| 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 |
Checkout
Status |
| NTIS |
PB82-127929 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
| 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. |
| Supplementary Notes |
Pub. in Jnl. of Applied Meteorology, v20 n5 p588-594 May 81. |
| NTIS Title Notes |
Journal article. |
| Title Annotations |
Reprint: Measuring the Dynamic Performance of Wind Vanes. |
| PUB Date Free Form |
28 Jan 81 |
| Category Codes |
4B; 55F |
| NTIS Prices |
PC A02/MF A01 |
| Primary Description |
600/08 |
| Document Type |
NT |
| Cataloging Source |
NTIS/MT |
| Control Number |
323807920 |
| Origin |
NTIS |
| Type |
CAT |
