Assessment of Multiple Scattering Errors of Laser Diffraction Instruments
Abstract
Characterization of high-pressure rocket injector sprays often involves using commercial laser-based diagnostic instruments to measure droplet size in an environment well beyond the intended range of the instruments. Even in cold-flow measurements, this environment often involves very large number densities of droplets (N > 10 (exp 4)/cc) as well as refractive index gradients in the surrounding gas. As a result, optical attenuation and multiple scattering of the probe beam(s) and scattering signal is often the limiting factor in the ability to extract useable data.
Document Details
- Document Type
- Technical Report
- Publication Date
- Nov 06, 2002
- Accession Number
- ADA409179
Entities
People
- P. A. Strakey
Organizations
- Air Force Research Laboratory