ANF-301B
ANF-301B is a cylindrical MEMS north-seeking instrument that continuously measures inclination, tool-face angle and azimuth. Its gyroscopes provide bias instability of 0.02°/h or better, and the system maintains attitude accuracy within 0.2° across an operating range extending to +120°C.
Configurable homing and self-alignment functions allow the sensor to be adapted to the required startup behavior. Zero-bias and installation-misalignment compensation reduce accumulated heading and mounting errors, and full-temperature calibration maintains consistency as the environment changes.
Specifications:
| Dimensions | Ø31.8 × 85 mm |
| Weight | 145 ±10 g |
| Power consumption | ≤2 W |
| Supply voltage | 5 to 12 V DC |
| Startup time | ≤2 s |
| Maximum update rate | 200 Hz |
| Gyroscope range | ±200°/s |
| Gyroscope bias instability | ≤0.02°/h |
| Angular random walk | ≤0.01°/√h |
| Accelerometer range | ±30 g |
| Accelerometer bias instability | ≤50 µg |
| Velocity random walk | ≤0.04 m/s/√h |
| Attitude accuracy | ≤0.2° |
