Inertial Navigation Sensors: MEMS IMU, Accelerometers, Gyroscopes, AHRS, GPS-INS & Point Cloud Generation

Inertial Labs is a leading designer and manufacturer of position and orientation tracking systems for unmanned vehicles. Our high accuracy solutions are based on the fusion of inertial navigation sensors with a range of other cutting-edge sensing technologies, including MEMS-IMU, accelerometers, gyroscopes and AHRS. 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.

Inertial Measurement Units (IMU)

IMU-P Inertial Measurement Unit (IMU)

High Performance Tactical Grade & Industrial IMU

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

The MEMS IMU 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.

More Information: IMU-P Inertial Measurement Unit

Kernel Inertial Measurement Units

Fully-integrated industrial and tactical-grade IMUs

The Kernel series of strapdown three-axis IMUs features the latest in MEMS IMU sensor technology, providing a number of options to suit both industrial and tactical-grade requirements.

Providing linear acceleration and angular rate outputs with three-axis MEMS accelerometers and gyroscopes, the fully-integrated IMUs are compact and lightweight and have been thoroughly tested to withstand large variations in temperature, high vibration, and shock.

The fully-calibrated tactical and industrial IMUs can be integrated into MRUs, AHRS and GNSS-INS, and are also ideal for a wide variety of drone and robotics applications such as autonomous vehicles, antenna and line of sight stabilizations systems, and vessel motion monitoring.

More Information: Kernel Inertial Measurement Units

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.

More Information: AHRS-10 Attitude and Heading Reference System

AHRS-II – Absolute Orientation AHRS

The AHRS-II is our family of next-generation AHRS featuring state-of-the-art algorithms for a wide range of dynamic motions of unmanned vehicles. Precision 3-axis accelerometers, magnetometers and gyroscopes provide heave, heading, pitch and roll data, as well as high-frequency real time device rotation data and ongoing gyroscope corrections.

OptoAHRSTM-II works through the use of reference images. A reference image is literally a picture of the horizon in a given direction. Within the reference image the system identifies a constellation of identifiable features.

More Information: AHRS-II Attitude and Heading Reference System

miniAHRS – Miniature AHRS

The miniAHRS is a lightweight, compact AHRS that is ideal for integration into small drones and unmanned systems. The device combines 3-axis accelerometers, magnetometers and gyroscopes to provide absolute pitch and roll data, real-time three-axis rotation measurement, and ongoing gyroscope corrections.

The miniAHRS features advanced Kalman filter-based sensor fusion techniques as well as state-of-the-art algorithms for the dynamic motions of different unmanned vehicles and robotic platforms in land, sea and air domains.

More Information: miniAHRS – Miniature AHRS

GPS-Aided Inertial Navigation Sensors

GPS-INS for Unmanned Vehicles

Our family of GPS-Aided Inertial Navigation Systems combines support for multi-GNSS constellation signals (L1 & L2 GPS, GLONASS, GALILEO and BEIDOU) with state-of-the-art 3-axis accelerometers, magnetometers and gyroscopes to provide accurate position, velocity, heave and absolute orientation data for both unmanned aircraft and ground robotics. Both single- and dual-antenna GPS-INS are available.

Single-Antenna GPS-INS

Our single-antenna GPS-aided INS is available in three models. Both the INS-P and INS-U incorporate an embedded high-precision gyro-compensated magnetic compass for enhanced heading performance in GNSS-denied environments, even under highly challenging environmental conditions.

The INS-U also features an integrated Air Data Computer (ADC) that outputs parameters such as static and dynamic pressure, airspeed, Mach number and angle of attack.

