Home AHRS / MRU Ellipse-A

Ellipse A AHRS Unit Right
Ellipse A AHRS Unit Frontal
Ellipse A AHRS Unit Left

Ellipse-A Robust AHRS sensor for accurate orientation

Ellipse-A belongs to Ellipse series line of miniature, high-performance MEMS based Inertial Systems providing a reliable orientation and heave in a compact package. It includes an Inertial Measurement Unit (IMU), a built-in magnetometer and runs an on-board latest generation sensor fusion algorithm.
The Ellipse-A IMU embeds high performance, industrial grade MEMS accelerometers and gyroscopes. Coupled with a cutting edge calibration across its entire operating temperature range and advanced filtering techniques, these accelerometers and gyroscopes will provide excellent performance, even in highly vibrating environment.

Discover all Ellipse-A features and applications.

Ellipse-A features

Ellipse-A combines precise orientation and compact design, making it ideal for applications where space and weight are critical. It delivers precise orientation (roll, pitch, heading) and heave even in dynamic environments.
Supporting smooth motion and orientation tracking, Ellipse-A provides real-time, three-axis acceleration and angular rate measurements.
To achieve the best performance for all various applications, specific algorithm configurations have have been implemented to meet applications requirements. Sensor configuration is made easy through the sbgCenter software.

Vibrations Handling@2x
EFFICIENT VIBRATIONS HANDLING High performance accelerometers and gyroscopes with advanced filtering to provide efficient vibration rejection.
Magnetometer White
BUILT-IN MAGNETOMETER Ellipse embeds a 3-axis magnetometers with a start pf the art calibration, making them robust against transient magnetic disturbances.
Imu White Picto
HIGH RATE IMU DATA The Ellipse-A offers a high IMU output rate of up to 1 kHz, providing accurate data ideal for stabilization and pointing applications.
Auto Adjusting Heave White
AUTO ADJUSTING HEAVE Ellipse-A embeds a high end accelerometers and latest generation heave algorithm to provide an accurate heave for marine applications.
6
Motion Sensors (3-axis high performance MEM accelerometers and gyroscopes)
18
Motion Profiles – Air, Land and Marine
3 W
Power Consumption
218 000 h
Expected Computed MTBF
Read More →

Ellipse-A specifications

Motion & navigation performance

Roll/Pitch
0.1 °
Heading
0.8 ° Magnetic

Navigation features

Real time heave accuracy
5 cm or 5 %
Real time heave wave period
Up to 15 s
Real time heave mode
Automatic adjustment

Motion profiles

Land
Car, automotive, train/railway, truck, two wheelers, heavy machinery, pedestrian, backpack, off road
Air
Plane, helicopters, aircraft, UAV
Marine
Surface vessels, underwater vehicles, marine survey, marine & harsh marine

Accelerometer performance

Range
± 40 g
Bias in-run instability
14 μg
Random walk
0.03 m/s/√h
Bandwidth
390 Hz

Gyroscope performance

Range
± 450 °/s
Bias in-run instability
7 °/h
Random walk
0.15 °/√hr
Bandwidth
133 Hz

Magnetometer performance

Range
50 Gauss
Bias in-run instability
1.5 mGauss
Random walk
3 mGauss
Bandwidth
22 Hz

Environmental specifications & operating range

Ingress protection (IP)
IP-68 (1 hour at 2 meters)
Operating temperature
-40 ºC to 85 °C
Vibrations
8 g RMS – 20 Hz to 2 kHz
Shocks
500 g for 0.1 ms
MTBF (computed)
218 000 hours
Compliant with
MIL-STD-810

Interfaces

Output protocols
NMEA, Binary sbgECom, TSS, KVH, Dolog
Input protocols
N/A
Output rate
200 Hz, 1,000 Hz (IMU data)
Serial ports
RS-232/422 up to 2Mbps: up to 2 outputs
CAN
1x CAN 2.0 A/B, up to 1 Mbps
Sync OUT
PPS, trigger up to 200 Hz – 1 output
Sync IN
PPS, event marker up to 1 kHz – 5 inputs

Mechanical & electrical specifications

Operating voltage
5 to 36 VDC
Power consumption
300 mW
Weight (g)
45 g
Dimensions (LxWxH)
46 mm x 45 mm x 24 mm
Instrumented Buoy application

Ellipse-A applications

Ellipse-A is a versatile, all-in-one AHRS solution tailored for applications demanding precision in orientation and stability.
Advanced filtering and calibration techniques further ensure Ellipse-A resilience against vibrations, providing dependable data in dynamic environments.
Built with advanced MEMS technology, it delivers reliable, real-time attitude and heading data in challenging conditions, making it ideal for industries where accuracy and robustness are essential.

Discover all its applications.

Antenna Tracking Gimbal Camera Instrumented Buoy SATCOM OTM Subsea Navigation UGV Navigation USV Navigation

Compare Ellipse-A with other products

The following table helps you evaluate which AHRS products best aligns with your project’s requirements, whether you prioritize compactness, cost-efficiency, or high-performance navigation.

Discover how our range of AHRS products can bring exceptional stability and reliability to your operations.

