Octantis 2 AN5300S AHRS
Attitude and Heading Reference Systems
Airborne Qualified AHRS Systems
- Attitude Accuracy< ±1.0°
- Heading Accuracy< ±2.5°
- Power Consumption< 2.5W
- Update Rate50Hz
Octantis 2 AN5300S AHRS
The Octantis 2 AN5300S is an attitude and heading reference system designed for airborne applications. Tactical grade MEMS gyroscopes, accelerometers and a built-in magnetometer provide attitude and heading, output at 50 Hz over RS232 and RS422. Qualified to MIL-STD-461E and DO-178B Level B and accorded CEMILAC certification, it serves as a primary or standby instrument for cockpit displays.
How Octantis Processes Sensor Data
Sensor inputs are fused in real time through Aeron's multi-modal Extended Kalman Filter to deliver stable attitude and heading estimates.
In
Out
- ACCELEROMETERTriaxial MEMS · ±15 g
- GYROSCOPETriaxial MEMS · ±450°/s
- MAGNETOMETERInternal · ±4 gauss
- EXTERNAL AIDINGTAS · Mag Field · Baro Alt
- ATTITUDE & HEADINGEuler Angles · 0.01° Res.
- BODY DYNAMICSBody Accel · Euler Rates
- DIAGNOSTICSBuilt-In-Test (BIT)
Everything Built for Airborne Reliability
High Reliability System, MIL Qualified
Airworthiness certified with redundant sensor configuration.
Software Certified to DO-178B Level B
Independently verified and validated in accordance with DO-178B Level B with 100% MC/DC coverage.
External True Air Speed (TAS) Aiding
Accepts external TAS data for velocity aiding to deliver unmatched performance in high dynamics of fighter aircraft.
Communication Interface
Standard isolated Serial RS422, RS232 interfaces and isolated power supply input including lightning protection.
Complete Continuous Diagnostics
Complete Continuous Built-In-Test provides extensive health monitoring of the device including sensor and power supply health.
Low Power Consumption
Low-power system (< 2.5 W) based on MEMS technology ensures no need of external or internal cooling.
External Magnetometer Interface
Facilitates choosing external magnetometer data to avoid degradation caused by nearby systems.
TSO Compliant Performance
Benchmarked performance complying with TSO for flight instrumentation and attitude indication suitable for a wide array of aircraft.
Low Noise Sensors
Best-in-class MEMS sensors with excellent bias instability for consistent and accurate attitude and heading data.
Technical Specifications
Environmental Qualifications
| Random Vibration | MIL-STD-810F, Method 514.5C-17, Procedure I, Category 12 |
|---|---|
| High Temperature Ground Survival | MIL-STD-810G, Method 501.5, Procedure I |
| Ground Operation — Short Term | MIL-STD-810G, Method 501.5, Procedure II |
| Ground Operation — Long Term | MIL-STD-810G, Method 501.5, Procedure II |
| Low Temperature | MIL-STD-810G, Method 502.5, Procedure I |
| Low Pressure (Altitude) | Clause 3.2.1.4, JSS55555:2000, Revision No. 2 |
| Humidity | MIL-STD-810F, Method 507.4 |
| Acceleration | Structural — MIL-STD-810G, Method 513.5 Proc. I · Operational — Proc. II |
| Shock Survival | MIL-STD-810E, Method 516.4, Procedure I |
| Transit Drop | MIL-STD-810F, Method 516.5, Procedure IV |
| Thermal Shock | MIL-STD-810F, Method 503.4 |
| Drip | MIL-STD-810F, Method 506.4, Procedure III |
| Fungus | MIL-STD-810F, Method 508.5 |
| Fluid Contamination | MIL-STD-810F, Method 504.1 |
| Corrosion Salt Fog | MIL-STD-810E, Method 509.3 |
Communication
| Input / Output Ports | RS232, RS422 |
|---|---|
| Connector | DB15 (M24308/3-2F) Male |
| Update Rate | 50 Hz |
| Baud Rate (RS422) | Configurable, 38400 bit/s (Default) |
| Baud Rate (RS232) | Configurable, 9600 bit/s (Default) |
| Data Format | Binary |
| External Inputs | True Airspeed, Magnetic Field, Pressure Altitude |
