Centrale inertielle SBG Ellipse A Marine AHRS

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Inercialna enota SBG Ellipse A Marine AHRS

The SBG Ellipse A Marine AHRS inertial measurement unit is a compact and robust system designed for precise orientation (0.1° roll/pitch, 0.8° heading) and heave (5 cm) in marine environments, with an integrated algorithm.

Model: Ellipse A

Ellipse A Ellipse D

Konfiguracija: Samostojna centralna enota

Samostojna centralna enota Popolna oprema

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2.616,00€

DDV vključen Dostava se izračuna ob plačilu.

Na zalogi

Free pickup point from €150 in France
Pickup at Skysat possible

Custom installation

Trust Skysat to install the equipment on board

Request a quote

Installers near you

thanks to our network of certified installers

Find an installer

Support service

Choose complementary installation support

Technical specifications

Vrsta sistema	AHRS
Morska uporaba	Navigation, Stabilisation, Levés bathymétriques
Vgrajen GNSS	non
RTK / PPK	non
Natančnost nagiba/valjanja (°)	0.1
Natančnost smeri (°)	0.8
Heave v realnem času	oui
Vmesniki	RS-232, RS-422, USB, CAN
Izhodni protokoli	NMEA, sbgECom, REST API, TSS, KVH, Dolog
Stopnja IP	IP68
Min. temperatura (°C)	-40.0
Maks. temperatura (°C)	85.0
Vhodna napetost (V)	5 - 36 VDC
Poraba (W)	0.3
Dimenzije (mm)	46 x 45 x 24 mm
Teža (g)	45.0

Detailed description

Inercialna enota SBG Ellipse A Marine AHRS je kompaktni in robusten sistem za določanje smeri in nagiba (AHRS), zasnovan za natančno določanje orientacije in valjanja v dinamičnih morskih okoljih. Vključen je inercialni merilni sistem (IMU) na osnovi industrijske MEMS tehnologije in kalibriranih magnetometrov, ki zagotavlja zanesljive podatke za zahtevne aplikacije, kot so podvodna navigacija, stabilizacija opreme in sledenje gibanju na površini.

Tehnične zmogljivosti in natančnost

Ellipse A zagotavlja izjemno natančnost v določanju smeri z napako 0,1° v nagibu in valjanju v statičnem načinu ter 0,4° v dinamičnem morskem načinu. Magnetni smernik je zagotovljen z natančnostjo 0,8° v statičnem načinu po kalibraciji, pod homogenim magnetnim poljem. Algoritem za valjanje nove generacije samodejno prilagaja periodo valov (do 15–20 sekund), kar zagotavlja natančnost 5 cm ali 5 % (odvisno od tega, katera vrednost je višja), bistveno za batimetrična merjenja in sisteme dinamičnega pozicioniranja.

Vgrajeni senzorji vključujejo pospeškomere (morski razpon ±8 g), giroskope (morski razpon ±450 °/s) in magnetometre (razpon 50 Gauss). Ti senzorji so povezani z naprednimi filtri za učinkovito obvladovanje vibracij (odpornost 8 g RMS od 20 Hz do 2 kHz po MIL-STD 810G) in sofisticirano magnetno kalibracijo za povečano robustnost proti prehodnim magnetnim motnjam. Izhodna hitrost podatkov IMU lahko doseže 1 kHz, kar zagotavlja optimalno odzivnost za aplikacije stabilizacije in usmerjanja.

Expert review

Pol CONIN

Odgovorni digitalni vodja

« Technical evaluation of the SBG Ellipse A Marine inertial measurement unit »

The SBG Ellipse A Marine AHRS inertial measurement unit (IMU) is a technical solution of choice for marine applications requiring precise attitude and heave determination. Its compact design (46 x 45 x 24 mm, 45 g) facilitates integration in confined spaces, a major advantage for vessels of all sizes. Its robustness is an undeniable strength: the IP68 housing ensures waterproofing against harsh marine environments, while compliance with MIL-STD 810G vibration tests (8 g RMS) and shock tests (500 g) guarantees operational reliability even in extreme conditions. The Ellipse A’s ability to provide heave data with 5 cm accuracy, automatically adjusted to wave period, is critical for dynamic positioning systems, bathymetric surveys, or equipment stabilization. The integration of magnetometers with advanced calibration offers valuable redundancy for magnetic heading, particularly useful in case of GNSS failure or unavailability. Multiple interfaces (RS-232, RS-422, USB, CAN) and NMEA compatibility simplify integration with most existing navigation systems. The sbgCenter software streamlines configuration and monitoring, making the device accessible to integrators. With an MTBF of 218,000 hours and factory calibration over a wide temperature range (-40 to 85 °C), long-term durability is ensured.

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Inercialna enota SBG Ellipse A Marine AHRS

2.616,00€

Frequently asked questions

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What is the SBG Ellipse A Marine AHRS inertial navigation unit and what is it used for?

The SBG Ellipse A Marine AHRS (Attitude and Heading Reference System) inertial measurement unit is a compact and rugged sensor designed for marine applications. It integrates an inertial measurement unit (IMU) and magnetometers to provide reliable orientation data (roll, pitch, heading) and heave in dynamic environments, even in the presence of transient magnetic disturbances.

