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Product Introduction

DG-20A is a fully solid-state, high-precision, digital closed-loop, tactical-grade dual-axis fiber optic gyroscope. Based on the SAGNAC principle, it consists of an SLD light source, fiber coupler, photodetector, integrated optical phase modulator, fiber sensing coil, circuit, and structure. It is specifically designed for servo-stabilized platforms, featuring compact size, high update rate, low latency, low noise, and wide bandwidth. It is an ideal choice for medium and low-precision angular rate sensors and can be widely used in various types of stabilized platforms.

Product Features

· Single 5V power supply, low power consumption

· Excellent full-temperature performance

· Excellent start-up performance: meets nominal indicators instantly after power-on, no warm-up required

· Excellent environmental adaptability, resistant to strong shock and vibration

· Interference fringe recognition technology, supporting full dynamic range cold start

· High reliability

· No dead zone

Typical Applications

· Electro-optical platforms

· Radar stabilized platforms

· OTM Satellite Communication System

· Reconnaissance cameras

Technical Indicators

Technical Reference / Model	DG-20A
Start-up Time (s)	3
Dynamic Range (°/s)	±500
Bias (°/h)	≤1
Bias Stability① (°/h, 1σ)	≤1
Bias stability② (°/h, full temperature, 1σ)	≤1
Bias Repeatability (°/h, 1σ)	≤1
Random Walk (°/h ½)	≤0.1
Scale Factor Nonlinearity (ppm)	≤50
Scale Factor Asymmetry (ppm)	≤10
Scale Factor Repeatability (ppm)	≤20
Threshold (°/h)	≤1
Resolution (°/h)	≤1
Bandwidth (Hz)	≥500
Supply Voltage (V)	+5
Steady-State Power Consumption (W)	≤3
Full-Temperature Steady-State Power Consumption (W)	≤4
Start-up Instantaneous Current (A)	<1.5
Dimensions (mm)	64×60×40
Weight (g)	170±10
Communication Interface	RS422
Operating Temperature (℃)	-45~+70
Storage Temperature (℃)	-55~+85
Vibration (1σ, 20Hz~2000Hz)	6.06g
Shock (g, ms, 1/2sin)	30g, 6ms-8ms
Mean Time Between Failures (h)	8000