Main parameters of gyroscope
Bias stability | ≤0.001°/h (100s Standard deviation) | |||||||
Bias repeatability | ≤0.0003°/h | |||||||
Angular random walk | ≤0.00015°/√h | |||||||
Magnetic field sensitivity | ≤0.001°/h/Gs | |||||||
Total error of scale factor | ≤2ppm(1σ) | |||||||
Measuring range | -400~400°/s | |||||||
Start time | ≤5s | |||||||
Operating temperature | –40℃~+65℃ | |||||||
Storage temperature | –55℃~+85℃ | |||||||
Shock | 30g/11ms(half-sine), 75g/6ms(sine) | |||||||
Vibration | 7.2g/5min (3 directions) | |||||||
Frequency(Hz) | 10 | 100 | 200 | 300 | 600 | 1000 | 2000 | |
Power(g2/Hz) | 0.1 | 0.4 | 0.1 | 0.02 | 0.005 | 0.00003 | -6dB | |
Jitter frequency | 300Hz~420Hz, the jitter frequency of type A, type B and type C gyroscopes decreases successively, which should be avoided in the design of system structure | |||||||
Low pressure | Altitude 5000m | |||||||
MTBF | 15000h | |||||||
Storage life | 15a | |||||||
Size | (167±1)mm×(151±1)mm×(58±1)mm | |||||||
Weight | 2.90±0.1kg | |||||||
Power consumption | ≤4W |
Mechanical interface
Figure 1 Shape and mounting dimensions of gyroscope
Mass Center
Figure 2 Mass Center for gyroscope
Electrical interface
The electrical interface adopts J30J-37ZK socket, as defined in the following table.
Table 1 Interface definition
Node number | Name | Description |
9;27 | BTTL | Square wave output signal 2, TTL level, for phase detection |
10;28 | GND | Signal ground |
11;29 | ATTL | Square wave output signal 1, TTL level, for phase detection |
12 | PT1000-1 | Platinum resistance 1 |
30 | PT1000-2 | Platinum resistance 2 |
13 | PT1000-3 | Platinum resistance 3 |
31 | PT1000-4 | Platinum resistance 4 |
14;32 | PT1000-COM | 4 platinum resistance common ground |
15;33 | GND | ±5V Power supply ground, connected with the laser gyroscope housing |
16;34 | +5V | +5V Power supply |
17;35 | +15V | +15V Power supply |
18;36 | +15V_GND | +15V Power supply ground, Isolation from the laser gyroscope housing |
19;37 | -5V | -5V Power supply |
Other pins | Manufacturer reserve |
Cautions for use
- Gyroscope should be avoided by impact, knock;
- Gyroscopes with the same jitter frequency should be avoided in the same inertial navigation equipment;
- Pay attention to the use of spring pad when installing the gyroscope. It is recommended to use M5 hex socket screw with grade 9 (including) or above, and the recommended torque value is 7NM.