Datasheet
2 sensing.honeywell.com
Transportation Attitude Reference System (TARS Series)
Table 1. Sensor Specifications
Characteristic Min. Typ. Max. Unit
Gyroscope 3 axis performance
Angular rate range
1
-245 – +245 deg/s
Angular rate resolution – 7.8125 – mdps
In-run bias stability – 1 – mdps
Rate noise density – 0.004 – deg/s/sqrt Hz
Offset (0°C to 50°C) -0.8 – +0.8 deg/s
Offset (-40°C to 85°C) -1.6 – +1.6 deg/s
Accelerometer 3 axis performance
Acceleration range
1
-78.48 – +78.48 m/s
2
Acceleration resolution – 0.01 – m/s
2
In-run bias stability – 50 – mg
Acceleration noise density – 65 – mg/sqrt Hz
Offset (0°C to 50°C) – ±0.05 – m/s
2
Offset (-40°C to 85°C) – ±0.15 – m/s
2
Attitude (pitch and roll) performance
Range
1
-85 – +85 deg
Resolution – 0.058 – deg
Static error (0°C to 50°C) – ±0.3 – deg
Static error (-40°C to 85°C) – ±0.9 – deg
Translational acceleration error – ±0.5 – deg
Centripetal acceleration error – ±0.5 – deg
1
Sensors are calibrated in the following ranges: ±60 deg/s for gyroscope angular rate, ±9.81 m/s
2
for acceleration, and ±30 deg for pitch
and roll. Calibrated ranges can be extended to maximums shown with deviation to performance specifications.
• Pitch and roll outputs per PGN61481 (Axes marking on the housing is Z-down convention required for pitch and roll outputs per J1939.)
• Acceleration outputs per PGN61485 (Acceleration data is outputted per Z-up convention required by J1939.)
• Angular rate outputs per PGN61482 (Angular rate data is outputted per Z-down convention required by J1939.)
Table 2. Electrical Specifications • TARS-LCASS Catalog Listing
Characteristic Min. Nominal Max. Unit
Supply voltage 4.5 5 5.5 V
Supply current – – 100 mA
Start-up time 500 – 2000 ms
Short circuit protection CAN output shorted to supply voltage or ground without damage
Open circuit protection Single-line interruption and multiple-line interruption
Reset response Automatic after voltage dropout
CAN output characteristics per SAE J1939
CAN Bus data rate – 250 – kBaud
Signal update rate – – 100 Hz