SBIR Phase II: Development of a Broad Spectrum Differential Mobility Aerosol Analyzer for Aerosol Size Distribution Measurements

这个小型企业创新研究（SBIR）第二阶段项目将支持一个新的同步微分迁移率分析仪（SDMA）气溶胶尺寸和计数系统的持续发展，该系统使用简单，价格低廉，并允许快速观察环境颗粒数尺寸分布在0.005至0.4微米直径范围内。新技术将在很大程度上消除成本，尺寸，重量和操作员的专业知识的限制，目前可用的上浆技术。将制造颗粒大小测定、生长和光学检测系统的原型，并将在实验室中对照标准仪器对该仪器进行测试。拟议研究的更广泛影响包括满足增加环境气溶胶数据的空间和时间覆盖面的需要，同时通过降低成本和方便使用，创造一种更广泛的用户群体可以使用的测量技术。新技术的更广泛应用将成为学生和研究人员的教育工具，从而更广泛地了解颗粒浓度如何随环境，实验室和工业环境中的尺寸而变化。增加对环境气溶胶数量大小分布的变化的了解将为气溶胶全球气候和颗粒污染健康影响领域的研究人员提供重要信息。

This Small Business Innovation Research (SBIR) Phase II project will support the continued development of a new Synchronous Differential Mobility Analyzer (SDMA) aerosol sizing and counting system that is simple to use, inexpensive, and allows rapid observations of ambient particle number size distributions over the 0.005 to 0.4 micron diameter range. The new technology will largely eliminate the cost, size, weight, and operator-expertise limitations of currently available sizing technologies. Prototypes of the particle sizing, growth and optical detection systems will be fabricated and the instrument will be tested side-by-side against standard instruments in the laboratory. Broader impacts of the proposed research include satisfying the need for increased spatial and temporal coverage of ambient aerosol data while creating a measurement technique accessible to a more general group of users through reduced cost and ease of use. The broader application of the new technology will serve as an educational tool for students and investigators leading to more widespread understanding of how particle concentration varies with size in ambient, laboratory and industrial settings. Increased understanding of the variability of the ambient aerosol number size distribution will serve as important information for investigators in the areas of aerosol global climate and particulate pollution health impacts.