Fiber Optics Particle-Sizing System

reportActive / Technical Report | Accession Number: AD0766647 | Open PDF

Abstract:

A fiber optics particle-sizing system is discussed with respect to theory of operation and data acquisition and reduction techniques. The system uses a shadow-graphic technique to determine the dimensions and numbers of particles moving in a flow field. The system is digital in nature. Particles pass through a collimated laser beam and are imaged onto a linear array by a coaxial lens. The array is composed of the exposed ends of a fiber optics bundle which serves as a link between the array plane and the sensing photo-detector modules. Being an imaging device, it can measure a wide range of particle sizes through the proper selection of optics. Sizes ranging from 2 to 1500 micrometers have been measured in the course of this project. Comparisons of holographic data of a liquid rocket injector and of water spray nozzles are made with the fiber optics system.

Author(s):
Bentley, H. T.
Author Organization(s):
ARNOLD ENGINEERING DEVELOPMENT CENTER ARNOLD AFB TN
Descriptive Note:
Final rept. Jul 1971-Jun 1972
Supplementary Note:
Prepared in cooperation with ARO, Inc., Tullahoma, TN Rept. no ARO-OMD-TR-73-48. DOI: 10.21236/AD0766647
Pagination:
0089

Security Markings

DOCUMENT & CONTEXTUAL SUMMARY

Distribution:
Approved For Public Release
Distribution Statement:
Approved For Public Release; Distribution Is Unlimited.

RECORD

Collection: TR
Identifying Numbers
Report Number(s):
AEDC-TR-73-111
Project Number(s):
ARO-BB5252
Monitor Series:
AEDC
 Subject Terms
Joint Capability Areas:
JCA_5_Command and Control; JCA_5.3_Planning; JCA_5.3.3_Develop Strategy; JCA_5.3.4_Develop Courses of Action; JCA_5.3.5_Analyze Courses of Action; JCA_4.5.4_Requirements Definition; JCA_4.5_Operational Contract Support; JCA_4.6_Engineering
Modernization Areas:
Microelectronics
Communities of Interest:
Weapons Technologies
Descriptor(s):
*FLOW FIELDS, *OPTICAL INSTRUMENTS, COMPUTER PROGRAMS, DISTRIBUTION FUNCTIONS, ELECTROOPTICS, FIBER OPTICS, FLOW VISUALIZATION, LASERS, PARTICLE SIZE, STATISTICAL DISTRIBUTIONS, WIND TUNNELS
Field(s)/Group(s):
Fluid Mechanics, Fiber Optics and Integrated Optics
Keyword(s):
FORTRAN, FORTRAN 4 PROGRAMMING LANGUAGE
Report Date:
1973 Sep 01