MicroWheel 1000
Microsat Systems Canada
The MicroWheel 1000 (MW 1000X and MW 1000DX) is a reaction wheel torque actuator and angular momentum storage device for mini-satellites and microsatellites, designed for satellites requiring less than 1000 mNms of momentum storage.
Technical specifications
- Momentum
- 1.1 Nms
- Torque
- 30 mNm
- Mass
- < 1.44 kg
- Dimensions
- 129 mm × 129 mm × 89 mm
- Power
- < 1.5 W (Idle)
- Power (2)
- < 9 W (Steady-state)
- Power (3)
- < 50 W (Peak)
- Supply voltage
- 28 V ± 6 V
- Operating temperature
- -24 °C to +61 °C
- Lifetime
- > 7.5 years
- Interface
- Asynchronous RS-422/485
About
The MicroWheel 1000, part of MSCI’s High Performance Attitude Control product line, serves as a reaction wheel torque actuator and angular momentum storage device specifically for mini-satellites and microsatellites. This 1000-series MicroWheel is engineered for applications where momentum storage requirements are less than 1000 mNms. It functions as a “smart” sensor/actuator pair, integrating both a reaction wheel and an optional solid-state angular rate sensor. Both components are managed locally by an embedded micro-controller, which implements local speed and torque control loops for the reaction wheel. This allows the reaction wheel to precisely track speed or torque commands issued by a satellite’s attitude control computer. MSCI highlights the extensive flight heritage of its world-leading MicroWheels. The MW 1000 MicroWheels offer a simple, drop-in solution for satellite control, performing all motor control tasks internally via a serial data interface to generate the exact torque requested by the Attitude Control System (ACS) computer. Key capabilities include a spaceflight-proven design, low power consumption, and an all-in-one control and navigation solution when equipped with the optional rate sensor.
Documentation
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