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MEMS Attitude and Heading Reference System (AHRS)

MU4016

Core Advantages & Applications

The MU4016 high-dynamic MEMS Attitude and Heading Reference System (AHRS) is a reliable, cost-effective six-axis MEMS inertial system, suitable for navigation, control and measurement scenarios such as satellites, vehicles, ships and UAVs. Integrated with high-performance MEMS gyroscopes and accelerometers in an independent structure, it achieves long-term high measurement accuracy via full-temperature parameter compensation (zero offset, scale factor, etc.), and outputs the carrier’s attitude information through attitude calculation.
 

Advanced Process & Technology

The MEMS gyroscopes and accelerometers integrated in the module represent the leading level of MEMS inertial devices. With built-in full-temperature compensation, plus overall vibration damping and sealing design, it can accurately measure the carrier’s motion parameters in harsh environments, providing a low-cost and highly reliable solution. Meanwhile, relying on technologies like high-precision device manufacturing and full-temperature static/dynamic error compensation (e.g., coning error), the product’s high performance and optimal user experience are guaranteed.

Key Features

  1. industrial-grade, board-level screened
  2. High dynamic performance, large-range X-axis accelerometer
  3. Small size, low weight, low power consumption
  4. Full-temperature calibration compensation (-45°C to +80°C)
  5. 1KHz high-speed sampling
  6. Resistant to harsh mechanical environments
  7. Adaptive attitude and heading algorithm
  8. Supports in-system software upgrade

Main Applications

  1. Airborne backup attitude and heading
  2. Vessel/vehicle attitude measurement
  3. Port measurement system
  4. Mobile satellite communication 
  5. Radar/infrared antenna stabilization platform
  6. UAV attitude reference/trajectory control
  7. Projectile flight control
Performance Specifications
Gyroscope
Range (°/s) ±500
Full-Temp Bias (°/h) ≤3
Bias Stability (°/h, 10s Smooth) ≤0.3
Bias Repeatability (°/h) ≤0.3
Angle Random Walk (°/√h) ≤0.05
Scale Factor Nonlinearity (ppm) ≤150
Threshold/Resolution (°/h) ≤3
Bandwidth (Hz) 200
Accelerometer
Range (g) ±30
Full-Temp Bias (mg) ≤2
Bias Stability (μg, 10s Smooth) ≤100
Bias Repeatability (μg) ≤100
Scale Factor Nonlinearity (ppm) ≤500
Threshold/Resolution (μg) ≤50
Bandwidth (Hz, Adjustable) 150
Attitude & Heading System
Pitch Measurement Range (°) ±90
Roll Measurement Range (°) ±180
Attitude Accuracy (°, RMS, No Satellite Assistance) Steady-state ≤0.1; Dynamic ≤0.5
Electrical & Mechanical
Power Supply (V) 5-12
Power Consumption (W) 1.5
Start-up Time (s) 2
Communication Interface RS-422/RS-232/PPS IN/TOV
Update Rate (Hz) 200 (Configurable, Max 1kHz)
Dimensions (mm×mm×mm) 44.8×38.6×21.5
Weight (g) 55±5
Environmental Adaptability
Operating Temperature (°C) -45 ~ 80
Storage Temperature (°C) -55 ~ 85
Vibration (g, Rms) 6.06
Shock (g) 1000g/1ms (With Power)