Accession Number : ADA620392


Title :   A Method for Eliminating Beam Steering Error for the Modulated Absorption-Emission Thermometry Technique


Descriptive Note : Briefing chaqrts


Corporate Author : AIR FORCE RESEARCH LAB EDWARDS AFB CA ROCKET PROPULSION DIV


Personal Author(s) : Coy, Edward B


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/a620392.pdf


Report Date : Jan 2015


Pagination or Media Count : 24


Abstract : Modulated absorption-emission thermometry (MAET) is a non-intrusive, radiometric technique for measuring line-of-sight average temperature in high-temperature gases. The technique uses alternating measurements of emission and transmission to obtain the emissivity and the radiative intensity of the gas over a spectral band. The temperature is then calculated from the Planck function. The technique does not involve the measurement of spectral features such as line widths or strengths and therefore is suitable for high-pressure environments where spectral lines are broadened and merged. It is also suitable for environments where broadband emitters such as soot are present.


Descriptors :   *FILM COOLING , *LIQUID PROPELLANT ROCKET ENGINES , *TEMPERATURE MEASURING INSTRUMENTS , BOUNDARY LAYER , EMBEDDED SYSTEMS , RADIOMETRY


Subject Categories : Test Facilities, Equipment and Methods
      Miscellaneous Detection and Detectors
      Liquid Propellant Rocket Engines


Distribution Statement : APPROVED FOR PUBLIC RELEASE