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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Editor: Jospeh N. Mait
  • Vol. 48, Iss. 3 — Jan. 20, 2009
  • pp: 489–496

Applicability of moiré deflection tomography for diagnosing arc plasmas

Chen Yun-yun, Song Yang, He An-zhi, and Li Zhen-hua  »View Author Affiliations


Applied Optics, Vol. 48, Issue 3, pp. 489-496 (2009)
http://dx.doi.org/10.1364/AO.48.000489


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Abstract

The argon arc plasma whose central temperature, 1.90 × 10 4 K , is used as a practical example for an experiment to research the applicability of moiré deflection tomography in arc plasma flow-field diagnosis. The experimental result indicates that moiré deflection of the measured argon arc plasma is very small, even smaller than that of a common flame with the maximal temperature of nearly 1.80 × 10 3 K . The refractive-index gradient in moiré deflection tomography mainly contributes to the temperature gradient in essence when the probe wavelength and pressure are certain in plasma diagnosis. The applicable temperature ranges of moiré deflection tomography in the argon arc plasma diagnosis are given with the probe wavelength 532 nm at 1 atm in certain measuring error requirements. In a word, the applicable temperature range of moiré deflection tomography for arc plasma diagnosis is intimately related to the probe wavelength and the practical measuring requirements.

© 2009 Optical Society of America

OCIS Codes
(110.6960) Imaging systems : Tomography
(120.4120) Instrumentation, measurement, and metrology : Moire' techniques
(280.2490) Remote sensing and sensors : Flow diagnostics
(280.5395) Remote sensing and sensors : Plasma diagnostics

ToC Category:
Imaging Systems

History
Original Manuscript: August 18, 2008
Revised Manuscript: October 29, 2008
Manuscript Accepted: November 22, 2008
Published: January 13, 2009

Citation
Chen Yun-yun, Song Yang, He An-zhi, and Li Zhen-hua, "Applicability of moiré deflection tomography for diagnosing arc plasmas," Appl. Opt. 48, 489-496 (2009)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-48-3-489

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