Main Title |
Examination of automatic data reduction methods for particle field holograms / |
Author |
Trolinger, James Davis. ;
Trolinger, J. D.
|
CORP Author |
Spectron Development Labs., Inc., Costa Mesa, CA.;Environmental Sciences Research Lab., Research Triangle Park, NC. |
Publisher |
U.S. Environmental Protection Agency, Office of Research and Development, Environmental Sciences Research Laboratory, |
Year Published |
1979 |
Report Number |
EPA-68-02-2491; EPA/600/2-79/005; |
Stock Number |
PB-290 909 |
OCLC Number |
42638101 |
Subjects |
Holography ;
Particle size determination ;
Air--Pollution--Measurement--Equipment and supplies
|
Additional Subjects |
Air pollution ;
Holography ;
Particles ;
Particle size ;
Particle shape ;
Velocity ;
Design criteria ;
Performance evaluation ;
Holograms ;
Data reduction ;
Air pollution detection
|
Internet Access |
|
Holdings |
Library |
Call Number |
Additional Info |
Location |
Last Modified |
Checkout Status |
EHAM |
EPA/600/2-79/005 |
|
Region 1 Library/Boston,MA |
05/25/2016 |
EJBD |
EPA 600-2-79-005 |
c.1 |
Headquarters Library/Washington,DC |
07/09/2013 |
EKBD |
EPA-600/2-79-005 |
|
Research Triangle Park Library/RTP, NC |
06/27/2003 |
ELBD ARCHIVE |
EPA 600-2-79-005 |
Received from HQ |
AWBERC Library/Cincinnati,OH |
10/04/2023 |
ESAD |
EPA 600-2-79-005 |
|
Region 10 Library/Seattle,WA |
03/23/2010 |
NTIS |
PB-290 909 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
Collation |
viii, 51 pages : illustrations ; 28 cm. |
Abstract |
Holographic recording techniques provide one of the most powerful particle field diagnostic tools in existence. A hologram can provide a frozen three-dimensional image of a particle field through which detailed microscopic examination of individual particles is possible. Frequently, a particle field may contain many thousands of particles, and it becomes impractical for the human operator to glean all the data of interest from such a hologram. For holography to reach its full potential in particle diagnostics, a three-dimensional image analyzer is required. The purpose of this study was to examine the feasibility of using existing electro-optic image analyzers to automatically analyze three-dimensional image fields and to determine what modifications of existing equipment would be required to construct such a system. Sample holograms as well as holograms produced in an actual field holo-camera were used to make the evaluations experimentally, and well-refined analytical descriptions of holographic images were used to add to the understanding of system requirements. The study established that existing image analyzers are capable within useful practical limits of locating particle images in three-dimensions and measuring size and shape factors of the particle. A plan for integrating such equipment to produce a fully automated data reduction system is presented. |
Notes |
"EPA-600/2-79-005." EPA contract no. 68-02-2491; EPA project officer: Charles W. Lewis. Includes bibliographical references (page 50). |