An Inexpensive Sonic Anemometer for Eddy Correlation

Citeable URL: https://ir.library.oregonstate.edu/concern/articles/tx31qk26d

Descriptions

Attribute Name	Values
Creator	Campbell, G. S. Unsworth, M. H.
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.
Resource Type	Article
DOI	https://doi.org/10.1175/1520-0450(1979)018<1072:AISAFE>2.0.CO;2
Date Available	2012-02-22T22:44:02+00:00
Date Issued	1979-08
Citation	Campbell, G. S., M. H. Unsworth, 1979: An Inexpensive Sonic Anemometer for Eddy Correlation. Journal of Applied Meteorology, 18, 1072–1077.
Journal Title	Journal of Applied Meteorology
Journal Volume	18
Journal Issue/Number	8
权利声明	Copyright Not Evaluated
Funding Statement (additional comments about funding)	Partial support was received from Washington Agricultural Research Center, Project 0184.
Publisher	American Meteorological Society
Language	English [eng]
Replaces	http://hdl.handle.net/1957/27952