AHRS-10B

Inertial Labs Attitude and Heading Reference System, AHRS-10 is a high-performance strapdown system that determines absolute orientation (heading, pitch and roll) for any device on which it is mounted. Orientation is determined with high accuracy for both motionless and dynamic applications.

The Inertial Labs AHRS-10 utilizes 3-axes each of precision accelerometers, magnetometers and gyroscopes to provide accurate Heading, Pitch and Roll of the device under measure. Integration of gyroscopes’ output provides high frequency, real-time measurement of the device rotation about all three rotational axes.

Accelerometers and Fluxgate magnetometer measure absolute Pitch, Roll and magnetic Azimuth at AHRS initial alignment as well as providing ongoing corrections to gyroscopes during operation.

Parameter AHRS-10B

Heading dynamic accuracy in temperature range, RMS: 0.6 deg
Pitch & Roll dynamic accuracy in temperature range, RMS: 0.08 deg
Gyroscopes Bias instability in temperature range, RMS: 72 deg/hr
Accelerometers Bias instability in temperature range, RMS: 0.7 mg
Interface: RS-422

KEY FEATURES AND FUNCTIONALITY

• Two models (10B and 10P) with differentiated performance and price
• State-of-the-art algorithms for different dynamic motions of Robots, UAV, UUV, UGV, AGV, ROV, Gimbals and Antennas
• Highly accuracy Magneto-Inductive and Fluxgate magnetometers
• Gyro-Stabilized Slaved Magnetic Heading
• Suitable for Primary Attitude Reference
• Advanced Kalman Filter based sensor fusion algorithms
• Embedded 2D and 3D magnetic calibration on hard and soft iron
• All solid state components (no moving parts)
• Full temperature calibration of all sensing elements
• Environmentally sealed (IP67) and Compact design

One of the key elements to the success of Inertial Labs AHRS is its use of Inertial Labs 8mm Fluxgate Magnetometers which has distinct advantages over commonly used magnetoinductive or magneto-resistive magnetometers.

In operation over time and temperature fluxgate magnetometers have superior stability and repeatability. In terms of sensitivity, fluxgate magnetometers provide up to two orders of magnitude increased sensitivity.

In addition to the performance advantages, unlike the chip-level magnetometer technology, fluxgate magnetometer technology has been depended on for over 70 years to provide an accurate reference to North. It remains the most reliable magnetic sensor technology for determining an object’s heading.