Reaktionsrad RW25 für Kleinsatelliten
RW25 Features:
- Eine der jüngsten RW-Entwicklungen
- Speziell für Nano-Satellitenanwendungen entwickelt
- Integrierte Elektronik, die über ihre digitale Schnittstelle einen unabhängigen Betrieb ermöglicht
RW25
| Parameter | RW 25 |
| Angular momentum | 30 mNms |
| Nominal rotation speed | 5000 rpm |
| Nomial Torque (max. commandable) | 2 mNm (more by design possible) |
| Communication | SPI preferred (CAN possible) |
| Power interface | |
| Supply voltage | 5 V |
| Power Consumption for WDE and 1 Wheel | |
| maintaining nominal rotation speed | < 1.5 W |
| maximum consumption (max. torque @ max. speed) | < 2.8 W |
| Mechanical interface | |
| Mass | 200 g |
| Dimension Single Wheel | 50mm x 50mm x 25.5mm |
| Temperatures | |
| Operation | -20 °C to +50 °C |
| Non-operation | -40 °C to +65 °C |
| Design lifetime | |
| 2 year in low earth orbit | |
| 5 years possible by design, but a life time test shall be performed for proof | |
| Storage time | 2 years (includes up to 240 hours of ground operations) |
| Design change flexibility without radical design change (mass, power may change) | Increased/decreased angular momentum and torque possible |