AOS: condensation particle counter - aoscpc

The condensation particle counter (CPC) measures sub-micron aerosol particle number concentration by condensing fluid onto particles and causing them to grow to sizes that are easily detectable by optical scattering. The condensing liquid is typically an alcohol (e.g., butanol) or water. \n \nDepending on the CPC type, typical CPC instruments can count particles with sizes that range from 3 to 3000 nanometers (ultrafine CPC) or from 10 to 3000 nanometers (fine CPC). The CPC is part of the aerosol observing system (AOS).

凝聚粒子计数器（condensation particle counter, CPC）通过将冷凝液附着于颗粒表面并使其生长至可通过光散射轻易检测的尺寸，从而测量亚微米气溶胶颗粒的数浓度。所用冷凝液通常为醇类物质（如丁醇）或水。

依据CPC的机型类型差异，常规CPC仪器可计数的颗粒粒径范围分为两类：超细型CPC可覆盖3~3000纳米的粒径区间，细颗粒型CPC可覆盖10~3000纳米的粒径区间。凝聚粒子计数器是气溶胶观测系统（aerosol observing system, AOS）的组成部分。