Gyrosens is a professional manufacturer and OEM/ODM provider of inertial sensors and navigation solutions since 2008.

GSGYR304F-H Strategic-Grade Triaxial FOG 1

GSGYR304F-H Strategic-Grade Triaxial FOG 2

GSGYR304F-H Strategic-Grade Triaxial FOG 3

GSGYR304F-H Strategic-Grade Triaxial FOG 4

GSGYR304F-H Strategic-Grade Triaxial FOG 5

GSGYR304F-H Strategic-Grade Triaxial FOG

GSGYR304F-H adopts a split architecture with separate sensing head and electronics. Bias stability <0.01°/h (10s smoothing) with HH version <0.0015°/h (100s), random walk <0.0005°/√h, and scale nonlinearity <5ppm. The Φ90mm sensing head enables precision mounting, total weight <1.35kg. This strategic-grade FOG serves the most demanding inertial navigation and precision pointing systems where ultimate stability defines mission success.

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Product Introduction

This product is an inertial angular rate sensor based on optical Sagnac effect, which is used to measure the rotation angular speed of the carrier along the direction of the sensitive axis. The digital closed-loop detection circuit is used to extract the optical path difference of the optical fiber loop sensitive by the external physical angular velocity. At the same time, the optical path difference signal is converted into the voltage signal for signal modulation and demodulation, and the closed-loop feedback and control are realized to achieve the purpose of real-time angular velocity signal detection.

This product is composed of two parts: optical sensing head unit and circuit box, which provides external three axis Angle increment information and internal temperature information.

Constituent part:

● Circuit box (erbium-doped fiber source, signal detection and control circuit, fiber coupler and photodetector).

● Sensing head (including fiber ring and Y-waveguide).

● Mechanical structure.

Function

● X/Y/Z three-axis gyroscope

● Short startup time

● Wide operating temperature range

● Support RS422 or RS485 interface

● Low power consumption

● Small size and light weight

● High reliability

Composition

● Gimbal Camera

● Flight control platform

● Inertial navigation system

● Inertial monitoring system

● Optical, photography and other platforms stable

● Inertial measurement unit

Interface Specification

Num	Define	Explain	Num	Define	Explain
1	+5V	Power input	6	+5V	Power input
2	GND	Power ground	7	GND	Power ground
3	Reserved Bits		8	RXD-	Receive Data-
4	RXD+	Receive Data+	9	TXD-	Transmit Data-
5	TXD+	Transmit Data+

5 (18)

Technical Specifications

Parameter	GSGYR304F-H	GSGYR304F-HH
Number of Axles	3	3
Power Voltage	+5V DC	+5V DC
Power (25°C)	<4W	<4W
Power (-45°C～+70°C)	<8W	<8W
SupplycCurrent	>2A	>2A
Output	RS422	RS422
Size	60×60×28mm (Circuit box) and Φ90×26mm	60×60×28mm (Circuit box) and Φ90×26mm
Run-up Time	3s	3s
Bias	<0.3°/h	<0.25°/h
Bias Stability 25°C	<0.01°/h (10s)	<0.005°/h (10s)
Bias Stability 25°C	<0.003°/h (100s)	<0.0015°/h (100s)
Bias Ttemperature Sensitivity 1°C/min	<0.01°/h	<0.01°/h
Bias Repeatability	<0.003°/h	<0.0015°/h
Bias Magnetic Sensitivity	<0.005°/h/Gs	<0.003°/h/Gs
Random Walk	<0.0005°/√h	<0.0003°/√h
Scale Factor Nonlinearity	<5ppm	<2ppm
Scale Factor Asymmetry	<2ppm	<2ppm
Scale Factor Repeatability	<5ppm	<5ppm
Threshold	<0.003°/h	<0.0015°/h
Resolution	<0.003°/h	<0.0015°/h
Bandwidth	≥200Hz	≥200Hz
Weight	<1350g	<1350g
Dynamic Range	±300°/s	±300°/s
Start-up Current	<2A	<2A
Operating Temperature	-45°C～+70°C	-45°C～+70°C
Storage Temperature	-55°C～+80°C	-55°C～+80°C
Supply Voltage Accuracy	<±5%	<±5%
Power Ripple	<50mV	<50mV