Navsight Solution
– Hardware Manual
NAVSIGHTHM.1.4
2.2.1.2. Gyroscopes
G4
Remarks
Full scale (°/s)
± 300
In run bias instability (°/hr)
0.5
Allan variance – @ 25°C
Angular Random Walk (°/√hr)
0.14
Allan variance – @ 25°C
Bandwidth (Hz)
60
Attenuation of 3 dB
Orthogonality (°)
< 0.02
Over temperature range
2.2.1.3. Surface form factor
The Ekinox 2 enclosure is composed of two anodized aluminum
parts (6061), one for the cover and one for the base plate. The
device uses high quality alloys and connectors to offer a full IP-68
enclosure and a good resistance to harsh environments.
The Ekinox IMU connector is a high quality push pull connector
that offers IP-68 protection even unconnected.
Warning: The Ekinox IMU surface model is not designed
for prolonged operation in salt water environments.
Check section Maintenance for more details about
operation in sea water environments.
The table below summarizes all mechanical and environmental specifications.
Electrical and Mechanical Specifications
Enclosure materials
Anodized Aluminum (6061)
Dimensions
5.8 x 10 x 8.6 cm
Weight
426 g
Input power voltage
12 – 36V DC – isolated power supply
Power consumption
1.6W typical.
Environmental specifications
IP rating
IP-68 (24 hours at 1 meters)
Humidity
Sealed, no limit
Operating Temperature
range
-20 to 60°C – specified range
-40 to 71°C – operating range
Storage Temperature range -40 to 85°C
Shocks
500 g for 0.3 ms
Operating Vibrations
3g RMS – 20Hz to 2 kHz as per MIL-STD-810G (A2 range options)
8g RMS – 20Hz to 2 kHz as per MIL-STD-810G (A3 range options)
MTBF
50.000 hours
Calibration interval
None required, maintenance free
10/73
Figure 2.3: Ekinox Surface IMU
