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
Performance
Accel Bandwidth, -90°/-3 dB
- >70 hertz hertz
Key Benefits
- All silicon MEMS IMU with superior performance vs. similar size RLG and FOG based IMUs
- Highly robust, ruggedized to tolerate high vibration, shock and dynamic thermal environments
- Performance has been validated over full environments by U.S. Army/NTA labs
- Reduced Size & Power
- 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.
- Small size (3.1 x 3.0 inches), and low weight (less than 2 pounds)
- The HG3900 offers many factory configurable features, such as data rate output, output message protocol, and flight control filtering, to simplify system integration.
Gyro Operating Range
- 1074
Gyro Bias Repeatability
- .50 °∕hr 1σ
- 1.0 °∕hr 1σ
Gyro Bias In-Run Stability
- .08 °∕hr 1σ
- .10 °∕hr 1σ
Gyro Bandwidth, -90°/-3 dB
- >70 hertz hertz
Gyro ARW
- 0.015
- 0.030
Component of
- Commercial Camera Stabilization
- Control and Navigation of Unmanned Aerial Vehicles
- Ground and Oceanographic Surveying
- Missiles
- Munitions
- Projectiles
- Robotics
Accelerometer Operating Range
- 37 (g)
- 60 (option)
- 80 (option)
Accel Bias Repeatability (mg 1σ)
- 0.5
- 1.0
Accel Bias In-Run Stability (mg 1σ)
- 0.05
- 0.10
Physical
Weight
- < 2 pounds
Volume
- 328 cubic centimetre
Dimensions
- 2.95 Inches Diameter (excluding mounting flanges)
- 3.1 Inches Height
Connectivity and Systems
Software
- ASYNC RS-422/RS-485
- SDLC RS-422/RS-485
Data Rate
- 600Hz Flight Control / 100Hz Inertial Data Rate (standard)
- Others available upon request
Components
- Internal Environmental Isolation System to attenuate unwanted inputs
- Silicon MEMS Accelerometers
- Silicon MEMS Gyros
Communication Protocols
- ASYNC RS-422/RS-485
- SDLC RS-422/RS-485
Asynchronous Baud Rate
- 1 KHz
Maintenance
Replaces
- HG1900 Inertial Measurement Units
Power and Electrical
Power Consumption (Typical)
- < 2.5 W
Power Consumption (Maximum)
- < 6 W Watt
Mechanical
Operating Temperature
- -54°C to +85°C
Chassis Included
- Yes
Certification
Certifications
- None
