@article{ref1,
title="Application research of light scattering principle in dust measurement system",
journal="China safety science journal (CSSJ)",
year="2020",
author="Fu, S. and Li, Q. and Hu, J. and Dong, H.",
volume="30",
number="6",
pages="37-42",
abstract="In order to prevent harm caused by respiratory dust and to monitor mass concentration of individual exhalation dust, a portable personal concentration monitoring test prototype was developed by using infrared light emitting photodiode as a light source according to principle of light scattering, and its pneumatic control circuit and optical control and detection circuit were designed. Then, prototype and comparison instrument were put in a self-made dust test device together with dust gas which featured a flow rate of 2 L/ min and a particle size of 5 μm. The results show that when mass concentration of dust is between 0-150 mg/ m3, measured voltage of prototype increases along with increase of dust concentration, and they maintain a good linear relationship. The relative error between measured concentration value of prototype by using regression equation and that of comparison instrument is within ±4%, indicating that the device meets requirements of relevant dust verification regulations. © 2020 China Safety Science Journal. All rights reserved.<p /><p>Language: zh</p>",
language="zh",
issn="1003-3033",
doi="10.16265/j.cnki.issn1003-3033.2020.06.006",
url="http://dx.doi.org/10.16265/j.cnki.issn1003-3033.2020.06.006"
}