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KRIO
Gyrocompass Navigation for Special Missions
EGI/AHRS/IMU
Gyrocompass and Stabilization
KRIO is Civitanavi Systems’ response to the requirement for a dual use, ITAR free Inertial Measurement Unit for commercial, defence and industrial applications providing customers with greater flexibility in its use, system accuracy and function. The fully flexible design provides for a multiple range of capabilities from tactical through to a complete gyrocompassing AHRS function, weighing a mere 1.4Kg and consuming less than 4 Watts of input power, it is the world’s lightest, smallest and lowest power consuming Inertial Measurement Unit available in the market today. The EGI/AHRS version of the KRIO is capable of meeting the very demanding and precise navigation capability required by airborne applications.
All KRIO configurations can be installed with variations of software, including:
• Embedded GNSS INS (EGI)
• Attitude and Heading Reference System (AHRS)
• Motion Compensation
• Radar Stabilization
• Guidance
• Flight Control Software
• EO Stabilization
EGI/AHRS/IMU Gyrocompass capable
Heading accuracy (1σ)
0.2 deg seclat
Roll/Pitch (1σ)
0.1 deg
Embedded aiding source
GNSS (RTK optional)
IMU GYROSCOPES
Type
Closed loop FOG
Bias stability (1σ)
<0.006 deg/h
Bias repeatability (1σ)
0.05 deg/h
ARW
<0.0055 deg / sqrt(h)
Scale factor accuracy (1σ)
25ppm
Scale factor linearity (1σ)
10ppm
Range
±400 dps
Bandwidth (-3dB)
> 500Hz (optional > 1k Hz)
IMU ACCELEROMETERS
Type
Quartz
Bias stability
< 10 µg
Bias repeatability (1σ)
500 µg
Scale factor accuracy (1σ)
100 ppm
VRW
< 25 µg/sqrt(Hz)
Range
± 60 G
Bandwidth (-3db)
> 500Hz
Position Performances
Horizontal Accuracy (GNSS aided)
2m CEP50
Vertical Accuracy (1σ)
2m
Interfaces
1 Full duplex RS-422 and optional SDLC
Environmental
Operating Temperature
-40°C to 71°C
EMI/Vibration/Shock
DO-160G
Phisical
Size (WxHxD)
130x88x130 mm
Mass
< 1.4Kg
Power Supply
Power Consumption
< 4W
Operative Voltage
18 ÷ 36VDC
