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AbstractAir is the environmental factors of human survival, it is directly involved in human metabolism and body temperature regulation, and the life course, so air pollution is bound to harm human health. Detection of atmospheric dust content is an important indicator of pollution. Particles larger than 10 microns, almost nose and throat can be captured, not easy to enter the alveoli. However, most of the air current on the human body the most damaging particles 10 microns or less, it can run its eyes, nose, throat, skin and other organs and tissues, and through the respiratory tract deposition in the alveoli. Once the lungs of dust particles over the lung itself scavenging, it will deposit in the chest, causing pulmonary and pleural lesions, causing bronchitis, pneumonia, emphysema and other diseases. With the people's health awareness, dust content of the broadcast into a range of weather forecasting. Cleanliness level is a measure of clean room standards, cleanliness level of the common evaluation tool for the dust particle detector, it can be real-time monitoring of air cleanliness. Dust particle detector to the absolute scattering intensity of the signal to distinguish the particlesize, so data acquisition and analysis software is an important part. LabVIEW is a good virtual instrument software development platform. LabVIEW for its intuitive, simple way of programming, many source-level device drivers, a variety of analysis and expression of support functions for users to quickly build the actual production of equipment needed to create a strong foundation for the system conditions. Including data acquisition and instrument control is the most competitive core technology LabVIEW.

Keywords£ºdust content, data acquisition and analysis , LabVIEW
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