REACTION WHEEL ASSEMBLY (RWA05)
The RWA05 by Azista BST Private Limited is a reaction wheel assembly for satellites with integrated fibre optical gyro. The integrated gyro enables precise speed, angular rate and position control loops as they have been pioneered on Berlin satellites since 1994. The RWA05 comes in two versions: a high-torque and a low-torque variant.
| CHARACTERISTICS | RWA05 | RWA05-24 |
|---|---|---|
| Momentum | 0.5Nms | |
| Velocity | Min +/- 500 rpm – Max +/- 5000 rpm +/-2 rpm Accuracy | |
| Net Torque | 16.0mNm @ 500 rpm 14.2mNm @ 5000 rpm | 8.6mNm @ 500 rpm 6.8mNm @ 5000 rpm |
| Power Supply | 5V Electronics 17-32V Motor | 5V Electronics 7-24V Motor |
| Power Consumption | 0.5W @ 5V 0.07A @ 3000RPM 0.8A @ max. torque | 0.5W @ 5V 0.15A @ 3000RPM 0.9A @ max. torque |
| Command Interface | UART RS422 | |
| Dimensions | 105.0 x 106.6 x 109.5 mm³ | |
| Temperature | -30°C to +50°C (Storage) -20°C to +40°C (Operation) | |
| Design Life | 5 years LEO | |
| Space Heritage | Yes | |
| Radiation Test (Co60) | 30krad | |
| Mass [kg] | 1.70 (RW + WDE + Gyro), 1.55 (RW + WDE) | |
