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HG3900 MEMS Inertial Measurement Unit

Overview
The next generation HG3900 IMU uses all-silicon MEMS (microelectromechanical system) technology to create a low size, weight and power (SWaP) package that performs as well or better than similar-sized IMUs using fiber optic gyroscope (FOG) or ring laser gyroscope (RLG) technology.

Specifications

Key Differentiators

  • Certifications

    • None
  • Features & Benefits

    • SMALLER, LOWER POWER, HIGHER PERFORMANCE IMUs than available in FOG, RLG & Quartz-MEMS based IMUs today; with RELIABLE Performance throughout the product life without repair or overhaul.
    • The HG3900 offers many factory configurable features, such as data rate output, output message protocol, and flight control filtering, to simplify system integration.
  • Key Savings

    • Reduced Size & Power

Dimensions

  • Weight

    • < 2 pounds
  • Dimensions

    • 2.95 Inches Diameter (excluding mounting flanges)
    • 3.1 Inches Height
  • Volume

    • 328 cubic centimetre

Performance Data

  • Accel Bias In-Run Stability (mg 1σ)

    • 0.05
    • 0.10
  • Accel Bias Repeatability (mg 1σ)

    • 0.5
    • 1.0
  • Accelerometer Operating Range

    • 37 (g)
    • 60 (option)
    • 80 (option)
  • Accel Bandwidth, -90°/-3 dB

    • >70 hertz hertz
  • Power Consumption (Typical)

    • < 2.5 W
  • Power Consumption (Maximum)

    • < 6 W
  • Gyro Bandwidth, -90°/-3 dB

    • >70 hertz hertz
  • Gyro Bias In-Run Stability

    • 0.50 °∕hr 1σ
    • 1.0 °∕hr 1σ
  • Gyro Bias Repeatability

    • 0.08 °∕hr 1σ
    • 0.10 °∕hr 1σ
  • Communication Protocols

    • ASYNC RS-422/RS-485 voltage alternating current
    • SDLC RS-422/RS-485 voltage alternating current
  • Asynchronous Baud Rate

    • 1 KHz
  • Operating Temperature

    • -54°C to +85°C
  • Gyro Operating Range

    • 1074
  • Chassis Included

    • Yes
  • Component of

    • Commercial Camera Stabilization
    • Control and Navigation of Unmanned Aerial Vehicles
    • Ground and Oceanographic Surveying
    • Missiles
    • Munitions
    • Projectiles
    • Robotics
  • Components

    • Internal Environmental Isolation System to attenuate unwanted inputs
    • Silicon MEMS Accelerometers
    • Silicon MEMS Gyros
  • Data Rate

    • 600Hz Flight Control / 100Hz Inertial Data Rate (standard)
    • Others available upon request
  • Accel VRW

    • 0.065 ft/s/√hr, max m/s/√hr
  • Software

    • ASYNC RS-422/RS-485
    • SDLC RS-422/RS-485
  • Replaces

    • HG1900 Inertial Measurement Units
  • Gyro ARW

    • 0.015 °∕√hr
    • 0.030 °∕√hr

Resources

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