Record Display for the EPA National Library Catalog

RECORD NUMBER: 6 OF 16

OLS Field Name OLS Field Data
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
Description Access URL
http://nepis.epa.gov/Exe/ZyPDF.cgi?Dockey=91017SAR.PDF
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
EJAD  EPA 600/2-79-005 Region 3 Library/Philadelphia, PA 06/16/2000
EJBD ARCHIVE EPA 600-2-79-005 Headquarters Library/Washington,DC 09/07/2011
EJBD  EPA 600-2-79-005 c.1 Headquarters Library/Washington,DC 07/09/2013
EKAM  EPA 600/2-79/005 Region 4 Library/Atlanta,GA 10/22/1999
EKBD  EPA-600/2-79-005 Research Triangle Park Library/RTP, NC 06/27/2003
ESAD  EPA 600-2-79-005 Region 10 Library/Seattle,WA 03/23/2010
NTIS  PB-290 909 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. NTIS 06/23/1988
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).