靠,方便连续测试烟度。但是必须保持适当感测间距,以减轮背景感光误差。
With the development of science of environmental protection and internal combustion engine engineering science, the measurement requirements of exhaust smoke of internal combustion engine are becoming more and more common. Currently used measurement methods are the following: 1. Card tube sensing method. By the side of the “handle” bow 肜 card tube, mount both sides of the nozzle at the installation of spotlights, photovoltaic cells, the composition of the smoke sensor, and then through the “handle” end of the plug with a seat with wire and light power and light battery instructions Meter connected. Header 0 ~ 100% indexing, completely obscured meter indicates 100%, no obstruction indication 0. Advantages of this method is simple and reliable, convenient and continuous testing of smoke. However, proper sensing of spacing must be maintained to reduce the background exposure error.