Calibration of the Detection Efficiency of the Condensation Particle Counter (CPC) and Evaluation of the Classification Characteristics of the Differential Mobility Analyzer (DMA)

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  • SAKURAI Hiromu
    National Institute of Advanced Industrial Science and Technology (AIST)
  • SATO Yoshihiro
    National Institute of Advanced Industrial Science and Technology (AIST)
  • EHARA Kensei
    National Institute of Advanced Industrial Science and Technology (AIST)

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Other Title
  • 凝縮式粒子計数器 (CPC) の検出効率の校正と微分型移動度分級器 (DMA) の分級特性の評価
  • ギョウシュクシキ リュウシ ケイスウキ CPC ノ ケンシュツ コウリツ ノ コウセイ ト ビブンガタ イドウド ブンキュウキ DMA ノ ブンキュウ トクセイ ノ ヒョウカ

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Abstract

Methods for calibration of the condensation particle counter (CPC) and characterization of the transfer function of the differential mobility analyzer (DMA), both of which have been developed at AIST, are discussed in this article. In the first part, the methodology for calibration of the detection efficiency of CPCs is explained. It will be used in the calibration service by AIST for CPCs and aerosol electrometers. The procedure is also proposed by us as part of a future ISO standard. In the second part, our method for evaluation of the transfer function of DMAs is discussed. It is based on the work by Martinsson et al. (Aerosol Sci. Technol., 35, 815 (2001)) which allows determination of the sizing resolution, particle losses, and their size dependence and has been improved by us. These calibration and characterization techniques for the CPC and DMA, which are the two crucial instruments for electrical mobility analysis, are expected to provide accuracy and reliability to size distribution measurements of aerosol nanoparticles.

Journal

  • Earozoru Kenkyu

    Earozoru Kenkyu 22 (4), 310-316, 2007

    Japan Association of Aerosol Science and Technology

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