MG340 Technical Specification
MG340
typeThree-axis integrated fiber optic gyroscope

The MG340 is a fully solid-state digital closed-loop three-axis integrated fiber optic gyroscope, based on the SAGNAC principle, and consists of an SLD light source, fiber optic coupler, photodetector, integrated optical phase modulator, fiber optic sensing loop, circuitry, and structural components.

Structurally designed according to IMU, with a reserved mounting position for a quartz accelerometer, allowing users to install and use it directly.


  • Flexible Power Supply: Selectable +5V or +18V input with low power consumption.

  • 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. 1

5

Zero bias stability② (°/h, 1σ)

≤ 0.05

6

Zero bias stability③(°/h, 1σ)

≤ 0. 3

7

Zero bias repeatability(°/h, 1σ)

≤ 0.1

8

Zero bias magnetic sensitivity(°/h/Gs)

≤0.05

9

Random walk(°/h½     )

≤ 0.01

10

Scale factor nonlinearity(ppm)

≤20

11

Scale factor asymmetry  (ppm)

≤10

12

Scale factor repeatability(ppm)

≤20

13

Threshold(°/h)

≤0.1

14

Resolution(°/h)

≤0.1

15

Bandwidth Hz

≥200

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

112mm x112mm x 77.5mm

2

Weight

1kg

3

Power Supply

+5V+18V

4

Power Comsumption

Steady-state power consumption
≤4W, fully steady-state power consumption ≤8W

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

100g,6 ms ~8 ms

 


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