Record Display for the EPA National Library Catalog

RECORD NUMBER: 35 OF 57

OLS Field Name OLS Field Data
Main Title Measuring the Dynamic Performance of Wind Vanes.
Author Finkelstein, Peter L. ;
CORP Author Environmental Monitoring Systems Lab., Research Triangle Park, NC. Data Management and Analysis Div.
Year Published 1981
Report Number EPA-600/J-81-340;
Stock Number PB82-127929
Additional Subjects Wind direction ; Wind vanes ; Performance evaluation ; Measurement ; Accuracy ; Test methods ; Reprints ;
Holdings
Library Call Number Additional Info Location Last
Modified
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Status
NTIS  PB82-127929 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 10p
Abstract
The American Society for Testing and Materials (ASTM) has proposed a standard method for testing the performance characteristics of a wind vane. This report presents the procedures used to test and evaluate the ASTM method, and the results of that evaluation. Twelve wind vanes were borrowed from their manufacturers and tested using the ASTM procedures. The theory of wind vane dynamics is briefly reviewed. Measurements of starting threshold, starting accuracy, delay distance, overshoot ratio, and damped wavelength were made. Damping ratio and natural wavelength were computed from the measurements.