Dynamic FOG North Finder 0.02°–0.5° for On-The-Move Alignment, Mobile Mapping, Drilling Toolface, Vehicle Navigation & Integrated INS/GNSS Systems

Accuracy ranges from 0.5° to 0.01°, and can also be customized to meet other specific requirements.

NF-Series High Precision Fiber Optic North Finder

The NF-Series North Finder is a rugged inertial orientation instrument designed to provide fast, autonomous, and high-accuracy True North reference without GPS or magnetic sensors. Based on fiber optic gyroscope (FOG) technology, it measures Earth’s rotation angular velocity and calculates the azimuth angle between the host platform and geographic north.

With ≤3-minute alignment, 0.1° class accuracy, ±15° tilt adaptation, and RS422/RS232 output, the device is suitable for geodetic survey, tunnel construction, underground mining, radar/antenna alignment, mobile mapping, and GNSS-denied navigation.

Unlike magnetic compasses, the NF-Series is not affected by steel structures, power cables, or electromagnetic noise. Its solid-state optical gyro has no rotating parts, offering high shock resistance and long-term reliability in field,and industrial environments.

Applications:​ surveying, mining, tunneling, defense, antenna alignment, drone ground test, INS initialization, oil drilling, bridge/dam monitoring.

Outputs:​ True North azimuth, pitch, roll, status, timestamp.

Interfaces:​ RS232 / RS422 / CAN / Ethernet (model dependent).

Supply:​ 9–36V DC.

Environment:​ −40°C to +70°C, IP65 optional.

Communication & Antenna

• SATCOM antenna true north reference

• Quick-deploy field communication

• Radar truck antenna alignment

• Ship/surface vessel antenna stabilization