Fiber Optic Gyro North Finder 0.3 deg Accuracy Vehicle Mounted Industrial Navigation System

The NF701A is a high-precision Fiber Optic Gyroscope (FOG) North Finder engineered for vehicle-mounted industrial navigation systems. By detecting the Earth's rotation angular rate through a FOG, it autonomously calculates true north azimuth within 3 minutes, providing critical heading reference for mining trucks, construction equipment, and mobile industrial platforms operating in GPS-denied or magnetically noisy environments.

115 x 90 x 110 mm

• North seeking time: <= 3 minutes
• North seeking accuracy (1 sigma): <= 0.3 deg (NF701A); <= 0.5 deg (NF701B)
• Horizontal accuracy: <= 0.05 deg (1 sigma)
• Circumference: <= 0.5 deg (1 sigma)
• Weight: <= 2 kg
• Power supply: DC 12V ~ 24V
• Power consumption: 15 W (peak)
• Interface: RS422
• Working mode: Automatic self-check on power-up, controlled north seeking via upper computer

• Operating temperature: -40 deg C to +70 deg C
• Storage temperature: -55 deg C to +85 deg C
• Humidity: Relative humidity less than 95%

• MTBF >= 1000 hours
• MTTR <= 30 minutes

• Mining Truck Navigation: GPS-independent heading for heavy haul trucks in open-pit mines
• Construction Equipment Positioning: Precise azimuth for autonomous bulldozers and graders
• Mobile Crane Alignment: Quick north reference for crane setup and load positioning
• Railway Maintenance Vehicles: Accurate heading for track inspection and repair equipment
• Emergency Response Vehicles: Reliable orientation for fire trucks and rescue vehicles in GPS-denied areas