Ellipse 2 Micro IMU

Ellipse 2 Micro Series: an industrial quality micro-sensor

SBG Systems designed its Ellipse 2 Micro Series range with the aim of providing users with a new and even more compact navigation system (less than 2.7 cm long for just 10 g) without compromising on efficiency and performance. The Ellipse 2 Micro Series offers 3 models:

• A 9-axis inertial measurement unit (Ellipse 2 Micro IMU)
• An altitude and heading reference system with an extended Kalman filter
• An inertial navigation system with all the functionalities of the previous models and an additional connection to a GNSS receiver and odometer

In the version shown here, SBG Systems brings users a precise, stable, long-lasting and economical navigation system. Its small size means it can be integrated into all kinds of projects requiring an on-board IMU: autonomous land vehicles, gimbal cameras, automated surveillance systems, drones, etc.

A complete development kit for your IMU

The SBG Systems IMU comes with an evaluation board that can adapt to each of the 3 models in the Ellipse 2 Micro Series. All programming takes place using sbgCenter, a Windows-based software allowing you to not only visualise the data transmitted by the IMU in real time, but also:

• quickly configure the unit and analyse data over time
• export this data to Excel, Matlab or Google Earth

The IMU comes with a C library, so you can further broaden your experience by playing with some source code examples.

Which SBG Systems Ellipse 2 Micro model is for me?

Below you will find a summary and code details for each of the Ellipse 2 Micro Series models, to help you choose the right one depending on your project design needs.

Technical specifications of the Ellipse 2 Micro IMU

• 3 gyroscopes
• 3 accelerometers
• 3 magnetometers
• 1 temperature sensor
• Accelerometer specifications:
  • Range: +/- 16 g
  • Gain stability: 1000 ppm
  • Non-linearity: 1500 ppm
  • Bias stability: +/- 5 mg
  • Random walk/noise density: 57 µg/√Hz
  • Bias in-run instability: 14 µg
  • VRE: 50 µg/g² RMS
  • Alignment error: < 0.05°
  • Bandwidth: 390 Hz
• Gyroscope specifications:
  • Range: +/- 450°/s or +/- 1000°/s
  • Gain stability: 500 ppm
  • Non-linearity: 50 ppm
  • Bias stability: +/- 0.2°/s
  • Noise density: 0.15°/√hr
  • Bias in-run instability: 7°/h
  • VRE: 1°/h/g² RMS
  • Alignment error: < 0.05°
  • Bandwidth: 133 Hz
• Magnetometer specifications:
  • Range: +/- 50 Gauss
  • Gain stability: < 0.5%
  • Non-linearity: < 0.1% FS
  • Bias stability: +/- 1 mGauss
  • Noise density: 3 mGauss
  • Bias in-run instability: 1.5 mGauss
  • Alignment error: < 0.1°
  • Bandwidth: 22 Hz
• Interfaces:
  • Aiding sensors: GNSS: NMEA, UBX, Septentrio, Novatel
  • Output rate: 200 Hz
  • Main serial interface: 1 RS422 or 2 RS232, USB - up to 921,600 bps
  • Serial protocols: binary eCom protocol, NMEA, ASCII, TSS
  • CAN interface: 2.0 A/B - up to 1 Mbit/s
  • Pulse inputs: events, PPS, DMI
  • Pulse outputs: synchronisation (PPS)
  • 2 inputs/outputs
• Dimensions: 26.8 × 18.8 × 9.5 mm
• Weight: 10 g
• Shocks: < 2000 g
• Operating vibrations:
  • @ +/- 8 g: 3 g RMS - 20 Hz to 2 kHz - STD - 810 g
  • @ +/- 16 g: 8 g RMS - 20 Hz to 2 kHz - STD - 810 g
• Aluminium enclosure
• Operating temperature: -40 to 85 °C
• Humidity: 98 % - non-condensing
• Mean time between failures: 50,000 h
• Input voltage: 4-15 V
• Power consumption: 400 mW
• Development kit included
• 2 year warranty

Resources for the Ellipse 2 Micro IMU

Remain in full control of your Ellipse 2 Micro IMU thanks to these online documents:

• Ellipse 2 Micro Series brochure – Ellipse 2 Micro IMU (en)