电子器件2017，Vol.40Issue(5)：1244-1249,6.DOI:10.3969/j.issn.1005-9490.2017.05.037
气溶胶质量浓度测量系统的设计与实现
The Design and Implementation of the Aerosol Mass Concentration Measurement System
摘要
Abstract
In order to detect near-surface aerosol particles,an aerosol mass concentration measurement system based on single-particle light scattering method was designed. The high-speed AD9656 converter and FPGA multi-channel acquisition circuit were used to collect the output signal of the front optical sensor. The STM32 micro-controller combing with the aerosol concentration fractal inversion model was applied to calculate the aerosol mass concentra-tion. The measurement result was transmitted by wireless module to the cloud service platform. The experimental results show that the mass concentration values obtained by the fractal inversion model are in agreement with the standard values for smoke and air samples, and the fitting slope is 0. 96257 and 0. 90638, respectively, and the correlation coefficients are higher than 0.99,which indicates that the proposed aerosol mass concentration measure-ment system has a certain practical value.关键词
气溶胶质量浓度/光散射/高速AD转换器/多通道信号采集电路/信号幅度分布Key words
aerosol mass concentration/light scattering/high-speed AD converter/multi-channel signal acquisition circuit/signal amplitude distribution分类
信息技术与安全科学引用本文复制引用
沈雷,顾芳,张加宏,冒晓莉,刘毅..气溶胶质量浓度测量系统的设计与实现[J].电子器件,2017,40(5):1244-1249,6.基金项目
国家自然科学基金项目(61307113,61306138,41605120) （61307113,61306138,41605120）
江苏省自然科学基金项目(BK2012460) （BK2012460）
江苏省高等学校大学生实践创新训练计划项目(201510300034) （201510300034）
江苏高校品牌专业建设工程项目(TAPP) （TAPP）
