Cutting-Edge Low-SWaP Fiber Optic Gyroscopes (FOG) & FOG IMUs for Precision Motion & Orientation Measurement
U123D Low-power three-axis FOG IMU in cylindrical housing

Low-power three-axis FOG IMU in cylindrical housing

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The U123D is a FOG-based inertial measurement unit (IMU) combining three axes of Fizoptika's smallest fiber optic gyroscopes with three axes of MEMS accelerometers. With a compact cylindrical form factor of 40 x 100mm and a power consumption of only 1.5W, the IMU incorporates a fully-integrated three-channel ADC board with serial RS422 output.

The non-ITAR IMU is available with an aluminium or magnetically-shielded μ-metal housing, and is ideal for marine vessels, USVs and ROVs, as well as for integration into higher order systems such as inertial navigation systems (INS).

Dimensions (mm) ∅40 x 100
Weight (grams) 180
Power (W) 1.5
Gyro Input Range (°/s) 400
Gyro Bias RMS (°/h) 1
Gyro ARW (°/√h) 0.05
Gyro Bandwidth (Hz) 1000
Magnetic Response (°/h/Gauss) < 0.1
Acc. Range (g) 10
Acc. Bias Stability (mg) 0.2
Acc. Bandwidth (Hz) 250
Data Rate (kHz) 4
Baud Rate (kBd) 921.6
Vibration (g, RMS) 6
Shock Resistance (g) 350
Operating Temperature (°C) -40…+70
Housing μ-metal