Fiber-Optic Gyrocompass & North Seeker

TFOG60 three-axis fiber optic gyroscope

Gyros & INS

Autonomous true-north finding without satellites: gyrocompass systems (CA series) and north seekers (NS series) with 0.1–0.3° class north-finding accuracy.

Fiber-Optic Gyrocompass — C501 / C505 / C507

ItemC501C505C507Evidence
Heading accuracy≤0.1°≤0.5°≤0.75°Manufacturer spec
Attitude accuracy≤0.01°≤0.02°≤0.03°Manufacturer spec
Heave accuracy5 cm or 5%5 cm or 5%5 cm or 5%Manufacturer spec
Startup / alignment≤5 s / ≤10 min≤5 s / ≤10 min≤5 s / ≤10 minManufacturer spec
Data update rate≤200 Hz≤200 Hz≤200 HzManufacturer spec
Power / voltage≤20 W, 18–36 V DC——Manufacturer spec
Dimensions / weight270×212×140 mm, ≤5 kg——Manufacturer spec
Environment−40…+65 °C, aluminum——Manufacturer spec
InterfacesRS232, RS422——Manufacturer spec

Fiber-Optic North Seeker — N001 / N002

ItemN001N002Evidence
North-finding accuracy≤0.06°≤0.1°Manufacturer spec
Azimuth resolution0.01°0.01°Manufacturer spec
Attitude accuracy / range≤0.01°; ±90°≤0.01°; ±90°Manufacturer spec
Startup / north-finding time≤10 s / ≤3 min≤10 s / ≤3 minManufacturer spec
Power / voltage≤20 W, 10–26 V DC—Manufacturer spec
Dimensions / weight138×122×120 mm (display) or 117×104×105 mm; ≤1.5 / 1.1 kg—Manufacturer spec
Environment−40…+65 °C, aluminum—Manufacturer spec
InterfacesRS232, RS422—Manufacturer spec

Applications

Mining and drilling alignment · antenna and radar north-alignment · ship and vehicle initial alignment · tunnel surveying.

No GNSS needed?
Correct — gyrocompassing finds true north from Earth rotation alone, ideal for GPS-denied initial alignment (manufacturer specification).

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