Precision Inertial Sensors and Systems: IMU, GPS-INS, AHRS, MRU

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Inertial Labs is a leading designer and manufacturer of position and orientation tracking systems for unmanned vehicles, based on the fusion of inertial sensors with a range of other cutting-edge sensing technologies. With our engineering expertise, we create high-performance inertial sensor systems with small size and low power requirements.

Our products are ideal for a variety of unmanned systems applications, including motion tracking, weapon orientation tracking, payload stabilization, and inertial position tracking for GPS-denied environments.

IMU-P Inertial Measurement Units (IMU)

High Performance Industrial & Tactical Grade IMUs

The IMU-P is a light-weight and compact high performance Inertial Measurement Unit (IMU), designed for a number of applications including UAV and AUV/ROV navigation and control.

The unit contains three highly accurate Advanced MEMS gyroscopes and three ultra high performance accelerometers for precise linear acceleration and angular rate measurements.

The IMU-P is an ITAR free inertial solution, that is fully calibrated and compensated over its operating temperature range. Both Industrial and Tactical grade units are available.

Compact size (39 x 45 x 22 mm) and low weight (70 gram) – ideal for integrated system applications.

IMU-P Inertial Measurement Unit for UAVs

IMU-P Industrial and Tactical Grade IMUs

IMU-P Applications:

  • Antenna and Line of Sight Stabilization Systems
  • Motion Reference Units (MRU)
  • Motion Control Sensors (MCS)
  • Gimbals, EOC/IR, platforms orientation and stabilization
  • UAV & AUV/ROV navigation and control

Specifications:

“Industrial” IMU-P“Tactical” IMU-P
Gyroscope Bias in-run Stability3 deg/hr1 deg/hr
Gyroscopes noise density0.006 deg/sec√Hz0.004 deg/sec√Hz
Accelerometer Bias in-run Stability0.015 mg0.005 mg
Accelerometers noise density0.03 mg√Hz0.025 mg√Hz
Pitch & Roll static accuracy0.05 deg0.05 deg
Power Consumption0.8 @ 5V0.8 @ 5V
Operating temperature -40 to +85 deg C-40 to +85 deg C

OS3D-FG Orientation Sensor

Miniature AHRS for Unmanned Vehicles

The OS3D-FG is a miniature Attitude and Heading Reference System (AHRS) designed for real-time orientation tracking applications. It fuses data from tri-axial MEMS gyroscopes, tri-axial MEMS accelerometers and tri-axial fluxgate magnetometers using an onboard Digital Signal Processor and state-of-the-art algorithms.

The OS3D-FG is ideal for a wide range of small unmanned vehicles, including UAVs, ROVs and ground robotics.

OS3D-FG UAV Orientation Sensor

AHRS Orientation Sensor Applications:

  • Robotics
  • Small gimbals and EOS stabilization
  • Marine antenna stabilization systems
  • Small Unmanned Underwater Vehicles, ROV
  • Quadrotor Helicopters and micro UAV

Specifications:

Size45×16×14.5mm
Weight12 grams
Power Consumption0.15W
Output Data Rateup to 2000 Hz
Heading Accuracy 0.5 deg static, 1.5 deg dynamic
Attitude Accuracy 0.2 deg static, 0.7 deg dynamic
Gyroscope Bias in-run Stability10 deg/hr
Accelerometer Bias in-run Stability 0.15 mg

More Information: OS3D-FG Orientation Sensor

OS3D-DTS Digital Tilt Sensor

High Accuracy, Miniature MEMS Digital Tilt Sensor

The OS3D-DTS is an ultra-high accuracy, miniature dual axis MEMS Digital Tilt Sensor, designed for precision tilt measuring. It includes tri-axial MEMS Gyroscopes and tri-axial high precision MEMS Accelerometers; and is equipped with an onboard processor and embedded inclination and tilt algorithms allowing for direct integration into systems without interfacing a PC.

OS3D-DTS MEMS Digital Tilt Sensor

The low-SWaP, ITAR-free OS3D-FG is environmentally sealed (IP67) in a rugged enclosure, making it ideal for a wide range of unmanned applications, including UAVs, Robotics and Electro Optical Systems.

Digital Tilt Sensor Applications:

  • Robotics
  • Remote Weapons Stations (RWS) stabilization and pointing
  • Electro-Optical Systems (EOS) stabilization

Specifications:

Size26.5×19.5×7.4mm
Weight9 grams
Power Consumption125 mW (typical)
Pitch & Roll Resolution0.01 deg
Pitch & Roll Accuracy0.05 deg
Bandwidthup to 200 Hz
Operational Temperature Range-40 to +85 deg C

Attitude and Heading Reference Systems (AHRS)

AHRS-10 – High Accuracy AHRS

The AHRS-10 is a high-accuracy AHRS that outputs absolute orientation (heading, pitch and roll) for both motionless and dynamic applications. It integrates precision 3-axis accelerometers, magnetometers and gyroscopes to provide absolute pitch and roll data, real time device rotation data and ongoing gyroscope corrections.

The AHRS-10 utilizes our high-performance Fluxgate Magnetometer technology for superior stability and repeatability, making it an ideal solution for unmanned systems applications where superior accuracy is required.

AHRS-10 – High Accuracy AHRS

AHRS-10 Applications:

  • Point-to-point antenna stabilization and motion control
  • Antenna Reference Units (ARU)
  • Radar Reference Units (RRU)

Specifications:

ModelAHRS-10BAHRS-10P
Size90×27×26mm90×27×26mm
Weight77 grams843 grams
Heading Accuracy 0.8 deg static, 1.0 deg dynamic0.3 deg static, 0.6 deg dynamic
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