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3DM-GX3® -15 -- Product no longer stocked – limited availability

Introduction

The 3DM-GX3® -15 is a high-performance, miniature Inertial Measurement Unit and Vertical Gyro, utilizing MEMS sensor technology. It combines a triaxial accelerometer, triaxial gyro, temperature sensors, and an on-board processor running a sophisticated sensor fusion algorithm to provide static and dynamic orientation, and inertial measurements.

 

System Overview

The 3DM-GX3® -15 offers a range of fully calibrated inertial measurements including acceleration, angular rate, deltaTheta, and deltaVelocity vectors. It can also output computed orientation estimates including Euler angles (pitch and roll), rotation matrix and quaternion. 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® -15 architecture has been carefully designed to substantially eliminate common sources of error such as sensitivity to supply voltage variations. On-board coning and sculling compensation allows for use of lower data output rates while maintaining performance of a fast internal sampling rate.  For those users, integrators or OEMs who develop their own orientation and navigation applications, the 3DM-GX3® -15 is shipped with a complete Data Communications Protocol guide that provides access to the powerful LORD MicroStrain® Inertial Packet Protocol (MIP).  Applications of your own design can readily be developed in any coding language and on any computing platform including microprocessors.  The 3DM-GX3® -15 is initially sold as a starter kit consisting of an IMU module, RS-232 or USB communication and power cable, software CD, user manual, and quick start guide.

Features & Benefits

Best in Class

  •     precise inertial measurements
  •     high-speed sample rate & flexible data outputs
  •     high performance under vibration and high g

Easiest to Use

  • smallest, lightest industrial IMU available
  • simple integration supported by SDK and comprehensive API

Cost Effective

  •     reduced cost and rapid time to market for customer’s applications
  •     aggressive volume discount schedule
Specifications

IMU Specifications

Attitude and Heading

Attitude heading range

360° about all 3 axes

Accelerometer range

±5 g standard

Gyroscope range

±300°/sec standard

Static accuracy

±0.5° pitch and roll typical for static test conditions

Dynamic accuracy

±2.0° pitch and roll for dynamic (cyclic) test conditions and for arbitrary angles

Long term drift

pitch and roll drift eliminated by complementary filter architecture

Repeatability

0.2°

Resolution

<0.1°

Data output rate

up 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

Output modes

acceleration, angular rate, deltaTheta, deltaVelocity, Euler angles, quaternion, rotation matrix

General

A/D resolution

16 bits SAR oversampled to 17 bits

Interface options

USB 2.0 or RS232

Baud rate

115,200 bps to 921,600 bps

Power supply voltage

+3.2 to +16 volts DC

Power consumption

80 mA @ 5 volts with USB

Connector

micro-DB9

Operating temperature

-40° C to +70° C

Dimensions

44 mm x 24 mm x 11 mm - excluding mounting tabs, width across tabs 37 mm

Weight

18 grams

ROHS

compliant

Shock limit

500 g

Software utility

CD in starter kit (XP/Vista/Win7/Win8 compatible)

Software development kit (SDK)

complete data communications protocol and sample code

Sensor Specifications

 

Accels

Gyros

Measurement range

±5 g

±300°/sec

Non-linearity

±0.1 % fs

±0.03 % fs

In-run bias stability

±0.04 mg

18°/hr

Initial bias error

±0.002 g

±0.25°/sec

Scale factor stability

±0.05 %

±0.05 %

Noise density

80 µg/√Hz

0.03°/sec/√Hz

Alignment error

±0.05°

±0.05°

User adjustable bandwidth

225 Hz max

440 Hz max

Sampling rate

30 kHz

30 kHz

Options

Accelerometer range

±1.7 g, ±16 g, ±50 g

Gyroscope range

±50°/sec, ±600°/sec, ±1200°/sec

 

Product Taxonomy
3DM-GX3-15
Applications

Accurate orientation and positioning under dynamic conditions such as:

  • Inertial Aiding of GPS
  • Unmanned Vehicle Navigation
  • Platform Stabilization, Artificial Horizon
  • Antenna and Camera Pointing
  • Health and Usage Monitoring of Vehicles
  • Reconnaissance, Surveillance, and Target Acquisition
  • Robotic Control
  • Personnel Tracking
Inertial Type
Legacy
Discontinued
Product no longer stocked – limited availability
Contact for pricing and lead time--a minimum order quantity may apply
Datasheet URL
http://files.microstrain.com/3DM-GX3-15-Inertial-Measurement-Unit.pdf
Manual
http://files.microstrain.com/3DM-GX3-15,-25%20Quick%20Start%20Guide.pdf
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