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Fiber Optic Gyrocompass

The fiber optic gyrocompass is a high-precision marine navigation instrument that calculates carrier attitude and heading via fiber optic gyroscopes and accelerometers. Compared with traditional mechanical gyrocompasses, it features fast startup, compact size, no moving mechanical parts components and low maintenance cost, widely applicable to navigation of all types of vessels. Centered on all-solid-state fiber optic gyro technology and integrated with satellite/inertial navigated algorithm, it outputs accurate heading, pitch, roll and full attitude data.
 
In 2019, domestically-developed fiber optic gyrocompasses were equipped on China’s new-generation naval warships and passed polar voyage tests, breaking overseas technological monopoly.
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Product Description

Technical Features

Composed of fiber optic gyro, accelerometer and a GNSS module, with strapdown design, free of rotating mechanical components parts.the product adopts strapdown design without rotating mechanical parts.


Item

Specification

Heading Accuracy

Up to 0.1° secant latitude (gyro-only standalone mode)

Heave Measurement Precision

5 cm or 5‰ of measuring range, whichever is larger

Data Output Rate

Configurable from 0.025 Hz to 200 Hz

True North Calculation

Realized with auxiliary GNSS signals


Product Development

Domestic technical breakthrough: The fiber optic inertial navigation product developed by Harbin Navigation Technology completed industrial transformation in 2019, leading the ship-borne inertial navigation industry into the optoelectronic strapdown era.

Harbin Seaward Navigation Technology completed industrialization in 2019, leading the shipborne inertial navigation industry into the optoelectronic strapdown era.

Technical Specifications


Model

Rated Voltage

Precision

System Configuration

Protection Grade

Safety Distance

Static Error

SINS-FOG-C001

DC 24V

≤0.75°/secΦ

Inertial Unit: SINS-FOG-C001Heading Control Unit: C001-DC/DC-2/DC-3

IP65(Inertial)
     IP20(Control)

Standard Gyro:105.2cm
     Gyro Spare:49cm

Heading≤0.3°

SINS-FOG-G001

DC 24V

≤0.5°/secΦ

Inertial Unit: SINS-FOG-Q001Heading Control Unit: C001-DC/DC-2/DC-3

IP65(Inertial)
     IP20(Control)

Standard Gyro:112.7cm
     Gyro Spare:87.6cm

Heading≤0.02°

SINS-FOG-H001

DC 24V

≤0.3°/secΦ

Inertial Unit: SINS-FOG-H001Heading Control Unit: C001-DC/DC-2/DC-3

IP65(Inertial)
     IP20(Control)

Standard Gyro:108.6cm
     Gyro Spare:89.3cm

Heading≤0.02°

SINS-FOG-M001

DC 24V

≤0.1°/secΦ

Inertial Unit: SINS-FOG-M001Heading Control Unit: C001-DC/DC-2/DC-3

IP65(Inertial)
     IP20(Control)

Standard Gyro:98cm
     Gyro Spare:49.8cm

Heading≤0.05°


Application Fields

Ship navigation, multibeam bathymetry, dredging, dynamic positioning, motion status monitoring, platform stability monitoring, and safe and reliable navigation. As of 2024, fiber optic compasses are mainly used in:

◉ Military applications: New types of warships for the People's Liberation Army Navy, 10,000-ton-class destroyers


◉ Polar research: The "Xuelong" research vessel


◉ Civilian applications: Dredging projects, platform stability monitoring


◉ Scientific research: Marine gravity field measurement, surveying (multibeam echo sounder/LIDAR), dredging, dynamic positioning, motion status monitoring, platform stability monitoring, and safe and reliable navigation, etc.


Software Description

Terminal software supports high-resolution split-screen display with full-angle clear visualization. Intelligent software enables flexible layout configuration and large-screen display expansion as customized demands.

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SeawardX Technologies (Nantong) Co., Ltd. established in June 2022, is a high-tech enterprise specializing in lightweight phased array radar technology, integrating R&D, production, sales, and service.

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