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3DM-GX3® -25

Submitted by scott on

3DM-GX3® -25

Miniature Attitude Heading Reference System (AHRS)

Overview

3DM-GX3® -25 is a high-performance miniature Attitude Heading Reference System, utilizing 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 to provide static and dynamic orientation, and inertial measurements.

It 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, including pitch, roll and heading (yaw) or rotation matrix. All quantities are fully temperature compensated and are mathematically aligned to an orthogonal coordinate system. The angular rate quantities are further corrected for G-sensitivity and scale factor non-linearity to third order.

The 3DM-GX3® -25 AHRS is available with RS-232, USB 2.0 and TTL serial communication interfaces and is a member of the 3DM-GX3® family of inertial sensors.

Microstrain 3dm-gx3-25 miniature attitude heading reference system orientation
Applications
  • Inertial aiding of GPS
  • Location tracking of personnel
  • Unmanned vehicles, navigation, artificial horizon
  • Computer science, biomedical animation, linkage free tracking/control
  • Platform stabilization
  • Antenna and camera pointing
  • Robotics
  • Smallest and lightest AHRS available on the market, with versions weighing only 11.5 grams
  • Fully temperature compensated over entire -40° to +75°C operational range
  • Calibrated for sensor misalignment, gyro G-sensitivity, and gyro scale factor non-linearity
  • Improved navigation under vibration, as sensors are sampled at 30 kHz and digitally filtered and scaled into physical units; coning and sculling integrals are computed at 1 kHz
  • Available with RS-232, USB 2.0 and TTL serial communication interfaces
  • User adjustable data rate, 1 to 1000 Hz
  • Outputs Euler angles, rotation matrix, deltaAngle & deltaVelocity, acceleration angular rate and magnetic field
Orientation range 360° about all axes
Accelerometer range ± 5 g standard
± 1.7 g, ± 16 g, and ± 50 g also available
Accelerometer bias stability ± 0.005 g for ± 5 g range
± 0.003 g for ± 1.7 g range
± 0.010 g for ± 16 g range
± 0.050 g for ± 50 g range
Accelerometer nonlinearity 0.2%
Gyro range ± 300°/sec standard
± 1200°/sec, ± 600°/sec, ± 50°/sec also available
Gyro bias stability ± 0.2°/sec for +/- 300°/sec
Gyro nonlinearity 0.2%
Magnetometer range +/- 2.5 Gauss
Magnetometer nonlinearity 0.4%
Magnetometer bias stability 0.01 Gauss
A/D resolution 16 bits (SAR)(oversampled to 17 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°
Repeatability 0.2°
Output modes Acceleration, angular rate and magnetic field
DeltaAngle and deltaVelocity
Euler angles
Rotation matrix
Interface options Standard: USB 2.0 or RS232
OEM: USB 2.0 / TTL serial (3.3 volts)
Data rate 1 to 1000 Hz
Filtering Sensors sampled at 30 kHz, digitally filtered (user adjustable ) and scaled into physical units;
Coning and sculling integrals computed at 1 kHz.
Baud rate 115200 baud to 921,600 baud
Supply voltage Supply voltage Standard: 3.2 to 16 volts
OEM: 3.2 to 5.5 volts
Power consumption 80 mA @ 5 volts with USB
Connectors Standard: micro-DB9
OEM: Samtec FTSH-105-01-F-D-K
Operating temperature -40° to +70°C (consult factory for higher temperature operation)
Dimensions Standard: 44 mm x 25 mm x 11 mm - excluding mounting tabs, width across tabs 37 mm
OEM: 38 mm x 24 mm x 12 mm
Weight Standard: 18 grams RS-232 and USB
OEM: 11.5 grams
Shock limit 1000g (unpowered), 500g (powered)

*Accuracy and stability specifications obtained over operating temperatures of -40 to +70°C with known sine and step inputs, including angular rates of +/- 300° per second.

Patent Pending

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3DM-GX3-25 USB Starter Kit
3DM-GX3-25 USB Starter Kit

3DM-GX3-25-USB-SK1
Includes (1) 3DM-GX3-25-RS232/USB-M inertial measurement unit, (1) USB communication cable and software

Part Number: 6305-0011
Part Number: 6305-1042

Online Price: $1,895.00
Part Number: 6223-4241
3DM-GX3-25 RS-232 Starter Kit
3DM-GX3-25 RS-232 Starter Kit

3DM-GX3-25-RS232-SK1
Includes (1) 3DM-GX3-25-RS232/USB-M inertial measurement unit, (1)RS-232 communication cable, (1) power supply and software

Part Number: 6305-0011
Part Number: 6305-1042

Online Price: $1,895.00
Part Number: 6223-4221