#$%^&*AU2019101143A420191031.pdf#####ABSTRACT Dust in the atmosphere is not only easy to be inhaled by the human body, but also affects the visibility of the atmosphere, so the monitoring and control of dust is one of the important responsibilities of environmental protection departments. However, because dust concentration is easily affected by air humidity, temperature and other factors, it is very important to monitor dust concentration accurately and at any time. 1-- - - - -- - - - -- - - - - -- -GP2YIOIOAU VVc 4--50 _-L bba) +5Vv Ddo1dr AW ___ ___ Dad& GD Figurel ON ILED OFF Output pulse Sampling Figure2 I
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机译：＃$％^＆* AU2019101143A420191031.pdf #####抽象大气中的灰尘不仅容易被人体吸入身体，还会影响大气的能见度，因此进行监测控制粉尘是其重要职责之一环保部门。但是，因为灰尘浓度容易受空气湿度，温度等影响因素，准确监测粉尘浓度和随时。1个---------------GP2YIOIOAU VVc4--50_-L bba）+ 5VvDdo1dr AW ___ ___爸爸与爸爸图上关灯输出脉冲采样图2一世
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