Xylem SonTek FlowTracker2, Руководство пользователя

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SonTek – a Xylem brand
FlowTracker2 User’s Manual (January 2019)
170
e) Tilt,
f) Velocity Angle,
g) Probe Depth,
h) Battery,
i) Pressure.
j) To select a variable,
i). Use the up or down arrow key to view a
variable,
k) To accept the velocity measurement,
i). Press the Right Soft Key.
l) To REDO velocity measurement,
i). Press the Left Soft Key.
Measurement
The conventions and graphic display features used for displaying Velocity and SNR raw
data are defined under
Raw Data Display .
Properties associated with the variable output from the numerical calculations
performed on raw data collected is defined in
Table 9:6
,
Table 9-6 - Review Point Measurement
Variable Description Units Decimal
Warning
Warning supplied based on quality control
criteria
n/a n/a
Samples Total number of sample received number n/a
Spikes Number of spikes removed from mean velocity number n/a
Vel. X
Mean X velocity component of all samples.
Velocity is despiked and mounting correction
applied (if applicable).
m/s or ft/s 4
Vel. Y
Mean Y velocity component of all samples.
Velocity is despiked and mounting correction
applied (if applicable).
m/s or ft/s 4
Vel. Z
Mean Z velocity component of all samples.
Velocity is despiked and mounting correction
applied (if applicable).
m/s or ft/s 4
σV. X
Standard error of X velocity component. m/s or ft/s 4
σV. Y
Standard error of Y velocity component. m/s or ft/s 4
σV. Z
Standard error of Z velocity component. m/s or ft/s 4
SNR. 1 Signal to noise ratio of Beam 1 dB 3
SNR. 2 Signal to noise ratio of Beam 2 dB 3
SNR. 3 Signal to noise ratio of Beam 3 dB 3
Angle Flow angle relative to X direction Degree 2
Bnd Boundary QC value n/a n/a
Tilt
Mean wading rod angle during point velocity
measurement
Degree 2