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MEMS Attitude and Heading Reference System (AHRS)

AHRS-MU4022&6006-01

MU4022

Product Advantages & Applications

The MU4022 high-dynamic MEMS Attitude and Heading Reference System (AHRS) is a reliable, cost-effective six-axis MEMS inertial system, applicable to navigation, control and measurement scenarios like satellites, vehicles, ships and UAVs. It integrates high-performance MEMS gyroscopes and accelerometers (both industry-leading), with 100% domestically sourced electronic components; long-term high measurement accuracy is ensured via full-temperature parameter compensation.
 

Advanced Process & Technology

The module integrates leading-level MEMS gyroscopes and accelerometers, with built-in full-temperature compensation. Combined with overall vibration damping and sealing design, it can accurately measure the carrier’s motion parameters even in harsh environments, providing a low-cost and highly reliable solution. Meanwhile, relying on technologies such as high-precision device manufacturing and full-temperature static/dynamic error compensation, the product’s high performance and excellent 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. Orientation in complex environments (e.g., mines)
  2. Individual soldier north-seeking
  3. Military equipment calibration
  4. Tunnel engineering
  5. Geological exploration
Performance Specifications
Gyroscope
Range (°/s) ±500
Full-Temp Bias (°/h) ≤30
Bias Stability (°/h, 10s Smooth) ≤5
Bias Stability (°/h, Allan, Typ) 0.5
Bias Repeatability (°/h) ≤3
Angle Random Walk (°/√h) ≤0.3
Scale Factor Nonlinearity (ppm) ≤150
Threshold/Resolution (°/h) ≤3
Bandwidth (Hz) 200
Accelerometer
Range (g) ±50
Full-Temp Bias (mg) ≤3 (XY); ≤5 (Z)
Bias Stability (μg, 10s Smooth) ≤100
Bias Stability (μg, Allan) ≤30
Bias Repeatability (μg) ≤300
Velocity Random Walk (mm/√h) ≤40
Scale Factor Nonlinearity (ppm) ≤500
Threshold/Resolution (μg) ≤50
Bandwidth (Hz, Adjustable) 150
System
Pitch Measurement Range (°) ±90
Roll Measurement Range (°) ±180
Attitude Accuracy (°, RMS) Steady-state ≤0.2; Dynamic ≤2
Electrical & Mechanical
Power Supply (V) 5-12
Power Consumption (W) 1.5
Start-up Time (s) 2
Communication Interface 1×RS-422, 2×RS-232, 1×Synchronous TTL Output, 1×Synchronous TTL Input
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)