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Development of Portable Aerosol Mobility Spectrometer for Personal and Mobile Aerosol Measurement.
Aerosol Science and Technology ( IF 5.2 ) Pub Date : 2016-01-01
Pramod Kulkarni 1 , Chaolong Qi 1 , Nobuhiko Fukushima 2
Affiliation  

We describe development of a Portable Aerosol Mobility Spectrometer (PAMS) for size distribution measurement of submicrometer aerosol. The spectrometer is designed for use in personal or mobile aerosol characterization studies and measures approximately 22.5 × 22.5 × 15 cm and weighs about 4.5 kg including the battery. PAMS uses electrical mobility technique to measure number-weighted particle size distribution of aerosol in the 10-855 nm range. Aerosol particles are electrically charged using a dual-corona bipolar corona charger, followed by classification in a cylindrical miniature differential mobility analyzer. A condensation particle counter is used to detect and count particles. The mobility classifier was operated at an aerosol flow rate of 0.05 L/min, and at two different user-selectable sheath flows of 0.2 L/min (for wider size range 15-855 nm) and 0.4 L/min (for higher size resolution over the size range of 10.6-436 nm). The instrument was operated in voltage stepping mode to retrieve the size distribution, which took approximately 1-2 minutes, depending on the configuration. Sizing accuracy and resolution were probed and found to be within the 25% limit of NIOSH criterion for direct-reading instruments (NIOSH 2012). Comparison of size distribution measurements from PAMS and other commercial mobility spectrometers showed good agreement. The instrument offers unique measurement capability for on-person or mobile size distribution measurements of ultrafine and nanoparticle aerosol.

中文翻译:

便携式气溶胶迁移谱仪的开发,用于个人和移动气溶胶测量。

我们描述了一种便携式气溶胶迁移谱仪(PAMS)的开发,用于亚微米气溶胶的尺寸分布测量。该光谱仪设计用于个人或移动气溶胶表征研究,尺寸约为22.5×22.5×15 cm,包括电池在内的重量约为4.5 kg。PAMS使用电迁移率技术来测量10-855 nm范围内气溶胶的数加权粒径分布。使用双电晕双极电晕充电器对气溶胶颗粒进行充电,然后在圆柱形微型差分迁移率分析仪中进行分类。冷凝粒子计数器用于检测和计数粒子。流动性分类器以0.05 L / min的气溶胶流速和0的两种用户可选的鞘管流速运行。2 L / min(适用于15-855 nm的较宽尺寸范围)和0.4 L / min(适用于10.6-436 nm的尺寸范围内更高的尺寸分辨率)。仪器以电压步进模式运行以恢复尺寸分布,这大约需要1-2分钟,具体取决于配置。对尺寸精确度和分辨率进行了调查,发现其在直接阅读工具的NIOSH标准的25%范围内(NIOSH 2012)。从PAMS和其他商用移动光谱仪进行的尺寸分布测量的比较显示出很好的一致性。该仪器提供了独特的测量功能,可用于超细和纳米颗粒气溶胶的人体或移动尺寸分布测量。仪器以电压步进模式运行以恢复尺寸分布,这大约需要1-2分钟,具体取决于配置。对尺寸精确度和分辨率进行了调查,发现其在直接阅读工具的NIOSH标准的25%范围内(NIOSH 2012)。从PAMS和其他商用移动光谱仪进行的尺寸分布测量的比较显示出很好的一致性。该仪器提供了独特的测量功能,可用于超细和纳米颗粒气溶胶的人体或移动尺寸分布测量。仪器以电压步进模式运行以恢复尺寸分布,这大约需要1-2分钟,具体取决于配置。对尺寸精确度和分辨率进行了调查,发现其在直接阅读工具的NIOSH标准的25%范围内(NIOSH 2012)。从PAMS和其他商用移动光谱仪进行的尺寸分布测量的比较显示出很好的一致性。该仪器提供了独特的测量功能,可用于超细和纳米颗粒气溶胶的人体或移动尺寸分布测量。从PAMS和其他商用移动光谱仪进行的尺寸分布测量的比较显示出很好的一致性。该仪器提供了独特的测量功能,可用于超细和纳米颗粒气溶胶的人体或移动尺寸分布测量。从PAMS和其他商用移动光谱仪进行的尺寸分布测量的比较显示出很好的一致性。该仪器提供了独特的测量功能,可用于超细和纳米颗粒气溶胶的人体或移动尺寸分布测量。
更新日期:2019-11-01
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