Abstract A new technique to calibrate the sizing and counting characteristics of single-particle optical particle counters (OPCs) is presented. The method is not limited to a specific material for calibration, rather any material that can be aerosolized may be used for calibration. Examples of aerosols with real and complex refractive indices and spherical and non-spherical shapes are employed to demonstrate this calibration approach. The material choices include bis(2-ethylhexyl) sebacate, Fomblin, and soot. To generate monodisperse aerosols, an aerodynamic aerosol classifier is employed along with a constant output atomizer and a miniature inverted soot generator. The optical particle counter is then coupled to a condensation particle counter that facilitates concentration comparisons between the two devices. This approach is useful for OPC calibration for particle sizes less than approximately 5 μm.

中文翻译：

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使用气动气溶胶分级器校准光学粒子计数器

摘要 提出了一种校准单粒子光学粒子计数器 (OPC) 尺寸和计数特性的新技术。该方法不限于用于校准的特定材料，而是可以将任何可以雾化的材料用于校准。使用具有实数和复数折射率以及球形和非球形形状的气溶胶示例来演示这种校准方法。材料选择包括双（2-乙基己基）癸二酸酯、Fomblin 和烟灰。为了产生单分散气溶胶，采用空气动力学气溶胶分级器以及恒定输出雾化器和微型倒置烟尘发生器。然后将光学粒子计数器耦合到冷凝粒子计数器，该计数器有助于两个设备之间的浓度比较。