---
_id: '61010'
abstract:
- lang: eng
  text: "<jats:p>Abstract. Usually for the characterization of nanoparticles, an equivalent
    property is measured, e.g. the mobility-equivalent diameter. In the case of non-spherical,
    complex-shaped nanoparticles, one equivalent particle size is not sufficient for
    a complete characterization. Most of the methods utilized to gain deeper insight
    into the morphology of nanoparticles are very time-consuming and costly or have
    bad statistics (such as tandem setups or TEM (transmission electron microscopy)/SEM
    (scanning electron microscopy) images). To overcome these disadvantages, a prototype
    of a new compact device, the Centrifugal Differential Mobility Analyser (CDMA),
    was built, which can measure the full 2D distribution of mobility-equivalent and
    Stokes equivalent diameters by classification in a cylinder gap through electrical
    and centrifugal forces. An evaluation method to determine the transfer probabilities
    is developed and used in this work to compare the measurement results with the
    theory for the pure rotational behaviour (like the Aerodynamic Aerosol Classifier)
    and the pure electrical behaviour (like the Dynamic Mobility Analyser). In addition,
    the ideal 2D transfer function was derived using a particle trajectory approach.
    This 2D transfer function is a prerequisite for obtaining the full 2D particle
    size distribution from measurements by inversion.\r\n                    </jats:p>"
article_type: original
author:
- first_name: Torben N.
  full_name: Rüther, Torben N.
  last_name: Rüther
- first_name: David B.
  full_name: Rasche, David B.
  last_name: Rasche
- first_name: Hans-Joachim
  full_name: Schmid, Hans-Joachim
  id: '464'
  last_name: Schmid
  orcid: 000-0001-8590-1921
citation:
  ama: Rüther TN, Rasche DB, Schmid H-J. The Centrifugal Differential Mobility Analyser
    – concept and initial validation of a new device for measuring 2D property distributions.
    <i>Aerosol Research</i>. 2025;3(1):65-79. doi:<a href="https://doi.org/10.5194/ar-3-65-2025">10.5194/ar-3-65-2025</a>
  apa: Rüther, T. N., Rasche, D. B., &#38; Schmid, H.-J. (2025). The Centrifugal Differential
    Mobility Analyser – concept and initial validation of a new device for measuring
    2D property distributions. <i>Aerosol Research</i>, <i>3</i>(1), 65–79. <a href="https://doi.org/10.5194/ar-3-65-2025">https://doi.org/10.5194/ar-3-65-2025</a>
  bibtex: '@article{Rüther_Rasche_Schmid_2025, title={The Centrifugal Differential
    Mobility Analyser – concept and initial validation of a new device for measuring
    2D property distributions}, volume={3}, DOI={<a href="https://doi.org/10.5194/ar-3-65-2025">10.5194/ar-3-65-2025</a>},
    number={1}, journal={Aerosol Research}, publisher={Copernicus GmbH}, author={Rüther,
    Torben N. and Rasche, David B. and Schmid, Hans-Joachim}, year={2025}, pages={65–79}
    }'
  chicago: 'Rüther, Torben N., David B. Rasche, and Hans-Joachim Schmid. “The Centrifugal
    Differential Mobility Analyser – Concept and Initial Validation of a New Device
    for Measuring 2D Property Distributions.” <i>Aerosol Research</i> 3, no. 1 (2025):
    65–79. <a href="https://doi.org/10.5194/ar-3-65-2025">https://doi.org/10.5194/ar-3-65-2025</a>.'
  ieee: 'T. N. Rüther, D. B. Rasche, and H.-J. Schmid, “The Centrifugal Differential
    Mobility Analyser – concept and initial validation of a new device for measuring
    2D property distributions,” <i>Aerosol Research</i>, vol. 3, no. 1, pp. 65–79,
    2025, doi: <a href="https://doi.org/10.5194/ar-3-65-2025">10.5194/ar-3-65-2025</a>.'
  mla: Rüther, Torben N., et al. “The Centrifugal Differential Mobility Analyser –
    Concept and Initial Validation of a New Device for Measuring 2D Property Distributions.”
    <i>Aerosol Research</i>, vol. 3, no. 1, Copernicus GmbH, 2025, pp. 65–79, doi:<a
    href="https://doi.org/10.5194/ar-3-65-2025">10.5194/ar-3-65-2025</a>.
  short: T.N. Rüther, D.B. Rasche, H.-J. Schmid, Aerosol Research 3 (2025) 65–79.
date_created: 2025-08-25T16:05:37Z
date_updated: 2025-08-25T16:20:28Z
doi: 10.5194/ar-3-65-2025
funded_apc: '1'
intvolume: '         3'
issue: '1'
language:
- iso: eng
page: 65-79
publication: Aerosol Research
publication_identifier:
  issn:
  - 2940-3391
publication_status: published
publisher: Copernicus GmbH
quality_controlled: '1'
status: public
title: The Centrifugal Differential Mobility Analyser – concept and initial validation
  of a new device for measuring 2D property distributions
type: journal_article
user_id: '464'
volume: 3
year: '2025'
...