Instruction manual
OCM Pro CF
®
OCM Pro CF - Rev. 09 as of 07.06.2016
page 27
Fig. 6-12
Computed 3-dimensional flow profile
From this flow velocity distribution and the channel shape, the channel dimen-
sions and the filling level the flow volume is calculated and displayed. This vol-
ume can either be a free programmable analog signal or an impulse signal as
well.
6.6 Flow velocity via Surface Radar OFR
The OFR surface radar OFR is aligned as to face towards the flow direction. Ini-
tially emitting radar waves, the instrument then receives the waves reflected
from the water surface. From the difference between transmitted and received
frequencies it is possible to compute the velocity of the movement (Radar-
Doppler-Effect).
By using complex integrated algorithms the transmitter now calculates the fol-
lowing values from the determined velocity of the water surface:
-
The flow profile
-
The average velocity of the wetted geometry
Fig. 6-13
Measurement using the surface radar
