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3DM-GX2®
Attitude Heading Reference System (AHRS)
Features and Benefits
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Small, light-weight, low-power design ideal for size-sensitive applications
including wearable devices
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Fully temperature compensated over entire operational range
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Calibrated for sensor misalignment, gyro G-sensitivity, and gyro scale factor
non-linearity
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Simultaneous sampling for improved time integration performance
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Available with wireless and USB communication interfaces
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User adjustable data rate (1 to 256Hz) and sensor bandwidth(1 to 100Hz)
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Outputs include Euler angles, rotation matrix, deltaAngle & deltaVelocity,
acceleration and angular rate vectors
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Description
3DM-GX2® is a high-performance gyro enhanced orientation sensor which utilizes
miniature MEMS sensor technology. It combines a triaxial accelerometer,
triaxial gyro, triaxial magnetometer, temperature sensors, and an on-board
processor running a sophisticated sensor fusion algorithm.
3DM-GX2® offers a range of output data quantities from fully calibrated
inertial measurements (acceleration, angular rate and magnetic field or
deltaAngle & deltaVelocity vectors) to computed orientation estimates
(pitch & roll or rotation matrix). All quantities are fully temperature
compensated and corrected for sensor misalignment. The angular rate quantities
are further corrected for G-sensitivity and scale factor non-linearity to third
order.
3DM-GX2®'s communications interface hardware is contained in a separable
module, and can therefore be easily customized. Currently available interface
modules include a wireless transceiver, USB 2.0, RS232 and RS422. An OEM
version is available without the communications interface enabling the sensor
to be integrated directly into a host system's circuitboard, providing a very
compact sensing solution.
The system architecture has been carefully designed to substantially eliminate
common sources of error such as hysteresis induced by temperature changes and
sensitivity to supply voltage variations. The use of six independent
Delta-Sigma A/D converters (one for each sensor) ensures that all sensors are
sampled simultaneously, and that the best possible time integration results are
achieved. On-board coning and sculling compensation allows for use of lower
data output rates while maintaining performance of a fast internal sampling
rate. 3DM-GX2® incorporates an integral triaxial magnetometer; optionally, the
magnetometer can be located remotely to reduce hard and soft iron interference.
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Applications
Inertial aiding INS and GPS, location tracking
Unmanned vehicles, robotics - navigation, artificial horizon
Computer science, biomedical - animation, linkage free tracking/control
Platform stabilization
Antenna and camera pointing
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Specifications
Orientation Range
(pitch, roll, yaw) |
360 about all axes |
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Accelerometer range |
Accelerometers: 5 g standard 10 g and 2 g also available |
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Accelerometer bias stability |
0.010 g for 10 g range
0.005 g for 5 g range
0.003 g for 2 g range |
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Accelerometer Nonlinearity |
0.2% |
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Gyro range |
gyros: 300/sec standard, 1200/sec, 600/ sec, 150/sec, 75/sec
also available |
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Gyro Bias Stability |
0.2/sec for 300/sec |
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Gyro nonlinearity |
0.2% |
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Magnetometer range |
1.2 Gauss |
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Magnetometer nonlinearity |
0.4% |
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Magnetometer bias stability |
0.01 Gauss |
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A/D resolution |
16 bits |
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Orientation Accuracy |
0.5 typical for static test conditions
2.0 typical for dynamic (cyclic) test conditions & for arbitrary
orientation angles |
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Orientation resolution |
<0.1 minimum |
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Repeatability |
0.20 |
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Output modes |
Acceleration and angular rate, deltaAngle and deltaVelocity, Euler angles,
rotation matrix |
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Interface options |
RS232, RS422, USB 2.0 and wireless - 2.45 GHz IEEE 802.15.4 direct sequence
spread spectrum, license free worldwide (2.450 to 2.490 GHz) - 16 channels |
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Wireless communication range |
70 m |
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Digital output rates |
1 to 250 Hz with USB interface 1 to 100 Hz with wireless interface |
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Serial data rate |
115200 bps |
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Supply voltage |
+4.5 to +16 volts DC |
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Power consumption |
90 mA |
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Connectors |
micro DB9 |
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Operating temp. |
-40 to +70C with enclosure -40 to +85C without enclosure |
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Dimensions |
41 mm x 63 mm x 32 mm with enclosure 32 mm x 36 mm x 24 mm without enclosure |
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Weight |
39 grams with enclosure, 16 grams without enclosure |
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Shock limit |
1000 g (unpowered), 500g (powered) |
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RF Output Power |
0dBm (1 mW) |
U.S. Patents Pending
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General Documentation
Technical Notes
Mechanical Prints
FAQ's
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3DM-GX2® AHRS Starter Kits
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USB 3DM-GX2 inertial measurement unit starter kit
3DM-GX2-USB-SK1
Includes
(1) 3DM-GX2 USB-M IMU,(1)Communication Cable, Windows XP compatible software
Part Number: 6215-2341
Online price: $1695.00
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MicroStrain has identified your location as
United States. If this is incorrect please
contact sales at 802-862-6629 or sales@microstrain.com
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Wireless 3DM-GX2 inertial measurement unit starter kit
3DM-GX2-2400-SK1
Includes
(1) 3DM-GX2 2400-M wireless IMU,(1)Battery pack,(1) USB Base station, (1) power supply, Windows XP compatible software
Part Number: 6215-2351
Online price: $3095.00
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MicroStrain has identified your location as
United States. If this is incorrect please
contact sales at 802-862-6629 or sales@microstrain.com
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