Accession Number : ADA195586

Title :   Automatic Data Retrieval from Rocket Motor Holograms.

Descriptive Note : Master's thesis,

Corporate Author : NAVAL POSTGRADUATE SCHOOL MONTEREY CA

Personal Author(s) : Orguc, Emin S.

Report Date : DEC 1987

Pagination or Media Count : 56

Abstract : This thesis describes a technique of obtaining particle size information from holograms of combustion products. These data are needed to improve predictive capabilities of propellant performance, to provide input related to ammonium perchlorate (AP) - aluminum interactions for steady-state combustion models and to provide in motor particle size distributions to allow more accurate predictions of damping in stability analysis and two phase flow and exhaust plume signature. This study describes the use of Itex/PC software for the filtering and processing of the hologram images to reduce speckle and also, improves a Fortran program which had been written before to extract the particle feature size data from the modified image. The final step shows the statistical particle feature data exhibition by using the STATGRAPHICS (Statistical Graphics System) software. Keywords: Hologram, Image analysis, Speckle, Image action, STATGRAPHICS, Aluminum, Combustion chambers, Solid rocket propellants, Theses, Speckle interferometry. (jes)

Descriptors :   *COMBUSTION CHAMBERS, *COMBUSTION PRODUCTS, *SOLID ROCKET PROPELLANTS, ALUMINUM, AUTOMATION, COMBUSTION, COMPUTER PROGRAMS, DAMPING, EXHAUST PLUMES, FORTRAN, GRAPHICS, HOLOGRAMS, IMAGE PROCESSING, IMAGES, INFORMATION RETRIEVAL, INTERFEROMETRY, PARTICLE SIZE, PARTICLES, PREDICTIONS, ROCKET ENGINES, SIGNATURES, SPECULAR REFLECTION, STABILITY, STATISTICS, STEADY STATE, THESES, TWO PHASE FLOW, COMPUTER AIDED DIAGNOSIS.

Subject Categories : Solid Rocket Propellants
      Combustion and Ignition
      Computer Programming and Software

Distribution Statement : APPROVED FOR PUBLIC RELEASE