Full Record Display for the EPA National Library Catalog


OLS Field Name OLS Field Data
Main Title Cross-stack optical convolution velocimeter : development and evaluation of a breadboard design /
Author Rudd, Michael J. ; Rudd, M. J.
CORP Author Bolt Beranek and Newman, Inc., Cambridge, MA.;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-600/2-79-192
Stock Number PB80-129273
OCLC Number 42394790
Subjects Gas flow--Measurement.
Additional Subjects Speed indicators ; Plumes ; Velocity measurement ; Optical measurement ; Convolution integrals ; Gas flow ; Dust ; Mathematical models ; Performance evaluation ; Pitot tubes ; Air pollution sampling
Internet Access
Description Access URL
Library Call Number Additional Info Location Last
EHAM  EPA-600/2-79-192 Region 1 Library/Boston,MA 05/25/2016
EJAD  EPA 600/2-79-192 Region 3 Library/Philadelphia, PA 06/16/2000
EJBD ARCHIVE EPA 600-2-79-192 Headquarters Library/Washington,DC 09/07/2011
EJBD  EPA 600-2-79-192 c.1 Headquarters Library/Washington,DC 01/29/2014
EKAM  EPA 600/2-79/192 Region 4 Library/Atlanta,GA 09/24/1999
EKBD  EPA-600/2-79-192 Research Triangle Park Library/RTP, NC 07/04/2003
NTIS  PB80-129273 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, 31 pages : figures, tables, graphs ; 28 cm.
Abstract A new type of instrument has been designed and evaluated for the measurement of a line average of a stack gas velocity. The light output from a lamp is collimated and projected across the stack. A shadowgraph image of the turbulence in the stack is produced on the far side and this image is convected by the stack gas flow. A grating is placed over the image and the light transmitted falls on a photodetector. The frequency output from the photodetector is the rate at which the shadow graph image crosses the grating. A breadboard design of this cross-stack optical convolution velocimeter (OCV), as it is called, was built and evaluated over a wide range of environmental conditions. Agreement between the OCV and a corrected pitot tube was within 1.3% (root mean square error). Position sensitivity of the OCV was extensively studied and a configuration was found that is completely insensitive to position. Laboratory tests showed that the cross-stack OCV is an effective, accurate velocity monitoring instrument that is simple to build and operate.
Notes "EPA-600/2-79-192." EPA contract no. 68-02-2786, EPA project officer: John S. Nader. Includes bibliographical references.
Place Published Research Triangle Park, NC
Access Notes Also available via World Wide Web.
Corporate Au Added Ent Environmental Sciences Research Laboratory (U.S.); United States. Environmental Protection Agency. Office of Research and Development.; Bolt, Beranek, and Newman, inc.
Title Ser Add Ent Research reporting series. Environmental protection technology ; EPA-600/2-79-192.
NTIS Title Notes Final rept. Oct 77-Mar 78.
PUB Date Free Form October 1979
Series Title Untraced Environmental protection technology series ; EPA 600/2-79/192
Category Codes 14B; 68A
NTIS Prices PC A03/MF A01
Primary Description 600/09
BIB Level m
Medium unmediated
Content text
Carrier volume
Cataloging Source OCLC/T
Control Number 323773163
OCLC Time Stamp 20160419143433
Language eng
Origin OCLC
OCLC Rec Leader 01615cam 2200349Ka 45020