SG70-SF Technical Specification
SG70-SF
typeSingle-axis fiber optic gyroscope

The SG70-SF is a fully solid-state digital closed-loop tactical-grade 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 structural components.

As a classic gyroscope model, it possesses high stability and high reliability, while also boasting superior performance indicators, and is widely used in navigation, guidance, and control fields.


  • Single 5V Power Supply: Simplified power integration.

  • 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

Main Specifications

Specifications

parameter

1

Startup time S

3

2

Dynamic range(°/s)

±500/±300/±300

3

Zero position(°/h)

≤0 .5

4

Zero bias stability① (°/h)

≤ 0. 1/0 .05/0 .03

5

Zero bias stability② (°/h, 1σ)

≤ 0.05/0 .015/0 .01

6

Zero bias stability③(°/h, 1σ)

≤ 0. 1/0 .08/0 .05

7

Zero bias repeatability(°/h, 1σ)

≤ 0.05/0 .015/0 .01

8

Zero bias magnetic sensitivity (°/h/Gs)

≤0 .05/0 .05/0 .01

9

Random walk(°/h½    )

≤ 0.01/0 .005/0 .003

10

Scale factor nonlinearity(ppm)

≤10

11

Scale factor asymmetry (ppm)

≤5

12

Scale factor repeatability (ppm)

≤10

13

Threshold(°/h)

≤0 . 1/0 .05/0 .03

14

Resolution(°/h)

≤0 .3/0 .2/0 .15

15

Bandwidth(Hz)
 

≥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

70mm 70mm x 30mm

2

Weight

200g±10g

3

Power Supply

5V

4

Power Consumption

Steady-state power consumption
≤ 2 .5W, fully steady-state power consumption ≤ 4W

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

30g,6 ms ~8 ms

 


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