U123D
The U123D is a FOG-based inertial measurement unit (IMU) combining three axes of MostaTech's smallest fiber optic gyroscopes with three axes of MEMS accelerometers. With a compact cylindrical form factor of 40 x 90mm 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 90 / ∅40 x 100 |
| Weight (grams) | 150 (aluminium) / 200 (μ-metal) |
| 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) | < 0.3 / 0.01 |
| 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 | aluminium / μ-metal |
