Measuring instruments and equipment: Swiss Quality

FOG INS/GNSS
zGo - FA
zGo - FA
zGo - FA, surrounding image

zGo - FA is a compact size strapdown inertial navigation system (SINS) based on Fiber Optic Gyroscopes (FOG) and MEMS accelerometers. The system has internal high-frequency GNSS receiver (GPS, GLONASS, SBAS, Galileo and Beidou) and barometrical sensor. The combination of sensors data and the GNSS information allows the system to provide accurate orientation and calculate the linear speeds of an object, its coordinates and altitude. The system has the ability to calculate the robust position and orientation during GNSS outages (a limited time lapse for position). Additionally, the system can also determine the robust initial value of heading even in absence of the magnetic sensor signal. Moreover, the system has a set of various navigation algorithms proposed for different vehicles to achieve the best accuracy results.


zGo - FA features

  • High frequency full navigation solution: angular velocities, accelerations, angles, speeds and coordinates
  • Stable performance from -40 °C to +60 °C due to factory calibration
  • The system includes:
    • 64 GB of internal data storage
    • An avionic and a land navigation kits with additional external sensors
    • Tuning support through an HTTP interface
    • A free demo PC software for Windows

zGo - FA applications

  • Robotics
  • UAV flight control systems
  • Aircrafts control and navigation
  • Land surveying
  • Marine surveying
  • Antennas control systems
  • Targeting and stabilization of cameras
  • Remotely Operated Vehicles
  • Train navigation and track geometry measuring systems

zGo - FA sensors characteristics


Angular rate 550 °/sec
Gyro bias repetability at fixed temperature 0.1 °/h
Gyro bias repetability at changing temperature 0.3 °/h
Acceleration rate 10 g
Acc. bias repetability 1.0 mg

zGo - FA system characteristics


Dimensions 190 x 125 x 95 mm
Weight 2.5 kg
Power 12...30 VDC, 10W
Temperature -40 °C ... +60 °C
Vibration 5 g, 20 Hz...20 KHz
Shock 50 g, 3 msec
MTBF 20000 hrs

zGo - FA measurement ranges


Attitude angles range Roll: ± 180°
Pitch: ± 90°
Heading: 0...360°
Linear speed range 0...250 m/s
Altitude range -500...9000 m
Static pressure range 450...850 mmHg
Operating coordinates Latitude: ±70 °
Longitude: ±180 °

zGo - FA input/output characteristics


Output interfaces RS-422 x 2
RS-232 x 1
Ethernet
Sensors sampling rate 200 Hz (base setup)
INS output data rate 100 Hz (base setup)
GNSS output data rate 10 Hz (base setup)
GPIO signals PPS, Power, Self-test Calculation, Alignment

zGo - FA accuracy characteristics (1σ)


INS/GNSS mode

Stand alone navigation kit
INS/GNSS + ADS + magnetometer mode

Avionic navigation kit
INS/GNSS + odometer mode

Land navigation kit
GNSS signal Good Lost Good Lost Good Lost
Attitude 0.1 ° 0.3 ° 0.1 °
Heading Initial heading accuracy: (1.2 · sec(φ)) °
1.2 · sec(φ) ° + 0.5 °/h 0.5 °(2) + 0.3 °/h (3) 0.3 ° (1) drift 0.3 °/h
Magnetic heading not supported 0.5 not supported
Tracking angle 0.3 ° (1) drift 0.5 °/h 0.3 ° (1) drift 0.3 °/h 0.3 ° (1) drift 0.3 °/h
Linear speed 0.1 m/s 20 m/s 0.1 m/s 1.5 m/s 0.1 m/s
Coordinates 6 m 4 NM per first 10 minutes 6 m 5 NMPH (2)(4) 6 m 0.5 % of DT per first hour (1)(4)
Altitude 6 m 10 m 6 m 10 m 6 m 10 m

Note: Technical specifications can be changed upon customer's request
(1) After 10 seconds moving with the speed more than 5 m/s including good GNSS signal
(2) Using magnetic heading correction while standing or flying straight
(3) Without magnetic heading correction while maneuvering
(4) DT - distance traveled, NM - nautical miles, NMPH - nautical miles per hour


More information about zGo - FA (.pdf)


Fin-de-Praz 24, CH-2024 St-Aubin-Sauges, Switzerland      phone +41 (0)32 835 35 15  www.zgoptique.swiss