CSAT3B Three-Dimensional Sonic Anemometer
27
FIGURE 7-2. Real-time data subscreen while connected to CSAT3B
with
Device Configuration Utility
7.2 Orientation
The three components of wind are defined by a right-handed orthogonal
coordinate system. The CSAT3B points into the negative x direction (see
). If the anemometer is pointing into the wind, it will report a
positive u
x
wind.
In general, the anemometer should be pointed into the prevailing wind to
minimize interference from support structures such as the tower or tripod.
Typically, the anemometer should be mounted level to the ground as described
(p. 29)
7.3 Mounting
The CSAT3B is supplied with mounting hardware to attach it to the end of a
horizontal pipe with an outer diameter of 3.33 cm (1.31 in), such as the
Campbell Scientific CM202, CM204, or CM206 crossarm (referred to
generically as a CM20X crossarm). The following steps describe the normal
mounting procedure.