Accession Number:

ADA214423

Title:

Surface Thermometry of Energetic Materials by Laser-Induced Fluorescence

Descriptive Note:

Final technical rept. Feb 1987-Aug 1989

Corporate Author:

SYSTEMS RESEARCH LABS INC DAYTON OH

Personal Author(s):

Report Date:

1989-09-01

Pagination or Media Count:

69.0

Abstract:

The laser-induced fluorescence from Dy YAG has been employed for t he measurement of temperature on reacting and nonreacting surfaces. Point, line, and two-dimensional mapping of the surface temperature has been demonstrated utilizing the tripled output 355 nm of a NdYAG laser. The temporal and spatial distribution of the temperature was recorded with a two-dimensional intensified imaging system. The technique has also been utilized for the measurement of the thermal depth profile of a plastic material undergoing rapid heating by a CO2 laser. A fiber-optic temperature probe was developed. Fluorescent crystals bonded to the fiber-optic tip with a ceramic adhesive provide a 300 - 1100 K temperature range for the probe. Surface temperature measurement, Laser-induced fluorescence, Solid-fuel propellants, Rare-earth ions, Nonintrusive evaluation, Optical diagnostics. jes

Subject Categories:

  • Lasers and Masers

Distribution Statement:

APPROVED FOR PUBLIC RELEASE