Fibre optic gyroscope indicators

1

Zero bias stability at room temperature (10s, 1σ)

(°)/h

≤0.2

2

Zero bias repeatability at full temperature (1σ)

(°)/h

≤0.5

3

Zero bias stability at full temperature (100s, 1σ)

(°)/h

≤0.5

4

Scale factor nonlinearity (1σ)

ppm

≤100

5

Scale factor repeatability

ppm

≤100

6

Measurement range

（°）/s

±800

7

Random walk coefficient

  (°) /√h

≤0.02

8

Bandwidth

Hz

≥200

Accelerometer indicators

9

Bias stability at room temperature (10s, 1σ)

mg

≤0.1

10

Bias repeatability at full temperature (1σ)

mg

≤0.5

11

Bias stability at full temperature (10s, 1σ)

mg

≤0.5

12

Scale factor nonlinearity (1σ)

ppm

≤300

13

Scale factor repeatability (1σ)

ppm

≤300

14

Range

g

±16

Navigation indicators

15

Initial self-alignment time (static after initial position binding or GNSS is valid)

min

≤6

16

Heading range

°

0~360

17

Pitch, roll range

°

±90，±180

18

Heading accuracy (1σ)

°

Initial self-alignment≤1

Pure inertial navigation ≤ 0.2 (1h)

Integrated navigation: ≤0.2 (single antenna)

Integrated navigation: ≤0.2/L (L baseline, dual antennas)

Dual-antenna GNSS combination: ≤0.2°/L, L is the baseline length

19

Pitch and roll accuracy (1σ)

°

Initial alignment ≤ 0.1

Pure inertial navigation ≤ 0.1 (1h)

Integrated navigation ≤ 0.06

20

Velocity accuracy (1σ)

m/s

Pure inertia ≤ 3 (10min)

Integrated navigation ≤ 0.03

21

Horizontal position (1σ)

m

≤ 1km (10min) (pure inertial)

≤ 2m (single point positioning)

≤ 0.05m (RTK differential positioning accuracy 0.05m)

22

Height (1σ)

m

≤ 3m (satellite single-point positioning)

≤ 0.05TK differential positioning accuracy 0.05m)

23

Data update rate

Hz

Fibre optic inertial navigation ≤ 100;

IMU ≤ 1000

Others

24

Power supply

V DC

12~30

25

Digital interface

-

RS422

26

Operating temperature

℃

-40~60

27

Storage temperature

℃

-55~75

28

Dimensions

mm

70×65×54

29

Weight

g

350