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Precision Inertial Navigation Systems

High-performance Fiber Optic Gyrocompasses, Inertial Measurement Units, and Navigation Systems for marine, aviation, and land-based platforms. Engineered in China, trusted worldwide.

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About IntertialNavigation

QINGDAO THUNDSEA MARINE TECHNOLOGY CO., LTD is a leading manufacturer of high-precision inertial navigation systems and fiber optic gyrocompasses based in China. With years of engineering excellence, we deliver reliable, maintenance-free solutions for maritime, defense, and aerospace applications.

Our products are designed with strapdown technology, fast response times, and long warranties to ensure operational readiness in the most demanding environments. From underwater pipeline detection to airborne navigation, our systems meet international standards and customer-specific requirements.

  • Maintenance-Free Fiber Optic Systems
  • IP66 Waterproof & Ruggedized Design
  • Sub-0.1° Heading Accuracy
  • 80,000+ Hours Mean Time Between Failures
Inertial Navigation System

Our Products

Explore our range of high-precision inertial navigation systems, fiber optic gyrocompasses, and measurement units designed for marine, land, and airborne platforms.

FG-800A Fiber Optic Gyrocompass

FG-800A Fiber Optic Gyrocompass

IP66 Waterproof | 80,000 Hrs MTBF | <0.1° Heading Accuracy

  • Settling Time: 5 min
  • Attitude: 0.02deg, 1σ
  • Interface: RS232/RS422
  • Maintenance-Free | Strapdown Technology
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Model FG-500C

Model FG-500C Fiber Optic Gyrocompass

Long Warranty | Fast Response | Maintenance-Free

  • Roll & Pitch: 0.05°
  • Settling Time: 15 mins
  • Interface: RS232/RS422
  • Strapdown Technology | High Reliability
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CCS PTK-20

CCS PTK-20 Underwater INS

5min Alignment | Pipeline Detection

  • Alignment: 5 min
  • Attitude: 0.05deg, 1σ
  • Heading: 0.5deg, 1σ
  • Subsea Navigation | High Precision
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Model FG-1200-A/B

Model FG-1200-A/B FOG INS

High Performance | Rich Connectivity

  • Without Aiding: ≤0.05deg
  • With Aiding: ≤0.02deg
  • Multiple Input Options | High Stability
  • Land & Marine Applications
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TDF99IMU-D IMU

TDF99IMU-D Fiber Optic IMU

High Precision | Shock & Vibration Resistant

  • High Accuracy Dynamic Measurement
  • Robust Design for Harsh Environments
  • Low Drift | High Bandwidth
  • Ideal for Defense & Aerospace
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TDF61IMU0 IMU

TDF61IMU0 Fiber Optic IMU

Small Size | High-Precision | Land & Airborne

  • Compact Design for Weapon Platforms
  • High Accuracy Navigation
  • Low Power Consumption
  • Lightweight & Durable
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TDL46A Vehicle Navigation

TDL46A Vehicle-Mounted INS

Land Force Navigation | Optical Gyro

  • Vehicle-Mounted Positioning & Orientation
  • High Accuracy in Dynamic Environments
  • Military-Grade Reliability
  • Real-Time Attitude Reference
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FG-700B AHRS

Model FG-700B Fiber Optic AHRS

Fast Response | Heading Accuracy 0.5°

  • Roll & Pitch: 0.05°
  • Heave: 2 cm
  • Maintenance-Free Operation
  • Marine & Land Applications
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View All 27+ Products

Why Choose IntertialNavigation?

Our inertial systems combine cutting-edge fiber optic technology with rigorous quality control to deliver unmatched performance and reliability.

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Maintenance-Free

No moving parts, no wear. Our fiber optic systems require zero maintenance over their operational lifetime.

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Fast Startup

Achieve full navigation accuracy in as little as 5 minutes with rapid alignment technology.

🛡️

Rugged Design

IP66 rated, shock & vibration resistant — built for extreme marine and military environments.

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Long Warranty

Backed by long-term warranties and global customer support for peace of mind.

27+
Inertial Systems
15+
IMU Models
80K+
Hours MTBF
<0.1°
Heading Accuracy

Frequently Asked Questions

What is an Inertial Navigation System (INS)?

An INS uses accelerometers and gyroscopes to calculate position, orientation, and velocity without external references. Our systems use fiber optic gyros for high accuracy and reliability.

Are your gyrocompasses maintenance-free?

Yes, all our fiber optic gyrocompasses are solid-state with no moving parts, making them maintenance-free and highly reliable over long operational periods.

Can your systems be used underwater?

Yes, models like the CCS PTK-20 are specifically designed for underwater pipeline detection and subsea navigation with fast alignment and high precision.

Do you offer reconditioned units?

Yes, we offer reconditioned Anschütz gyrospheres with a one-year warranty, providing a cost-effective solution for legacy systems.

Get in Touch

For product inquiries, technical specifications, or custom solutions, visit our official website to contact the team directly.

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We respond promptly to all inquiries with technical support and quotation assistance.

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