DTT family dynamic tuned gyroscopes are used in some high accurate products, such as North seeker, Stabilized Gyrocompass, Electromagnetic Gyro-Compass, azimuth vertical reference and course-keeping controller, etc.
| Serial number |
DTT-1 |
DTT-3 |
DTT-4 |
DTT-5 |
| data |
| Random Drift(°/h ) |
≤0.02 |
≤0.03 |
≤0.3 |
≤0.8 |
| G-Insensitive drift (day to day)(°/h) |
≤0.04 |
≤0.2 |
≤2 |
≤1.5 |
| G-Insensitive drift (nominal )(°/h) |
≤6 |
≤15 |
≤30 |
≤120 |
| G-Sensitive drift (nominal )(°/h/g) |
≤2 |
≤3 |
≤5 |
≤15 |
| Motor |
Power(three-phase) |
500HZ,20V |
500HZ,20V |
400HZ,16V |
500HZ,12V |
| Synchronize time(s) |
≤50 |
≤40 |
≤10 |
≤2 |
| Sencer |
Power(single-phase) |
8KHZ,7V |
16KHZ,7V |
16KHZ,5V |
8KHZ,3.5V |
| Output Gradient (mv/′) |
8±2 |
20~22 |
5±2 |
5~8 |
| Torquer |
Main direct current impedance (Ω) |
33.5±1 |
97±3 |
9.2±1 |
17±1 |
| Second direct current impedance (Ω) |
4.5±0.5 |
15±1 |
|
|
| Scale Factor of Torquer (°/h /mA) |
Main |
≥120 |
≥670 |
≥600 |
≥2100 |
| Second |
≥12 |
≥15 |
|
|
| Max instantaneous torque rate (°/s) |
15 |
60 |
130 |
350 |
| Shock |
30g 11ms |
50g 11ms |
50g 11ms |
150g 6ms |
| Operating Temp(℃) |
-40~+65 |
-40~+65 |
-40~+70 |
-45~+70 |
| physical |
Size(mm) |
φ54×74 |
φ55×80 |
φ29×50.5 |
φ21.4×30 |
| flange(mm) |
55×55 |
58×58 |
30×30 |
21.5×21.5 |
| Weight(g) |
730 |
700 |
150 |
45 |
DTT-1.pdf DTT-3.pdf DTT-4.pdf |