Specifications:

Model	INS-B (Basic)	INS-P (Professional)	INS-U
Size	120 x 50 x 53 mm	120 x 50 x 53 mm	82.0 x 40 x 26 mm
Weight	220g	280g	< 200g
Position Accuracy	1.5 m (GPS L1) 1.2 m (GPS L1&L2) 0.6 m (SBAS) 0.4 m (DGPS) 0.05 m (PP) 0.01 m + 1 ppm (RTK)	1.5 m (GPS L1) 1.2 m (GPS L1&L2) 0.6 m (SBAS) 0.4 m (DGPS) 0.05 m (PP) 0.01 m + 1 ppm (RTK)	1.5 m (GPS L1) 1.2 m (GPS L1&L2) 0.6 m (SBAS) 0.025 m (PPP) 0.01 m + 1 ppm (RTK)
Heading Accuracy (static | dynamic)	1 deg | 0.1 deg	0.4 deg | 0.1 deg	0.3 deg | 0.6 deg
Velocity Accuracy	0.03 m/sec	0.03 m/sec	0.05 m/sec
Pitch & Roll Accuracy (dynamic)	0.1 deg	0.1 deg	0.08 deg
Gyroscope Bias in-run Stability	1 deg/hr	1 deg/hr	2 deg/hr
Accelerometer Bias in-run Stability	0.005 mg	0.005 mg	0.01 mg (±8g) 0.03 mg (±15g) 0.05 mg (±40g)

Dual-Antenna GPS-INS

Our dual-antenna GPS-aided INS sensors provide enhanced accuracy for unmanned vehicle positioning and heading in both static and dynamic conditions.

Specifications:

Model	INS-BU	INS-D	INS-DL	INS-DU	INS-DM	INS-FI	INS-DM-FI
Size	120 x 50 x 53 mm	120 x 50 x 53 mm	120 x 50 x 53 mm	120 x 50 x 53 mm	160.4 x 141.2 x 61.1 mm	88.9 x 127.5 mm	160 x 149 x 96mm
Weight	320g	320g	320g	320g	1345g typical (depends on configuration)	950g	2100g
Horizontal Position Accuracy	1.5m (GPS L1) 1.2m (GPS L1&L2) 0.005 m (PP) 0.01 m + 1 ppm (RTK)	1.5m (GPS L1) 1.2m (GPS L1&L2) 0.6 m (SBAS) 0.4 m (DGPS) 0.005 m (PP) 0.01 m + 1 ppm (RTK)	1.5m (GPS L1) 1.2m (GPS L1&L2) 0.4 m (DGPS) 0.005 m (PP) 0.01 m + 1 ppm (RTK)	1.5m (GPS L1) 1.2m (GPS L1&L2) 0.005 m (PP) 0.01 m + 1 ppm (RTK)	1.2 m (SP) 0.6 m (SBAS) 0.4 m (DGPS) 0.005 m (PP) 0.01 m + 1 ppm (RTK)	1.2 m (SP) 0.6 m (SBAS) 0.4 m (DGPS) 0.025 m (PPP) 0.01 m (RTK)	1.2 m (SP) 0.6 m (SBAS) 0.4 m (DGPS) 0.025 m (PPP) 0.01 m (RTK)
Heading Accuracy (static | dynamic)	0.6 deg | 0.3 deg	0.15 m | 0.08 m (1m | 2m baseline)	0.2 m | 0.08 m (1m | 2m baseline)	0.2 m | 0.2 m (2m baseline) 0.4 m | 0.4 m (1m baseline)	0.15deg | 0.15deg (1m baseline) 0.08deg | 0.08deg (2m baseline)	0.15deg | 0.15deg (1m baseline) 0.08deg | 0.08deg (2m baseline)	0.15deg | 0.15deg (1m baseline) 0.08deg | 0.08deg (2m baseline)
Velocity Accuracy	0.05 m/sec	0.03 m/sec	0.03 m/sec	0.05 m/sec	0.03 m/sec or 0.05 m/sec (depending on receiver)	0.03 m/sec or 0.05 m/sec (depending on receiver)	0.03 m/sec or 0.05 m/sec (depending on receiver)
Pitch & Roll Accuracy (dynamic)	0.03 deg RMS	0.08 deg RMS	0.1 deg RMS	0.2 deg RMS	0.01 – 0.05 deg (depending on IMU)	0.01 deg	0.01 deg
Gyroscope Bias in-run Stability	2 deg/hr	1 deg/hr	3 deg/hr	<2 deg/hr	0.25 – 2 deg/hr (depending on IMU)	0.025 deg/hr	0.025 deg/hr
Accelerometer Bias in-run Stability	0.01 mg (±8 g)	0.005 mg (±8 g)	0.005 mg (±8 g)	0.005 mg (±8 g)	0.003 – 0.025 mg (depending on IMU)	0.005 mg (±8 g)	0.005 mg (±8 g)

OEM INS Solutions

OEM versions of our INS-B, INS-D and INS-DL industrial and tactical grade GPS-aided INS are also available. Measuring just 85 x 47 x 36 mm and weighing from 115 to 160g, they can be easily integrated onto SWaP-conscious platforms.

