MTi-3 AHRS

The MTi-3 is a self-contained Attitude and Heading Reference System (AHRS). In addition to the data collected and computed by the MTi-1 and the MTi-2, it delivers true North-referenced yaw, or heading.

The MTi-3 is a self-contained Vertical Reference Unit (AHRS) as a 12.1 x 12.1 mm module. The Xsens optimized strapdown algorithm (AttitudeEngineTM) performs high-speed dead-reckoning calculations at 1 kHz allowing accurate capture of high frequency motions. Xsens’ industry-leading sensor fusion algorithm provides high accuracy and sensor auto-calibration in a cost-effective module for a wide range of (embedded) applications. It relieves users from the design, integration and maintenance of gyroscopes, accelerometers and other sensors.

Technical specifications

Sensor Fusion Performance

  • Roll, pitch
    0.5 deg RMS
  • Yaw/Heading
    2 deg RMS
  • Position
    Strapdown Integration (SDI): Yes

Sensing Components

  • Gyroscope
    Standard full range: 2000 deg/s
    In-run bias stability: 6 deg/h
    Noise density: 0.003 º/s/√Hz
  • Accelerometer
    Standard full range: 16g
    In-run bias stability: 40 µg
    Noise density: 70 µg/√Hz
  • Magnetometer
    Available

System Specifications

  • Mechanical
    IP-rating (equivalent): IP00
    Dimensions: 12.1×12.1×2.55 mm
    Weight: 0.6 gr
  • Electrical
    Input voltage: 2.19 to 3.6V
    Power consumption: 44 mW @ 3V
  • Interfaces/IO
    Interfaces: UART, SPI, I²C
    Protocols: Xbus
    Output frequency: up to 1kHz, 100 Hz SDI

 

12.1 x 12.1 x 2.55 mm