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Laboratory testing and data analysis of the Electrostatic Lunar Dust Analyzer (ELDA) instrument.

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Title: Laboratory testing and data analysis of the Electrostatic Lunar Dust Analyzer (ELDA) instrument.
Authors: Xie, J.1,2 Jianfeng.Xie@colorado.edu, Sternovsky, Z.1,2,3, Auer, S4, Drake, K.1,2, Grün, E.1,2, Horanyi, M.1,2, Le, H.1, Srama, R.5,6
Source: Planetary & Space Science. Dec2013, Vol. 89, p63-70. 8p.
Subjects: Lunar dust, Electrostatics, Data analysis, Lunar surface, Vacuum, Particle size distribution, Signal-to-noise ratio
Abstract: Abstract: We report the advance development of the Electrostatic Lunar Dust Analyzer (ELDA) instrument for the detection of individual low-velocity micron-size dust particles mobilized near the lunar surface, and the measurement of the dust charge, velocity vector, and mass. The first article (N. Duncan et al., Planet. Space Sci., 2011) described the measurement principle, optimized instrument geometry, and the initial testing performed on air. The full laboratory prototype of ELDA has now been completed and tested under vacuum. The numerical data analysis is improved to include gravitation and the calculation of the particle's mass. The ELDA operation principle is based on sensing a charged dust particle by an array of wire electrodes as it is passing though the instrument. Each wire electrode is connected to a charge sensitive amplifier and the velocity vector is reconstructed from the signal shapes and amplitudes. Within the instrument, a strong electrostatic field is used to deflect the trajectories of the particles. The dust mass is determined from the change in velocity measured before and after deflection. The instrument is tested using particles with 54μm mean radius and a narrow size distribution. The experimental results and the error analyses show that ELDA can measure the mass of individual particle with a factor of two even for very low signal to noise ratio. [Copyright &y& Elsevier]
Copyright of Planetary & Space Science is the property of Pergamon Press - An Imprint of Elsevier Science and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Engineering Source
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Header DbId: egs
DbLabel: Engineering Source
An: 92731436
AccessLevel: 6
PubType: Academic Journal
PubTypeId: academicJournal
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  Data: Laboratory testing and data analysis of the Electrostatic Lunar Dust Analyzer (ELDA) instrument.
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  Data: <searchLink fieldCode="AR" term="%22Xie%2C+J%2E%22">Xie, J.</searchLink><relatesTo>1,2</relatesTo><i> Jianfeng.Xie@colorado.edu</i><br /><searchLink fieldCode="AR" term="%22Sternovsky%2C+Z%2E%22">Sternovsky, Z.</searchLink><relatesTo>1,2,3</relatesTo><br /><searchLink fieldCode="AR" term="%22Auer%2C+S%22">Auer, S</searchLink><relatesTo>4</relatesTo><br /><searchLink fieldCode="AR" term="%22Drake%2C+K%2E%22">Drake, K.</searchLink><relatesTo>1,2</relatesTo><br /><searchLink fieldCode="AR" term="%22Grün%2C+E%2E%22">Grün, E.</searchLink><relatesTo>1,2</relatesTo><br /><searchLink fieldCode="AR" term="%22Horanyi%2C+M%2E%22">Horanyi, M.</searchLink><relatesTo>1,2</relatesTo><br /><searchLink fieldCode="AR" term="%22Le%2C+H%2E%22">Le, H.</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Srama%2C+R%2E%22">Srama, R.</searchLink><relatesTo>5,6</relatesTo>
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  Data: <searchLink fieldCode="JN" term="%22Planetary+%26+Space+Science%22">Planetary & Space Science</searchLink>. Dec2013, Vol. 89, p63-70. 8p.
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  Data: <searchLink fieldCode="DE" term="%22Lunar+dust%22">Lunar dust</searchLink><br /><searchLink fieldCode="DE" term="%22Electrostatics%22">Electrostatics</searchLink><br /><searchLink fieldCode="DE" term="%22Data+analysis%22">Data analysis</searchLink><br /><searchLink fieldCode="DE" term="%22Lunar+surface%22">Lunar surface</searchLink><br /><searchLink fieldCode="DE" term="%22Vacuum%22">Vacuum</searchLink><br /><searchLink fieldCode="DE" term="%22Particle+size+distribution%22">Particle size distribution</searchLink><br /><searchLink fieldCode="DE" term="%22Signal-to-noise+ratio%22">Signal-to-noise ratio</searchLink>
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  Label: Abstract
  Group: Ab
  Data: Abstract: We report the advance development of the Electrostatic Lunar Dust Analyzer (ELDA) instrument for the detection of individual low-velocity micron-size dust particles mobilized near the lunar surface, and the measurement of the dust charge, velocity vector, and mass. The first article (N. Duncan et al., Planet. Space Sci., 2011) described the measurement principle, optimized instrument geometry, and the initial testing performed on air. The full laboratory prototype of ELDA has now been completed and tested under vacuum. The numerical data analysis is improved to include gravitation and the calculation of the particle's mass. The ELDA operation principle is based on sensing a charged dust particle by an array of wire electrodes as it is passing though the instrument. Each wire electrode is connected to a charge sensitive amplifier and the velocity vector is reconstructed from the signal shapes and amplitudes. Within the instrument, a strong electrostatic field is used to deflect the trajectories of the particles. The dust mass is determined from the change in velocity measured before and after deflection. The instrument is tested using particles with 54μm mean radius and a narrow size distribution. The experimental results and the error analyses show that ELDA can measure the mass of individual particle with a factor of two even for very low signal to noise ratio. [Copyright &y& Elsevier]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Planetary & Space Science is the property of Pergamon Press - An Imprint of Elsevier Science and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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        Value: 10.1016/j.pss.2013.01.004
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      – Code: eng
        Text: English
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        PageCount: 8
        StartPage: 63
    Subjects:
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        Type: general
      – SubjectFull: Electrostatics
        Type: general
      – SubjectFull: Data analysis
        Type: general
      – SubjectFull: Lunar surface
        Type: general
      – SubjectFull: Vacuum
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      – SubjectFull: Particle size distribution
        Type: general
      – SubjectFull: Signal-to-noise ratio
        Type: general
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      – TitleFull: Laboratory testing and data analysis of the Electrostatic Lunar Dust Analyzer (ELDA) instrument.
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              M: 12
              Text: Dec2013
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              Y: 2013
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