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对露点仪镜面过冷水产生的原因及其对露点测量准确度的影响进行分析,采用图像处理方法对露点仪镜面上的过冷水进行自动识别,经过计算机处理,修正了因露霜判别错误引入的误差,提高了露点测量的准确度和自动化程度。
The reason of the supercooled water in the dew point instrument and its influence on the dew point measurement accuracy were analyzed. The image processing method was used to automatically identify the supercooled water on the dew point mirror surface. After computer processing, the error caused by the dew point determination error was corrected , Increasing the accuracy and automation of dew point measurements.