On the time response determination of condensation particle counters

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http://hdl.handle.net/10138/308191

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Enroth , J , Kangasluoma , J , Korhonen , F , Hering , S , Picard , D , Lewis , G , Attoui , M & Petäjä , T 2018 , ' On the time response determination of condensation particle counters ' , Aerosol Science and Technology , vol. 52 , no. 7 , pp. 778-787 . https://doi.org/10.1080/02786826.2018.1460458

Title: On the time response determination of condensation particle counters
Author: Enroth, Joonas; Kangasluoma, Juha; Korhonen, Frans; Hering, Susanne; Picard, David; Lewis, Greg; Attoui, Michel; Petäjä, Tuukka
Contributor: University of Helsinki, Department of Physics
University of Helsinki, Department of Physics
University of Helsinki, Department of Physics
University of Helsinki, Department of Physics
University of Helsinki, Department of Physics
Date: 2018
Language: eng
Number of pages: 10
Belongs to series: Aerosol Science and Technology
ISSN: 0278-6826
URI: http://hdl.handle.net/10138/308191
Abstract: Condensation particle counter (CPC) technology has continued to evolve, with the introduction of several new instruments over the last several years. An important aspect in the characterization of these instruments is the measurement of their time response. Yet there is no standardly accepted approach for this measurement. Here we evaluate different classically used methods for determining CPC time response, and present the potential pitfalls associated with these approaches. Further, we introduce a new simple definition for the term response time, E, which is based on the first-order systems response, while providing a practical definition by corresponding to approximate to 95% change in concentration. We also present results for various commonly used CPCs, and for the Airmodus A11 nano Condensation Nucleus Counter (nCNC) system, the TSI 3777+3772 Nano Enhancer system, and Aerosol Dynamics Inc.'s (ADI) new versatile water condensation particle counter.Copyright (c) 2018 American Association for Aerosol Research
Subject: Jingkun Jiang
MOBILITY SPECTROMETER
SPARK DISCHARGE
NUCLEUS COUNTER
LAMINAR-FLOW
CPC
NM
DISTRIBUTIONS
GENERATION
AEROSOLS
114 Physical sciences
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