灰尘传感测试仪器设计

ABSTRACTIn recent years,when people enjoy the rapid economic development brought aboutby the dividend,while the environmental pollution problem is also deeply imprintedin the hearts of the people.Every year on the haze of discussion,from the country tothe individual are beginning to think about how to solve the air pollution.Such as thesource of governance,shut down the rectification of high pollution and highconsumption of factories,desert greening,promote the practice of low-carbonenvironmental travel,etc..In our daily life,in addition to strengthen their awarenessof environmental protection,we also pay special attention to the current situation ofair environment,such as whether to wear a mask,is suitable for outdoor sports and soon,and all kinds of mobile phone weather forecasting cannot do air monitoring on ourcurrent small range.Therefore,it is necessary to have a simple and convenientinstrument which can quickly detect the current air quality.This paper studies how to detect the dust content of the air in the small space,anddisplays the concentration of dust in the air,and sets the alarm value.The system canprovide people with travel,indoor and outdoor activities to provide intuitive data onthe air condition,easy for users to make judgments.Keywords:PM2.5、MCU、LCD、sensor technology、PCB