VB20SL User Guide
Page 24 of 30
Specification
GPS
Velocity
Distance
Accuracy
0.1 Km/h (averaged over 4
samples)
Accuracy
0.05% (<50cm per Km)
Units
Km/h or Mph
Units
Metres / Feet
Update rate
20 Hz
Update rate
20Hz
Maximum velocity
1000 Mph
Resolution
1cm
Minimum velocity
0.1 Km/h
Height accuracy
6 Metres 95% CEP**
Resolution
0.01 Km/h
Height accuracy with
DGPS
2 Metres 95% CEP**
Brake Stop Accuracy
Accuracy
+/- 10cm
Absolute Positioning
Time
Accuracy
3m 95% CEP**
Resolution
0.01 s
Accuracy with DGPS
1.8m 95% CEP**
Accuracy
0.01 s
Update rate
20 Hz
Resolution
1 cm
YAW Rate
Yaw rate RMS Noise
0.75 degrees per second***
Heading
Power
Resolution
0.01°
Input Voltage range
6v-30v DC
Accuracy
0.1°
Current
Typically 560mA
Acceleration
Environmental and physical
Accuracy
0.5%
Weight
Approx500 grammes
Maximum
20 G
Size
119mm x 128mm x 30mm
Resolution
0.01 G
Operating
temperature
-30
C to +60
C
Update rate
20Hz
Storage
temperature
-40
C to +80
C
Memory
Definitions
SD/MMC Card
Recording time
Dependent on flash card
capacity*
** CEP = Circle of Error Probable
95% CEP (Circle Error Probable) means 95% of the time the position readings will
fall within a circle of the stated diameter
* Approximately 4.3Mb per hour used when logging GPS data at
20Hz
*** Note that for comparison, the VBOX YAW02 or IMU rate sensor has an RMS noise of 0.05 degrees per second, so it should be noted that the Slip Angle sensor calculated YAW rate is
significantly noisier than a solid state sensor for yaw rate measurement.
