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| 基于差分吸收光谱法的大气质量在线连续监测系统 |
| An air quality on-line continuous-monitoring system based on differential optical absorption spectroscopy |
| 投稿时间：2015-08-30 |
| DOI：10.3969/j.issn.1005-5630.2016.03.014 |
| 中文关键词: 差分吸收光谱技术 连续监测 环境监测 气体浓度 |
| 英文关键词:differential optical absorption spectroscopy continuous monitoring environmental monitoring gas concentration |
| 基金项目:国家重大科学仪器设备专项子任务(2012YQ17000408);国家自然科学基金(61378035);浙江省重大科技专项(2012C12017-5);浙江省151人才工程 |
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| 中文摘要: |
| 为精确测量气体组分及其浓度,根据大气中硫化物和氮化物在紫外波段对光谱分子的吸收特性及基于差分吸收光谱技术及相应的计算方法,设计了大气质量在线连续监测系统。该系统对硬件做了性能提升,实现了高速精确采集;在算法上对Lambert-Beer定律进行了优化,消除了Rayleigh散射和Mie散射的影响,使测量结果更加精准,达到了精确、快速、实时地监测气体组分及其浓度的目的。 |
| 英文摘要: |
| To accurately measure the gas composition and concentration, we designed an air quality on-line continuous-monitoring system based on the differential absorption spectroscopy and the corresponding calculation method, because the spectral absorption characteristics of molecules in the ultraviolet of sulfides and nitrides in the atmosphere are specific.The system is designed to upgrade the performance of the hardware, achieving high precision.Algorithm Lambert-Beer's law has been optimized.The effects of Rayleigh scattering and Mie scattering are eliminated, realize accurately, rapidly, real-time monitoring of gas composition and concentration. |
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