Reaction Wheel RW150
EXA (Astro-und Feinwerktechnik)
The RW150 is a reaction wheel designed for small satellites, featuring integrated wheel drive electronics, various operation modes, and high torque and speed stability.
Key figurescomparable across the catalogue
- Mass
- 1.3 kg
- Power
- 2 W
- Largest dimension
- 150 mm
- Design life
- 7 years
Normalised to common units so this product can be compared with others in its category. The supplier's own wording is below.
As published by the supplier
- Angular momentum
- 1.0 Nms
- Nominal rotation speed
- 6000 rpm
- Nomial reaction torque
- 0.03 Nm
- Supply voltage
- 18 to 34 V
- Power consumption stand by (motor off)
- ≤ 2 W
- Power consumption @ 1500 rpm
- ≤ 5.0 W
- Power consumption @ 6000 rpm
- ≤ 10 W
- Power consumption maximum (max. torque/max. speed)
- 42 W
- Mass
- ≤ 1.3 kg
- Moment of inertia
- 1.592x10-3 kg m2
- Dimensions
- 150 mm x 150 mm x 60 mm
- Operation temperature
- -20 °C to +50 °C
- Start-up temperature
- -30 °C to +55 °C
- Survival temperature
- -40 °C to +60 °C
- Data interface
- RS485/RS422
- Design lifetime
- > 7 years In LEO
- Storage time
- > 3 years (incl. 240 h of ground operation)
About
The Reaction Wheel RW150 is a key component for attitude control in small satellites. It incorporates integrated wheel drive electronics with latch-up protection, ensuring robust operation. The device offers different operation modes for speed and acceleration, utilizing model-based controllers to achieve precise control. It is characterized by high torque and speed stability, resulting in low operational noise. The RW150 provides extensive housekeeping data, including speed, voltage, current, and temperatures, allowing for comprehensive monitoring. It features internal compensation for friction and time delays, enhancing its accuracy and performance. The mechanical design, coupled with high levels of alignments and balancing, ensures low emitted vibrations. The RW150 is designed for a design lifetime of over 7 years in Low Earth Orbit (LEO) and a storage time of over 3 years (including 240 hours of ground operation).
Documentation
Need the full ICD, test reports or a specific revision? Ask the supplier directly.