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3.6 Wind Measurement, SoS and Temperature Reporting Format
The wind measurement can be output in one of the following formats:
1.
U, V & W, calibrated (ms-1)
2. U, V & W, uncalibrated (ms-1)
3. Polar & W, calibrated (° & ms-1)
4. Polar & W, uncalibrated (° & ms-1)
5. Axis velocities, uncalibrated (ms-1)
In U, V,W modes the alignment of the U and V axes can be selected as follows:-
Axis
U in line with Axis 1 when the anemometer is viewed from above.
Spar
U is in line with the main spar when viewed from above. In this configuration U, V, W are
labelled U', V', W'.
The U, V, W axis alignment options are shown in the relevant U, V, W axis definition drawing in
Section 10.
The axis alignment can be selected using the Configuration menu within RCOM (Section 5.17) or
the ALIGNUVW command if using your own PC software (Section 6.1.4).
The speed of sound measurement results can be output in one of the following formats:
1.
Speed of Sound (ms-1)
2. Sonic Temperature (K)
3. Sonic Temperature (°C)
Speed of sound measurements can be disabled.
The absolute temperature measurement results can be output in one of the following formats:
1.
Absolute Temperature (K)
2. Absolute Temperature (°C)
Absolute temperature measurements can be disabled.
3.7 Analogue Input Reporting Formats
If ASCII format is selected, analogue input measurements are output in volts to 4 decimal places. If
binary format is selected, analogue input measurements are output in 2's complement.
The number of analogue inputs to be measured can be set from 0 to 6.
3.8 Diagnostics
The system reports error codes if a failure is detected of the ultrasonic transducers, non-volatile
memory or PRT.
3.9 Confidence Tone
If this function is enabled then normal operation is indicated by an intermittent tone within the
anemometer.
3.10 Result Reporting
The selected parameters are blocked together along with the diagnostic results and block control
information to form a result message. The result message can either be in a Binary or ASCII format.
HS-50 Research Anemometer Page 8 Issue 02
Doc. No. 1199-PS-0032 November 2004