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RACELOGIC Support Centre

12 - Dual Antenna Speed Sensor Technical Specification

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Specifications

Velocity

Accuracy 0.1 km/h (averaged over 4 samples)
Units km/h or mph
Update Rate 100 Hz
Maximum Velocity 1000 mph
Minimum Velocity 0.1 km/h
Resolution 0.01 km/h
Latency 6.75 ms

 

Distance

Accuracy 0.05% (>50 cm per km)
Units m / ft
Update rate 100 Hz
Resolution 1 cm

 

Time

Accuracy 0.01 s
Resolution 0.01 s

 

Absolute Positioning

Accuracy 3 m (95 % CEP*)
Accuracy with SBAS DGPS >1 m (95 % CEP*)
Accuracy with RTCMV2 DGPS 80 cm (95 % CEP*)
Accuracy with RTK DGPS*** 2 cm (95 % CEP*)
Resolution 1.8 mm
Update Rate 100 Hz
Height Accuracy 6 m (95% CEP*)
Height Accuracy with DGPS 2 m (95% CEP*)

 

Acceleration

Accuracy 0.5 %
Maximum 20 g
Resolution 0.01 g
Update Rate 100 Hz

 

Heading

Accuracy 0.1°
Resolution 0.01°

 

Brake Stop Accuracy (Trigger activated)

Accuracy +/- 1.8 cm**

 

Note: Channels highlighted in Blue are for SL series units only.

Slip Angle Accuracies

Pitch and Roll Angle Accuracies

<0.2° rms at 0.5m antenna separation <0.14° rms at 0.5m antenna separation
<0.1° rms at 1.0m antenna separation <0.07° rms at 1.0m antenna separation
<0.05° rms at 2.0m antenna separation <0.035° rms at 2.0m antenna separation
<0.04° rms at 2.5m antenna separation <0.028° rms at 2.5m antenna separation


Definitions

* Circle of Error Probable (CEP): 95 % of the time the position readings will fall within a circle of the stated diameter

** Based on <50 m brake stop distance
 

 

CAN Output

Output data rate 125 kbit/s, 250 kbit/s, 500 kbit/s and 1 Mbit/s selectable baud rate. Software controlled CAN termination.
Data available  Position, vehicle speed, heading, lateral acceleration, longitudinal acceleration, satellite count, time, radius of turn, altitude, Distance from Trigger, Trigger Time, Trigger Velocity, True Heading. Slip angle, Yaw rate, Pitch/Roll angle, Longitudinal and Lateral Velocity

 

RS232 Output

Output data rate Up to 100 Hz
Data available NMEA or RL Serial

 

Analogue

Output data rate 0 – 5 V DC
Data available Either Speed, Lateral Acceleration, Longitudinal Acceleration, or Lap Beacon

 

Digital

Output data rate Low = 0 V, High = 5 V, Max. frequency 4.4 kHz
Data available Speed or Lap Beacon 

 

Inputs

Input Voltage range 1st Gen = 6.5 – 30 VDC  / 2nd Gen = 7 – 30 V DC
Power 3.7 W (maximum)
GPS Antenna 5 V Active Antenna (inc)
Digital Input Cold Start Activate / Set Lap beacon Position
LED Power, Satellite Count,  Event Out

 

Environmental and physical

Weight Approx 250 g
Size 140 mm x 92 mm x 31.85 mm
Operating Temperature -30°C to +70°C
Storage Temperature -40°C to +85°C
Connectors Deutsch ASDD Autosport; Rated IP66 

Dimensions

V2

Speed Sensor Dimensions Dual Antenna V2.png
100 Hz Dual Antenna Speed Sensor (V2)

V3/4

Speed Sensor Dimensions Dual Antenna V34.png
100 Hz Dual Antenna Speed Sensor (V3 and V4)

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