What is the accuracy of the roll, pitch, heading, and heave measurements of the Ellipse A Marine?

The Ellipse A Marine IMU provides high-accuracy measurements:

Roll / Pitch: 0.1° (static)Heading (magnetic): 0.8° (under homogeneous magnetic field after calibration)Heave: 5 cm or 5% (whichever is greater), with automatic wave period adjustment (up to 20 seconds).

Is the Ellipse A Marine IMU waterproof and shock-resistant for marine use?

Yes, the Ellipse A Marine IMU housing version is designed to be robust and resistant to marine environments. It is IP68 certified, ensuring resistance to dust and immersion in water (1 hour at 2 meters). Additionally, it meets MIL-STD 810G vibration standards (8 g RMS from 20 Hz to 2 kHz) and shock resistance (500 g for 0.1 ms), ensuring operational reliability even in extreme conditions.

What are the power supply requirements for the SBG Ellipse A Marine inertial navigation unit?

The SBG Ellipse A Marine AHRS inertial navigation unit requires a direct current (DC) power supply. The acceptable input voltage range is 5 to 36 VDC. Its power consumption is very low, below 300 mW.

What communication interfaces does the Ellipse A Marine central unit provide?

The Ellipse A Marine IMU features multiple communication interfaces for easy integration:

Serial interfaces: RS-232, RS-422, USB (up to 2 Mbps)CAN interface: CAN 2.0A/B (up to 1 Mbps)Synchronization I/O: 2 sync inputs (RS232), 1 sync output (TTL)It supports protocols such as sbgEcom (binary), REST API, NMEA, and other third-party protocols, with an output rate up to 1 kHz for IMU and Euler data.

Which software or platforms is the SBG Ellipse A Marine IMU compatible with?

The Ellipse A Marine IMU is compatible with several tools and platforms to simplify its use and integration:

sbgCenter: Software provided by SBG Systems for configuration, monitoring, and data logging.ROS (Robot Operating System): A driver is available for full compatibility with this open-source software collection for robotics.Pixhawk: Open-source hardware platform used for autopilot systems in drones and other unmanned vehicles.

What is the weight and dimensions of the Ellipse A Marine inertial navigation unit?

The Ellipse A Marine inertial navigation unit is designed to be very compact and lightweight. Its dimensions are 46 x 45 x 24 mm and it weighs only 45 g for the enclosure version. An OEM version is also available with dimensions of 29.5 x 25.5 x 11 mm and a weight of 8 g.

What is the warranty duration for the SBG Ellipse A Marine AHRS inertial measurement unit?

The SBG Ellipse A Marine AHRS inertial measurement unit comes with a 2-year manufacturer's warranty.

Does the Ellipse A Marine IMU require regular recalibration?

No. Each SBG Ellipse A Marine IMU sensor undergoes rigorous factory calibration and testing across its entire operating temperature range. This ensures the product meets its specifications throughout its lifespan without requiring recalibration.

Are there different versions of the Ellipse A Marine IMU, for example for OEM integration?

Yes, the Ellipse A Marine IMU is available in two main versions:

A boxed version, with IP68 protection, resistant to dust and water. Its dimensions are 46 x 45 x 24 mm and its weight is 45 g.

An OEM version, mounted on PCB, designed for compact integration. Its dimensions are 29.5 x 25.5 x 11 mm and its weight is 8 g.

Both versions provide the same performance specifications.

How does the Ellipse A Marine IMU handle heave and wave period adjustment?

The Ellipse A Marine IMU integrates high-performance accelerometers and a state-of-the-art heave algorithm. It provides accurate heave data for marine applications, with a precision of 5 cm or 5% (whichever is greater). The system automatically adjusts to wave periods, supporting periods from 0 to 20 seconds.

What is the average lifespan (MTBF) of the SBG Ellipse A Marine AHRS unit?

The calculated Mean Time Between Failures (MTBF) for the SBG Ellipse A Marine AHRS unit is 218,000 hours.

Which motion profiles are supported by the Ellipse A Marine IMU?

The Ellipse A Marine IMU supports a variety of motion profiles to adapt to different applications. Profiles include:

Aerial: airplane, fixed-wing drone, helicopter, UAV. Marine: marine, submarine. Land: automobile, heavy machinery, off-road vehicle, pedestrian, railway, static, truck.

Does the Ellipse A Marine AHRS IMU accept external input data?

No, the technical documentation states that input protocols are not applicable (N/A) for the Ellipse A Marine AHRS IMU. It is primarily designed to provide orientation and heave data. However, it features 5 Sync IN inputs for event markers or PPS up to 1 kHz.

Where can I find the technical documentation and installation guides for the Ellipse A Marine autopilot?

The Ellipse A Marine autopilot comes with comprehensive documentation. This includes installation guides, advanced configuration information, troubleshooting, and detailed manuals for smooth integration and operation. Test reports and firmware update procedures are also available. These resources are provided to assist users at every step.