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).

凝结核计数器（condensation particle counter, CPC）通过将冷凝液凝结于粒子表面，并使粒子生长至可通过光散射便捷检测的尺寸，以此测量亚微米气溶胶粒子数浓度。其常用冷凝液多为醇类（如丁醇）或水。

根据CPC的类型差异，常规CPC仪器可计数的粒子尺寸范围分为两类：超细CPC为3~3000纳米，细粒子CPC为10~3000纳米。CPC是气溶胶观测系统（aerosol observing system, AOS）的组成部分。