3DM-GX4 -25? Product Datasheet0 pages

LORD PRODUCT DATASHEET

3DM-GX4-25 (AHRS)
Attitude Heading Reference System
™

The 3DM-GX4-25™ is a miniature high end industrial Attitude Heading
and Reference System (AHRS), utilizing the highest performance MEMS
sensor technology. It combines a triaxial accelerometer, triaxial gyro,
triaxial magnetometer, temperature sensors, pressure altimeter and dual
on-board processors running a sophisticated Adaptive Kalman Filter
to provide excellent static and dynamic attitude estimates and inertial
measurements. All of its features combine to make it the smallest and
best performing AHRS in its class.

Features & Benefits

System Overview

Best in Class

The 3DM-GX4-25™ offers a range of fully calibrated inertial
measurements including acceleration, angular rate, magnetic field,
deltaTheta and deltaVelocity vectors. It also outputs computed
attitude estimates including Euler angles (pitch, roll, and heading
(yaw)), rotation matrix and quaternion. Uncertainty values and
data-valid flags are available for all estimated outputs. Thanks
to a sophisticated Adaptive Kalman Filter, the estimates are
highly immune to magnetic disturbances and linear motion. Bias
tracking and sensor noise model options allow for fine tuning your
application. All quantities are fully temperature compensated and
are mathematically aligned to an orthogonal coordinate system.
The 3DM-GX4-25™ architecture has been carefully designed to
substantially eliminate common sources of error such as gain and
offset errors induced by temperature changes and sensitivity to
supply voltage variations. Gyro drift is extremely low and through
a variety of estimation techniques it can approach near-tactical
performance in many applications.
Thanks to the MIP™ Protocol, the 3DM-GX4™ family is drop-in
protocol compatible with the 3DM-GX3® and 3DM-RQ1™ families
of inertial sensors. The 3DM-GX4-25™ is initially sold as a starter
kit consisting of an AHRS module, RS-232 or USB communication
and power cable, software memory stick or CD, user manual, and
quick start guide.

•t high performance gyros
∙ noise density: 0.005°/sec/√Hz
∙ drift: 10°/hr in-run bias stability
∙ g2 sensitivity: 0.003°/s/g2 rms
• dedicated estimation processor for precise position,
velocity, & attitude estimations
• high-speed sample rate & flexible data outputs
• -40 °C to +85 °C ambient temperature range operation
• high performance under vibration
• smallest, lightest industrial AHRS with Adaptive Kalman
Filter available
• simple integration supported by SDK and comprehensive
MIP™ API
Cost Effective
• reduced cost and rapid time to market for customer’s
applications
• aggressive volume discount schedule
• drop-in protocol compatibility with 3DM-GX3®, 3DM-RQ1™
families

1.42 [36]

1.30 [32.9]

Applications
Provides very stable and accurate navigation and attitude under
dynamic conditions such as:

1.44 [36.6] .96 [24.4]

• unmanned vehicle navigation
• platform stabilization, artificial horizon
• antenna and camera pointing
• health and usage monitoring of vehicles
• reconnaissance, surveillance, & target acquisition
• robotic control

.13 [3.2]
.44 [11.1]

• personnel tracking

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®

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