Optical Instrument to Measure the Mass Concentration and Size Distribution of Smoke Particles

Abstract

This proposal describes the development of a system to measure in-situ and in real-time, the size distribution and mass concentration of soot particles in turbojet exhausts. The proposed system will work in-situ in highly turbulent environments. The total signal will yield soot mass concentration while the time-resolved signal will yield particle size. Its potentially compact size and large dynamic measurement range will give the system broad market potential in a variety of industries attempting to measure and suppress particle pollution. The Phase 1 work will include developing an analytical model to derive soot mass concentration and particle size from the signal. A breadboard will be built to conduct proof-of-concept experiments, and the preliminary design for a field system will be produced. The proposed system will be particularly valuable to the Air Force to measure soot in engine test facilities which arc characterized by high vibration and noise levels.

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Document Details

Document Type
Technical Report
Publication Date
Dec 01, 1997
Accession Number
ADA360968

Entities

People

  • Cecil F. Hess
  • Jerry Seitzman
  • Stefan R. Martin

Tags

Communities of Interest

  • Air Platforms
  • Cyber
  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Air Flow
  • Air Force
  • Argon Lasers
  • Detection
  • Flow
  • Generators
  • Laser Beams
  • Laser Pulses
  • Lasers
  • Light Scattering
  • Measurement
  • Optical Instruments
  • Particle Size
  • Particles
  • Radiation
  • Scattering
  • Specific Heat

Readers

  • Aerosol Science/Aerosol Physics
  • Electronics Engineering
  • Research Science/Academic Research