3DM-GX2®:: MicroStrain®, AHRS Orientation Sensor

OVERVIEW

SPECIFICATIONS

DOCUMENTATION

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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.

The 3DM-GX2® Software Development Kit (SDK) provides application builders with robust protocols and source code samples to operate the Inertia-Link® and 3DM-GX2® orientation sensors. The SDK includes a complete Data Communications Protocol manual, a detailed Users manual, ANSI C Implementation and API. Sample applications demonstrating many protocol commands are provided with fully-commented source code for Microsoft® Visual Studio C++ 2003/2008 Express, LabVIEW® 7.1.1, Microsoft® Visual Studio Visual Basic 2005 and Microsoft® Visual Basic 6.0.

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

Specifications

Orientation Range (pitch, roll, yaw)	360° about all axes
Accelerometer range	Accelerometers: ± 5 g standard ± 10 g and ± 2 g also available
Accelerometer bias stability	± 0.010 g for ± 10 g range ± 0.005 g for ± 5 g range ± 0.003 g for ± 2 g range
Accelerometer Nonlinearity	0.2%
Gyro range	gyros: ± 300°/sec standard, ± 1200°/sec, ± 600°/ sec, ± 150°/sec, ± 75°/sec also available
Gyro Bias Stability	± 0.2°/sec for ± 300°/sec
Gyro nonlinearity	0.2%
Magnetometer range	± 1.2 Gauss
Magnetometer nonlinearity	0.4%
Magnetometer bias stability	0.01 Gauss
A/D resolution	16 bits
Orientation Accuracy	± 0.5° typical for static test conditions ± 2.0° typical for dynamic (cyclic) test conditions & for arbitrary orientation angles
Orientation resolution	<0.1° minimum
Repeatability	0.20°
Output modes	Acceleration and angular rate, deltaAngle and deltaVelocity, Euler angles, rotation matrix
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
Wireless communication range	70 m
Digital output rates	Standard RS-232, USB or RS-422 interface: Up to 237Hz Wireless interface: Up to 100Hz OEM or custom interface: Up to 1000Hz
Serial data rate	115200 bps
Supply voltage	+4.5 to 16 volts
Power consumption	90 mA
Connectors	micro DB9
Operating temp.	-40 to +70°C with enclosure -40 to +85°C without enclosure
Dimensions	41 mm x 63 mm x 32 mm with enclosure 32 mm x 36 mm x 24 mm without enclosure
Weight	39 grams with enclosure, 16 grams without enclosure
Shock limit	1000 g (unpowered), 500g (powered)
RF Output Power	0dBm (1 mW)

U.S. Patents Pending

General Documentation

Software Development Kit

3DM-GX2® Orientation SDK

Technical Notes

Mechanical Prints

Code Samples

FAQ's

Inertia-Link® and 3DM-GX2® FAQ's

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3DM-GX2® AHRS Starter Kits

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

MicroStrain has identified your location as United States. If this is incorrect please contact sales at 802-862-6629 or sales@microstrain.com

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

MicroStrain has identified your location as United States. If this is incorrect please contact sales at 802-862-6629 or sales@microstrain.com