SG-50M/50/50C is an all solid-state digital closed-loop medium and low precision single axis fiber optic gyroscope, based on the Sagnac principle. It is composed of an SLD light source, fiber coupler, photodetector, integrated optical phase modulator, fiber sensing ring, circuit, and structure.

As a classic model, it constantly iterates and upgrades, featuring small size, high update rate, low latency, low noise, high bandwidth, and strong environmental adaptability. It is an ideal choice for medium to low precision angular rate sensors and can be widely used in various types of stable platforms and navigation guidance fields.

Features

٭ Single 5V power supply

٭ Up to 4000Hz update rate

٭ Excellent full temperature performance

٭ Excellent starting performance, capable of reaching nominal specifications upon power on, without the need for preheating

٭ Excellent environmental adaptability and resistance to strong impact and vibration

٭ Interference stripe recognition technology, supporting full dynamic range cold start

٭ High reliability

٭ No dead zones

Application

• Optoelectronic platform

• Radar stabilization platform

• Active communication system

• Guidance head

• Missile borne control system

• Heading attitude instrument

Specifications

Parameter	Standard	Unit
Start time	3	S
Range	±500	(°/s)
Zero position	≤1	(°/h)
Bias stability①	≤ 0.3/0.2/0.15	(°/h, 1σ)
Bias stability②	≤ 0.1/0.08/0.05	(°/h, 1σ)
Bias stability③	≤ 0.5/0.3/0.3	(°/h, 1σ)
Bias repeatability	≤ 0.1/0.08/0.05	(°/h, 1σ)
Bias magnetic sensitivity	≤ 0.1	(°/h/Gs)
Random Walk	≤ 0.03/0.02/0.015	(°/h 1/2)
Scale factor nonlinearity	≤ 20	ppm
Scale factor nonlinearity	≤ 5	ppm
Scale factor repeatability	≤ 10	ppm
Threshold	≤ 0.1/0.08/0.05	(°/h)
Resolution	≤ 0.1/0.08/0.05	(°/h)
Bandwidth	≥500	(Hz)
Physical/Electrical
Power supply	+5	V
steady state power consumption	≤2.5	W
steady state power consumption (Full Temp)	≤4	W
Starting instantaneous current	＜1.5	A
Dimension	50㎜×50㎜×32	㎜
Weight	120±5	g
Electrical form	RS422
Environmental adaptability
Work Temp	-45 ~ +70	℃
Storage Temp	55 ~ +80	℃
Vibration	6.06g (RMS), 20Hz-2000Hz
Shock	30, 6-8	G, ms
Mean time between failures	8000	H

Overall Dimension

Single-axis Fiber Optic Gyroscope

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