Spectrometric system for characterizing drop and powder trajectories and chemistry in reactive flows

  • Jerry C. Cabalo
  • , John J. Schmidt
  • , Jost O.L. Wendt
  • , Alexander Scheeline

Research output: Contribution to journalArticlepeer-review

Abstract

An instrument for emission, fluorescence, and scattering diagnostics of a 22 kW gas/air thermal reactor is described. Z-pair parabolic mirrors provide diffraction-limited imaging in field center, with worst-case blur over a 12.8 mm field of view having a radius of 0.044 mm rms. Either full-field filtered or transverse line dispersed viewing can occur simultaneously. Dispersion is achieved using a 2-m spectrograph f-matched to the feed optics. Examples of data show non-axisymmetric flow in a nominally laminar flow system, drop shapes in situ, and Mie scattering from soot.

Original languageEnglish (US)
Pages (from-to)1345-1353
Number of pages9
JournalApplied Spectroscopy
Volume56
Issue number10
Early online dateOct 1 2002
DOIs
StatePublished - Oct 2002

Keywords

  • Drop vaporization
  • Flame diagnostics
  • Imaging
  • Planar laser-induced fluorescence
  • Spectroscopy in harsh environments

ASJC Scopus subject areas

  • Instrumentation
  • Spectroscopy

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