3DM-GX4 -25™
The 3DM-GX4 -25™ is a miniature industrial-grade attitude heading and reference system (AHRS) with integrated magnetometers, high noise immunity, and exceptional performance.
Product Highlights
- High performance integrated MEMS sensor technologyprovide direct and computed AHRS outputs in a small package.
- Triaxial accelerometer, gyroscope, magnetometer, temperature sensors, and a pressure altimeter achieve the best combination of measurement qualities.
- Dual on-board processors run a sophisticated AdaptiveKalman Filter (AKF) for excellent static and dynamic attitude estimates and inertial measurements.
he LORD MicroStrain® 3DM-GX4 ® family of industrial grade inertial sensors provides a wide range of triaxial inertial measurements and computed attitude and navigation solutions. In all models, the Inertial Measurement Unit (IMU) includes direct measurement of acceleration, angular rate, and atmospheric pressure. Sensor measurements are processed through a sophisticated estimation filter algorithm to produce high accuracy computed outputs with compensation options for magnetic and linear acceleration anomalies, sensor biases, auto-zero update, and noise offsets. The computed outputs vary between models and can include pitch, roll, yaw, a complete attitude, heading, and reference solution (AHRS) or a complete position, velocity and attitude solution (PVA), as well as integrated GPS outputs. All sensors are fully temperature compensated and calibrated over the operating temperature. The use of Micro- Electro- Mechanical System (MEMS) technology allows for highly accurate, small, lightweight devices.
The LORD MicroStrain® MIP™ Monitor software can be used for device configuration, real time measurement monitoring, and data recording. Alternatively, the MIP™ Data Communications Protocol is available for users who want to develop customized software solutions.
Best in Class Performance
- Fully calibrated, temperature compensated, and mathematically aligned to an orthogonal coordinate system for highly accurate outputs
- Bias tracking, error estimation, threshold flags, and adaptive noise, magnetic, and gravitational field modeling allow for fine tuning to conditions in each application.
- High performance, low drift gyros with noise density of 0.005°/sec/√Hz and VRE of 0.001°/s/g2RMS
- Smallest and lightest industrial AHRS available
Ease of Use
- User-defined sensor-to-vehicle frame transformation
- Easy integration via comprehensive SDK
- Common protocol with the 3DM-GX3® and 3DM-RQ1-45™ sensor families for easy migration
Cost Effective
- Out-of-the box solution reduces development time.
- Volume discounts
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General |
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Integrated sensors |
Triaxial accelerometer, triaxial gyroscope, triaxial magnetometer, temperature sensors, and pressure altimeter |
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Data outputs |
Inertial Measurement Unit (IMU) outputs: acceleration, angular rate, magnetic field , ambient pressure, deltaTheta, deltaVelocity Computed outputs Adaptive Kalman Filter (AKF): filter status, GPS timestamp, attitude estimates (in Euler angles, quaternion, orientation matrix), bias compensated angular rate, pressure altitude, gravity-free linear acceleration, attitude uncertainties, gyroscope and accelerometer bias, scale factors and uncertainties, gravity and magnetic models, and more. Complementary Filter (CF): attitude estimates (in Euler angles, quaternion, orientation matrix), stabilized north and gravity vectors, GPS correlation timestamp |
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Inertial Measurement Unit (IMU) Sensor Outputs |
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Accelerometer |
Gyroscope |
Magnetometer |
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Measurement range |
±5 g (standard) ±16 g (option) |
300°/sec (standard) ±75, ±150, ±900°/sec (options) |
±2.5 Gauss |
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Non-linearity |
±0.03 % fs |
±0.03 % fs |
±0.4 % fs |
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Resolution |
<0.1 mg |
<0.008°/sec |
-- |
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Bias instability |
±0.04 mg |
10°/hr |
-- |
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Initial bias error |
±0.002 g |
±0.05°/sec |
±0.003 Gauss |
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Scale factor stability |
±0.05 % |
±0.05 % |
±0.1 % |
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Noise density |
100 µg/√Hz |
0.005°/sec/√Hz |
100 µGauss/√Hz |
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Alignment error |
±0.05° |
±0.05° |
±0.05° |
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Adjustable bandwidth |
225 Hz (max) |
250 Hz (max) |
- |
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Offset error over temperature |
0.06% (typ) |
0.05% (typ) |
-- |
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Gain error over temperature |
0.05% (typ) |
0.05% (typ) |
-- |
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Scale factor non-linearity (@ 25° C) |
0.02% (typ) 0.06% (max) |
