SG50-SF Technical Specification
SG50-SF
typeSingle-axis fiber optic gyroscope

The SG50-SF is a fully solid-state digital closed-loop low-precision single-axis fiber optic gyroscope based on the SAGNAC principle. It consists of an SLD light source, fiber optic coupler, photodetector, integrated optical phase modulator, fiber optic sensing loop, circuitry, and structure.

As a classic gyroscope, it features small size, high update rate, low latency, low noise, high bandwidth, and excellent environmental adaptability, making it an ideal choice for medium-to-low precision angular rate sensors. It can be widely used in various types of stabilization platforms and navigation and guidance fields.


  • Single 5V Power Supply: Simplified power integration.

  • High Update Rate: Up to 4000 Hz for real-time dynamic response.

  • Superior Full-Temperature Performance: Stable accuracy across extreme temperature ranges.

  • Instant Start-up: Achieves nominal specifications immediately upon power-up; no warm-up required.

  • Robust Environmental Adaptability: Withstands high-impact shocks and severe vibrations.

  • Interference Fringe Recognition: Supports full-dynamic-range cold starts.

  • High Reliability: Engineered for long-term mission-critical stability.

  • Zero Dead Zone: Ensures continuous, seamless measurement at low rates.

Main Specifications

Specifications

Parameter

1

Startup time (s)

3

2

Dynamic range (°/s)

±500

3

Zero position(°/h)

≤1

4

Zero bias stability ①(°/h ,1σ)

≤ 0.3/0 .2/0 .15

5

Zero bias stability ② (°/h ,1σ)

≤ 0. 1/0 .08/0 .05

6

Zero bias stability  ③(°/h ,1σ)

≤ 0.5/0 .3/0 .3

7

Zero bias repeatability(°/h, 1σ)

≤ 0. 1/0 .08/0 .05

8

Zero bias magnetic sensitivity (°/h/Gs)

≤0 .1

9

Random walk(°/h½     )

≤ 0.03/0 .02/0 .015

10

Scale factor nonlinearity(ppm)

≤20

11

Scale factor asymmetry(ppm)

≤5

12

Scale factor repeatability(ppm)

≤10

13

Threshold((°/h)

≤ 0.3/0 .2/0 .15

14

Resolution(°/h)

≤0 .3/0 .2/0 .15

15

Bandwidth

≥500

Note

10s smoothing, standard deviation;     100s smoothing, standard deviation;    Within the temperature range of -45   to +70  , 1  /min temperature change rate, 100s smoothing, standard deviation

 


Physical Specifications

Index

Parameter

1

Dimensions

50mm x50mm x 32mm(

2

Weight

120g±5g

3

Power supply

5V

4

Power consumpution

Steady-state power consumption
≤2 .5W;Full-temperature steady-state power consumption ≤4W
Instantaneous starting current:<1 .5a="">

5

Instantaneous starting current

<1 .5a="">

6

Operating temperature

-45℃~+70℃

7

Storage temperature

-55℃-+80℃

8

Electrical type

RS422

9

Vibration

6 .06g(RMS),20Hz ~2000Hz

10

Impact

200g,6 ms ~8 ms

 


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