What are Inertial Sensors?
Inertial sensors are sensors based on inertia. These range from MEMS inertial sensors, measuring only a few square mm, up to ring laser gyroscopes which are extremely accurate but can measure 50 cm in diameter.
What is an Inertial Measurement Unit (IMU)?
An Inertial Measurement Unit (IMU) is a self-contained system that measures linear and angular motion usually with a triad of gyroscopes and triad of accelerometers. An IMU can either be gimballed or strap-down, outputting the integrated quantities of angular velocity and acceleration in the sensor/body frame. They are commonly referred to in literature as the rate-integrating gyroscopes and accelerometers. The quality of the system is not only defined by the sensing elements included in it, but also by the quality of the signal processing pipeline.
Attitude and Heading Reference System (AHRS)
An AHRS (Attitude and Heading Reference System) provides 3D orientation by integrating gyroscopes and fusing this data with accelerometer data and magnetometer data. With sensor fusion, drift that arises from the integration of gyroscope data is compensated for by reference vectors, namely gravity, and the earth magnetic field.
This results in a drift-free orientation, making an AHRS a more cost effective solution than conventional high-grade IMUs (Inertial Measurement Units) that only integrate gyroscopes and rely on a very high bias stability of the gyroscopes.
Xsens designs and develops Attitude and Heading Reference Systems (AHRS). In order to improve the performance of these AHRS systems, an Inertial Navigation System (INS), which uses angular velocity and acceleration data from an Inertial Measurement Unit (IMU), can be used to compute a relative position over time.
Because the INS provides a relative position with respect to an initial starting point, it will eventually drift from its true position quickly when no external reference is provided. Global Navigation Satellite System (GNSS) support can be included to provide this reference.
The Xsens on-board sensor fusion algorithm combines all these measurements, ensuring the best performance and the least amount of drift with and without external reference. Through combining GNSS, INS and AHRS techniques that enhance each other, Xsens is able to provide powerful navigation solutions.
Motion Tracking technology for precision agriculture and smart farming.
The technological advances in precision agriculture and smart farming are following each other in a rapid pace. The wide variety of innovations include individual crop fertilization, precision navigation and autonomous food dispensing. In many of these applications, an IMU plays an important role.
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Please have a look at all our MTi products on our product overview page!
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The robustness, in both hardware and software, and anti-magnetic distortion filters of Xsens’ MTi series makes them well suited and a stable platform for motion technology applications at sea.
Xsens’ MTi series can be used in any area. With CAN interface support as well as internal and external GNSS receivers, providing a full inertial navigation solution and motion technology used for indoor, outdoor and subterranean applications.
Xsens’ MTi series are very suitable for airborne applications. Whether you need low-power consumption, low-latency, high speed processing, or a lightweight and small motion sensor, Xsens has a fit for any aviation, air and space application.
Xsens MTi integration levels
Xsens MTi inertial sensor modules come in different integration levels; from miniature PCB-mounted modules to robust standalone versions. This ensures you can always find a solution that fits into your application.
The Xsens MTi 600-series sets the standard for industrial-grade inertial measurement units. With native CAN support and external GNSS receiver support and a choice of different integration levels (IMU, VRU, AHRS, and GNSS/INS).
|MTi 600-series||Gyro bias stability||Roll/Pitch||Yaw||Position/Velocity|
The MTi 100-series is Xsens’ high-performance product line, featuring vibration-rejecting gyroscopes. It sets the industry standard for reliable MEMS-based INS’s, AHRS’s, VRU’s and IMU’s that provides high-quality position, velocity, acceleration, and orientation, even in challenging environments. The optimized temperature calibration of the internal sensors combined with twenty years of sensor fusion knowledge delivers reliable data for high demanding industrial applications.
|MTi 100-series||Gyro bias stability||Roll/Pitch||Yaw||Position/Velocity|
The Xsens MTi sets the industry standard for reliable MEMS based AHRS, VRU and IMUs. The MTi 10-series gives the systems integrator a choice of three different integration levels (IMU, VRU or AHRS).
|MTi 10-series||Gyro bias stability||Roll/Pitch||Yaw|
The MTi 1-series module is a full-featured, self-contained AHRS, VRU and IMU on a 12.1 x 12.1 mm PCB. The MTi 1-series is an excellent choice for use in high-volume applications that require robustness from the latest miniature MEMS technology.
|Product||Gyro bias stability||Roll/Pitch||Yaw||Position/Velocity|
Xsens supplies MEMS based inertial measurement units (IMU, VRU, AHRS and GNSS/INS) for industrial applications such as drones, autonomous driving and smart farming.
20 years of experience in research and development of sensor fusion algorithms have resulted in the most robust MEMS industrial Motion Trackers available on the market.
Plug and Play
Save development time, costs and resources – Xsens Motion Trackers are ready to be used right out of the box, highly configurable and equipped with a wide range of hardware interfaces enabling the fastest time to market for your product.
Our AHRS and INS products deliver an accurate North-referenced Heading estimate through the use of magnetic immunity algorithms. Magnetic disturbances are automatically identified, tracked, and rejected by the on-board Xsens Kalman Filter.
Active Heading Stabilization
Even in challenging environments where the magnetic field cannot be trusted at all, such as in warehouses or during pipe inspections, Xsens Motion Trackers are able to maintain a stable Heading through the use of Active Heading Stabilization – an Xsens proprietary solution.
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03 9687 8638
7A Kent Street,
Yarraville, VIC 3013