Record Details
An Inexpensive Sonic Anemometer for Eddy Correlation
ScholarsArchive at Oregon State University
| Field | Value |
|---|---|
| Title | An Inexpensive Sonic Anemometer for Eddy Correlation |
| Names |
Campbell, G. S.
(creator) Unsworth, M. H. (creator) |
| Date Issued | 1979-08 (iso8601) |
| Abstract | A new continuous wave sonic anemometer was constructed using inexpensive ultrasonic transducers and phase-locked loop integrated circuitry. Vertical wind is measured by sensing the difference in phase between sound waves traveling in the +g and −z directions. The direction of sound travel is reversed 78 times per second, so the wind signal is updated at this frequency. Resolution is better than 1 cm s⁻¹ and drift less than 3 mm s⁻¹ K⁻¹. Comparisons with a commercial sonic anemometer show excellent agreement between measurements from the two units. |
| Genre | Article |
| Identifier | Campbell, G. S., M. H. Unsworth, 1979: An Inexpensive Sonic Anemometer for Eddy Correlation. Journal of Applied Meteorology, 18, 1072–1077. |
