Gyroscopes; Surface Form Factor - SBG Navsight Ekinox IMU Hardware Manual

Navsight Solution – Hardware Manual

2.2.1.2. Gyroscopes

Full scale (°/s)
In run bias instability (°/hr)
Angular Random Walk (°/√hr)
Bandwidth (Hz)
Orthogonality (°)

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
Dimensions
Weight
Input power voltage
Power consumption
Environmental specifications
IP rating
Humidity
Operating Temperature
range
Storage Temperature range -40 to 85°C
Shocks
Operating Vibrations
MTBF
Calibration interval
G4
± 300
0.5
0.14
60
< 0.02
Anodized Aluminum (6061)
5.8 x 10 x 8.6 cm
426 g
12 – 36V DC – isolated power supply
1.6W typical.
IP-68 (24 hours at 1 meters)
Sealed, no limit
-20 to 60°C – specified range
-40 to 71°C – operating range
500 g for 0.3 ms
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)
50.000 hours
None required, maintenance free
10/74
Remarks
Allan variance – @ 25°C
Allan variance – @ 25°C
Attenuation of 3 dB
Over temperature range
Figure 2.3: Ekinox Surface IMU
NAVSIGHTHM.1.3