| Output Parameters | Euler Angles, Body Accelerations, Euler Rates, BIT |
Electromagnetic Compatibility
| Conducted Emissions, Power Leads | As per test CE102 of MIL-STD-461E (Basic Curve) |
|---|---|
| Radiated Emissions, Electric Field | As per test RE102 of MIL-STD-461E (Fixed wing internal < 25 m nose to tail) |
| Radiated Susceptibility, Electric Field | As per RS103, 60 V/m level of MIL-STD-461E (Aircraft internal, AF type) |
| Conducted Susceptibility, Power Lead | As per CS101 of MIL-STD-461E (Curve #2) |
| Conducted Susceptibility, Bulk Cable Injection | As per CS114 of MIL-STD-461E (Limit Curve #3) |
| Conducted Susceptibility, Bulk Cable Injection, Impulse Excitation | As per CS115 of MIL-STD-461E |
| Conducted Susceptibility, Damped Sinusoidal Transient, Cable & Power Leads | As per CS116 of MIL-STD-461E (Imax = 5 A) |
Attitude
| Roll Range | ±180° |
|---|---|
| Pitch Range | ±90° |
| Roll / Pitch Static Accuracy | < ±1.0° |
| Roll / Pitch Dynamic Accuracy ¹ | < ±2.5° |
| Attitude Resolution | 0.01° |
Mechanical
| Dimensions | 148 (L) × 115 (W) × 63 (H) mm (± 0.3 mm) |
|---|---|
| Weight | 900 g (± 50 g) |
| Operating Temperature ² | −40°C to +71°C |
| Storage Temperature | −55°C to +90°C |
| Humidity | 10 to 95% RH (non-condensing) |
Accelerometer
| Range (X, Y, Z) | ±15 g |
|---|---|
| Resolution | 1 mg |
| Bias Instability * | 5 mg |
Angular Rate
| Range (Roll, Pitch, Yaw) | ±450 °/s |
|---|---|
| Resolution | 0.1 °/s |
| Bias Instability * | 4 °/hr |
Heading
| Range | ±180° |
|---|---|
| Accuracy ¹ | < ±2.5° |
| Heading Resolution | 0.01° |
Magnetometer
| Range (Internal) | ±4 gauss |
|---|---|
| Resolution | 0.25 mgauss |
Electrical
| Input Voltage (isolated) | 12 to 32 V DC |
|---|---|
| Power Consumption | < 2.5 W |
Reliability
| MTBF | 41,900 hrs @ 30°C · 16,300 hrs @ 55°CPart Stress method, MIL-HDBK-217 Notice F |
|---|
¹ 1σ accuracy after magnetic calibration and setting correct declination / offset angle.
² System tested up to a maximum temperature of +80°C (4 hours continuous operation).
* Short Term / Allan Variance.
Applications
Flight Data Recorder (FDR)
Cockpit Display
UAV Navigation
Questions
Common questions about the Octantis AHRS.
What interfaces are available on Octantis AHRS?
Octantis AHRS has RS232 and RS422 interfaces for communication.
What standards does the Octantis AHRS comply with?
Octantis AHRS hardware is qualified as per MIL-STD-461E and MIL-STD-810E/F/G (the method used for each test is in the qualification table), and its software is tested in compliance with DO-178B level B
What features does AHRS have for reliability?
Octantis AHRS has redundant sensors for reliability and performance.
What lifecycle support is available for AHRS?
Octantis AHRS is supported for long operational life of 20 years
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Contact
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Offices
India
Head office and design centre, Pune
Plot No. 7, Lane No. 5, Laxman Nagar, Balewadi
Pune, Maharashtra 411045, India
Factory, Pune
Vivan Kohli Industrial Park, Shed No. 5, Gat No. 446
Old Pune-Mumbai Highway, Naigaon, Kanhe Phata, Talegaon
Pune, Maharashtra 412106, India
Sales and support, Bengaluru
First Floor, Building No. 11, Sai Anugraha
Jeevan Bhima Nagar Main Road
Bengaluru, Karnataka 560075, India
Sales and support, Vijayawada
Door No. 52-1/4-8D, Plot No. 9, 5th Cross Road
Veterinary Colony
Vijayawada, Andhra Pradesh 520008, India
International
Aeron Systems Pvt. Ltd., Sharjah
Saif Executive Office # P8-17-02
Sharjah Airport International Free Zone Authority
PO Box 8000, Sharjah, U.A.E.