Ellipse A AHRS Unit Right

Ellipse-A

OEM Ellipse A AHRS Unit Right

Ellipse Micro AHRS

Ekinox A AHRS Unit Right

Ekinox-A

Apogee A AHRS Unit Right

Apogee-A

Roll/pitch 0.1 ° Roll/pitch 0.1 ° Roll/pitch 0.02 ° Roll/pitch 0.01 °
Heading 0.8 ° Magnetic Heading 0.8 ° Magnetic Heading 0.03 ° Heading 0.02 °
Accelerometer range ± 40 g Accelerometer range ± 40 g Accelerometer range 8 g Accelerometer range ± 10 g
Gyroscope range ± 450 °/s Gyroscope range ± 450 °/s Gyroscope range 300 °/s Gyroscope range ± 200 °/s
Magnetometer range 50 Gauss Magnetometer range 50 Gauss Magnetometer range Magnetometer range
Datalogger Datalogger Datalogger 8 GB or 48 h @ 200 Hz Datalogger 8 GB or 48 h @ 200 Hz
Ethernet Ethernet Ethernet Full duplex (10/100 base-T), PTP master clock, NTP, web interface, FTP, REST API Ethernet Full duplex (10/100 base-T), PTP master clock, NTP, web interface, FTP, REST API
Weight (g) 45 g Weight (g) 10 g Weight (g) 400 g Weight (g) < 690 g
Dimensions (LxWxH) 46 mm x 45 mm x 24 mm Dimensions (LxWxH) 26.8 mm x 18.8 mm x 9.5 mm Dimensions (LxWxH) 100 mm x 86 mm x 58 mm Dimensions (LxWxH) 130 mm x 100 mm x 58 mm

Ellipse-A compatibility

sbgCenter

SbgCenter is the best tool to quickly start using your SBG Systems IMU, AHRS or INS. Data logging can be done through sbgCenter.
Logo Ros Drivers
Robot Operating System (ROS) is an open-source collection of software libraries and tools designed to simplify the development of robotic applications. It offers everything from device drivers to cutting-edge algorithms. ROS driver now therefore offers full compatibility across our entire product lineup.
Logo Pixhawk Drivers
Pixhawk is an open-source hardware platform used for autopilot systems in drones and other unmanned vehicles. It provides high-performance flight control, sensor integration, and navigation capabilities, allowing for precise control in applications ranging from hobbyist projects to professional-grade autonomous systems.

Our Ellipse-A case studies

Explore real-world use cases demonstrating how our Ellipse-A enhance performance, reduce downtime, and improve operational efficiency.
Learn how our advanced sensors and intuitive interfaces provide the precision and control you need to excel in your applications.

Vikings

Compact inertial navigation system for autonomous navigation

Autonomous robot

VIKINGS Autonomous Robot
Transmin

Ellipse-A chosen for remotely operated rockbreakers

Automated control system

Case Study Transmin
The Office of Naval Research MIZ

Wave measurement in the arctic sea

Instrumented buoy

Wave Buoy Artic Sea
See all the use cases

Ellipse-A production process

Discover the precision and expertise behind every SBG Systems products. This following video offers an inside look at how we meticulously design, manufacture, and test our high-performance inertial navigation systems.
From advanced engineering to rigorous quality control, our production process ensures that each product meets the highest standards of reliability and accuracy.

Watch now to learn more!

Miniature de la vidéo

Ask for a quotation: Ellipse-A

They talk about us & Ellipse-A

We showcase the experiences and testimonials from industry professionals and clients who have leveraged the Ellipse-A product in their projects.
Discover how our innovative technology has transformed their operations, enhanced productivity, and delivered reliable results across various applications.

University of Waterloo
“Ellipse-D from SBG Systems was easy to use, very accurate, and stable, with a small form factor—all of which were essential for our WATonoTruck development.”
Amir K, Professor and Director
Fraunhofer IOSB
“Autonomous large-scale robots will revolutionize the construction industry in the near future.”
ITER Systems
“We were looking for a compact, precise and cost-effective inertial navigation system. SBG Systems’ INS was the perfect match.”
David M, CEO

Ellipse-A FAQ section

Welcome to our FAQ section, where we address your most pressing questions about our cutting-edge technology and its applications. Here, you’ll find comprehensive answers regarding product features, installation processes, troubleshooting tips, and best practices to maximize your experience with Ellipse-A.
Whether you’re a new user seeking guidance or an experienced professional looking for advanced insights, our FAQs are designed to provide the information you need.

Find Your Answers Here !

What are wave measurement sensors?

Wave measurement sensors are essential tools for understanding ocean dynamics and improving safety and efficiency in marine operations. By providing accurate and timely data on wave conditions, they help inform decisions across various sectors, from shipping and navigation to environmental conservation.

 

Wave buoys are floating devices equipped with sensors to measure wave parameters such as height, period, and direction.

 

They typically use accelerometers or gyroscopes to detect wave motion and can transmit real-time data to shore-based facilities for analysis.

What is bathymetry?

Bathymetry is the study and measurement of the depth and shape of underwater terrain, primarily focused on mapping the seafloor and other submerged landscapes. It is the underwater equivalent of topography, providing detailed insights into the underwater features of oceans, seas, lakes, and rivers. Bathymetry plays a crucial role in various applications, including navigation, marine construction, resource exploration, and environmental studies.

 

Modern bathymetric techniques rely on sonar systems, such as single-beam and multibeam echo sounders, which use sound waves to measure water depth. These devices send sound pulses toward the seafloor and record the time it takes for the echoes to return, calculating depth based on the speed of sound in water. Multibeam echo sounders, in particular, allow for wide swaths of the seafloor to be mapped at once, providing highly detailed and accurate seafloor representations.

 

Bathymetric data is essential for creating nautical charts, which help guide vessels safely by identifying potential underwater hazards like submerged rocks, wrecks, and sandbanks. It also plays a vital role in scientific research, helping researchers understand underwater geological features, ocean currents, and marine ecosystems.