The INS-DH-OEM is a next-generation dual antenna GPS-aided INS that features state-of-the-art sensor fusion, navigation and guidance algorithms, and incorporates an advanced NovAtel GNSS receiver and Honeywell HG4930 IMU.

More Information: GPS-Aided Inertial Navigation Systems (GPS-INS)

Two and Three Axis Gyroscopes (TAG)

Tactical-grade multi-axis Gyros for stabilization & pointing

The TAG-207, TAG-307 and TAG-304 are tactical-grade two- and three-axis MEMS gyroscopes designed for stabilization and pointing.

With low SWaP, noise and latency as well as a wide bandwidth, they are ideal for complex unmanned systems applications.

TAG gyros are engineered to withstand the harshest environments, with no moving parts and tested to MIL-STD-810 levels of shock and vibration. They are factory-calibrated over the entire operation temperature range, and precision-machined to ensure extremely low non-orthogonality and misalignment between sensitive elements.

More Information: TAG Multi-Axis Gyros

Three-Axis Accelerometers (TAA)

Navigation-grade MEMS accelerometers for UAVs & robotics

Inertial Labs’ TAA (Three Axis Accelerometer) series provides high-precision navigation-grade linear acceleration data with low noise and excellent repeatability in both static and dynamic applications.

The self-contained devices are fully calibrated, temperature-compensated and mathematically aligned to an orthogonal coordinate system, and are ideal for a wide range of unmanned systems applications including UAV flight stabilization, AUV/ROV navigation and control, and gimbal and antenna orientation.

The TAA series features ITAR-free and export-controlled models, with three measurement range options for each.

More Information: Three Axis Accelerometers (TAA)

Motion Reference Units (MRU)

High Performance Motion Sensors

Our Motion Reference Units are high-performance strapdown motion sensors specifically designed for marine applications such as ROVs. Utilizing precision solid state 3-axis accelerometers, magnetometers, gyroscopes and barometric sensors, the units output highly accurate position, velocity, acceleration, heading, pitch & roll, and heave, sway & surge data.

The Motion Reference Units are available in three different models – Basic, Enhanced and Professional – to provide desired levels of accuracy and stability as well as the required outputs for your particular application.

Video: MRU Qualification Tests

More Information: Motion Reference Units

Wave Sensors (WS)

High performance Wave, Direction & Motion Sensors

The WS-E (Enhanced) and WS-PD (Professional Dual) are high-performance strapdown wave direction and motion sensors that provide accurate wave characteristics as well as heave, sway, surge, pitch and roll data for USVs and other floating marine platforms.

The Wave Sensors can be interfaced with external GNSS receivers, gyro compasses and Doppler Velocity Logs (DVL), and can output spectral data as a complete set of Fourier coefficients and energies.

More Information: Wave Sensors

RMCU – Railway Motion Control Unit

The RMCU is a high-performance strapdown system specially designed to determine absolute orientation (heading, pitch and roll) and parameters of motion (angular rates and linear acceleration) for railway platforms in both static and dynamic situations.

The system is compliant with EN 45545, EN 50155 and EN 50011 railway standards and features state-of-the-art embedded algorithms for different railway platforms.

More Information: RMCU – Railway Motion Control Unit

RESEPI – Remote Sensing Payload Instrument

Flexible LiDAR point cloud generation solution for UAVs

RESEPI is a range of high-accuracy LiDAR point cloud generation solutions designed for Inertial Labs partners and resellers to white-label, allowing them to customize both the hardware and software with their own branding and focus on their core competencies without worrying about additional development.

Built around a Linux-based processing platform, the modular systems include Inertial Labs’ own high-performance single- or dual-antenna GPS-aided inertial navigation systems (INS) with high-end RTK/PPK GNSS receivers, as well as Wi-Fi communications and an embedded cellular modem for in-flight RTCM RTK corrections.