0.02% (typ) 0.06% (max) |
±0.0015 Gauss |
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Vibration induced noise |
-- |
0.072°/s RMS/g RMS |
-- |
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Vibration rectification error (VRE) |
-- |
0.001°/s/g2 RMS |
-- |
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IMU filtering |
4 stage filtering: analog bandwidth filter to digital sigma- delta wide band anti-aliasing filter to (user adjustable) digital averaging filter sampled at 4 kHz and scaled into physical units; coning and sculling integrals computed at 1 kHz |
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Sampling rate |
4 kHz |
4 kHz |
50 Hz |
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IMU data output rate |
1 Hz to 1000 Hz |
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Pressure Altimeter |
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Range |
-1800 m to 10,000 m |
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Resolution |
< 0.1 m |
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Noise density |
0.01 hPa RMS |
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Sampling rate |
25 Hz |
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Computed Outputs |
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Attitude accuracy |
AKF outputs: ±0.25° RMS roll & pitch, ±0.8° RMS heading (typ) CF outputs: ±0.5° roll, pitch, and heading (static, typ), ±2.0° roll, pitch, and heading (dynamic, typ) |
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Attitude heading range |
360° about all axes |
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Attitude resolution |
< 0.01° |
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Attitude repeatability |
0.3° (typ) |
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Calculation update rate |
500 Hz |
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Computed data output rate |
AKF outputs: 1 Hz to 500 Hz CF outputs: 1 Hz to 1000 Hz |
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Operating Parameters |
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Communication |
USB 2.0 (full speed) RS232 (9,600 bps to 921,600 bps, default 115,200) |
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Power source |
+ 3.2 to + 36 V dc |
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Power consumption |
100 mA (typ),120 mA (max) with Vpri = 3.2 V dc to 5.5 V dc 550 mW (typ), 800 mW (max) with Vaux = 5.2 V dc to 36 V dc |
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Operating temperature |
-40 °C to +85 °C |
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Mechanical shock limit |
500 g (calibration unaffected) 1000 g (bias may change) 5000 g (survivability) |
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MTBF |
1.2 million hours (Telcordia method I, GL/35C) 0.45 million hours (Telcordia method I, GM/35C) |
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Physical Specifications |
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Dimensions |
36.0 mm x 24.4 mm x 11.1 mm (excluding mounting tabs), 36.6 mm (width across tabs) |
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Weight |
16.5 grams |
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Enclosure material |
Aluminum |
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Regulatory compliance |
ROHS, CE |
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Integration |
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Connectors |
Data/power output: micro-DB9 |
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Software |
MIP™ Monitor, MIP™ Hard and Soft Iron Calibration, Windows XP/Vista/7/8 compatible |
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Compatibility |
Protocol compatibility with 3DM-GX3® and 3DM- RQ1-45™ sensor families. |
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Software development kit (SDK) |
MIP™ data communications protocol with sample code available (OS and computing platform independent) |
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Very stable and accurate under dynamic conditions such as:
- Unmanned vehicle navigation
- Platform stabilization, artificial horizon
- Camera and antenna pointing
- Personnel tracking
- Health and usage monitoring of vehicles
Contact for pricing and lead time--a minimum order quantity may apply
General Documentation
- 3DM-GX4 -25™ Product Datasheet
- 3DM-GX4 -25™ Quick Start Guide
- 3DM-GX4 -25™ User Manual
- 3DM-GX4-25™ Data Communications Protocol
- Inertial products overview
- 3DM-GX4™ Products Declaration of Conformity
Technical Notes
- Migrating From a GX3® Series Sensor to a GX4™
- Using a Hardware Datalogger with a 3DM-GX4™
- 3DM-GX4-25™ Communication and Power Connector
Mechanical Prints (Uncontrolled)
- 3DM-GX4-25™ Block Diagram
- 6224-0100 Craft Cable with Micro DB9 and 9 flying leads
- 6212-1040 Micro D-to-USB Communication and Power Cable
- 6212-1000 Micro D-to-RS232 Communication and Power Cable
Video
Software
- MIP Monitor Data Acquisition Software
- MIP Software Development C Code Sample for Windows and Linux Version 1.1
- SensorConnect Data Acquisition Software (beta)
Mechanical
