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Ellipse A AHRS OEM Unit Right
Ellipse A AHRS OEM Unit Hand
Ellipse A AHRS OEM Unit Left

OEM Ellipse-A Compact & robust AHRS sensor for accurate orientation

OEM 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.

This OEM version 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 its features and applications.

Discover All features

OEM 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, it 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 FOR GNSS-DENIED AREAS Ellipse embeds a 3-axis magnetometer with a start pf the art calibration, making them robust against transient magnetic disturbances and providing a reliable fallback when GNSS is unavailable.
Imu White Picto
HIGH RATE INERTIAL MEASUREMENT UNIT DATA This OEM version offers a high Inertial Measurement Unit (IMU) output rate of 200 Hz, 1,000 Hz (IMU data), providing accurate data ideal for stabilization and pointing applications.
Auto Adjusting Heave White
AUTO ADJUSTING HEAVE ALGORITHM This AHRS embeds a high end accelerometers and latest generation heave algorithm to provide an accurate heave for marine applications.
6
Motion Sensors: 3 MEMS capacitive accelerometers and 3 high performance MEMS gyroscopes.
18
Motion Profiles: Air, Land and Marine.
2.5 W
AHRS power consumption.
218 000h
Expected computed MTBF.
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OEM Ellipse-A specifications

Motion & navigation performance

Roll/Pitch
0.1 °
Magnetic Heading
0.8 °

Navigation features

Real time heave accuracy
5 cm or 5 % of swell
Real time heave wave period
0 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

Full scale (Gauss)
50 Gauss
Scale factor stability (%)
0.5 %
Noise (mGauss)
3 mGauss
Bias stability (mGauss)
1 mGauss
Resolution (mGauss)
1.5 mGauss
Sampling rate (Hz)
100 Hz
Bandwidth (Hz)
22 Hz

Environmental specifications & operating range

Enclosure
Aluminum, conductive surface finish
Operating temperature
-40 °C to 78 °C
Vibrations
8g RMS – 20Hz to 2 kHz
Shocks (Operational)
100g 6ms, half-sine wave
Shocks (Non-operational)
500g 0.1ms, half-sine wave
MTBF (computed)
218 000 hours
Compliant with
MIL-STD-810G | MIL-HDBK-217

Interfaces

Output protocols
NMEA, Binary sbgECom, TSS, KVH, Dolog
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
2.5 to 5.5 VDC
Power consumption
250 mW
Weight (g)
8 g
Dimensions (LxWxH)
29.5 x 25.5 x 11 mm
Boat Motion Monitoring

OEM Ellipse-A applications

OEM 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 Boat Motion Monitoring Gimbal Camera Instrumented Buoy SATCOM OTM Subsea Navigation UGV Navigation USV Navigation

Compare with other products

Compare our most advanced inertial range of sensors for navigation, motion, and heave sensing.
Full specifications can be found in the Hardware Manual available upon request.

Ellipse A AHRS OEM Unit Right

OEM Ellipse-A

OEM Ellipse A AHRS Unit Right

Ellipse Micro AHRS

Roll/pitch 0.1 ° Roll/pitch 0.1 °
Heading 0.8 ° Magnetic Heading 0.8 ° Magnetic
Accelerometer range ± 40 g Accelerometer range ± 40 g
Gyroscope range ± 450 °/s Gyroscope range ± 450 °/s
Magnetometer range 50 Gauss Magnetometer range 50 Gauss
Weight (g) 8 g Weight (g) 10 g
Dimensions (LxWxH) 29.5 x 25.5 x 11 mm Dimensions (LxWxH) 26.8 mm x 18.8 mm x 9.5 mm

Compatibility drivers and software

Logo Qinertia Post Processing Software
Qinertia is our own PPK software that offers powerful post-processing capabilities that transform raw GNSS and IMU data into highly accurate positioning and orientation solutions.
Logo Ros Drivers
The 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.
Logo Trimble
Reliable and versatile receivers that offer high-accuracy GNSS positioning solutions. Used across various industries including construction, agriculture, and geospatial surveying.
Logo Novatel
Advanced GNSS receivers offering precise positioning and high accuracy through multi-frequency and multi-constellation support. Popular in autonomous systems, defense, and surveying applications.
Logo Septentrio
High-performance GNSS receivers known for their robust multi-frequency, multi-constellation support and advanced interference mitigation. Widely used in precision positioning, surveying, and industrial applications.

Our case studies

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

Transmin

Ellipse-A chosen for remotely operated rockbreakers

Automated control system

Case Study Transmin
Aquatica Submarines

Expedition Survey Belize’s Great Blue Hole With Ellipse INS sensor

Surveying

Stingray Submarine
Zen Microsystems

Motorcycles roll and lean acceleration analysis

Tire testing

INS Ellipse N Integration For Tires Testing
See all the use cases

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 a quotation for OEM Ellipse-A

They talk about us

We showcase the experiences and testimonials from industry professionals and clients who have leveraged our products 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

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.
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 the difference between AHRS and INS?

The main difference between an Attitude and Heading Reference System (AHRS) and an Inertial Navigation System (INS) lies in their functionality and the scope of the data they provide.

 

AHRS provides orientation information—specifically, the attitude (pitch, roll) and heading (yaw) of a vehicle or device. It typically uses a combination of sensors, including gyroscopes, accelerometers, and magnetometers, to calculate and stabilize the orientation. The AHRS outputs the angular position in three axes (pitch, roll, and yaw), allowing a system to understand its orientation in space. It is often used in aviation, UAVs, robotics, and marine systems to provide accurate attitude and heading data, which is critical for vehicle control and stabilization.

 

A INS not only provides orientation data (like an AHRS) but also tracks a vehicle’s position, velocity, and acceleration over time. It uses inertial sensors to estimate movement in 3D space without relying on external references like GNSS. It combines the sensors found in AHRS (gyroscopes, accelerometers) but may also include more advanced algorithms for position and velocity tracking, often integrating with external data like GNSS for enhanced accuracy.

 

In summary, AHRS focuses on orientation (attitude and heading), while INS provides a full suite of navigational data, including position, velocity, and orientation.