Northfinder™/
GCAH-12C
Attitude and Direction Reference System (MEMS-AHRS)

Real-time attitude and heading angles are output without GPS

Product Features

  • Achieves a more compact size, higher durability, and lower cost compared to RLG and FOG products by adopting MEMS gyroscopes
  • Automatically calculates attitude and heading based on inertial sensor outputs
  • Outputs real-time attitude orientation even in a area where GNSS is not available

Product Applications

  • Excavation applications, buried pipe investigation
  • Inertial navigation systems for aerospace and marine vehicles
  • Automatic control for railways, automobiles, and industrial equipment
Item Value
Static angles Azimuth Range <±180°
Accuracy < ±0.8°x (cos λ·cos θ)-1(1σ)(λ : Latitude) *1
Attitude Range Pitch(θ) : ±90°, Roll(φ) : ±180°
Offset error Pitch: <0.1°rms,Roll: <0.1°rmsx (cos θ)-1
Repeatability Pitch : < 0.02°(1σ),Roll : < 0.02°x (cos θ)-1 (1σ)
Dynamic angles
Azimuth
Attitude
Error < 0.5°max (Without angle drift)
Resolution < 0.05°
Angle drift < 2°/h max
Settling time 1.5 minutes (static conditions)
Electrical Interface D-sub 15
Communication protocol RS-422 (Baud rate: 230.6 kbps)
Size & Weight Housing 36 x 43 x 266 mm (Φ30 x 257 mm), 0.7 kg
Power supply voltage 6.5 to 24 VDC (Typical 12 VDC)
Power consumption < 1.5 W
Temperature range -20 to 65 ℃ (use & storage)

* 1 Target rms value

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