3-Axis Inertial Measurement Unit for Satellites

SKU: STIM318

Inertial Measurement Unit by Safran Group (2 more products)

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STIM318 Image

The STIM318 from Safran Group is an Inertial Measurement Unit that consists of 3 high-accuracy MEMS-based gyros, 3 high-stability accelerometers, and 3 inclinometers in a miniature package. This IMU has a range of 400 degrees/sec and gyro bias instability of 0.3 degrees/h. It has a gyro angular random walk of 0.15 degrees/√h and an accelerometer bias instability of 0.003 mg. The IMU communicates via a standard high-level RS-422 interface and uses a 32-bit RISC ARM microcontroller. It features a gyro that is based on Safran ButterflyGyro using a single-crystal silicon technology and comes with an electronically calibrated axis alignment. The IMU requires a supply voltage of 4.5-5.5 V and has a power consumption of 1.8-2.5 W. It has a mass of 57 g and measures 44.8 x 38.6 x 21.5 mm. The STIM318 is ideal for satellites, launch vehicles, missile systems, remote weapon systems, DIRCM, and target acquisition systems.

Product Specifications

Product Details

  • Part Number
    STIM318
  • Manufacturer
    Safran Group
  • Description
    3-Axis Inertial Measurement Unit for Satellites

General Parameters

  • Input Voltage
    5 V
  • Power Consumption
    1.8 to 2.5 W
  • Dynamic Range
    400 Degree/Sec
  • Angular Random Walk
    0.15 Degree/vh
  • Bias Stability
    0.3 Degree/hr
  • Scale Factor Stability
    50 to 400 ppm
  • Start up Time
    0.2 to 1 sec
  • Group Delay
    3.1 to 26 mS
  • Bandwidth
    150 to 208 Hz
  • Interface
    RS-422
  • Operating Temperature
    -40 to 85 Degree C
  • Radiation Tolerance
    48 to 125 krad

Technical Documents

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